zetor - cals

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ZETORThis operator’s manual will help you to become familiar with the operation and maintenance of your new tractor.In spite of fact many of you have reach experiences in operation of various Zetor tractor models, please, readcarefully all safety rules and operating instructions in this operator ’s manual before attempting to operate thetractor.You will find a lot of new information and receive a perfect overview how to use the tractor with highest efficiency atvarious operations.Your new Zetor tractor will be your reliable friend if observing the mentioned safety rules, tractor maintenance andsafe operation.Manufacturer of Your tractor wishes you thousands of satisfactorily worked hours.

ZETORBrno

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Information about technical specifications, design, equipment, material, and external appearance is valid in the time of thisoperator’s manual issue. Manufacturer reserves rights for changes.



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CONTENTS

The operator’s manual contains de-scription, operation and maintenance ofstandard and optional tractor equipment.The option that isn’t a part of standardtractor equipment can’t be a subject ofclaim in case it isn’t assembled fromfactory and is marked by (∗) in this ma-nual.Service check book isn’t a part of opera-tor’s manual. This is the separate book-let that is passed to you at purchasing ofyour new tractor.

PageLocation of serial numbers .......................................................................................... 6Safety instructions for users ........................................................................................ 8Preventive daily service ............................................................................................ 11Acquaintance with tractor .......................................................................................... 19Operation .................................................................................................................. 43Transportation ........................................................................................................... 57Agricultural machine PTO drive ................................................................................ 65Hydraulic system.......................................................................................................73Front and rear axle ....................................................................................................89Ballast weights .......................................................................................................... 99Tractor maintenance ............................................................................................... 105Maintenance instructions ........................................................................................ 127Adjustment .............................................................................................................. 153Electrical installation ............................................................................................... 167Main technical parameters ...................................................................................... 181



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CAB TRACTORSZETOR 3321 - 33 kWZETOR 4321 - 44 kWZETOR 5321 - 47 kWZETOR 6321 - 51 kWZETOR 7321 - 58 kW

A 1



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CAB TRACTORSZETOR 3341 - 33 kWZETOR 4341 - 44 kWZETOR 5341 - 47 kWZETOR 6341 - 51 kWZETOR 7341 - 58 kW

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LOCATION OF SERIAL NUMBERS

M97-vyrcisla



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LOCATION OF SERIAL NUMBERSWhenever you contact your authorized service dealer or the factory for order of service parts, always know the model and serialnumbers of your tractor. For your convenience, write those numbers in the frames below.

Tractor model

ZETOR 3321 ZETOR 3341ZETOR 4321 ZETOR 4341ZETOR 5321 ZETOR 5341ZETOR 6321 ZETOR 6341ZETOR 7321 ZETOR 7341

The “left“, “right“, “front“ and “back“ sideof the tractor is determined by sitting onthe seat in the normal operator ’s positionand in the traveling direction.Manufacturer reserves rights for chan-ges of design and option, that improvesthe tractor features.

Tractor serial number Engine serial number

A 7



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SAFETY INSTRUCTIONS FOR USERS

You will find this symbol at all importantwarnings identifying the safety of tractoroperation. Keep all safety massagesand however regardless of the hazard,be extremely careful. Inform your co-operators and other users on these mas-sages.

GENERAL SAFETY REGULATIONS1. Only a trained operator having a validdriving license and being properlyacquainted with operating and safetyrules can operate the tractor.2. Except of safety warnings mentionedin this operator’s manual you must re-spect all general safety and traffic re-gulations of country where the tractorworks.

PROPER CLOTHING3. Don’t wear a loose clothing and freeflying long hair at operation.4. Use suitable (prescribed) personal pro-tection means (working boots, glovesetc.) at work.

ENGINE START5. Don’t start the engine by driving tractordownhill.6. Starting tractor by means of towingwith another tractor or vehicle is allowedwhen the pull bar is used only.

1. Start the tractor fromdriver’s seat only with shift-ing lever in neutral position.Life hazard at starting bystarter connector short cir-cuit.

2. The key must be at the key switch inposition "I".3. When preheating engine by electricalheater, plug the heater first and connectthe cable into electricity after. After pre-heating disconnect the cable from ele-ctricity first.WARNING: Electrical shock hazard

OPERATION10. Hoses of hydrostatic steering, brakesand fuel system must be checked andreplaced in case of any damage indica-tion.

11. The damage indication is for exam-ple: surface cracks on hose, looseningof hose fittings (verify it by pulling of ho-se from fitting) and mechanical damageof hose. Brakes and steering must bepermanently in perfect condition.12. Brake pedals must be latched attransportation with trailers and imple-ments on the road.13. Driving downhill without shifted gearis forbidden!14. Pay special attention when driving onhilly, muddy, sandy, icy and uneven ter-rain.15. Don’t exceed the max. specified in-clination angle 11° for 2WD tractors and12° for 4WD tractors.16. Don’t exceed the max. total weight oftrailers mentioned on the tractor serialnumber plate or the rear fender label.17. Don’t use the diff-lock when drivinginto the turning.18. Never get out or into the driving trac-tor. It is forbidden.19. Reduce the travel speed to 15 km/hwhen transportation with agricultural im-plements hitched in front three pointhitch.20. The front axle load must not be lowerthan 18 to 20 % of total tractor weightwhen transportation with agricultural im-plements hitched in rear three pointhitch.



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SAFETY INSTRUCTIONS FOR USERS21. Reduced gears 1R, 2R,3R must notbe used in case that tractors Z 6321, Z6341, Z 7321, Z 7341 are implementedwith machines and implements having abig resistance when engine speed isdropping and the tendency of engine isto be stopped.22. Reduced gears 1R, 2R must not beused in case that tractors Z 4321, Z4341, Z 5321, Z 5341 are implementedwith such machines.

TRANSPORTATION OF PERSONS,OPERATION23. Number of persons transported bytractor must not exceed numbermentioned in tractor technical license.24. Persons, unauthorized to work withattached implement, must not standbetween tractor and hitched implement(machine).25. Make sure neither any person norany obstacle allows driving beforestarting tractor move.26. Max. allowed travel speed of tractorand trailer equipped with air trailerbrakes is 30kmph. Only tractor models Z4341, Z 5341, Z 6341, Z 7341 equippedwith braked front driving axle can travelby max. allowed speed (tractor andtrailer) 40 kmph.

TRACTOR RELEASE, PUSHING27. Use a pull bar or a rope for releasingof immobilized tractor. Never use chains.It is life dangerous to stand near therope when releasing the tractor.28. Front hook assembled on front tractorframe serves for pulling of the tractoralone only, i.e. without trailer or anotherimplement.29. Never use free wooden blocks,planks or bars put between tractor andpushed subject when pushing other ve-hicles (trailers, wagons etc.).

LEAVING TRACTOR30. Do not park the tractor with attachedimplement in lifted position.31. Don’t forget to brake the tractor withparking brake (shift the gear) remove thekey from key switch and lock the cabbefore leaving tractor.32. Shift the reversor lever into forwardposition at tractor equipped with reversorgear.33. Brake the tractor with parking brakebefore leaving tractor with running engi-ne.

AT STOPPED ENGINE ONLY34. All activities like refueling, cleaning,lubrication, and tractor or attachedimplement adjustment can be done atstopped engine and stopped movingtractor parts only, except of brake,

hydraulics and charging functioninspection.35. Stop the engine before removingbonnet side shields. The engine can runin closed room and house only when theperfect ventilation works. Exhaust gasesare health dangerous.

FIRE PREVENTIVE RULES36. Refuel the tractor after finishing workand at stopped engine.37. Don’t refuel the fuel tank up to the topin summer season. Wipe the fuelimmediately when spilled.38. Don’t refuel the tractor nearby theopen flame, don’t smoke.39. Don’t smoke and don’t use the openflame when inspecting the battery ele-ctrolyte level.40. Keep properly the fire prevention re-gulations in areas with increased fire ha-zard (hay-lofts, straw-stocks etc.).41. If the tractor is equipped with a fireextinguisher keep it ready for use.

HEALTH AND ENVIRONMENT PRO-TECTION42. Tractors are not equipped with spe-cial cab air ventilation filters. That ’s whytractors are not intended for work withaerosols and other substances harmfulto health. Kerosene, diesel fuel, mineraloils and other products from crude oilused for operation and maintenance of



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SAFETY INSTRUCTIONS FOR USERStractor may cause an injury in case ofdirect contact with skin and it can irritatemocous membranes, eyes, digestive orrespiratory organs. Some of them cancause poisoning when swallowed.43. Persons working with crude oilproducts must properly keep safety andhygienic regulations, they must use thesuitable protectors and work in properlyventilated areas.WORKING WITH CRUDE OIL PRO-DUCTS44. Wash properly your hands with milddetergent and protect them with suitableskin ointment or cream after finishingwork or before eating.45. Remove oil drops from quickcouplers(from male and female) by textile ma-terial after disconnecting or connectinghydraulic circuit.



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PREVENTIVE DAILY SERVICEDo this service every day or at least every 8 to 10 hours.

A 8



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PREVENTIVE DAILY SERVICE

A 9 A 10 A 11

FUEL SYSTEM LEAKAGEInspect the fuel system for leakage in-cluding the fuel tank. Repair immediatelyany leaks.

ENGINE OIL LEVELCheck the engine oil level after unscre-wing and removing of oil dipstick. In-spect the lubrication system for leakage.Maintain the oil level between dipstickmarks.

COOLING SYSTEMInspect the engine cooling system forleaks. Check the coolant level. Add thecoolant to correct level.

Release the filler cup aftercoolant temperature coolingdown. Avoid scalding!



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A 12 A 13 a 14

SERVICE BRAKESCheck the brake fluid level in the brakefluid expansion reservoir. Inspect thebrake and clutch circuit for leaks if lossof brake fluid level.

AIR BRAKESInspect the air brake system leak andtractor break efficiency with trailer (see„inspection for air brake leak “).

STEERINGCheck the oil level in the hydrostaticsteering oil tank by dipstick. Inspectstatus of hydrostatic steering circuithoses for damage and oil leak. Checkand Retorque bolts and nuts of steeringtie-rods and arms.



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A 15 A 16 A 17

TIRES AND WHEELSCheck the inflation air pressure of frontand rear tires. Inflate them up to the re-commended pressure according to ope-rating conditions.

Check bolt and nut tightening atfront and rear wheels

AIR CLEANERAir cleaner is equipped with clogging in-dicator located on the suction pipe. Theindicator is visible after side shield re-moval. If the air filter clogging, clean thecleaner and fix the correct function ofindicator by the following way: push thepush-button on the indicator body (2a)you will mechanically release the indica-tor lock of read field indicating clogging.Indicator is again working (2b).

CAB FILTRATIONCheck and eventually clean cab filterslocated under the roof in front part.Filters are accessible after removing ofgrills.Filter exchange interval depends upondustiness of working condition. Partialregeneration of filters can be done byshaking-out or blowing by press air.



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A 18 A 18a A 19

HITCHESCheck the status of hitches and attach-ments including the trailer.

AFTER OPERATION WITH FRONT IM-PLEMENTSClean the front part of radiator by thepress air and inspect the front threepoint hitch hydraulic circuit for leaks.

SHORT FUNCTIONAL TESTCheck if the lubrication indicator light is“off“ after starting engine. Check thefunction of charging (charging controllamp must be “off“). Check the hydrauliccircuit of hydrostatic steering for leaksand function.



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NOTE



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NOTE



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NOTE



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ACQUAINTANCE WITH TRACTOR

Tractor user must be properly acquain-ted with recommended operating andsafety rules in advance. It is too late todo it within operation!

PageSeat adjustment for driver’s weight (mars svratka) ................................................... 21Longitudinal seat adjustment .................................................................................... 21Vertical seat adjustment ............................................................................................ 21∗Driver’s seat ............................................................................................................ 22Seat adjustment for driver’s weight ........................................................................... 22Longitudinal seat adjustment .................................................................................... 22∗Passenger’s seat.....................................................................................................23Safety cab ................................................................................................................. 23Heating control panel ................................................................................................ 24Control panel on right cab pillar ................................................................................ 24Front and rear wiper switch ....................................................................................... 24Ventilation outlets ......................................................................................................25Front wind shield defrosting ...................................................................................... 25Washer nozzle .......................................................................................................... 26Washer reservoir.......................................................................................................26Outside door opening ................................................................................................ 26Cab doors.................................................................................................................. 27Rear window.............................................................................................................. 27Opening for implementation purposes ......................................................................27Fuel tank ................................................................................................................... 28Draining opening .......................................................................................................28Average fuel consumption in litters per hour at Zetor tractor ....................................28Indicator lights ........................................................................................................... 30Key switch ................................................................................................................. 31Key in "0" position .....................................................................................................31Key in "I" position ......................................................................................................31Key in řIIř position .....................................................................................................32Reserve key position .................................................................................................32Low beam headlight switch (grill - cab) řAř ............................................................... 33Hazard light switch řBř .............................................................................................. 33Turn signal, headlight and horn toggle switch ........................................................... 34Throttle control lever .................................................................................................34Pedals and levers......................................................................................................34

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ACQUAINTANCE WITH TRACTORPage

Gear shifting lever ..................................................................................................... 35Road speed and reduced speed shifting lever .......................................................... 35Tractors with travel speed 40 kmph .......................................................................... 35Pto selection control lever (a) - black ........................................................................ 38∗PTO speed control lever 540 or 1000 rpm (b) - yellow............................................ 38∗Front wheel drive disengagement ........................................................................... 39∗Reversor shifting lever ............................................................................................ 39Compressor engagement ......................................................................................... 40Parking brake lever, pto shaft control lever and ∗ pick up hitch control lever ........... 40Differential lock ......................................................................................................... 40∗Front pto clutch valve control lever ......................................................................... 41∗Hi-Lo - toque multiplier ............................................................................................ 42Hi-Lo - function indication ......................................................................................... 42Safety rules when working with Hi-Lo ....................................................................... 42



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DRIVER’S SEAT

A 20 A 21 A 22

SEAT ADJUSTMENT FOR DRIVER’SWEIGHT (MARS SVRATKA)The suspended seat is adjustable fordriver’s weight from 50 up to 120 kg.Adjustment is done by turning of squareknob. Weight indicator is located in theslot of rear seat cover.Spring stroke is 120 mm.

Do not adjust the seat on the go.Danger of accident!

LONGITUDINAL SEAT ADJUSTMENTThe seat can be longitudinally adjustedwithin range ° 75 mm (11 positions) afterunlocking of left hand side lever.

VERTICAL SEAT ADJUSTMENTVertical seat adjustment is done by theright hand side lever by moving the leverfrom middle position to two marginal po-sitions within range ° 30 mm.



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∗DRIVER’S SEAT - GRAMMER

A 23 A 23a A 23b

∗DRIVER’S SEATTractor can be equipped with Grammeror KAB seat as an option.

SEAT ADJUSTMENT FOR DRIVER’SWEIGHTAdjust the seat by a plastic knob locatedon the front part of seat support

LONGITUDINAL SEAT ADJUSTMENTAdjust the seat longitudinal position by alever located on the left hand side of theseat



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DRIVER’S AND PASSENGER’S SEAT - SAFETY CAB

A 24 A 25

∗PASSENGER’S SEATPassenger’s seat is tiltable and is loca-ted on the left cab fender.Passenger’s seat can be tilted up for thebetter access to the driver’s seat.

SAFETY CABRear tiltable window and cab doors areequipped with inner handles and gasstruts. Front window is equipped with thesunshade. The internal cab space isnoise protected. The roof is optionallyequipped with a tiltable cover.

Use steps for entering and leav-ing the cab. Use handles for yoursafety.

∗Colored (tinted) glasses can be orderedas an option.



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SAFETY CAB

A 26 A 27 A 28

HEATING CONTROL PANEL1. Four-position blower switch- vertical position - blower is řoffř- first right position - blower low speed- second right position - blower middle

speed- third right position - blower high speed2. Shut off heater control.3. Heater valve control lever.- right lever position - heating řonř- left lever position - heating řoffř∗Radio can be assembled into the spaceunder heating system control panel

CONTROL PANEL ON RIGHT CABPILLAR4. Cab illumination light with switch5. Two speed front windshield wiper and

washer switch.6. Rear window wiper switch.

FRONT AND REAR WIPER SWITCHFront and rear wiper switch is located onthe right hand side cab pillar.0. vertical position - wiper is řoffř1. right position - low wiper speed2. right position - high wiper speed- front windshield washer is řonř after

switch pressing.Max. time of uninterrupted washer pumpwork is 10 sec.



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SAFETY CAB

A 29 A 30

VENTILATION OUTLETS7. Position adjustable outlets of ventila-

tion and heating.

FRONT WIND SHIELD DEFROSTINGFor fast defrosting of front wind shieldthe řAř middle outlets needs to bedirected to the front wind shield with 45„angle from vertical position the "B" sideoutlets directed towards front corners ofcab.After front wind shield defrosting the sideoutlets can be directed towards doorglasses for their step by step defrosting.After defrosting the outlets should beadjusted that way not to blow the airdirectly to the driver but to driver’s legs.



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FRONT WIND SHIELD WASHER - CAB DOORS AND WINDOWS

A 31 A 32 A 33

WASHER NOZZLEThe washer nozzle is located in theupper part of hood and is adjustable byneedle or steel wire of 0,8 mm diameter.The washer sprays after switch pressing.

WASHER RESERVOIRThe washer reservoir is located in thecab, on the right hand side of rear wallbehind the driver’s seat. The washerreservoir capacity is 2,5 litters. Anti-freeze mixture must be used in winterseason for filling of washer reservoir.

OUTSIDE DOOR OPENINGDoors can be locked from outside. De-press the lock button after unlocking anduse handle for door opening.



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CAB DOORS AND WINDOWS

A 34 A 35 A 35a

CAB DOORS1. Lever for door opening from inside2. Lever for door locking from inside

REAR WINDOWRear window is equipped with handleand is kept in the open position by gasstruts.

We recommend to latch thewindow in closed position whendriving on uneven terrain - dan-ger of window cracking. Beforestarting work with machines im-plemented in the rear three pointhitch be sure that the interferen-ce between hitched implementand opened rear window isavoided at the maximal lifting ofthe rear three point hitch. In caseof interference we recommend towork with closed window.

OPENING FOR IMPLEMENTATIONPURPOSESThe bottom window is rigid and isequipped with opening for connection ofcontrols with attached implements.



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FUEL TANK

A 36 A 37 A 37a

FUEL TANKPlastic fuel tank with capacity 120 littersis assembled at all models of tractors asa standard equipment.

Do not step on the fuel tank.

DRAINING OPENINGOpening for draining of impurities islocated in the bottom part of fuel tank.

AVERAGE FUEL CONSUMPTION INLITTERS PER HOUR AT ZETORTRACTORTractor Model Engine Load

100% 80% 50%Z 3321, 3341 10,2 8,40 6,40Z 4321, 4341 10,78 8,62 5,39Z 5321, 5341 11,52 9,21 5,76Z 6321, 6341 12,50 10,00 6,25Z 7321, 7341 14,04 11,23 7,02



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DASHBOARD

A 38 A 38a

1. Free position.2. Front wheel drive control switch with

indicator light.3. Working light switch with indicator

light.4. Fog light switch with indicator light.5. Position, high and low beam headlight

switch with indicator light.6. Warning light switch with indicator

light.7. Low beam roof-light switch with indi-

cator light.8. Differential lock control switch with in-

dicator light.

9. Toggle switch - turn signal, lights,horn (high and low beam headlightswitch, acoustic horn).



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INDICATOR LIGHTS

A 39

INDICATOR LIGHTS1. High beam light (blue). It lights if high

beam head lights are řonř. Turn sig-nal lever position-downwards in direc-tion of steering wheel axis.

2. Turn signal indicator light (green).3. Turn signal indicator light (green) -

first trailer.4. Turn signal indicator light (green) -

second trailer.5. Charging indicator light (red). This is

řonř after charging failure.6. Parking hand brake (red). It is řonř if

the hand brake applied.7. Indicator light of min. air pressure in

braking system (red): it lights if the airpressure for trailer air brakes dropsunder a critical margin i.e. 420 kPa.

8. Lubrication indicator light (red). It isřonř if the engine oil pressure dropsbelow 120 to 60 kPa.

9. Air cleaner clogging indicator light isřonř after air cleaner clogging(yellow), (not assembled).

10. Indicator light for warning lights11. Critical coolant temperature indicator

light is řonř after of temperature ex-ceeding of temperature approx.100„C (not assembled).

12. Indicator for torque mulplier (green -ON).

13. Indicator for torque mulplier (green -ON).

14. Indicator light in hydrostatic steeringcircuit fault.

15. Min. fuel level indicator light (orange).It lights if 1/6 to 1/10 fuel tank capa-city stays at the fuel tank.

16. Tachometer with engine hour coun-ter.

17. Front wheel drive indicator light (red).18. Fuel gauge.19. Free.20. Glowing indicator light (yellow), ( not

assembled).21. Air pressure gauge.22. Thermometer of coolant.



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INDICATOR LIGHTS - KEY SWITCH

A 39a A 40 A 41

KEY SWITCHKey switch is located on the front part ofsteering wheel support under the dash-board

KEY IN "0" POSITIONAll electrical appliances controlled by thekey switch are disconnected. The keycan be removed.

KEY IN "I" POSITIONAll electrical appliances controlled by thekey switch are connected except ofstarter motor. The key is in this positionwhen engine running.



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INDICATOR LIGHTS - KEY SWITCH

A 42 A 43

KEY IN “II“ POSITIONStarter motor is connected in this posi-tion. All electrical appliances controlledby the key switch are connected exceptof wipers, washer, blower of cab and AC.The key is turned automatically to řIřposition after starting.

RESERVE KEY POSITIONThe key is in reserve - not used position(some electrical systems are on) byturning the key into left from ř0ř position(.ř0ř position is necessary for insertingthe key) The key can not be removed inthis position, similarly as in řIř and řIIřposition.



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SWITCHES

A 44

LOW BEAM HEADLIGHT SWITCH(GRILL - CAB) “A“"0" řOffř."I" Low or high beam headlights in the

grill are řonř."II" Low beam headlights in the roof are

řonř (these lights are used only if thefront grill headlights are covered byattached implement hitched in frontthree point hitch).

HAZARD LIGHT SWITCH “B“"0" Hazard lights řoffř."I" Hazard lights řonř.



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SWITCHES, PEDALS AND LEVERS CONTROLLED BY DRIVER

A 45 A 46 A 47

TURN SIGNAL, HEADLIGHT ANDHORN TOGGLE SWITCH(lever underneath the steering wheel)a - Turn signal - right.b - Turn signal - left.c - Acoustic horn.High beam light - move the lever down-wards in direction of steering wheel axis.

THROTTLE CONTROL LEVERA - Max. throttle.B - Low idle.C - Stop.

PEDALS AND LEVERS1. Travel clutch pedal.2. Foot operated service brake pedals

connected by latch.3. Throttle pedal.



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PEDALS AND LEVERS CONTROLLED BY DRIVER

A 48 A 49 A 49a

GEAR SHIFTING LEVERMain shifting lever.The shifting lever grip is red.

ROAD SPEED AND REDUCED SPEEDSHIFTING LEVERReduction gear shifting lever .hare - road speedsN - neutralturtle - reduced speedsThe shifting lever grip is black.

TRACTORS WITH TRAVEL SPEED 40kmphAll models of four cylinder tractorsequipped with Carraro front driving axleand brakes in front final drive can optio-nally have 40 kmph.Front driving axle brakes are controlledby air-liquid amplifier depending uponpressure in the rear brake circuit oftractor. Hydraulic circuit of front brakes isfilled with brake fluid.



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SHIFTING PATTERN

A 50

Shifting pattern decal is fixed on the righthand side of front cab wind shield.1. Shifting pattern decal for transmission

with reduction, rear PTO shaft - 540RPM and ground PTO speed.

2. Shifting pattern decal for transmissionwith reduction, rear PTO shaft - 540or 1000 RPM and ground PTO speed

3. Shifting pattern decal for reversibletransmission with reduction, rear PTOshaft - 540 RPM and ground PTOspeed.

4. Shifting pattern decal for reversibletransmission with reduction, frontPTO- 1000 RPM rear PTO shaft - 540RPM and ground PTO speed.



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SHIFTING PATTERN

A 51

5. Shifting pattern decal for transmissionwith front PTO - 1000 RPM, reduction,rear PTO shaft - 540 or 1000 RPMand ground PTO speed.

6. Shifting pattern decal for reversibletransmission with front PTO - 1000RPM, reduction, rear PTO shaft - 540RPM and ground PTO speed.

Positions of reverse leverF - forwardR - reverse



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A 52 A 52a

PTO SELECTION CONTROL LEVER(A) – BLACKa - PTO ground speed - PTO is driven

by transmission - PTO speed de-pends upon the shifted gear speed.

N - neutral positionb - PTO Independent speed - PTO shaft

drive with 540 RPM, optionally 540 /1000 RPM.

At tractor equipped with reversor whenworking with PTO and with stopped trac-tor the reversor shifting lever must be inforward position (F).

∗PTO SPEED CONTROL LEVER 540OR 1000 RPM (B) - YELLOWc - 540 - RPMN - neutrald - 1000 - RPMTractor is equipped with the six splinePTO shaft end for 540 RPM as astandard. Tractor can be equipped withthe twenty-one spline PTO shaft end for1000 RPM as an option.

PTO speed shifting either 540 or1000 RPM is possible regardlessto assembled PTO shaft end - sixor twenty-one splines.

Both levers can be shifted at stoppedtractor only.PTO speed and spline shaft end typemust be chosen depending upon pre-scribed speed of implemented machine.



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a65 A 54

∗FRONT WHEEL DRIVE DISENGAGE-MENTFront wheel drive is disengaged bymeans of the switch located on the dash.Engaged front wheel drive is indicatedby indicator light that is a part of theswitch.

Driving with engaged front wheeldrive on the road is prohibited!Engaged front wheel drive usefor fields working only!

∗REVERSOR SHIFTING LEVER1. Forward drive - lever in forward posi-

tion (F).2. Backward drive - lever in reverse po-

sition (R).Altogether 10 forward speeds and 10 re-verse speeds are reached in combina-tion with reduction range. The mainshifting lever has 5 positions without re-verse gear. PTO shaft speed 1000 RPMis excluded at tractor with reversor.

Reversor lever does not have aneutral position. That’s whyneutral must be shifted by themain shifting lever for stoppingtractor.

Working with PTO at stopped tractor thereversor shifting lever must be in forwardposition (F).



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A 55 A 56 A 57

COMPRESSOR ENGAGEMENT1. Safety pin for compressor engage-

ment.2. Lever for compressor engagement.

The compressor must be everengaged when driving the tractorwith trailer or implement that isbraked with air trailer brakes.

PARKING BRAKE LEVER, PTO SHAFTCONTROL LEVER AND ∗ PICK UPHITCH CONTROL LEVER1. Control lever of PTO shaft clutch2. Parking brake lever3. Pick up hitch control lever

DIFFERENTIAL LOCKRear axle differential lock is controlledby switch located on the dash board. In-dicator light is řonř if the differential lockis engaged.Differential lock is disengaged by breakpedal depressing.



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A 58

∗FRONT PTO CLUTCH VALVE CONT-ROL LEVER1. Front PTO clutch valve control lever.a - engagedb - STOPClutch is engaged when the air press isminimally. 500 kPa (indicated on pressu-re gauge). The valve insures automaticdisengaging of PTO shaft if the airpresssure drops under 410 kPa ° 60kPa.

It’s life dangerous to do any re-pairs or cleaning of front attachedimplements driven by front PTOshaft if the lever is not in STOPposition.



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A 58a A 58b A 58c

∗ HI-LO - TORQUE MULTIPLIERTractors can be optionally equippedwith. torque multiplier. Torque multiplieris electro-pneumatically controlled bymeans of foot pedal located on the righthand side of clutch pedal. The tractiveforce of tractor is increased afterdepression of Hi-Lo pedal. Number oftransmission gears is twice higher (20/4)at tractors equipped with Hi-Lo.Hi-Lo (torque multiplier) is automaticallydisengaged after depressing of clutchpedal, brake pedals or after applying ofPTO control lever (i.e. at disengagedPTO shaft).

HI-LO FUNCTION INDICATIONThe indicator light on dashboard lightswhen the Hi-Lo is actuated.

SAFETY RULES WHEN WORKINGWITH HI-LO

For the reason of safety it isforbidden to press the travelclutch pedal and Hi-Lo pedalsimultaneously and to use the Hi-Lo when going downhill.



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OPERATION

Be familiar with shiftingpattern and test all posi-tions of shifting lever atstopped engine beforedriving new tractor.Be sure that the technicalstatus of tractor corres-ponds to the safety trafficcondition before driving.

PageEngine starting fail.....................................................................................................44∗Coolant heater .........................................................................................................45Engine starting with coolant heater ........................................................................... 45Turbocharged engine (at tractors Z 7321 and Z 7341 only) ......................................46Shifting from higher to lower gear ............................................................................. 48Driving downhill .........................................................................................................48Driving uphill.............................................................................................................. 49Gear shifting of reduced speeds ............................................................................... 49Tractor stopping - parking brake ............................................................................... 49Turbocharged engine stopping ................................................................................. 50Leaving tractor .......................................................................................................... 50Foot operated disk brakes......................................................................................... 51∗Single and double hose air trailer brakes ................................................................ 51∗Single and double hose air brakes .......................................................................... 52Warning device .........................................................................................................52Hydraulic trailer brakes ............................................................................................. 53In time of running in - first 100 hours .........................................................................54First 10 hours ............................................................................................................ 5410 hours after ............................................................................................................ 5470 hours after ............................................................................................................ 5570 hours after ............................................................................................................ 55100 hours after .......................................................................................................... 55

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ENGINE STARTING - TRACTOR IS EQUIPPED WITH STARTING SAFETY INTERLOCKSYSTEM

A 59

Be sure the tractor is braked byparking brake and shifting leveris in neutral position beforestarting engine.

Prime the fuel system by 5 to 10 strokesof hand fuel transfer pump and screwproperly the knob into the pump body.

A 60

1. Insert the key into the key switch ("0"position).

2. Depress the clutch pedal.3. Move the shifting lever, shifted in

neutral, towards you - shifting safetyinterlock system will be actuated bythis way.

4. Turn the key through "I" position into"II" position (start). Crank the engine3 - 5 second, than release the keyand turn it into "0" position. Enginecranking can be eliminated at higherambient temperature.

5. Set the max. throttle and again movethe shifting lever, shifted in neutral,towards you - starting safety systemwill be switched on.

6. Turn the key through "I" position into"II" position (start). Release the keyimmediately after engine starting andrelease also the shifting lever. Don tstart engine longer than 15 second.

7. After starting engine, step by stepreduce the throttle. Avoid running en-gine at high idle.

ENGINE STARTING FAILRepeat starting after 30 seconds. Max. 6starting cycles are allowed (15 secondsstarting and 30 second brake is onecycle). Farther starting engine is allowedafter cooling of starter motor to the am-bient temperature.

Never help to the stopping en-gine by the starter motor. You willavoid starter damage.



45

ENGINE STARTING

A 60a A 61

Disconnect the ground batterypole, shift all levers into neutralposition, including PTO engage-ment, when any manipulationwith starter or its repair. Startingengine by short circuit of starterconnectors is forbidden. The ba-sic rule is that the tractor is star-ted from driver’s seat only.Starter motor connectors are pro-tected by a cover.

∗COOLANT HEATERCoolant heater is assembled into engineblock as an option. Its output is 1000 Wat voltage 220 V of alternating electricalcurrent. Heater is used at ambient tem-perature below -10“C.

ENGINE STARTING WITH COOLANTHEATERThe electrical installation and its protec-tion against electrical shock hazard mustbe done according to the proper regula-tions. Inspect the electrical circuit beforeuse, plug the heater first and the cableinto 220 V electricity after.

After heating unplug the electri-city first and the heater after.

ELECTRICAL SHOCK HAZARD!



46

IMMEDIATELY AFTER STARTING

A 61a A 62

TURBOCHARGED ENGINE (at tractorsZ 7321 and Z 7341 only)Crank the engine for 3 to 5 seconds withthrottle control lever in position C -STOP. You will assure lubrication ofturbocharger and prolongation of its life.

Set engine speed for 800 to 1000RPM after starting and let theengine idle for 3 minutes withoutload.

In this time check for proper lubrication,charging (indicator lights must be °off°)and other functions assuring correct en-gine operation.

Engine idle time without load must bekept especially in winter season.Continue with warming up the enginewhile driving. Warming up the engine bylong idle run or fast increase of speed isdangerous for the engine.Do not exceed engine speed above2000 RPM until the coolant temperaturereaches 45“C.



47

STARTING MOVE

A 63

Depress the clutch pedal, select the roador reduced range speed. Start the en-gine and set the engine speed for 750 to800 RPM. Shift the proper gear speedsuitable for starting move and slightlyincrease the engine speed. Prepare theparking brake for releasing. Release theclutch pedal up to point of the startingmove and simultaneously with enginespeed increasing, continue with smoothclutch releasing. Fully release theparking brake.Start moving smoothly and slowly. Faststarting move can cause the overload oftransmission, increased fuel consump-tion, excessive tire wear and damage ofthe transported load.

Use the 1 st. gear only for starting movewhen driving with heavy trailer going upthe hill and in heavy terrain.Regularly check the operation engineregime, engine speed, lubrication,coolant temperature, air press, batterycharging and fuel level.Regularly check tightening of the trans-ported load if the trailer or other imple-ment is hitched to the tractor.Don t use the differential lock when driv-ing on the dry road or if taking the tu-rning.



48

GEAR SHIFTING

A 64 A 65 A 66

SHIFTING FROM HIGHER TO LOWERGEARDouble clutching is necessary at trans-missions with 2nd, 3rd, 4th and 5th syn-chronized speed when shifting from the2nd to the 1st speed. Double clutching isalso recommended when shifting fromthe other speeds.

DRIVING DOWNHILLDriving downhill without theshifted gear is forbidden. Ifdriving down the long hill, shift solower gear the sharper one thehill is. If possible shift the lowergear before driving downhill.

Remember:The gear you use reliably for drivinguphill is safely suitable for driving down-hill.

Driving down the sharp hill with trailerequipped with air or hydraulic trailer bra-kes the foot operated brakes must beapplied already from beginning of decli-nation!



49

GEAR SHIFTING

A 66a A 67 A 68

DRIVING UPHILLShift in time when shifting fromthe higher speed to the lowerone when going uphill, to avoiddropping engine speed below800 RPM and stopping the engi-ne by overload.

GEAR SHIFTING OF REDUCEDSPEEDSShifting lever of road-reduced range canbe shifted at stopped tractor only. Gearshifting of reduced speeds is the sameas shifting of road speeds. With regardto the low travel speed of the tractor atshifting, the tractor must almost alwaysbe moved from the stop.

TRACTOR STOPPING - PARKINGBRAKEStop gently and slowly the tractor at nor-mal conditions. Shortly before stoppingdepress the clutch pedal and move theshifting lever into neutral. Set the parkingbrake and so protect the tractor againstaccidental movement at each tractorstopping especially when engine runn-ing. Parking brake setting is indicated byindicator lights located on the dash.



50

TRACTOR STOPPING

A 69 A 70

TURBOCHARGED ENGINE STOPPINGAt the tractor with turbocharger the en-gine must cool after work with fullyloaded engine. That s why first reducethe engine speed to 800 - 1000 RPM be-fore stopping engine and let it runwithout load approximately for 5 minutes.Stop the engine by moving the throttlecontrol lever into STOP position. The sa-me is recommended for naturally aspi-rated engines too.

LEAVING TRACTORDo not forget to remove the key from thekey switch and lock the cab at cabtractors before leaving tractor. (The keycan not be removed when at left, I or IIposition).Tractor must be properly assuredagainst accidental move, it must bebraked, with engine °off ° and first gearshifted. Wheels must be locked byblocks when standing tractor on the hill.



51

SERVICE BRAKES - AIR TRAILER BRAKES

A 71 A 72

FOOT OPERATED DISK BRAKESDisc brakes are of wet type, hydraulicallyactuated, double pedal with automaticcompensator integrated in the mainbrake cylinders.

Both brake pedals must belatched together when driving onthe road.Use unlatched pedals for brakingright or left wheel separatelywhen working in terrain and fieldsonly.

∗SINGLE AND DOUBLE HOSE AIRTRAILER BRAKESControl of air trailer brake is derived fromthe foot operated disc brakes and thisworks at latched pedals only. The airbrake operation is synchronized withbraking tractor including the brake effect.Working pressure is set by a pressurevalve (regulator) adjusted to 730 „ 20kPa. If the pressure drops under 550 -40 kPa the priority valve disconnectspneumatic circuits of secondary appli-ances (front PTO control, PTO clutchcontrol, torque multiplier etc.).

Disconnecting of secondary appliancesis not signalized by any indicator lamp.

Pedals of foot operated brakemust be connected and latchedwhen driving tractor withattached trailer.



52

AIR TRAILER BRAKES

A 73 A 74

∗SINGLE AND DOUBLE HOSE AIRBRAKES

It is recommended to connect airbrake couplings to the tractor attractor braked by parking brake.

Connector couplings must be covered bya cap if the trailer is not hitched.

Connector couplings.A - coupling of single hose air brake

systemB - coupling of double hose air brake

system ( red - filling circuit)C - coupling of double hose air brake

system ( yellow - braking circuit)

WARNING DEVICEDropping of air pressure under criticalmargin 450 ± 30 kPa is indicated by redindicator light located on the dashboard.

Tractor with a braked trailer cannot continue in driving when airpressure drops under the criticalmargin and until the pressure isincreased.



53

HYDRAULIC TRAILER BRAKES

A 74a

HYDRAULIC TRAILER BRAKESHydraulic trailer brake control is synchronized with braking the tractor including thebraking effect. Working pressure is activated by oil pressure from hydraulic pump.The hydraulic valve BOSCH (1) is used in circuit of hydraulic pump (disengageablepump). The pressure in the brake coupling must be 12 - 15 MPa at maximal press onthe brake pedal. Trailer brake valve prioritizes the brake function to hydraulic control.

Brake pedals must be connected and secured by latch when driving thetractor with attached trailer.



54

NEW TRACTOR RUNNING IN

A 75 A 76

IN TIME OF RUNNING IN - FIRST 100HOURSWithin the first 100 operation hours:- load the engine normally- avoid the maximal engine load at

operation- avoid the long operation at low idle- frequently inspect the engine oil level

(the increased oil consumption is nor-mal in this time)

- check the hardware connections espe-cially connections of highly stressedparts of the tractor

- remove immediately all found prob-lems. You will avoid subsequently cre-ated damage eventually even traffichazard

FIRST 10 HOURS- do running in at transportation only- retorque front and rear wheel nuts by

prescribed torque

70 HOURS AFTERChange the hydraulic oil filter element.Add the oil into transmission, if neces-sary check the oil level, to be in area offlattened part of oil dipstick.

Change the hydraulic oil filter ele-ment when cold oil - danger ofyour burning, see the chapter!HYDRAULIC OIL FILTRATION!in this manual.

Use the following intervals for exchangeof hydraulic oil cleaning cartridge:1. 70 hours2. 200 hours3. and each 600 hours



55

NEW TRACTOR RUNNING IN

A 77 A 78 A 79

70 HOURS AFTERDrain the hot engine oil and exchangethe full-flow engine oil filter. Fill in theengine with new oil to the prescribedlevel - upper mark of oil dipstick ( inspectafter engine cranking and oil level sta-bilizing).

70 HOURS AFTERRetorque the cylinder head nuts (re-commended torque is 167 to 177 Nm atthe cold engine) and check for valveclearance (0,25 „ 0,05 mm at the coldengine).

100 HOURS AFTERYou can work without any restrictionswith the tractor after running in.The operating engine mode - speed:- recommended operating engine speed

1400 to 2300 RPM.- low idle speed 700 to 650 RPM.



56

NOTE



57

TRANSPORTATION

Be sure that the tractor technicalstatus corresponds to the safetraffic requirements before driv-ing.

Verify hitching of trailer and fixing oftransported load if the attached trailer oragricultural implement. Never leave thetractor in move for attaching trailer your-self. Keep also safety of your assistant.

PageFront hook ................................................................................................................. 58∗ Trailer hitch............................................................................................................. 58∗ Mechanical mouth of trailer hitch ............................................................................ 58∗ Automatic mouth of trailer hitch .............................................................................. 59∗ Swinging drawbar ...................................................................................................59∗ Swinging drawbar ...................................................................................................59∗ Pick up hitch ........................................................................................................... 60Exchange of hook for draw bar ................................................................................. 60∗ Swinging drawbar for trailers .................................................................................. 60Attaching trailer .........................................................................................................61Disattaching trailer ....................................................................................................61∗ Draw bar ................................................................................................................. 61Trailer implementation............................................................................................... 62



58

TRANSPORTATION

A 80 A 81 A 82

FRONT HOOKFront hook is used only for pulling tractorwithout any attached trailer or imple-ments only.Use the pull bar or rope when releasingtractor, never use chains.

∗ TRAILER HITCHTrailer hitch is used for attaching of fourwheel trailers or light two wheel trailers.The trailer hitch is height adjustable in 5positions by 50 mm. Hitch is attached bymeans of bolts or pins with cotter pins.Important: Working with various agricul-tural implement if necessary the trailerhitch needs to be adjusted, tilted oreventually removed together with carrier.

∗ MECHANICAL MOUTH OF TRAILERHITCHHitch pin diameter is 30 mm. Maximalvertical static load is 10 kN.



59

TRANSPORTATION

A 83 A 84 A 85

∗AUTOMATIC MOUTH OF TRAILERHITCHHitch mouth enables automatic couplingtrailer to the tractor. For attaching trailerdo the following - pull out the latch (1)and simultaneously raise the main hitchpin (3) into its upper position by meansof lever (2). Pin automatically slides intotrailer yoke eye after mouth and yokecoupling. Be sure the latch is back inposition after coupling trailer. Maximalallowed vertical static load is 10 kN.

∗ SWINGING DRAWBARSwinging drawbar can be set side to si-de in 5 positions. Drawbar is fixed by thebrace in desired position. The drawbarcan be longitudinally set in two posi tions- measured from the end of PTO shaft(350 or 400 mm). Setting is done afterremoving of quick lock pin under thedifferential housing. Secure again thedrawbar with pin after setting. Drawbarcan be vertically set in 2 positions ( byturning the drawbar round its axis and byassembly of drawbar clevis into adifferent position).

∗ SWINGING DRAWBARThe needed free space at work withcardan shaft is ensured only if the draw-bar clevis is in its lowest position



60

TRANSPORTATION

A 86 A 86a A 86b

∗ PICK UP HITCHPick up hitch is intended for coupling oftwo wheel trailers with yoke corres-ponding to ISO 5692 (the internal yokeeye diameter is 50 mm and eye height is30 mm). Pick up hitch hook is hydrau-lically raised and lowered by means oflength adjustable telescopic links. Ma-ximal vertical static load is 17 kN. Pickup hitch is capable for pulling of maximaltraction force.

EXCHANGE OF HOOK FOR DRAWBARThis hitch device can be equipped withswinging draw bar that is in the oppositeside of hitch hook.Swinging draw bar can have threeworking positions. Change of hitch hookfor swinging draw bar is carried out bylowering of hitch hook carrier into posi-tion suitable for removing of pins (a).Afterwards the hitch hook is removedfrom the carrier and inserted into suchposition that the swinging draw barclevis is in front of carrier.

∗SWINGING DRAWBAR FORTRAILERSMaximal vertical static load is 12 kN.Swinging draw bar is capable for pullingof maximal traction force.



61

TRANSPORTATION

A 87 A 87a A 88

ATTACHING TRAILERTrailer is attached by means of thehydraulic inner circuit lever (A) with se-lected position regulation. The hitchhook together with trailer yoke eye ishydraulically raised into position wherethe latches lock down over hitch carrierpins. Hydraulic arms must be subse-quently lowered so that the hook latchessat into carrier pins - telescopic hitchesmust not be stretched.

DISATTACHING TRAILERTrailer is disattached after slight raisingof hitch by internal circuit lever. Move thepick up hitch control lever forward withselected position control. The lever is lo-cated on the left hand side of at driver sseat.

∗DRAW BARDraw bar is height adjustable by thehydraulic lifting system within its holelifting range. Only agricultural imple-ments loading permanently the drawbardownwards can be attached into thedrawbar. Maximal vertical static load is 5kN (stopped tractor).

Disassemble the trailer hitch withcarrier when working with thedraw bar.



62

TRANSPORTATION

A 89

TRAILER IMPLEMENTATIONTractor must be implemented only withsuitable tractor trailer because tractorservice brakes and air brakes of trailermust match together. Static rear axleload must not exceed the max. allowedaxle load when implemented with twowheel trailer.

Type Allowed verticalstatic load

Type Allowed verticalstatic load

10 kN 8 kN

8 kN 18 kN

6 kN 12 kN

12 kN 5 kN

Maximal weight of implemented braked trailer must not exceed the weight valuementioned on tractor warning decal and value mentioned in the vehicle technicallicense. The maximal vehicle set speed is limited by the max. allowed speed of theslowest vehicle.



63

TRANSPORTATIONSpeed Tire Gz dov 2WD tractor 4WD tractor(km/h) (kg) F (kN) Gp (%) v (km/h) F (kN) Gp (kN)

8, 20, 308, 20, 308, 20, 308, 20, 308, 20, 30

16,9-2816,9-3016,9-3418,4-3018,4-30

40004000400040004000

1818171616

1919202020

1515151515

1818171717

2727282828

4040404040

16,9-2816,9-3016,9-3418,4-3018,4-34

34003400340034003400

-----

-----

-----

1312121212

3232323030

8203040

13,6-3613,6-3613,6-3613,6-36

4000387032302900

181711-

192025-

-15--

1816118,5

28293437

- Additional front ballast weights- under frame- in front of mask

155-

155210

Gz dov - maximal allowed load at rear axleF - allowed vertical static load of hitchGp - front axle load (regarding total tractor weight)v - restricted maximal speed (regarding steeringability)

The table is valid for tractor with pick up hitch only.



64

NOTE



65

AGRICULTURAL MACHINE PTO DRIVE

Check the speed compatibility ofboth, tractor PTO and machinedriven shaft before attachingPTO driven machine (540 or1000 RPM). Different PTOspeeds may cause serious da-mage and accidents .

PageSafety regulations when working with PTO ............................................................... 66Pto independent and ground speed shifting .............................................................. 66∗ PTO shaft - exchangeable PTO shaft ends ............................................................ 67PTO clutch hand control lever ................................................................................... 67PTO clutch mechanical control ................................................................................. 68Adjusting process ......................................................................................................68∗ Pneumatic control with mechanical linkage ............................................................ 69Adjusting process for pneumatic control with mechanical linkage ............................ 69Front PTO clutch control valve lever .........................................................................71Front PTO shaft.........................................................................................................71



66


A 90 A 91

SAFETY REGULATIONS WHENWORKING WITH PTO

Take care for proper assembly ofall covers and guards. Always re-assemble the PTO shaft guardafter finishing of work. Connectand disconnect the cardan shaftonly after definitive stopping ofPTO shaft.Disconnect the PTO drive by thehand lever - upper position (fig. A93) before starting the tractorwith attached machine.

Unauthorized persons must not staybetween tractor and attached machine.

WARNING FOR WORK WITH PTOIt is recommended to shift the reversecontrol lever into forward position andmain shifting lever into neutral whenworking with PTO at stopped tractorequipped with reversor. It is recommend-ed not to work with engaged fourth andfifth road speed gear when the reversorshifting lever is in reverse position R forbackward drive at tractor equipped withsuch reversor.

PTO INDEPENDENT AND GROUNDSPEED SHIFTINGa - PTO ground speed ( PTO is driven

by transmission - PTO ground speeddepends upon the shifted gear. )

N - Neutral.b - Independent PTO speed ( indepen-

dent upon tractor travel speed),( 540 RPM- standard, 540 and 1000RPM- option)

PTO speed is shifted at stopped engine.PTO shifting lever handle is black.



67


A 92 A 93

∗ PTO SHAFT - EXCHANGEABLE PTOSHAFT ENDSThe PTO shaft end for 540 RPM has sixsplines.The PTO shaft end for 1000 RPM hastwenty-six splines.The six spline shaft is assembled in thefactory. PTO guard, plug and the PTOend fixing screw must be disassembledwhen exchanging the PTO shaft end.Lever grip for shifting of 540 and 1000RPM is yellow.

PTO CLUTCH HAND CONTROL LE-VERUpper position - clutch is disengagedLower position - clutch is engagedThe application of lever into disengageposition is indicated with indicator lightlocated on the dashboard.

Connecting and disconnecting ofcardan shaft to and from agrega-ted machine must be alwayscarried out with shifting lever ofdependent and independent PTOspeed into neutral position (pictu-re A 91 - position N). In addition,

it is forbiden to carry out any repairs orcleaning on agregated machines drivenby rear PTO if shifting lever of depen-dent and independent PTO speed is notinto neutral position.



68


A 93a A 94

PTO CLUTCH MECHANICAL CON-TROLMechanical control actuates the PTOclutch levers through the thrust bearing.Disengaging mechanism consists of:1. Lever.2. Push-pull cable.3. Adjusting nut.4. Adjusting screw5. Pin6. Push-pull cable bolt7. Double-arm lever.8. Pull link.9. Shaft with lever.10. Switch11. Bearing12. Disengage levers of travel clutch

ADJUSTING PROCESS1. Remove the plastic cover of PTO

clutch hand control lever2. Loosen the adjusting screw (4). You

will loosen the nut (3) by this way.3. Adjust the play between bearing (11)

and clutch levers (12) by means ofadjusting nut (3) so that, to be 4 mmplay between bearing (11) and clutchlevers (12), the play must not belower than 2,5 mm. Hold the push-pullcable screw (6) in adjusting nut (3) toavoid its rotation together with ad-justing nut (3) and so to avoid plyapart of push-pull cable wire (2).

4. Secure the adjusting nut (3) by ad-justing screw (4). Pay attention thatthe adjusting nut (3) bears on uppersurface of pin (5).

5. Indicator light must be ón´ after rais-ing lever (1) into position in that theclutch is disengaged.

6. Control force on the lever (1) ismaximally 200 N when correctly ad-justed travel clutch disengage levers.travel clutch disengage levers mustbe adjusted if the force is excessivelyincreased ( approximately twice).



69


A 94a A 95

∗ PNEUMATIC CONTROL WITH ME-CHANICAL LINKAGEPTO clutch is disengaged by raising oflever handle. Lever is automaticallylatched in the upper position.

1. Lever2. Push-pull cable3. Adjusting nut4. Adjusting screw5. Pin6. Push-pull cable bolt7. Two arm lever8. Pin9. Shaft with lever10. Switch11. Bearing12. Travel clutch disengage levers13. Adjusting link14. Link15. Pneumatic cylinder16. Electromagnetic valve.

ADJUSTING PROCESS FOR PNEUMA-TIC CONTROL WITH MECHANICALLINKAGE1. Remove the plastic cover of PTO

clutch hand control lever.2. Adjust the play between bearing (11)

and clutch levers (12). Do the ad-justing by means of link (13) that waythe play between bearing (11) andclutch levers (12) is 4 mm, this mustnot be lower than 2,5 mm.

3. Pneumatic cylinder piston (15) mustbe in its initial stop position whenadjusting.



70

AGRICULTURAL MACHINE PTO DRIVE4. Loosen the adjusting screw (4) and

nut (3). Set the play 0,1+0,2 mmbetween pin (8) and opening of link(14) by adjusting nut (3). Hold thepush-pull cable bolt 6) in adjusting nut(3) to avoid its turning together withadjusting nut (3) and ply apart ofpush-pull cable wire (2).

5. Secure the adjusting nut (3) by ad-justing screw (4) after adjusting. Keepattention that the bearing surface ofnut (3) touches the upper surface ofpin (5).

6. Inspect the play between bearing (11)and clutch levers (12), eventually ad-just by link (13).

7. After adjusting raise the PTO controlhand lever (1) (with disconnected ele-ctrical supply for electromagnetic val-ve (16)) by force that is necessary forPTO declutching. Check adjustingaccording to points 4.,5. and 6. afterreleasing the lever (1).

8. Indicator light on the dashboard mustbe ón´ after raising PTO control handlever (1) into declutching position.

9. The force on PTO control hand lever(1) is max. 120 N with connectedelectromagnetic valve switch (16) -ón´ and 200 N with disconnectedelectromagnetic valve switch atcorrectly adjusted travel clutch disen-gage levers (12). If the force is ex-cessively increased (twice) the travel

clutch engage levers must be againadjusted.



71


A 96 A 97

FRONT PTO CLUTCH CONTROL VAL-VE LEVERFront PTO clutch control valve lever.a - engaged PTOb - disengaged (STOP) PTOClutch is engaged when the air pressreaches minimally 500 kPa ( measuredon pressure gauge). The valve ensuresautomatic PTO clutch disengaging whenthe air press drops under 410 “ 60 kPa.

There is a time gap betweencontrol valve lever move and ma-chine starting move.

Warning!The condensed water from the space ofclutch sealing cuff must be removedbefore each winter time. This is done byseveral times clutch engaging anddisengaging after removing the plug (A).The pressure air blows the impuritiesand condensed water from the space ofclutch sealing cuff. Do not forget toreassemble the plug back.

FRONT PTO SHAFTFront PTOend

21 splines, dia. ∅ 35mm, standardized

Speed 1000 RPM at 1820engine RPM

Turningdirection see pictureMax. trans-mitted power 30 kW



72

NOTE



73

HYDRAULIC SYSTEM

The hydraulic system is intended forlifting and lowering of agricultural ma-chines and implements attached in therear three point hitch.

PageHydraulic system (A) .................................................................................................74Hydraulic oil filtration .................................................................................................74Hydraulic inner circuit ................................................................................................ 75Response rate control lever (3) ................................................................................. 75Inner circuit control lever (1) ...................................................................................... 75Control position mode selection lever .......................................................................76Outer circuit control lever .......................................................................................... 77Hydraulic outer circuit................................................................................................ 78Hydraulic outer circuit outlets -rear ........................................................................... 78Max. oil capacity supplied from outer circuit ............................................................. 78Single-acting hydraulic cylinder control .....................................................................79Double-acting hydraulic cylinder control ...................................................................79∗ Selective control valve............................................................................................ 80∗ Front outer circuit outlets ........................................................................................ 80Connection of machines and implement to hydraulic outer circuit ............................ 81Rear three point hitch ................................................................................................ 82Rear three point hitch attaching ................................................................................ 83∗ Lower link stabilizers .............................................................................................. 84∗ Telescopic lower draft links .................................................................................... 84Top link...................................................................................................................... 85Top link...................................................................................................................... 85Selection of top link position ..................................................................................... 85∗ Front three point hitch ............................................................................................ 86Front three point hitch control ................................................................................... 86Regulation of lowering and hydraulic lock of front three point hitch .......................... 86Reduction valve setting ............................................................................................. 87Carried implement attaching ..................................................................................... 87Warning..................................................................................................................... 87



74

HYDRAULIC SYSTEM

A 98 A 99

HYDRAULIC SYSTEM (A)Hydraulic system consists of inner andouter circuit. The oil from transmissionand differential case is used for hydraulicsystem. The gear type pump (B), drivenby engine timing gears, delivers thepressure oil into system. The non-disengageable pump is located on theleft side of engine. The pump capacity is40 l.min-1 (* 50 l.min-1 as an option) atnominal engine speed. Max. pressure 20MPa is maintained by pressure relievevalve in the circuit ( set to 18+2 MPa).

HYDRAULIC OIL FILTRATIONHydraulic pump sucks the oil through thesuction cleaner located on the left sideof transmission. You can change the oilcleaner without transmission oil draining.The oil drains from the cleaner cartridgeat cleaner exchange. A clean vessel ofapproximately 10 l capacity must beused. Prepare the new cartridge advan-ce. The drained oil can be again used intransmission (in case the cartridge is ex-changed outside of recommended timeof oil or cleaner exchange).

Exchange the cleaner cartridgewhen cool oil - danger of yourburning.



75

HYDRAULIC SYSTEM

A 100 A 101

HYDRAULIC INNER CIRCUITHydraulic inner circuit is controlled bythe inner circuit control lever (1), controlposition mode selection lever (2) and re-sponse rate control lever (3). Adjustablestop (4) maintains the inner circuitcontrol lever in the selected position.

RESPONSE RATE CONTROL LEVER(3)The oil flow into inner circuit is the big-gest one if the lever is in position to-wards driver s seat. Hydraulic responserate is reduced by restriction of the oilflow at the draft or mixed control, forexample when ploughing in various soilconditions.

INNER CIRCUIT CONTROL LEVER (1)Inner circuit control lever controls:- Lifting and lowering implements.- Height adjustment of three point hitch

with implements at selected positioncontrol.

- Pulling force adjustment (resistance ofimplement at draft or mixed control)

- Setting of so called floating position atwork with implement equipped withsupporting wheel.



76

HYDRAULIC SYSTEM

A 102

CONTROL POSITION MODE SELECTION LEVERLever has three positions marked by P, M, D:P - Position control - Implement attached in the three point hitch is automatically

maintained in the constant position with regard to the tractor.M - Mix control - is a combination of position and draft control. This is suitable

especially for ploughing at soils with various resistance.D - Draft control - Implement attached in the three point hitch is automatically

readjusted depending upon the soil resistance change.All position controls enable also work with implement having the supporting wheel inso called floating (free) position.

The control position mode se-lection lever must be moved intoP position when transporting im-plement.



77

HYDRAULIC SYSTEM

A 103

OUTER CIRCUIT CONTROL LEVERThere are three positions on the label:a - Pressure is in quick-coupler No "1", quick-coupler No "2" is connected with re-

turn line. Lever is moved into its rear margin position. The lever must be kept inthis position otherwise is automatically turned into neutral position "b".

b - Neutral position (locked). Outlets of quick-couplers No "1" and "2" are closedand the oil is blocked in attached hydraulic implement. The lever is automaticallykept by spring in this position.

c - Floating (free) position. Both outlets of quick-couplers No "1" and "2" areconnected with return line and the oil can freely flow in both directions. Lever islocked by valve ball lock in this position.

d - Pressure in quick-coupler No "2", quick-coupler No "1" is connected with returnline. Lever is moved into its forward margin position. The lever must be kept inthis position otherwise is automatically turned into floating position "c".



78

HYDRAULIC SYSTEM

A 104

HYDRAULIC OUTER CIRCUITHydraulic outer circuit delivers the pres-sure oil into hydraulic implementsconnected to hydraulic outer outletsequipped with quick-couplers. Quick-coupler sockets have inner diameter12,5 mm and correspond to the ISOinternational recommendation.

A 105

HYDRAULIC OUTER CIRCUIT OUT-LETS -REARHydraulic outer circuit outlets areequipped with three quick-couplers lo-cated on quick-coupler panel. Quick-couplers No "1" and No "2" are alternati-vely pressurized. The third quick-couplerNo "0" is connected directly with diffe-rential case space and is intended forturning of the oil from hydraulic imple-ments (for example from rotary hydro-motors etc.).Attached implements using the oil fromhydraulic outer circuit must be filled withthe same kind of oil as recommended fortractor transmission.

MAX. OIL CAPACITY SUPPLIEDFROM OUTER CIRCUITMax. 20 litters of oil can be temporarilysupplied from outer outlets for work ofattached implements. At bigger supply ofoil the hydraulic pump might draw in theair and the pump could be damaged.In case the oil level dropped after dis-connecting implement caused by perma-nent supply of oil from tractor into hydra-ulic circuit of implement it s necessary toadd the missing quantity of oil.Transmission and differential case oil ca-pacity - see table “QUANTITY OFLIQUIDS°. Quantity of oil is bigger bytwo litters at 4WD tractors.



79

HYDRAULIC SYSTEM

A 106 A 107

SINGLE-ACTING HYDRAULIC CYLIN-DER CONTROLSingle-acting hydraulic cylinder is everconnected with quick-coupler No "1":- lifting, - lever is in the rear margin po-

sition (it must be kept by hand in thisposition)

- neutral, - lever is in the middle positionand is kept by spring in this position

- lowering, - lever is in the middle,between neutral and front margin posi-tion and is automatically locked ( socalled floating position)

DOUBLE-ACTING HYDRAULIC CYLIN-DER CONTROLDouble-acting hydraulic cylinder isconnected with quick-coupler No "1" formoving piston rod out of cylinder andwith quick-coupler No "2" for sliding in:- lifting, lever is in the rear margin po-

sition “a° ( it must be kept by hand inthis position)

- neutral, lever is in the middle position“b° and is kept by spring in this posi-tion

- lowering, lever is in the front marginposition “d°

- floating (free) position “c°, lever is inthe middle, between neutral and lowermargin position and is automaticallylocked - both quick-couplers areconnected with return line.

Control lever must be moved asquickly as possible over position’c" (floating position) at work withouter circuit double-acting hydra-ulic cylinder because both sidesof cylinder are connected withthe return line and so the un-controlled movement of pistonrod can start.



80

HYDRAULIC SYSTEM

A 108

∗SELECTIVE CONTROL VALVE2nd & 3rd selective control valve (SCV)consists of two sections. Each sectionhas two pressure outlets (marked by°3,4,5,6°). Those are alternatively noc-nected with:a - quick-couplers (°3,4,5,6°), located

on the rear panelb - front three point hitch circuit for

lifting and lowering (quick-couplers°5,6°)

c - front quick-couplers located on frontpanel (quick-couplers °3,4°)

Quick-couplers °3,4° are located on therear panel even for alternative No °2 and3°.Both sections are equipped with floatingposition (labeled F), sections with outlets°5, 6° are moreover equipped with lock in

both pressure positions. The spool valvein this section is automatically turnedinto neutral position when the pressurereaches the relieve valve pressure.SCV control levers are located on theright fender in the cab nearby hydrauliccontrol levers.

∗FRONT OUTER CIRCUIT OUTLETSFront outer outlets are equipped with thethree quick-couplers located on panel,quick-couplers °3,4° are alternativelypressurised. The third quick-coupler °0°is directly connected with the differentialhousing space and is intended for the oilcoming back from outer hydraulicimplements.



81

HYDRAULIC SYSTEM

A 109

CONNECTION OF MACHINES ANDIMPLEMENT TO HYDRAULIC OUTERCIRCUITROTARY HYDROMOTOR OR SCVOil inlet line into these implements(marked P) is connected with quick-coupler "1", oil return line is connectedwith quick-coupler "0". If the reversiblehydromotor is used the oil lines areconnected with quick-couplers "1" and"2".



82

REAR THREE POINT HITCHREAR THREE POINT HITCHRear three point hitch is intended for attaching of carried or semi-carried agriculturalmachines and implements with hitch points of category I and II according to ISOregulation. Categories are differed on the base of hitch axis length (implementattachment points distance). This is the distance of lower link joint ball centers atattached implement. The link axis length is 728 mm for category I and 870 mm forcategory II. The inner opening of lower link ball is 28 mm equal for both categoriesaccording to ISO regulation. The inner opening of top link ball is 25 mm.The three point hitch consists of:1. Top link.2. Left lift link.3. Right adjustable lift link.4. Lower draft link stabilizers.5. Lower draft links.The extended lower link supports are assembled as the standard at tractors Z 6321to Z 7341, those enable fixing of lower links and their stabilizers. The narrow lowerlink supports - category I as the standard or ∗ extended lower link supports areassembled at tractors Z 3321 to Z 5341.

Non authorized persons who are not charged to handle the attached tractorimplements must not be left between tractor and attached implement. Do notpark the tractor with lifted implement.

A 110



83

REAR THREE POINT HITCHREAR THREE POINT HITCH ATTACHINGThe left lifting link is intended for course vertical adjustment of lower link position andis adjustable after disconnecting of its upper end from hydraulic lifting arm pin. Theright lift link (3) serves for fine adjustment of lower link position by means of gearboxcontrolled from driver s cab. Lower link ends can be mutually vertically adjustedwithin range 200 mm. Floating (free) position of implement and swinging round theaxis is enabled after sliding of left link pin into the groove. In this case the lower draftlink ends can be freely vertically moved by 100 mm one each other. Lower linkstabilizers (5) serve for limiting of side to side swing of lower links within the wholethree point hitch lift. The side swing can be max. 125 mm to each side measured onthe lower link balls after adjusting to maximal stabilizer length.

Lower draft links have to be connected by springs (6) and the top link (1)hooked in the spring holder when transportation without implement. Lowerlink stabilizers (5) need to be shortened at transportation to avoid theundesired side swing of implement.

A 111



84

REAR THREE POINT HITCH

A 112 A 112a A 113

∗ LOWER LINK STABILIZERSLower link stabilizers enable the sideswing of lower links approximately 125mm to each side measured on lowerballs when working with implement cate-gory I and 90 mm with implement cate-gory II.Lower link stabilizers are automaticallyset by attaching implement.

Both stabilizers must be alwaysassembled on the tractor.

The side swing is limited by locking ofstabilizers with pin 1.

The opening nearby the groove is in-tended for category I and the other onefor category II. The rear wheel treadmust be readjusted when working withimplement of category II that needs theside swing (for example plough). Therear tread 1500 mm (standard setting)must be set for tires 16,9-30, 16,9-34,18,4-34 and at link axis 870 mm (imple-ment attachment points distance

∗TELESCOPIC LOWER DRAFT LINKSTelescopic lower draft links make imple-ment attaching easy. Telescopic draftlink ends (9) are loosened after pushingof latches (8) down. Slipped out draftlink ends are fitted onto both implementpins and are locked by quick lock pins.Draft link ends are slid into draft linksafter driving reverse and are automa-tically locked in working position.



85

REAR THREE POINT HITCH

A 114 A 115 A 116

TOP LINKTop link (1) is length adjustable withinrange 180 mm. This is attached to thetractor into one from four openings ofbracket that transfers impulses (senses)from attached implement to the torsionshaft located in hydraulic rockshaft.

Top link must be moved intoopening !d! at implement trans-portation to avoid overload ofhydraulic kinematics system orattached implement falling down.

TOP LINKPay attention to keep the samelength of joints from the link tubeat prolongation of the top link.

SELECTION OF TOP LINK POSITIONAttachment of top link into one fromopenings "a"-"d" influences the following:- Sensitivity of hydraulic response cont-

rol position selection lever in position"D" or " M"). The biggest responsesensitivity is with top link in theopening "a".

- Implement tilting when in lifted positionwith regard to the implement framehigh (460 mm to 610 mm). Thesmallest tilting is with top link in theopening "a".



86

∗FRONT THREE POINT HITCH

A 117 A 118 A 119

∗FRONT THREE POINT HITCHFront three point hitch is intended forattaching of frontal carried agriculturalmachines and implements of category IIaccording to ISO standard.

Within the implement trans-portation the front three pointhitch must be always hydrauli-cally locked in lifted position bythe ball valve located on the lefthand side of tractor above thefront axle.

This hydraulic lock is also recommendedin case if no implement is attached intothe front three point hitch.

FRONT THREE POINT HITCH CONT-ROLThree point hitch is equipped with twosingle or double - acting cylinders thatare controlled by oil from the 2nd and 3rd selective control valve. Lifting andlowering is controlled by SCV lever (1):- lifting is done by moving the lever into

position 6- lowering is done by moving the lever

into position 5- position F serves for floating position.- position N serves for locking of hitch

REGULATION OF LOWERING ANDHYDRAULIC LOCK OF FRONT THREEPOINT HITCHLowering speed of hitch with implementcan be controlled by return reductionvalve. Hydraulic lock of front three pointhitch in any position is carried out bymeans of the ball valve and by turningthe lever from position A by 90„ (per-pendicularly to valve axis) to B position.



87

∗FRONT THREE POINT HITCH

A 120 A 121 A 122

REDUCTION VALVE SETTINGReduction valve (3) setting is re-commended before starting work with at-tached implement in front three pointhitch that way the time needed for im-plement lowering from the upper positionis 1 to 1,5 second. Lowering speed is in-creased by turning the valve body intoleft (in arrow direction).

CARRIED IMPLEMENT ATTACHINGThe implement is attached into the frontthree point hitch forks and is locked bypins. Fixed and floating position is pro-vided by pins:- fixed position of attached implement is

provided by assembly of pins into po-sition 1

- floating position of attached implementis provided by assembly of pins intoposition 2

WARNINGThe highest allowed speed of tractor withagricultural machine attached into thefront three point hitch is 15 kmph.We recommend removing of lower liftingarms (A) from supports at tractor equip-ped with front three point hitch if notused for attaching implement. Frontlower links are disassembled after re-moving of safety pins and hitch pins (B).



88

NOTE



89

FRONT AND REAR AXLEPage

Front wheel tread setting at non-driven axle ............................................................. 91Adjustment of front axle knees .................................................................................. 91Front driving axle tread setting .................................................................................. 92Front driving axle fenders.......................................................................................... 92Setting of stops .........................................................................................................93Front wheel toe-in .....................................................................................................94The tractors are standartly equipped with hydrostatic steering .................................95Rear wheel tread setting ........................................................................................... 96Rear wheel tread setting ........................................................................................... 96



90

FRONT AXLE KNEESTractor Type Z 3321 Z 3321, Z 4321 Z 3321, Z 4321

Z 5321, Z 6321Z 4321, Z 5321Z 6321, Z 7321

Front tyre 6,00-16 6,50-16 ∗7,50-16 7,50-20Adjustable tread 1450, 1525, 1825 1450, 1525, 1825 1425, 1500, 1800 1425, 1500, 1800Tractor knee load capacityat tractor speed

20 km.h-1

8 km.h-11510 kg2240 kg

1660 kg2460 kg

2010 kg2980 kg

2360 kg3000 kg

Complete summary of treads and maximal allowed loads caused by additional devices or attached machines for front axles ofparticular tractor models is mentioned in chapter ´MAIN TECHNICAL PARAMETERS“.



91

FRONT WHEEL TREAD SETTING

A 123

FRONT WHEEL TREAD SETTING ATNON-DRIVEN AXLEFront wheel tread setting is provided bysliding out and in of front axle knees (A)at lifted axle and with correspondingsetting of adjusting elements.

ADJUSTMENT OF FRONT AXLE KNEES- Thread out axle knee nuts (1) and remove the screws.- Loosen the lock nuts on ball joints (2) on ball joint sockets (3) and remove

both connecting rods (4).- Slide out or in the knees to the required tread, reassemble screws. Tighten

axle knee nuts by torque 177-196 Nm.- First of all fix the tractor against possible movement, lift the axle by lifting jack and

support it.- Thread the correct connecting rods (4) with marking of wheel tread (delivered as

an option) adjust the toe-in and secure by lock nuts (2,3).- Tighten nuts by torque 122 - 136 Nm.



92

FRONT DRIVING AXLE TREAD SETTING

A 124 A 125

FRONT DRIVING AXLE TREADSETTINGThe following treads can be set for frontdriving axle at used tires 9,5-24, 11,2-24and 12,4-24:1500, 1594, 1650, 1745 and 1800 mm.The following treads can be set for frontdriving axle at used tire 13,6-24:1583, 1660, 1734 and 1810 mmTighten front wheel nuts by torque 270 -300 Nm.

FRONT DRIVING AXLE FENDERSFront fenders are located on adjustableholders that can be side ( moving ofscrews “a“ into another openings) and/orheight (moving of screws “b“ into anotheropenings) adjustable according to thedesired wheel treads and used wheeltire size.



93

FRONT DRIVING AXLE STOP SETTING AT Z 3341, Z 4341, Z 5341, Z 6341, Z 7341

A 126

SETTING OF STOPSSet stops at each change of front wheeltread according to the mentioned tablesafter loosening of nut "2" and treadingout or in of screw "1" to value “A“.

tractor w/fenderstire 9,5-24 11,2-24 11,2-24 12,4-24 13,6R24

treads A (mm) A (mm) A (mm) A (mm) A (mm)150015831594165016601734174518001810

33-

2922--

19--

44--------

--

4337--

2925-

--

4337--

3026-

-43--

3733--

26tractor w/o fenders

tire 9,5-24 11,2-24 11,2-24 12,4-24 13,6R24treads A (mm) A (mm) A (mm) A (mm) A (mm)150015831594165016601734174518001810

29-

2419--

1313-

∗36-

∗30∗25

--

∗21∗17

-

--

2622--

1814-

--

3127--

2117-

-36--

3025--

21

∗ - for Z 3341 only



94

FRONT WHEEL TOE-IN

A 127

FRONT WHEEL TOE-INFront wheel toe-in is measured on therim and is 2 to 6 mm at tractor with non -driven axle.Front wheel toe-in is 0 to 4 mm at tractorwith front driving axle.Check and eventually adjust the play offront wheel bearings before toe-inchecking.

A 128

Front wheel toe-in is measured on rims. The toe-in "S" is calculated as difference ofmeasured values: S = B - A



95

FRONT WHEEL TOE-IN

A 129

THE TRACTORS ARE STANDARTLYEQUIPPED WITH HYDROSTATICSTEERINGThe process of setting is valid forboth axles:- Measure the distance between rims in

front in the horizontal wheel axis plain.Mark the measuring points.

- Drive the tractor so that the markedpoints will be in rear horizontal position(turned by 180°) and again measurethe distance between marked points

- Tighten the nuts of ball joint socket bytorque 122 - 136 Nm. The upper surfa-ces of joint sockets must be parallel.

Tractors with front non-driven axle:- Slide out the steering cylinder piston

rod up to value 145,5 „ 1.- Loosen nuts (2,3) and adjust the toe-in

to the required value by turning of rod(4) (measure on the rim side)

Tractors with front driving axle:- Turn wheels parallel with longitudinal

tractor axis.- Loosen the ball joint socket nuts of

steering connecting rod at hydrauliccylinder.

- Adjust the prescribed toe-in by turningof ball joint pin. Adjust both joints tokeep the same steering angle on bothsides (measure on rim side).

If you use tractor in the road traffic(dominant using) we recommend to turnthe front tires on the rims. You prolongthe durability of tires.



96

REAR WHEEL TREAD

A 130 A 131

REAR WHEEL TREAD SETTINGOn the base of rear tire width, the rearwheel tread can be set within thefollowing range by 75 mm:1350 to 1800 mm - Z 3321, Z 3341, Z4321, Z 4341, Z 5321, Z 5341, Z 6321, Z6341, Z 7321, Z 7341Standard rear wheel tread 1500 mm isset at the factory on models Z 3321 to Z7341.Rear wheel tread 1350 can be minimallyset for following tires (12,4-28; 12,4-32;13,6-36).

REAR WHEEL TREAD SETTINGThe rear wheel treads are adjustable bystep 75 mm and are set by changing ofrim and disc position. Tread setting isdone with lifted tractor rear part to en-able rear wheel free turning.

Don’t forget to block front wheelsagainst movement before lifting.

Tighten all screws connecting the discand rim by torque 225 - 250 Nm andnuts of studs connecting the disc andshaft by torque 400 - 470 Nm after treadsetting.



97

NOTE



98

NOTE



99

BALLAST WEIGHTS

Ballast weights are necessary for axleload increase, for ensuring of tractorsteeringability or stability (keep manu-facturer’s instructions when working withfront loader).

Page∗ Under frame front ballast weights (A) ...................................................................100∗ Under frame front ballast weights (B) ...................................................................100∗ Ballast weights for 4wd tractors (A) ......................................................................100∗ Front ballast weights ............................................................................................ 100Rear wheel ballast weights ..................................................................................... 100Valve for filling of tires with liquid ............................................................................ 101Blocking front wheels .............................................................................................. 101Process for filling water into tires (picture on the following page) ........................... 101Process for draining liquid from tires .......................................................................102Max. liquid weight (kg) depending upon tire size .................................................... 103Antifreeze liquid for filling of tires ............................................................................ 103



100

∗BALLAST WEIGHTS

A 132 A 133 A 134

∗ UNDER FRAME FRONT BALLASTWEIGHTS (A)ballast weight frame (1) - 20 kgballast weights (2) - 135 kg

∗ UNDER FRAME FRONT BALLASTWEIGHTS (B)ballast weight frame (3) - 20 kgballast weights (4) - 100 kg

∗ BALLAST WEIGHTS FOR 4WDTRACTORS (A)ballast weight frame (1) - 20 kgballast weights (2) - 100 kg

∗ FRONT BALLAST WEIGHTSa - ballast weight frame (1) - 20 kgb - ballast weights in front of mask (2) -

210 kgc - front three point hitch weights -

holder + 12 pcs of weights - 260 kgBallast weight c) with holder is attachedin the front three point hitch lower links.This weight is intended for assuring oflongitudinal stability when implementa-tion with heavier implements attached inthe rear three point hitch.

REAR WHEEL BALLAST WEIGHTSI2 + 4 pcs - 150 kg for wheel tread 1350and 1500 mmII2 + 8 pcs - 270 kg for wheel tread 1575to 1800 mmIII2 + 8 pcs - 270 kg for wheel tread 1500to 1800 mmIV2 + 2 pcs - 90 kg for wheel tread 1350 to1800 mm



101

FILLING LIQUID INTO TIRES

A 135

VALVE FOR FILLING OF TIRES WITHLIQUIDAll rear wheel tubes are equipped withvalve enabling filling of tires with liquidwhen the adapter is used.

Filling of front tires and rear tiresdouble assembly with liquid is notallowed.

A 136

BLOCKING FRONT WHEELSDon’t forget to block front tiresagainst movement before liftingof rear wheels.

PROCESS FOR FILLING WATER INTOTIRES (picture on the following page)- Unload tire by lifting tractor and turn it

with valve upwards (A).- Deflate the tube and remove the valve

insert.- Thread the adapter for filling of tires

with water and slide the water hoseover adapter.

Fill the tube with prescribed quantity ofliquid. The tank (B) or pressure water( C)can be used for filling of tire. Removethe water hose and the adapter for fillingof tire with water.- Thread the valve insert and inflate the

tire into prescribed inflation pressure(D).

- Thread the valve dust cap after infla-tion.

- Fill the second tire by the same way.



102

FILLING LIQUID INTO TIRES

A 137

A 138

PROCESS FOR DRAINING LIQUID FROM TIRES- Unload tire by lifting tractor and turn it with valve upwards (A).- Deflate the tube and remove the valve insert. Turn wheel with valve downwards.ATTENTION! Underpressure can be created in tire when draining liquid. That ’s whyturn sometimes the wheel with the valve upwards (B).- Remove the rest of liquid from tire by means of pressure air after assembly of

adapter for filling tires with water (C). Blow out the liquid so long until liquid runsfrom adapter extension tube.

- Remove the adapter for filing of tires with water. Thread the valve insert back andinflate the tire into prescribed inflation pressure(D).

- Thread the valve dust cap after inflation.- Remove liquid from the second tire by the same way.



103

FILLING LIQUID INTO TIRESMAX. LIQUID WEIGHT (KG) DEPENDING UPON TIRE SIZETIRE SIZE 12,4-28 12,4-32 12,4-36 13,6-36 14,9-28 16,9-28 16,9-30 16,9-34 18,4-30 18,4-34WEIGHT (kg) 125 140 160 180 190 215 240 250 337 345

ANTIFREEZE LIQUID FOR FILLING OF TIRESWater for

preparation ofliquid (litters)

Calcium chlorideCaCl2 (kg)

Hydrated lime(kg)

Liquid densityat 20oC

Solidity point“C (approx.)

Total volume(litters)

Additional weight(kg)

454545

11,813,915,4

0,210,230,25

1,131,181,21

-18-25-30

505050

575961

Liquid preparation:1. Dry calcium chloride CaCl2 is added into water, never the other way!2. Liquid is not dangerous, but it must be handled carefully. Wash the spilt liquid drops with clean water.3. Let the liquid cool down before filling. Keep the prescribed quantity of hydrated lime.4. Liquid must not get into contact with metal parts and with electrical installation. Tube valve is liquid resistant.5. Antifreeze liquid prepared in this consistency must not be used in cooling system.



104

NOTE



105

TRACTOR MAINTENANCE

Regular and properly done technicalmaintenance ensures trouble-free andsafe operation of tractor. All necessaryactions are covered in planned technicalmaintenance that starts immediatelyafter starting tractor in operation. Youwill avoid possible technical troublesand prolong life of your tractor byproperly done technical maintenance.Keep consistently safety regulations atall operations.

PagePlanned technical maintenance .............................................................................. 106Lubrication chart of tractor Z 3321 - Z 7341 ............................................................ 112Lubrication chart of tractor Z 3341, Z 4341, Z 5341, Z 6341, Z 7341 ..................... 116Used liquids and fills ............................................................................................... 117Hydraulic brake and travel clutch control fluids ....................................................... 120Warning:.................................................................................................................. 120Fuel ......................................................................................................................... 120Antifreeze for cooling system and heating .............................................................. 120Warning:.................................................................................................................. 120Quantity of liquids (in litters) .................................................................................... 121



106

PLANNED TECHNICAL MAINTENANCEINSPECTION AND TRACTOR MAINTENANCE 1

After engine hoursInspection and maintenance operation

10 70 100

200

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

ENGINEEngine oil exchange X X Every 200 hoursEngine oil cleaner exchange X X Every 200 hoursCylinder head nuts retorque XValve clearance inspection and adjustment X X X X X XEngine lubrication pressure inspection - after starting Every startingInspection for oil level and lubrication system leaks X Every 10 hoursTurbocharger compressor housing and intake manifol cleaning X XInspection for turbocharger leaks and bearing play X XInspection for water pump bearing play X XENGINE ACCESSORYInspection for leaks and function of hydraulic system clutch control X Every 10 hoursInspection for coolant level and cooling system leaks X Every 10 hoursInspection for fuel tank and fuel system leaks X Every 10 hoursInspection for air pre-cleaner clogging X Every 10 hours

1 Radiator fins cleaning by pressure air X X Every 200 hoursDry air cleaner maintenance (maintain it depending upon cloggingindicator)

X Every 10 hours

2 Coolant exchange X X X X XInspection and adjustment of injection pump X X



107



10 70 100

200

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

Inspection for turbocharger lubrication system leaks X X X XInspection for injector opening pressure and nozzle function X X X X X X XFuel cleaner cartdridge exchange X X X X X X X X X X XDrive belt tension inspection and adjustment X X Every 200 hoursFuel course cleaner inspection and cleaning X X Every 200 hoursTRANSMISSIONTransmission oil cleaner cartridge exchange (Hydraulic pump suctioncleaner)

X X Every 600 hours

Inspection of oil level in transmission, differential housing and bull gearhousings (portals)

* X X Every 600 hours

2 Exchange of oil in transmission, differential housing and bull gear housing (portals) X X X X X

Front PTO oil level inspection X Every 200 hours2 Front PTO oil exchange * X X X X X X

Greasig of front PTO cardan shaft joint by vaseline X X Every 10 hoursAXLES AND STEERINGExchange of oil and hydrostatic steering cleaner cartridge * X X X X X

3 Hydrostatic steering hoses exchange X XGreasing of front axle pivot pin X Every 200 hoursGreasing of front axle knee (extension) X Every 200 hours



108



10 70 100

200

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

2 Greasing of front wheel hub (add grease max. to 1/3 of space) X X XGreasing of steering ball joints X X X X X X X X X XInspection for front wheel bearing play X X X X X X X X X X XInspection for front wheel toe in X X X X X X X X X X XInspection for torque of steering connection rod bolts, nuts, steerigarms and wheels

X Every 10 hours

Inspection for tire inflation pressure X Every 10 hoursInspection for steering function,steering oil level in steering tank X Every 10 hours FRONT DRIVING AXLEExchange of oil in front axle housing and final drive housings * X X X X XInspection for oil level in front axle housing and final drive housings X Every 200 hoursGreasing of drive shaft joits X X XGreasing of king pins X Every 200 hoursGreasing of pivot pin sliding bearing X Every 200 hoursHYDRAULICSGreasing of top sensing torsion bar X X X X X X X X X XGreasing of top sensing lever X Every 200 hoursGreasing of top sensing link X Every 200 hoursGreasing of lift assist cylinder pins X Every 200 hoursGreasing of telescopic control link X Every 200 hoursGreasing of right lifting link X X X X X X X X X X



109



10 70 100

200

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

Greasing of front three point hitch pins X X X X X X X X X XInspection for front three point hitch hydraulic circuit leaks X Every 10 hoursInspection for leaks and functions of particular hydraulic systems X X Every 200 hours

BRAKE SYSTEMInspection for brake liquid level and brake system leaks X Every 10 hoursInspection for air brake system leaks and brake effyciency of tractorwith trailer

X Every 10 hours

Inspection for function and adjustment of service and parking brake X X X X X X X X X XAir brake adjustment X X X X X XClutch and brake pedal free-travel adjustment X Every 200 hoursGreasing of hydraulic brake system control X XDraining of condesed water from air tank X X X X X X X X X XGreasing of all sliding surfaces of air instruments X X

4 Exchange of brake system rubber parts X X5 Air tank revision according to valid regulations X X

Exchange of rubber parts, eventually adjustment of air instruments X XELECTRICAL INSTALLATIONInspection for charging function Every starting

6 Inspect for status and function of electrical equipment and accessory X X Every 200 hoursInspection for charging voltage X X

7 Inspection for batery electrolyte level X Every 200 hours



110



10 70 100

200

600

1200

1800

2400

3000

3600

4200

4800

5400

6000

7 Cleaning of battery terminals and their conservation by vaseline X Every 200 hoursInspection of starter, bearings,carbon brushes and their holders X XInspection of alternator,bearings, electronics, collectors X X

2 Greasing of front and rear wiper mechanism X X X X XSAFETY CAB AND TRACTOR ACCESSORYInspection for plays in the complete system of hydrostatic steering X X Every 200 hoursInspection for driver‘s seat function, greasing of moving parts X Every 200 hours

8 Inspection for seat schock absorber leaks X XExchange of seat schock absorber oil X X XGreasing of door hinge, rear window,pin and door lock X X X X X X X X X XGreasing of trailer hitch automatic mouth X Every 200 hoursGreasing of pick up hitch and controll push pull cable X X X X X X X X X XInspection and eventual cleaning of cab filters X Every 10 hoursInspection of hitches, attachements including trailer X Every 10 hoursGreasing of heating blower bearing X Every 600 hoursDraining of condensed water from front PTO clutch before winter season



111

Note:

∗ After first implementation of new tractor or at after general repair.1 Clean daily when working with front attached machines if necessary in shorter periods2 Max. period - 2 years.3 Change hoses at least after four years from time of their production.

New hoses must not be older two years from time of their production mentioned on hose surface.4 Max. period - five years from tractor production time.5 Max. period - five years from air-tank production time or after accident.6 This covers the adjustment of front asymmetric headlight and adjustment of brake indicator light switches ( max. play

between switch and foot brake pedal stop must be 0,5 to 1,0 mm).7 In summer season - every 100 hours.8 In case of leakage remove the failed piston rod sealing, flush out the shock absorber by petrol and fill it up with 70 ccm of

shock absorber oil.



112

LUBRICATION CHART OF TRACTOR Z 3321 - Z 7341

A 139



113

LUBRICATION CHART OF TRACTOR Z 3321 - Z 7341

A 140



114

LUBRICATION CHART OF TRACTOR Z 3321 - Z 7341Pos. Lubrication point - inspection Fill sort

Summer Winter123456789

1011121314151617

18192021222324252627282930

Cooling system - antifreeze exchangeEngine - oil exchangeSteering oil reservoirBrake fluid reservoirTransmissionDriver s seat (handle and seat rollers)Driver s seat shock absorberFront axle pivot pin (2 lub. nipples)Rigid knees of front axle (2 lub. nipples)Front wheel bearingsSteering lever ball jointsTop link sensing lever (1 lub. nipple)Lift assisting cylinder pins (2 or 4 lub. nipples)Telescopic control of vertical lift link (1 lub. nipple)Right vertical lift link of three point hitch (1 lub. nipple)Torsion shaft of sensing control (1 lub. nipple)Push-pull cable of pick up hitch, hand parking brake, andPTO clutch controlCab blower bearingsBearing and lever system of front and rear wiperLeft lifting arm pinLower pin of three point hitch supportClutch control shaft (2 lubrication. nipples)Cab door hingeLower draft link nutsBull gears (portals)Clutch control bearing sleeveFront PTO jointsFront PTO gear boxFront three point hitch pinsTrailer hitch automatic mouth (4 lubrication. nipples)

antifreezeacc. to TAB.1

ARALSynthol 205

acc. to TAB.4PM - LA 2

Shock abs. oilPM - LA 2PM - LA 2PM - LA 2PM - LA 2PM - LA 2PM - LA 2PM - LA 2PM - LA 2PM - LA 2

PM - LA 2acc. to TAB.2acc. to TAB.5

PM - LA 2PM - LA 2PM - LA 2

acc.to TAB.2PM - LA 2

acc.to TAB.4acc.to TAB.2

PM - LA 2acc.to TAB.3

PM - LA 2PM - LA 2



115

LUBRICATION CHART OF TRACTOR Z 3321 - Z 7341Pos. Lubrication point - inspection Fill sort

Summer Winter3132

33

3435

BatteryClutch control cylinder (after disassembly)

Brake control cylinders (after disassembly)

Pick up hitch pinBrake booster- pneumatic circuithydraulic circuit

*Distilled waterWACKER Siliconpaste P4 Weich

WACKER Siliconpaste P4 Weich

PM “ LA 2

PM - LA 2WACKER Siliconpaste P4 Weich

* - add water up to level marked on battery case



116

LUBRICATION CHART OF TRACTOR Z 3341, Z 4341, Z 5341, Z 6341, Z 7341

A 141

Pos. Lubrication point - inspection Fill sortSummer Winter

414243

44

44a

45

Front axle king pin nipplesPivot pin sliding bearing nipplesFront axle differential housing

Front axle final drive housing

Front axle final drive with brakes

Driving shaft connection bushings

MOGUL LV 2 MMOGUL LV 2 MAPI GL5*/MIL-

L2105DAPI GL5*/MIL-

L2105DAGIP Rotra Multi

THTMOGUL LV 2 M

* - oil with additives for limited slip differential and wet brakes



117

USED LIQUIDS AND FILLSTRACTORS Z 3321, Z 3341, Z 4321, Z 4341,Z 5321, Z 5341, Z 6321, Z 6341, Z 7321, Z 7341Engine oils TAB.1:

Viscosity classSAE J 300 JUN 87

API classAPI, SAE J 183 MAR 88

Suitability forambient

temperature

Specification API classCCMC APR 95

turbocharged naturallyaspirated

turbocharged naturallyaspirated

10W/3010

CD+, CE, CF-4 CC below -70C MIL-L-2104 D-4/PD 2

20W/3020W/4015W/3015W/40

CD+, CE, CF-4 CC below -70Cup to +300C MIL-L-2104 D-4/PD 2

20W/3020W/4020W/50

3040

CD+, CE, CF-4 CC above +300C MIL-L-2104 D-4/PD 2



118

USED LIQUIDS AND FILLSThe following oils were verified in Zetor engines TAB.2:

Manufacturer Oil mark Viscosity class API classOils for turbocharged engines

Paramo PardubiceParamo PardubiceParamo PardubiceSHELLARALARALKORAMO Kolsn° MV

M7ADS III-TRYSKM7ADS III-TRYSK SUPERM7ADS IV-TRYSK SUPER TURBORIMULA TXMULTI TURBORALAUSTROTRACMOGUL DIESEL DTT Plus° MV truck M plus° MV truck FE plus° MV truck FE° MV austrotrac° MV truck LD° MV RME plus

20W/4015W/4015W/4010W/3015W/4010W/3010W/4015W/4010W/4010W/4010W/3015W/4015W/40

SF/CD+SG/CESG/CF-4SG/CF-4CF-4/SHCE/SFCF-4CF-4/SGCF-4CE/SGCECECE/SG

Oils for naturally aspirated enginesKORAMO KolsnKORAMO Kolsn° MV

MOGUL M7ADX SUPER STABILMOGUL DIESEL DTSuper diesel

15W/4015W/4015W/40

SF/CCCCSD/SE



119

USED LIQUIDS AND FILLSThe following oils were verified in front PTO gearbox of Zetor tractor TAB. 3:

Viscosity classSAE J 306 MAR 85

API classAPI, SAE J 308 NOV 82

Suitability for ambient temperature Specification

Paramo Pardubice80W

GYROL PP 80GL-4

all seasonall season

GL4MIL-L-2105

The following oils were verified in transmission of Zetor tractor TAB. 4:Manufacturer Oil mark Viscosity class API class

SHELL DONAX TT 80W GL-4ARAL FLUID HGS

The following oils were verified in hydrostatic steering of Zetor tractor TAB.5:Manufacturer Oil mark Standard

ARAL° MV° MV° MV° MV

SHELL

VITAM HF 32HLP-D32HLP-D46HLP-32HLP-46

DONAX TA

ISO VG 32ISO VG 46

DIN 51 524-HLPDIN 51 524-HLP

-

The following Vaseline were verified in Zetor tractors TAB. 6:Manufacturer Oil Mark Standard

° MV

-

° MV signum L2° MV ecodur EP 2

PM-LA 2

DIN 51 825-K2-30DIN 51 825-KPF E 2K-20

ISO 6743/9, ISO-L-XBCEA 2



120

USED LIQUIDS AND FILLSHYDRAULIC BRAKE AND TRAVEL CLUTCH CONTROLFLUIDSBrake fluid SYNTHOL 205 yellow according to PND 31-656-80(classification of fluid according to ISO regulation 4925 or SAEJ 1703).The fluid is not intended for arctic conditions.

WARNING:1. Fluids of the same classification can be mutually mixed2. Brake fluid must be exchanged minimally once per two

years independently on operation hours

FUELSummer diesel fuel NM-4 according to - SN 656506 for periodfrom 1 April to 31 October.Winter diesel fuel NM-22 according to - SN 656506 for periodfrom 1 November to 31 March.NOTE: Similarly the suitable fuels must be used abroad .

ANTIFREEZE FOR COOLING SYSTEM AND HEATINGAntifreeze FRIDEX-STABIL or FRIDIOL 91 and demineralizedwater in ratio 1:1,5 (add the mixture in this ratio ).Antifreeze liquids exchanged abroad must contain anti-corrosion additives protecting all materials of cooling systemand tractor heating (including rubber parts and cylinder headgasket ).

WARNING:1. Antifreeze FRIDEX STABIL and FRIDIOL 91 are mutually

mixable.2. Above mentioned liquids must not be mixed with liquids of

another marks.3. Exchange the liquid after two years.



121

QUANTITY OF LIQUIDS (IN LITTERS)Name, destination Fill sort Z 3321

Z 3341(in liters)

Z 4321 toZ 7341

(in liters)Antifreezew/o heatingw/ heating

Fridex-Stabil(FRIDIOL 91) + demineralized water

9,510,5

10,611,6

Fuel Diesel fuel 4 Diesel fuel 22 120 120Engine oil acc. to TAB. 1, 2 9,0 12,0Olej do p’evodovky a rozvodovky podle TAB. 4 62 - 64*** 62 - 64***Oil for bull gear housing PP 80 2x1,9 2x1,9Oil for front axle housing API GL5*/MIL-L2105D 5,5 5,5Oil for front axle planet gear API GL5*/MIL-L2105D 2x0,6 2x0,6Oil for front axle planet gear with brakes AGIP Rotra Multi THT 2x1,7 2x1,7Oil for front PTO gearbox TAB.3 0,8 0,8Brake fluid HD 205 0,5 0,5Hydrostatic steering oil Aral Vitamin HF 32

Shell Donax TAacc. to TAB. 5

2,2 2,5

Oil for front axle final drive shock absorber oil 0,07 0,07*** - The oil quantity is increased by 2 litters at 4WD tractors. The oil quantity needs to be by 7 litters increased at tractor working

in hilly conditions. This needs to be done also in case of implementation with machine connected to the outer hydrauliccircuit.



122

NOTE



123

NOTE



124

NOTE



125

NOTE



126

NOTE



127

MAINTENANCE INSTRUCTIONS

Driver or tractor user alone can doalmost any work on planned technicalmaintenance. If you don’t have a suffi-cient technical equipment let to do morecomplicated work at the authorizedservice.

All work in connection withcleaning, lubrication and adjust-ment of tractor or implementedmachine must be done only afterstopping engine and othermoving parts, except of brake,charging and hydraulic inspec-tion.

PageLubrication of engine Z 5202................................................................................... 129Lubrication of engine Z 6202 - Z 7702 ....................................................................130Lubrication of engine Z 7302................................................................................... 131Engine oil level inspection ....................................................................................... 132Engine oil draining...................................................................................................132Engine oil cleaner exchange ................................................................................... 132Engine oil filling up ..................................................................................................133Fuel course cleaner cleaning .................................................................................. 133Fuel cleaner cartridge exchange ............................................................................. 133Fuel system bleeding .............................................................................................. 134Dry air cleaner maintenance ................................................................................... 135Main air filter element regeneration .........................................................................135Inner safety air filter element exchange ..................................................................136Air filter element reassembly ................................................................................... 136Clogging indicator reset .......................................................................................... 136Hydrostatic steering oil and filter element exchange ............................................... 137Hydrostatic steering system bleeding .....................................................................138Exchange of hydrostatic steering hoses .................................................................139Exchange of coolant................................................................................................ 140Inspection and oil exchange in transmission, differential housing, and bull gearhousings (portals)....................................................................................................141Draining and inspection openings ........................................................................... 141After draining oil ......................................................................................................142∗ Front driving axle ..................................................................................................142Front PTO gearbox..................................................................................................143Brake fluid filling up .................................................................................................143Heating system air filter cleaning ............................................................................ 144Draining of condensed water from air tank ............................................................. 144Air system inspection for leaks................................................................................ 144Tire maintenance ....................................................................................................145Tire inflation............................................................................................................. 145Recommended tire inflation pressure for front wheels of tractors - Z 3321, Z 4321,Z 5321, Z 6321, Z 7321........................................................................................... 146



128

MAINTENANCE INSTRUCTIONSPage

Recommended tire inflating pressure for front driving wheels of tractors - Z 3341,Z 4341, Z 5341, Z 6341, Z 7341 ............................................................................. 147Recommended tire inflating pressure for rear wheels of tractors - Z 3321, Z 3341,Z 4321, Z 4341, Z 5321, Z 5341, Z 6321, Z 6341, Z 7321, Z 7341 ........................ 148Recommended tire inflation pressure for radial rear wheels of tractors - Z 3321,Z 3341, Z 4321, Z 4341, Z 5321, Z 5341, Z 6321, Z 6341, Z 7321, Z 7341 ........... 149Increased tire load capacity .................................................................................... 150Tractor storage........................................................................................................ 150



129


A 141a

LUBRICATION OF ENGINE Z 52021. Suction strainer2. Oil pump3. Reduction valve4. Oil filter w/ exchangeable cartridge5. Main oil channel6. Pressure switch7. Indicator light8. Filler9. Oil dipstick10. Injection pump11. Oil draining plug



130


A 142

LUBRICATION OF ENGINE Z 6202 - Z77021. Suction strainer2. Oil pump3. Reduction valve4. Oil filter w/ exchangeable cartridge5. Main oil channel6. Pressure switch7. Indicator light8. Filler9. Oil dipstick10. Injection pump11. Oil draining plug



131


A 143

LUBRICATION OF ENGINE Z 73021. Suction strainer2. Oil pump3. Reduction valve4. Oil filter w/ exchangeable cartridge5. Main oil channel6. Pressure switch7. Indicator light8. Filler9. Oil dipstick10. Injection pump11. Oil draining plug12. Cooling exchanger13. Turbocharger



132


A 144 A 145 A 146

ENGINE OIL LEVEL INSPECTIONDaily inspect the oil level before startingwork and with tractor in horizontal po-sition. Remove the oil dipstick (1), wipe itwith cloth and thread it. The oil must notbe under lower dipstick mark afterrepeated removing. Add the oil into filler(2) if needed.

ENGINE OIL DRAININGDrain the oil by removing of drainingplug, do it immediately after stoppingtractor or after engine preheating toworking temperature. Clean the drainingplug before reassembly

ENGINE OIL CLEANER EXCHANGEThe engine oil cleaner is exchanged atevery engine oil exchange. Disassemblethe cleaner. Grease the sealing area ofnew cleaner by oil, assemble the newcleaner and tighten it by hand only.Tighten again the oil cleaner by handafter few minutes of engine run andwarming the oil up. Check the cleanerfor leak.



133


A 147 A 148 A 149

ENGINE OIL FILLING UPFill the prescribed quantity of oil into thefiller (2). Start the engine and let it run 2to 3 minutes at 750 to 800 RPM.Check the oil level by dipstick (1) afterstopping engine and stabilizing of engineoil level. Inspect for oil leakage of oilcleaner, draining plug and other fittings.

FUEL COURSE CLEANER CLEANINGRemove the ring nut (1) and the fuelcleaner bowl (2) with sealing andstrainer. Clean the bowl and strainer withdiesel fuel. Check the right position ofsealing at reassembly of fuel cleanerbowl, before tightening of ring nut. Bleedthe fuel system.

FUEL CLEANER CARTRIDGE EX-CHANGEPut the suitable vessel under the enginebefore fuel cleaner cartridge exchangeto ketch dropping fuel from the cleaner.Exchange the fuel cleaner cartridge afterreleasing of the nut (1) and removing thebowel (2). Check for the proper bowelsealing position at reassembly ofcleaned bowel with the new fuel cleanercartridge. Bleed the fuel system.



134


A 150 A 151

FUEL SYSTEM BLEEDINGPut the suitable vessel under the engine before bleeding to ketch dropping fuel fromthe cleaner and injection pump.Do the following:- Prime the fuel system by several strokes of hand priming pump (1).- Loosen the screw of fuel cleaner input fitting (2) and let escape the foam.- Retorque the screw (2) and repeat the process until the clean foam-free fuel

fluently leaks after screw loosening.- Bleed the injection pump by the same way by means of screw located on injection

pump case (3).



135


A 152 A 153

DRY AIR CLEANER MAINTENANCEDry air cleaner maintenance must bedone after indication of clogging byclogging indicator (1b). The indicator isaccessible after removing of left (right)tractor side shield. The indicator is lo-cated on suction pipe. Clogging is me-chanically indicated by red field appear-ed on the clogging indicator after the aircleaner clogging1a - air cleaner is not clogged1b - air cleaner is clogged - do the main-tenance.

Maintain the air cleaner by the followingway:1. Push and turn two quick lockers (2)

on the left (right) tractor side shield.2. Lift a little the side shield and remove

it from the tractor.3. Remove the wing nut (3) of air

cleaner cover.4. Remove the air cleaner cover (4).5. Remove the main air filter element

(5).

MAIN AIR FILTER ELEMENT REGENE-RATIONIf the main air filter element is notdamaged (dust on the inner side of airfilter element must not be appeared) doregeneration by pressure air blown fromthe inner side of element. The main airfilter element can be regenerated maxi-mally three times. The main air filterelement needs to be replaced once peryear.



136


A 154 A 155

INNER SAFETY AIR FILTER ELEMENTEXCHANGE

Inner safety air filter element cannot be regenerated. It must beexchanged in the followingcases:

- if the main air filter element is da-maged

- after 5th maintenance of air cleaner- minimally once per two years

AIR FILTER ELEMENT REASSEMBLYBe careful at the air filter element re-assembly:- keep the contact surfaces clean- air filter elements must not be defor-

med and must not vibrate afterassembly

- rubber sealing must be fitted properlyround the complete circumference, theproper tightness of the completecleaner must be assured after reas-sembly of air filter cover

CLOGGING INDICATOR RESETReset the clogging indicator afterdry air cleaner maintenance.



137


A 156

HYDROSTATIC STEERING OIL ANDFILTER ELEMENT EXCHANGE- Remove the left tractor side shield.

Loosen suction and draining hoseclamps and remove hoses from oiltank necks. Drain the oil from tank.

- Remove the oil tank filler cap, pushthe filter spring, turn the filter towardsthe filler and remove it. Install the newfilter element.

- Remove both hoses from steeringcylinder and put them together withreturn line hose into vessels for the oldoil

- Start the engine and turn the steeringwheel twice or three times into bothsides at low engine idle run (max. 10seconds) to remove the oil from thesteering unit.

- Fix the tractor against movement andlift the front axle.

- Put a vessel for the old oil under thesteering cylinder and remove the oilfrom cylinder by turning of wheels (byhand).

- Reassemble all disconnected fittings.- Fill the tank by oil and bleed the hyd-

rostatic steering circuit.



138


A 157 A 157a

HYDROSTATIC STEERING SYSTEMBLEEDINGAttention: Don’t turn the steering wheelwhen doing step 1 and 2. The steeringsystem might be aerated.1. Fill almost the complete oil tank ca-

pacity. Crank the engine 10 secondswithout starting if possible ( with handthrottle in STOP position). If the en-gine starts stop it immediately. Checkand add oil into tank. Repeat this mi-nimally three times, ever check andadd oil into tank.

Attention: Don’t allow draining or drop-ping the oil from tank or hydrostaticsteering circuit. The steering systemmight be aerated.2. Start the engine and let it run for 2

minutes at low idle. Stop the engineand check the tank oil level.

3. Lift front wheels of tractor.4. Turn the steering wheel several times

at engine low idle run (to left and rightstop for a short time) you will bleedthe hydrostatic steering system bythis way.

5. Check and add the oil into tank up tothe mark and lower the front wheelsto the ground.



139


A 158

EXCHANGE OF HYDROSTATICSTEERING HOSESHydrostatic steering hoses must beexchanged after four years from time ofmanufacturing (time is marked on hosesurface) or after 3 000 hours of tractoroperation, eventually immediately afterfounding any symptoms of damage i.e.hose sweating, local bulging, leakage ofoil at fittings and on hose surface, me-chanical damage of hose surface up tosteel wire cord.

Don’t keep the steering wheel in themax. steering angle positions (max. timeis 20 seconds ), otherwise the oil is ex-cessively heated in the hydrostaticsteering circuit.

Steeringability is kept even in ca-se of hydrostatic steering pumpfailure or if the engine stops butthe steering force is bigger on thesteering wheel. Tractor can bedriven into the nearest place forrepair at reduced transportationspeed.



140


A 159 A 160 A 161

EXCHANGE OF COOLANTKeep the following instruction:- Open the heating system valve (A) (at

cab tractors only) and release theradiator overpressure filler cap (B).

- Drain the coolant from engine block(C). Draining valve is accessible afterremoving of the right side shield.

- Drain the coolant from radiator (D).Draining valve is accessible after re-moving of the left side shield.

- Close both draining valves afterdraining of coolant (let the heating sys-tem valve (A) opened).

Fill the cooling system with antifreezemixture - antifreeze + demineralized wa-ter in ratio 1:1,5. Start the engine and letit run approximately 1 minute. Add thecoolant and close the radiator by over-pressure filler cap. The right coolant le-vel is approximately 55 mm from the up-per edge of filler when the cold engine.Exchange the coolant at least after everytwo years if the antifreeze is used incoolant.



141


A 162 A 163 A 164

INSPECTION AND OIL EXCHANGE INTRANSMISSION, DIFFERENTIALHOUSING, AND BULL GEARHOUSINGS (PORTALS)The oil level is inspected by oil dipstickintegrated in filler cap (5), that is locatedon the left rear part of differential case.Inspect the oil level at stopped engine,the oil must be within the range of oildipstick flattened part.

Damaged or lost plug must beexchanged by an original plugonly this will assure breathing oftransmission case.

DRAINING AND INSPECTION OPEN-INGS1. Transmission draining plug.2. Differential case draining plug.3. Bull gear housing draining plug.4. Inspection and filling plug of bull gear

housing (valid for standard position ofbull gear housing)

5. Inspection and filling plug of trans-mission.

6. Draining plug of right and left brakechamber.

7. Brake chamber oil dipstick.8. Front wheel drive gearbox draining

plug.



142


A 165 A 166

AFTER DRAINING OIL- Change the oil cleaner cartridge (1)- Assemble all draining plugs after their

cleaning. Check the status of sealingrings, eventually exchange them fornew ones.

- Fill 60 litters of oil, start the engine andlet it run approximately for 2 minutes.

- Add the oil up to the maximum level(see the tab. for liquid quantity) afterstopping engine and stabilizing oillevel. Check for the right quantity bythe oil dipstick depending upon tractoroperating conditions (see the nexttext).

- You can inspect the oil level by theinspection opening in the right part oftransmission.

FRONT DRIVING AXLEFront driving axle is equipped with cent-ral drive with swinging axle in bevel gearaxes. Hydrostatic steering cylinder isfitted on axle beam. The axle isequipped with automatic differential lock.Front wheel drive is engaged anddisengaged Electro-pneumatically.Front wheel drive engage is indicated byindicator lamp on dashboard.

Front driving axle is engagedwhen tractor and engine stopped.



143


A 167 A 168 A 169

∗ FRONT PTO GEARBOX1. Opening for filler.2. Opening for greasing of front cardan

shaft joint.3. Condensed water and impurity drain-

ing plug.4. Oil inspection plugOpenings 1, 2 are accessible after sideshield removing.

5. Oil draining plug.Water condensed in space ofclutch sealing cuff must beremoved before every winterseason by removing of plug (B -3) and several time engaging anddisengaging of PTO shaft. PTOengaging and disengaging isdone by control lever located onsteering panel.

Pressure air will blow eventual impuritiesor condensed water. Reassemble theplug after its cleaning.

BRAKE FLUID FILLING UPMaintain the brake fluid levelwithin 3/4 (max. level) up to 1/2(min. level) reservoir capacity.Keep the strict cleanness whenmanipulating with brake fluid.

Daily inspect the brake fluid level beforedriving. Fill up the brake fluid through thefiller strainer.



144


A 170 A 171 A 172

HEATING SYSTEM AIR FILTERCLEANINGFilters are located under grills above thefront windshield outside the cab.Regenerate filters by kicking out, or bypressure air blowing through, accordingto the stage of clogging. Daily check forclogging. Exchange the strong cloggedfilters.

Tractors are not equipped withspecial filters of cab intake air.That’s why tractors are not in-tended for operation with aero-sols and other health dangerousmediums.

DRAINING OF CONDENSED WATERFROM AIR TANKDrain the condensed water by inclinationof draining valve by pulling of its ring.Valve is located on the bottom part of airtank.

AIR SYSTEM INSPECTION FORLEAKS- Fill the air tank to the max. pressure.- The pressure must not drop down by

more than 10 kPa after 10 minutes atstopped engine.

Daily inspect the system for leaksbefore operation with trailer. Theindicator light on the dashboardis “on“ when the air brake systemfails or after dropping of pressureunder 420 kPa.



145


A 173 A 174

TIRE MAINTENANCERegularly check the outer surface oftires and verify that tires are withoutdefects in the side part and the cord isnot damaged.

Discard tires with defects.

TIRE INFLATIONBasic values of recommended inflation pressure are mentioned in the followingtables. Regularly check for the inflation pressure before operation. Check theinflation pressure at cold tires. The tractor air pressure regulator can be used for tireinflation. Remove the regulator rubber plug when inflating tire and assemble a hosefor tire inflating instead of it. Screw down the hose fitting up to the end of thread forpushing the back pressure valve. Reduce the air pressure by brake pedaldepressing in case of mall function. The rubber plug must be reassembled on the airpressure regulator after tire inflating.



146

MAINTENANCE INSTRUCTIONSRECOMMENDED TIRE INFLATION PRESSURE FOR FRONT WHEELS OF TRACTORS - Z 3321 Z 4321, Z 5321, Z 6321, Z7321Sum of load capacity for both tires used at front axle must not exceed allowed axle load capacity (see TECHNICAL TRACTORPARAMETERS). Tires of different design, tread pattern and mark must not be assembled on the same axle of tractor.

Main operating conditions Tire size and design6,50-16

6 PR6,50-16

6 PR7,50-16

6 PR7,50-20

6 PRCultivation withlight implement

inflating pressure (kPa)load capacity (kg)

280-330505-560

280-310575-615

230-280660-745

230-280795-875

Ploughing inflating pressure (kPa)load capacity (kg)

280-330505-560

280-310575-615

230-280660-745

230-280795-875

Roadtransportation


280-330505-560

280-310575-615

230-280660-745

230-280795-875

Operation withfront loader(8 kmph)

inflating pressure(kPa)load capacity (kg)

--

385max. 1230

350max. 1490

350max. 1750



147

MAINTENANCE INSTRUCTIONSRECOMMENDED TIRE INFLATING PRESSURE FOR FRONT DRIVING WHEELS OF TRACTORS - Z 3341, Z 4341, Z 5341, Z6341, Z 7341Sum of load capacity for both tires used at front axle must not exceed allowed axle load capacity (see TECHNICAL TRACTORPARAMETERS). Tires of different design, tread pattern and mark must not be assembled on the same axle of tractor.

Main operating conditions Tire size and design9,5-248 PR

11,2-248 PR

11,2 R 24 12,4-248 PR

12,4 R 24 13,6 R 24

Cultivation withlight implement


150-190770-890

150-190935-1080

100-140875-1086

150-1901115-1280

100-1401005-1250

100-1401075-1330


190-240890-1010

190-2401080-1225

140-1601085-1180

190-2301280-1415

140-1601250-1360

140-1601330-1450

Roadtransportation


240-280max. 1010

240-280max. 1225

200max. 1180

230-270max. 1415

200max. 1360

200max. 1450

Operation withfront loader(8 kmph)


3001410

3001715

2001770

3001980

2002040

2002175

Operation withfront attachedimplements upto 15 kmph


2901410

2401590

1601580

2301830

1601820

1601940



148

MAINTENANCE INSTRUCTIONSRECOMMENDED TIRE INFLATING PRESSURE FOR REAR WHEELS OF TRACTORS - Z 3321, Z 3341, Z 4321, Z 4341, Z5321, Z 5341, Z 6321, Z 6341, Z 7321, Z 7341Sum of load capacity for both tires used at rear axle must not exceed allowed axle load capacity (see TECHNICAL TRACTORPARAMETERS).


8 PR16,9-30

8 PR12,4-32

6 PR16,9-34

8 PR13,6-36



110-1401675-1925

110-1401730-1990

110-1401120-1220

110-1401830-2110

110-1401300-1490


140-1701925-2175

140-1701990-2245

140-1701220-1355

140-1702110-2380

140-1601490-1615

Roadtransportation


2002175

2002245

2001355

2002380

1901615


6 PR14,9-28

8 PR12,4-36

6 PR18,4-30

6 PR18,4-34



110-1401005-1140

110-1401405-1610

110-1401135-1285

80-1201820-2225

80-1202020-2360


140-1701146-1275

140-1801610-1880

140-1701285-1440

120-1402225-2415

120-1402360-2565

Roadtransportation


2001275

2101880

2001440

1602415

1602565



149

MAINTENANCE INSTRUCTIONSRECOMMENDED TIRE INFLATION PRESSURE FOR RADIAL REAR WHEELS OF TRACTORS - Z 3321, Z 3341,Z 4321, Z4341, Z 5321, Z 5341, Z 6321, Z 6341, Z 7321, Z 7341Sum of load capacity for both tires used at rear axle must not exceed allowed axle load capacity (see TECHNICAL TRACTORPARAMETERS).

Main operating conditions Tire size and design16,9R28 16,9R30 16,9R34 13,6R36 12,4R32



100-1401660-2055

100-1401705-2110

100-1401800-2230

100-1401295-1605

100-1401110-1375


140-1602055-2270

140-1602110-2300

140-1602230-2430

140-1601605-1750

140-1601375-1500

Roadtransportation


2002240

2002300

2002430

2001750

2001500

Main operating conditions Tire size and design12,4R36 18,4R30 18,4R34



100-1401270-1490

100-1401960-2435

100-1402075-2570


140-1601490-1600

140-1602435-2650

140-1602570-2800

Roadtransportation


2001600

2002650

2002800



150

MAINTENANCE INSTRUCTIONSINCREASED TIRE LOAD CAPACITYThe allowed axle load capacitymentioned in tab. “TRACTOR TECHNI-CAL PARAMETERS“ must not be ex-ceeded at loading tractor.It is not allowed to increase the tire loadcapacity by farther increase of inflatingpressure over values mentioned in tableand with reducing tractor travel speedexcept of mentioned cases.

TRACTOR STORAGEIf the tractor is stored out of operation forshort period, inflate tires to value usedfor road transportation. When storage oftractor for a long period, support thetractor and reduce the tire pressure tominimum (wheels must not touch theground).

Tire load capacity can be increased in the following cases:Tools Tire type Respected limits:

% loadcapacityincrease

% inflatingpressureincrease∗

travel speedlimit (kmph)

min.numberof PR

Frontattachedimplements

non-drivenwheels 35% - 20 -driving wheels 40% max. 25% 8 6PR

Front loader not driven wheels 100% max. 25% 8 -driving wheels 40% max. 25% 8 6PR

∗ - over values mentioned in tables “RECOMMENDED TIRE INFLATION“



151

NOTE



152

NOTE



153

ADJUSTMENT

Almost all these following works requirecertain experience and service anddiagnostic equipment. That’s why werecommend to do this work atspecialized or authorized workshop.

PageDrive belt tension inspection ................................................................................... 154Cylinder heads retorque .......................................................................................... 154Valve clearance adjustment at engines Z 5202, Z 6202, Z 7202, Z 7702, Z 7302 .154Adjustment of injectors ............................................................................................ 155Attention: ................................................................................................................. 155Brake pedal free travel adjustment .........................................................................155Tractor brake system bleeding ................................................................................ 1561. Bleeding of trailer air brake system .....................................................................1562. Bleeding of hydraulic trailer brake system .......................................................... 1573. Service brake system bleeding ........................................................................... 1584. Bleeding of front driving axle brake system ........................................................ 158Bleeding process.....................................................................................................159Service and parking brake inspection and adjustment ............................................ 160Service brake adjustment........................................................................................ 161Parking brake adjustment ....................................................................................... 161Clutch pedal free travel adjustment .........................................................................161Check of clutch pedal position adjustment .............................................................. 162Clutch hydraulic circuit bleeding.............................................................................. 162Engine clutch adjustment ........................................................................................ 163Free play adjustment of front wheel tapered roller bearings at tractor Z 3321, Z 4321,Z 5321, Z 6321, Z 7321........................................................................................... 163Pick up hitch adjustment ......................................................................................... 164Adjustment of pick up hitch releasing push pull cable ............................................ 164Adjustment of hydraulic inner circuit control lever force .......................................... 164



154

ADJUSTMENT

A 175 A 176 A 177

DRIVE BELT TENSION INSPECTIONThe correct tension of each belt isassured when the belt is deflected 5 mmafter pushing on the belt by force 25 N.

CYLINDER HEADS RETORQUECylinder heads are retorqued at coldengine in the prescribed cross sequen-ce. The torque is 167 to 177 Nm.

VALVE CLEARANCE ADJUSTMENTAT ENGINES Z 5202, Z 6202, Z 7202, Z7702, Z 7302Engine valve clearance is adjusted atcold engine. The correct valve clearanceat suction and exhaust valve is0,25“ 0,05 mm.

At change of rocker arm movementcylinder rockerarm changes

cylinder rockerarm is adjusted

1st 4th3rd 2nd4th 1st2nd 3rd

At the engine Z 5202, after rocker armchanging, turn the crankshaft by onerevolution (360°) and do adjusting.



155

ADJUSTMENT

A 178 A 179

ADJUSTMENT OF INJECTORSInjectors are adjusted by the instrumentNV 50 or by the portable tester NV 251,that enables injector inspection directlyon the engine without its disassembly.The inspection process is described ininstruction manual of testers producedby Motorpal Jihlava. The injector open-ing pressure is 18,6-0,8 MPa at enginesZ 5202, Z 6202, Z 7202, Z 7702 and Z7302. Adjust the pressure to the upperlimit of tolerance. If the injector isremoved at the inspection, the sittingsurface for injector in the cylinder headmust be properly cleaned before injectorreassembly. Repaired and adjusted in-jector must be cleaned and the injectorbody needs to be coated by vaseline LT2.

ATTENTION:Pay the special attention for correct po-sition at reassembly of injector into theengine. Position the injector in cylinderhead that way the injector neck ismaximally 1,5 mm from the bolt.

BRAKE PEDAL FREE TRAVEL AD-JUSTMENTThe correct play between the brakepedal piston rod and the main brakevalve piston is 0,5-1,0 mm. Adjust theplay with unlatched pedals and afterreleasing of piston rod adjusting nut (1).



156

ADJUSTMENT

Dop 5 Dop 6

TRACTOR BRAKE SYSTEMBLEEDINGDo it in the following order.Bleed the system with unlatched pedalsseparately for each wheel. Follow theseinstructions:Important

When bleeding the brakehydraulic circuit, one pedal (1)must be pressed by 7,5+0,5 mm -

measured on the main brake valvepiston rod i.e. 3+0,2 mm on adjustingscrew (2) and the second pedal is usedfor bleeding. To be able to keep the rightdistance, insert the flat gauge ofcorresponding thickness between pedal(1) and adjusting screw (2) i.e. 3+0,2 mm.

1. BLEEDING OF TRAILER AIR BRAKE SYSTEMBleed the system at working air pressure 730 “ 20 kPa.- Add the missing volume of brake fluid at the brake fluid reservoir up to max. level.- Remove plugs from vent screws (2) of trailer control valve (3) located on the right

hand side of tractor between fuel tank and axle.- Slide the hose on the vent screws and put the other end of hose into the

transparent reservoir (4) partially filled with brake fluid. Place the reservoirminimally 300 mm above the vent screw. The vent screws must be permanentlyunder pressure to avoid aerating of brake system through the screw threads.

- Loosen the bleeding screws max. by 1/4 turns.- Process for bleeding is the same as mentioned in - Important (see page 156).- Fully press the pedal which is not blocked by gauge and tighten the adjusting

screw.- Release the brake pedal and repeat the process so long until bubbles come from

the hose.



157

ADJUSTMENT

Dop 7 Dop 8

Check the brake fluid level in the brakefluid reservoir (1) when bleeding to avoidaerating of the brake system. Keep thehose end permanently under brake fluidlevel. Reservoir (3) needs to be kept inthe highest possible position. The brakefluid must be completely exchanged inthe whole brake circuit minimally aftertwo years.

2. BLEEDING OF HYDRAULIC TRAILER BRAKE SYSTEMBleed the system following the instructions:- Add the missing volume of brake fluid into the brake fluid reservoir up to max.

level.- Remove plugs from vent screws (2) of hydraulic trailer control valve (3) located on

the left cab silentblock support.- Slide the hose on the vent screw and put the other end of hose into the

transparent reservoir (4) partially filled with brake fluid. Place the reservoirminimally 300 mm above the vent screw. The vent screw must be permanentlyunder pressure to avoid aerating of brake system through the screw threads.

- Loosen the bleeding screws max. by 1/4 turns.- Test which pedal causes flowing the fluid into tank after pressing pedal. You will do

bleeding by this pedal.- Process for bleeding is the same as mentioned in - Important (see page 156).- Fully press the pedal which is not blocked by gauge and tighten the adjusting


the hose.



158

ADJUSTMENT

Dop 9 Dop 10

3. SERVICE BRAKE SYSTEM BLEEDING- Check the brake fluid level at the brake fluid reservoir (1). Add the missing volume

with the new brake fluid up to max. level.- Slide the hose on the vent screw after removing of rubber plug and put the other

end of hose into the transparent reservoir partially filled with brake fluid . The ventscrew must be permanently under pressure to avoid aerating of brake systemtrough the screw threads. Place the reservoir minimally 300 mm above the ventscrew at this work.

- Loosen the vent screw maximally by 1/4 turn.- Process for bleeding is the same as mentioned in - Important (see page 156).- Fully press the pedal which is not blocked by gauge and tighten the adjusting


the hose.

4. BLEEDING OF FRONT DRIVINGAXLE BRAKE SYSTEMIt is necessary to bleed the trailer controlvalve before bleeding according to thepoint 2. Bleeding of trailer air brakesystem and this must be done even incase that air trailer brakes are not in-stalled.Bleed the system at working air pressure730“ 20 following the instructions:



159

ADJUSTMENT

Dop 11 Dop 12

BLEEDING PROCESS- Check the brake fluid level at the brake fluid reservoir. Add the missing volume of

brake fluid into the brake fluid reservoir up to max. level.- Remove plugs from vent screws of front driving (screws are located on the upper

surfaces of final drive housings).- Slide the hose on the vent screws and put the other end of hose into the

transparent reservoir partially filled with brake fluid. Place the reservoir minimally300 mm above the vent screw. The vent screw must be permanently underpressure to avoid aerating of brake system through the screw threads.

- Left and right brake is bled simultaneously.- Loosen the vent screw maximally by 1/4 turn.- Press fully latched brake pedals up to stop and tighten the vent screw.- Release the brake pedal and repeat procedure so long until the clear brake fluid

without bubbles flows out from the hose.

- Tightened the vent screws by torque0,8 - 1,2 Nm. after bleeding of frontdriving axle brake system.

- Check the brake fluid level in thebrake fluid reservoir when bleeding toavoid aerating of the brake system.

- Keep the hose end permanently underbrake fluid level.

- Reservoir needs to be kept in thehighest possible position.

- The brake fluid must be completelyexchanged in the whole brake circuitminimally after two years.



160

ADJUSTMENT

A 184

SERVICE AND PARKING BRAKE IN-SPECTION AND ADJUSTMENTAdjustment must be done in the followngsteps:1. service brake adjustment2. parking brake adjustmentThe another way is not possible. Sepa-rately also only adjustment either serviceor parking brake is not possible. Ad-justment operations depend one uponthe another.



161

ADJUSTMENTSERVICE BRAKE ADJUSTMENT- Lift rear tractor wheels- Loosen nuts (6), nuts (2) and nut (4).- Loosen screw (5).- Let turn one wheel by means of your

helper. Simultaneously tighten screw(5) so long the wheel can not beturned by hand.

- After blocking of wheel loosen the ad-justing screw (5) by 4/6 of nut surfacei.e. 3/4 turns of screw

- Fix the screw position (5) by lockingnut (4)

- Adjusting process is the same for bothleft and right side of tractor

If the asymmetry of brake effect appearsbetween left and right brake the ad-justing screw (5) of brake with biggerbrake effect needs to be loosened to ad-just brake effect of both right and leftwheel. The screw can be loosened ma-ximally by 1/2 turn.If the asymmetry of brake effect is noteliminated after adjusting, the tractorbrakes must be adjusted in theauthorized service.

PARKING BRAKE ADJUSTMENT- Measure and adjust the distance

between fork (7) and bracket (8) tovalue 107±2 mm.

- Tighten nut (2) so to be play 0,1 mmbetween lower nut (2) and pin (3) i.e.light contact of nut (2) with pin (3).

- Rise and lower the parking brake lever(1) several-times. You will eliminatemutual plays among parts by this way.

- Check the play between nut (2) andpin (3), settled to 0,1 mm. i.e. lightcontact of nut (2) with pin (3).andeventually adjust it.

- Fix the nut (2) by the second lock nut(2).

If the asymmetry of brake effect appearsbetween left and right brake when park-ing brake applied the upper adjusting nut(6) of brake with bigger brake effectneeds to be loosened to adjust brakeeffect of both right and left wheel. Thenut can be loosened maximally by 1,5turn.If the asymmetry of brake effect is noteliminated after adjusting, the tractorbrakes must be adjusted in the autho-rized service.Tighten all locking nuts after brake ad-justment.

Note:There are adjusting openings in thetractor cab floor for making easy thebrake adjustment.

A 185

CLUTCH PEDAL FREE TRAVEL AD-JUSTMENTThe play between pedal piston rod andclutch valve piston is not adjusted - thisis adjusted by producer.The mutual position between piston rodand piston rod eye (1) is adjusted thatway the piston rod is maximally pulledfrom cylinder and the pedal is stoppedon the upper stop screw (2) in the sametime. Subsequently the piston rod isfixed by nut (3) to piston rod eye. Checkan eventual deformation of dust capafter adjustment in, case of deformationcorrect it by hand.



162

ADJUSTMENT

A 185a A 186 A 187

CHECK OF CLUTCH PEDAL POSI-TION ADJUSTMENTThis check is carried out only in case theHi-Lo (torque multiplier) ∗ is assembledat your tractor.The right position of clutch pedal isadjusted in the manufacturing plant.In the field, the play 0,5 - 1 mm ischecked between piston rod and pistonrod pin.

CLUTCH HYDRAULIC CIRCUITBLEEDINGBleed the clutch hydraulic circuit by thesame way as rear brake system bleed-ing. Vent screw of clutch hydraulic circuitis located on the clutch control cylinder(1).

Add only the fresh brake fluid intothe brake fluid reservoir that iscommon for both brake andclutch circuit.

The brake fluid must be completely ex-changed in the whole brake circuit mini-mally after two years including the clutchhydraulic circuit.

Brake fluid filling is easier after silent-block nut loosening and brake fluidreservoir holder tilting.

Hoses from the main clutch valvetowards brake fluid reservoirmust be upwards or horizontallydirected. Turns of hoses down-wards are not allowed.



163

ADJUSTMENTENGINE CLUTCH ADJUSTMENTAll three travel clutch levers must be inone line, and are in touch with controlcollar thrust bearing. In case the play ofone or two levers is bigger than 0,15mm from bearing, so adjust levers bynuts to be in touch with bearing. Thecomplete clutch wear is indicated byclutch slippage. Adjust the clutch to thefollowing values at disassembled tractorwhen exchanging clutch plate. Set travelclutch levers by nuts 25 mm from therecess on clutch cover. The difference inlevers setting can be maximally 0,15mm. Press the clutch pedal approx. 5xup to stop after assembly of engine withtransmission.

A 188

FREE PLAY ADJUSTMENT OF FRONT WHEEL TAPERED ROLLER BEARINGSAT TRACTOR Z 3321, Z 4321, Z 5321, Z 6321, Z 7321.- Fix tractor against movement, lift up and support the front axle.- Remove the bearing cover (1) and remove the cotter pin (2) from the castle nut

(3).- Torque the castle nut (3) by 15 Nm.- Loosen the nut by 180° and release the bearing by knocking of mallet to the wheel

hub.- Retorque the castle nut (3) with torque wrench by 3-5 Nm. Wheel must be freely

turned without evident play but without evident resistance. (Hub sealing creates afriction against turning and needs to be taken into consideration).

- Lock the castle nut with a new cotter pin.- Assemble the bearing cover (1).



164

ADJUSTMENT

A 189 A 190 A 191

PICK UP HITCH ADJUSTMENTChose the position control - "P" by hy-draulic selection control lever. Raise thehydraulic lifting arms into the upperposition. Hitch is in its working position.Adjust the telescopic links that way youthread the lock nuts to guiding tubewithout play. Than screw down the nutby 5 threads. The carrier is lifted a littleby this way and hooks are moved intotheir working position.

ADJUSTMENT OF PICK UP HITCH RE-LEASING PUSH PULL CABLEPick up hitch is in its working position.The push pull cable must be undertension that way to be the lever in cabwithout play. If the push pull cable is notproperly under tension, adjust it byscrewing up or down of adjusting screw(1). Lock the screw by lock nut (2) afterfinishing adjusting.

ADJUSTMENT OF HYDRAULIC INNERCIRCUIT CONTROL LEVER FORCEAdjust the friction force of inner circuitlever(1) by tightening of nut (2) that wayto avoid self-loosening of lever in anyposition of hydraulic inner circuit lever atchosen draft control.



165

NOTE



166

NOTE



167

ELECTRICAL INSTALLATION

Pay special attention for manipulationwith battery when repairing electricalinstallation to avoid contact of skin orclothes with electrolyte.

PageElectrical equipment ................................................................................................ 168Basic service information ........................................................................................ 168Battery..................................................................................................................... 169Battery maintenance ............................................................................................... 169Safety regulations for work with battery ..................................................................170Alternator................................................................................................................. 171Alternator maintenance ........................................................................................... 171Fuse box ................................................................................................................. 172Checking of front mask headlights adjustment ....................................................... 173Adjustment of front mask headlights .......................................................................173Checking of cab roof headlights adjustment ........................................................... 174Cab roof headlights adjustment .............................................................................. 174Wiring harness diagram of tractor Z 3321 - Z 7341 ................................................ 175Wiring harness diagram of tractor Z 3321 - Z 7341 (with cab) ................................ 177



168


A 192 A 193

ELECTRICAL EQUIPMENTNominal voltage (mi-nus poll (-) ground-ed) 12 VBattery 12V / 135 AhAlternator with inte-grated voltage regu-lator 14V;70 AStarter motor 12 V;2,9 kWDrive belts for:alternator, waterpump

AVX 10-1125La (2 PCs)

BASIC SERVICE INFORMATIONBattery "minus" poll must be ever connected with the ground and "plus" pollconnected with alternator. Vice versa connected battery destroys the completeelectronics of alternator.If starting tractor by means of another battery or auxiliary source don t forget toconnect "plus" to "plus" and "minus" to "minus and the auxiliary source must be setto 12 V. Disconnect battery by battery switch ∗ or remove the connector for tractorground (-) if changing any part of charging circuit to avoid possible short circuit.

At any manipulation or repair of starter the battery must be disconnected andall shifting levers including PTO lever must be in neutral position to avoid selfstarting and life hazard. Starting tractor by short circuit of starter connectorsis forbidden! Tractor must be always started from driver ’s seat.



169


A 194 A 195

BATTERYBattery is located behind the front maskof bonnet and is accessible after re-moving the side shields. Battery switchis assembled as an option. Batteryswitch is located on the right hand sideof engine compartment.

If the tractor is out of operationfor longer period of time, it isnecessary to change the batteryat least once in three monthbecause of the battery selfdis-charging and the spacing currentof AEV warning lights breaker. Itis recommended to disconnectthe battery by means of thebattery disconnecting switch incase the tractor is put out ofaction.

BATTERY MAINTENANCECheck the electrolyte level after each charging or minimally once per 6 month.Add the electrolyte only by distilled water to be its level 5 mm above separators (A).Add water basically before operation to assure good mixing of electrolyte. Theelectrolyte density is; by charging to 1,28 g.cm -3 that corresponds to 32“ B° (in tropiccountries 1,23 g.cm -3 i.e. 27“B° ). Electrolyte might be frozen at discharged battery inwinter season and the battery will be destroyed (B). Never let battery in dischargedstatus. Clean battery terminals and grease it slightly by vaseline (every 100 hours insummer season). Farther instructions are mentioned in the battery instructionmanual.



170

ELECTRICAL INSTALLATIONThe momentary status of charging de-pends upon electrolyte density, at batte-ry properly formatted and with density1,28 g.cm-3 at fully charged status - seethe following table :

Charging status(%)

electrolyte density(g.cm-3)

100705020

fully discharged

1,281,231,201,151,12

Electrolyte density is considered at tem-perature 25“C. Measured density ishigher by 0,01 g.cm-3 at temperature de-creased by 15“C. Charge insufficientlycharged battery outside the tractor in tworegimes:1. By current 13,5 A up to status of

gassing (14,4 V).2. By current 7 A up to fully charged sta-

tus with density mentioned above.Battery can be charged only by onecurrent 7 A for the total time of chargingif the charging time is not a matter.

SAFETY REGULATIONS FOR WORKWITH BATTERY1. Safe your eyes by glasses or safety

shield. The eye stained by electrolytemust be immediately washed by clearwater for time of several minutes.Look for a first aid.

2. Electrolyte is a caustic agent. Useprotective gloves at manipulation withbattery protect the skin and coatsagainst staining. Neutralize the stain-ed areas by soap water and washthem by clean water.

3. Keep children out of battery andelectrolyte.

4. Manipulation with open flame andsmoking at battery is forbidden. Don thandle with any sparkling devicesnearby the battery.

5. Hydrogen is released from electrolyteat charging battery and this createsthe explosive mixture being mixedwith the air. The explosion might becaused by a spark created at mani-pulation with battery terminals whenthe closed charging circuit.

6. Discarded battery is ecologically dan-gerous reject. Let it scrap by specia-lists (service network).



171


A 196 A 197

ALTERNATORAlternator is located on the right handside of engine. Charging status is in-dicated by the red indicator light on theinstrument panel. Damaged indicatorlight bulb must be immediately exchang-ed at service shop.

All wires connected with the al-ternator must be disconnectedwhen repairing tractor by electricarc welding. Protect the wire"+B" against short circuit.

ALTERNATOR MAINTENANCE- Protect the alternator against penetration of water or diesel fuel when washing and

cleaning tractor.- Battery must never be disconnected at operation!- The alternator must never run without load i.e. with disconnected terminal "+B"

and connected terminal "+D". This status creates excessively high voltage ofalternator at increased engine speed and this voltage damages the alternatorelectronics.

- Never create the short circuit of any alternator connector at operation.- Alternator must not be additionally excited. Alternator electronics is damaged in

this case.- Keep the perfect electrical connection of alternator terminals and perfect alternator

ground.



172


A 198

FUSE BOXFuse box is accessible after removing ofsteering support left cover. The mainfuse box has eight polls. Farther four pollfuse box located nearby the main box isassembled at cab tractors. Fuses are ofknife type and the prescribed value ofamperage must be kept when exchang-ing fuse. In case of repeated fuse ex-change look for the authorized service.

Connection of fuses in fusebox

Pos. Fuseamperage

Protected circuit

12

3

4

5

6

7

8

9

101112

15A15A

15A

15A

15A

15A

15A

15A

15A

15A

15A

hazard lights, brake lightsacoustic horn, 30relay of startsafety switchcontrol valves of MFWD, diffe-rential lock, front PTO with in-dicator light, diff. lock relay ,3,,dashboard power, plug socket forassembly lamphigh beam head lights with in-dicator lightleft low beam head light, licenseplate lightright low beam head light, work-ing headlight with indicator lightright low beam head light, foglight with indicator lightleft low beam head light, indicatorlight for mask/roof head lightfront and rear wiper, washer,relay ,4,heating blower, relay ,5, and ,6,reserveair condition (AC compressorclutch)



173


A 201 A 202

CHECKING OF FRONT MASK HEAD-LIGHTS ADJUSTMENTAdjustment needs to be checked at eachexchange of light or bulb. Tractor muststand on horizontal ground and tiresmust be inflated to the specific pressurewhen checking on a testing wall.Basic vertical setting of mask headlightswith low beam is adjusted with - 3,5 %tolerance from basic setting (measuredat stopped tractor with shipping weight).- Distance between testing wall and

tractor headlight is 5 m.- Height of headlight (H). Dedicate 175

mm from this value and draw a linkparallel with ground on the wall.

- Recheck, eventually adjust the lightcenters with switched high beams -points (A).

Light and dark margin, at low beam ,on,,must be under the drawn link or maxi-mally on the link. The right part of thismargin is approximately 15“ upwards.The full line is valid for the left headlightand the interrupted line for the right one.

ADJUSTMENT OF FRONT MASKHEADLIGHTSAdjust the light by means of both screws(1) for vertical and horizontal directionsimultaneously - horizontally - 2“; verti-cally +1“ to -6“.Each light is adjusted separately. Bulb isexchanged from the rear part of para-bola. Slide out or remove the batterybecause of limited space.



174


A 203

CHECKING OF CAB ROOF HEADLIGHTS ADJUSTMENTAny point of illuminated surface on the left side must not be far off 30 m from fronttractor part. Headlight beams must be parallel with tractor axes.Adjust the headlights at tractor shiping weight. Front roof headlights can be used onthe road only in case, front implement is attached or machine covers maskheadlights.CAB ROOF HEADLIGHTS ADJUSTMENTCab roof headlights are adjusted by the same way as the tractor mask headlights.



175

WIRING HARNESS DIAGRAM OF TRACTOR Z 3321 - Z 73411. warning light interrupter2. warning lights (,on,, ,off,)3. multifunctional switch4. headlight switch - main, position, off5. low beam headlight switch (roof-grill)6. front headlights7. fog light8. left front headlight9. left rear light10. license number plate illumination11. seven poll socket12. front headlights13. right rear light14. right front headlight15. service brake switch16. differential lock17. differential lock valve18. MFWD switch19. MFWD valve20. PTO switch21. PTO valve22. fuel level indicator light23. fuel gauge24. parking brake indicator light25. failure indicator light26. min. air pressure indicator light27. blower28. pressure gauge29. thermometer30. lubrication indicator light31. blower32. air condition33. socket for assembly light34. front wiper

35. washer36. rear wiper37. wiper switch38. alternator39. battery switch40. starter motor41. battery42. charging indicator light43. tachometer44. key switch



176

WIRING HARNESS DIAGRAM OF TRACTOR Z 3321 - Z 7341

A 204



177

WIRING HARNESS DIAGRAM OF TRACTOR Z 3321 - Z 7341 (WITH CAB)1. left roof headlight2. right roof headlight3. heating4. rear wiper5. cab illumination6. front wiper switch7. working light (right hand side traffic)8. right rear light9. rear wiper switch10. washer11. working light (left hand side traffic)12. license number plate illumination13. left rear light14. left front headlight15. right front headlight16. front wiper17. flash beacon

A 205



178


A 206 A 207 A 208

Pos. Bulb destination Voltage Outlet Socket Note1 front headlights 12 V 45/40 W P 45t2 roof headlights 12 V 45/40 W P 45t low beam filament connected3 front combined lights:

turn signal lights 12 V 21 W BA 15sposition lights 12 V 10 W BA 15s

4 working headlight 12 V 55 W - H 35 rear combined lights

tail and brake lights 12 V 21/10 W BAY 15Dturn signal lights 12 V 21 W BA 15s

6 license number plate illumination 2x12 V 5 W S 8,57 illumination 12 V 5 W S 8,5



179

NOTE



180

NOTE



181

MAIN TECHNICAL PARAMETERSPage

Technical data of engine Z 5202, Z 6202, Z 7202, Z 7702, Z 7302 ........................ 182Main technical parameters of tractor Z 3321 ........................................................... 184Main technical parameters of tractor Z 3341 ........................................................... 190Main technical parameters of tractor Z 4321 ........................................................... 193Main technical parameters of tractor Z 4341 ........................................................... 196Main technical parameters of tractor Z 5321 ........................................................... 199Main technical parameters of tractor Z 5341 ........................................................... 202Main technical parameters of tractor Z 6321 ........................................................... 205Main technical parameters of tractor Z 6341 ........................................................... 208Main technical parameters of tractor Z 7321 ........................................................... 211Main technical parameters of tractor Z 7341 ........................................................... 214Force, power, consumption ..................................................................................... 217Tractor equipped with synchronized transmission ’ speed 30 kmph...................... 220Tractor equipped with synchronized transmission and front driving axle ’ speed40 kmph .................................................................................................................. 221Tractor equipped with synchronized transmission, Hi-Lo ’ speed 30 kmph ........... 222Tractor equipped with synchronized transmission, Hi-Lo and front drivingaxle ’ speed 40 kmph ............................................................................................. 223Tractor equipped with synchronized transmission and reversor ’ speed 30 kmph................................................................................................................................ 224Tractor equipped with synchronized transmission and reversor ’ speed 40 kmph................................................................................................................................ 225Independent PTO....................................................................................................226Front PTO ............................................................................................................... 226



182

TECHNICAL DATA OF ENGINES Z 5202, Z 6202, Z 7202, Z 7702, Z 7302Tractor model unit Z 3321/3341 Z 4321/4341 Z 5321/5341 Z 6321/6341 Z 7321/7341

Engine model Z 5202 Z 6202 Z 7202 Z 7702 Z 7302Engine type diesel, four stroke with direct fuel injectionEngine execution in line, water-cooledNumber of cylinders 3 4 4 4 4Displacement cm3 2696,5 3922 3922 3922 3922Bore x stroke mm 102x110 102x120 102x120 102x120 102x120Rated speed min-1 2200Ignition sequence 1-3-2 1-3-4-2Compression ratio 17Max. overrun min-1 2440Low idle speed min-1 700-50 700-50 700-50 700-50 700-50Engine power kW 33,1 44 47 51 58Specific fuel consumption atrated speed g.kW -1.h-1 251 245 245 245 242Engine lubrication pressure type with splashingMax. engine oil consumptionafter 100 hour running in g.kW -1.h-1 0,8 0,9Engine oil pressure at ratedspeed and oil temperature90“C MPa 0,2-0,5Minim. oil pressure at 700 RPMand oil temperature 80“C MPa 0,05Coolant temperature “C 80-95Valve gear OHVOil cleaner full flowFuel cleaner full flowInjection pump PP3M85K1e-

3143PP4M9K1e-

3065PP4M9K1e-

3066PP4M9K1e-

3137PP4M9K1e-

3149Governor RV 3M 350/1100-3303 RV 3M 350/1100-3309Nozzle DOP 160 S 430-1436



183

TECHNICAL DATA OF ENGINES Z 5202, Z 6202, Z 7202, Z 7702, Z 7302Tractor model unit Z 3321/3341 Z 4321/4341 Z 5321/5341 Z 6321/6341 Z 7321/7341

Injector opening pressure MPa 18,6-0,8Timing angle “ 25+1Valve clearance measured atcold engine- suction- exhaust

mmmm

0,25 ° 0,050,25 ° 0,05



184

MAIN TECHNICAL PARAMETERS (at tractor shipping weight)

MAIN DIMENSIONS(mm)

Tractor model ZETOR 3321WEIGHT(kg)

Front tire 6,00-16 6,50-16

Rear tire 12,4-32 12,4-32 14,9-28Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3686 3686 3686Overall width at rear standard treadsetting 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2805 2815 2810Height up to cab top (cab with cover) 2575 2585 2580Height up to steering wheel top 1860 1860 1855Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - at low-est position)

460

326

470

326

470

316Height of trailer hitch (up to mouthmiddle) 50 mm step 685-885 685-885 675-875Height of swinging draw bar (innerbottom surface of clevis ) 366 366 356Height of pick up hitch (bottom surfaceof hook) 431 431 421Height of PTO shaft 671 671 661Front wheel treadstandardsetting(for agricultural purpose)

1450

1450, 1525, 1825



185


MAIN DIMENSIONS(mm)


Front tire 7,50-16

Rear tire 12,4-32 12,4-36 13,6-36 14,9-28 16,9-28 16,9-30Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3686 3686 3686 3686 3686 3686Overall width at rear standard treadsetting 1900 1900 1900 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2830 2840 2825 2815 2820 2840Height up to cab top (cab with cover) 2595 2625 2650 2600 2615 2625Height up to steering wheel top 1870 1895 1910 1870 1860 1895Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - at low-est position)

490

326

490

380

490

403

490

316

490

340

490

376Height of trailer hitch (up to mouthmiddle) 50 mm step 685-885 739-939 762-962 675-875 699-899 735-935Height of swinging draw bar (innerbottom surface of clevis ) 366 420 443 356 380 416Height of pick up hitch (bottom surfaceof hook) 431 485 508 421 445 481Height of PTO shaft 671 725 748 661 685 721Front wheel treadstandardsetting(for agricultural purpose)

1425

1425, 1500, 1800



186


MAIN DIMENSIONS(mm)


Front tire 6,00-16 6,50-16

Rear tire 12,4-32 12,4-32 14,9-28Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1350-1800

1500

1350-1800

1500

1425-1800Wheel base 2123 2123 2123Contour turning diameter with onewheel braked 7000+500 7000+500Tread turning diameter with one wheelbraked 6600+500 6600+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3025 3030 3045

front axle 1030 1035 1035rear axle 1995 1995 2010

without cab 2725 2730 2745front axle 980 985 985rear axle 1745 1745 1760

Weight of ballast weightsfront 155 (135+20)rear 270

Water weight in rear tires 2x140 2x140 2x190



187


MAIN DIMENSIONS(mm)


Front tire 7,50-16

Rear tire 12,4-32 12,4-36 13,6-36 14,9-28 16,9-28 16,9-30Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1350-1800

1500

1350-1800

1500

1350-1800

1500

1425-1800

1500

1425-1800

1500

1425-1800Wheel base 2123 2123 2123 2123 2123 2123Contour turning diameter with onewheel braked 7000+500Tread turning diameter with one wheelbraked 6600+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3035 3045 3070 3050 3075 3085

front axle 1040 1040 1040 1040 1040 1040rear axle 1995 2005 2030 2010 2035 2045

without cab 2735 2745 2770 2750 2775 2785front axle 990 990 990 990 990 990rear axle 1745 1755 1780 1760 1785 1795

Weight of ballast weightsfront 155 (135+20)rear 270

Water weight in rear tires 2x140 2x160 2x180 2x190 2x215 2x240



188


MAIN DIMENSIONS(mm)


Front tire 6,00-16 6,50-16

Rear tire 12,4-32 12,4-32 14,9-28Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front axle with rigid knees(wheel tread1450, eventually 1425 mm) at max.speed30 kmph20 kmph

8 kmph

1120-3251510-3252240-406

1230-3001660-3002460-375

Rear axle at max. speed30 kmph20 kmph

8 kmph

2710-1703250-1703790-215

2710-1703250-1703790-215

3370-1504000-1504000-150



189


MAIN DIMENSIONS(mm)


Front tire 7,50-16

Rear tire 12,4-32 12,4-36 13,6-36 14,9-28 16,9-28 16,9-30Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front axle with rigid knees(wheel tread1450, eventually 1425 mm) at max.speed30 kmph20 kmph

8 kmph

1490-2502010-2502980-315


8 kmph

2710-1703250-1703790-215

2880-1703450-1704000-215

3230-1603870-1604000-200

3370-1504000-1504000-150

4000-1504000-1504000-150

4000-1504000-1504000-150



190


MAIN DIMENSIONS(mm)


Front tire 9,5-24 11,2-24

Rear tire 12,4-32 14,9-28 16,9-28 12,4-36 16,9-28 16,9-30Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3686 3686 3686 3686 3686 3686Overall length with hitch and frontballast weight 3956 3956 3956 3956 3956 3956Overall width at rear standard treadsetting 1945 1945 1945 1945 1945 1945Height up to muffler top(muffler with flap without spark arrestor) 2845 2845 2855 2875 2875 2885Height up to cab top (cab with cover) 2590 2585 2595 2607 2605 2630Height up to steering wheel top 1870 1865 1875 1910 1890 1910Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

379

320

379

310

379

334

405

371

405

331

405

367Height of trailer hitch (up to mouthmiddle) 50 mm step 650-850 640-840 660-860 709-909 669-869 705-905Height of swinging draw bar (innerbottom surface of clevis ) 360 350 374 411 371 407Height of pick up hitch (bottom surfaceof hook) 425 415 439 476 436 472Height of PTO shaft 665 655 679 716 676 712Front wheel treadstandardsetting(for agricultural purpose)

1500

1594, 1650, 1745, 1800

1594

1650, 1745, 1800



191


MAIN DIMENSIONS(mm)


Front tire 9,5-24 11,2-24

Rear tire 12,4-32 14,9-28 16,9-28 12,4-36 16,9-28 16,9-30Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1425-1800Wheel base 2070Contour turning diameter with onewheel braked 8700+500Tread turning diameter with one wheelbraked 8400+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3320 3350 3375 3360 3390 3400



Weight of ballast weightsfront 155+210 155+210rear 270 270




192


MAIN DIMENSIONS(mm)


Front tire 9,5-24 11,2-24

Rear tire 12,4-32 14,9-28 16,9-28 12,4-36 16,9-28 16,9-30Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front driving axle (wheel tread 15001594„mm) at max. speed30 kmph20 kmph

8 kmph

2000-2402400-2402800-300

2160-1902500-1803400-300


8 kmph

2710-1703250-1703700-215

3370-1503760-1804000-190

4000-1504000-1504000-150

2880-1703450-1704000-215

4000-1504000-1504000-150

4000-1504000-1504000-150



193


MAIN DIMENSIONS(mm)


Front tire 6,50-16 7,50-16 7,50-20

Rear tire 14,9-28 16,9-28 16,9-30 13,6-36 16,9-30 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3820 3820 3820 3820 3820 3820 3820Overall width at rear standard treadsetting 1900 1900 1900 1900 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2795 2810 2830 2850 2840 2870 2890Height up to cab top (cab with cover) 2565 2589 2625 2652 2625 2625 2660Height up to steering wheel top 1850 1865 1885 1905 1895 1915 1935Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

470

320

470

344

470

380

490

407

490

380

540

380

540

415Height of trailer hitch (up to mouthmiddle) 50 mm step 676-976 700-900 735-935 762-962 735-935 735-935 770-970Height of swinging draw bar (innerbottom surface of clevis ) 360 384 420 447 420 420 455Height of pick up hitch (bottom surfaceof hook) 425 449 485 512 485 485 520Height of PTO shaft 665 689 725 752 725 725 760Front wheel treadstandardsetting(for agricultural purpose)

1450

1375, 1450, 1525, 1825

1425

1350, 1425, 1500,1800

1425

1350, 1425, 1500,1800



194


MAIN DIMENSIONS(mm)


Front tire 6,50-16 7,50-16 7,50-20

Rear tire 14,9-28 16,9-28 16,9-30 13,6-36 16,9-30 16,9-30 16,9-34Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1425-1800

1500

1350-1800

1500

1425-1800

1500

1425-1800

Wheel base 2257 2257 2257Contour turning diameter with onewheel braked 7100+500 7100+500 7100+500Tread turning diameter with one wheelbraked 6700+500 6700+500 6700+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3110 3135 3145 3135 3150 3165 3185

front axle 1080 1080 1080 1085 1085 1100 1100rear axle 2030 2055 2065 2059 2065 2065 2085

without cab 2810 2835 2845 2835 2850 2865 2885front axle 1030 1030 1030 1035 1035 1050 1050rear axle 1780 1805 1815 1800 1815 1815 1835

Weight of ballast weightsfront 155 (135+20) 155 (135+20) 155 (135+20)rear 270 270 270 270 270 270 270

Water weight in rear tires 2x190 2x215 2x240 2x180 2x240 2x240 2x250



195


MAIN DIMENSIONS(mm)


Front tire 6,50-16 7,50-16 7,50-20

Rear tire 14,9-28 16,9-28 16,9-30 13,6-36 16,9-30 16,9-30 16,9-34Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front axle with rigid knees(wheel tread1450, eventually 1425 mm) at max.speed30 kmph20 kmph

8 kmph

1230-3001660-3002460-375

1490-2502010-2502980-315

1500-2252360-2753000-285


8 kmph

3370-1504000-1504000-150

4000-1504000-1504000-150

4000-1504000-1504000-150

3230-1603870-1604000-200

4000-1504000-1504000-150

4000-1504000-1504000-150

4000-1304000-1304000-130



196


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3820 3820 3820 3820 3820Overall length with hitch and frontballast weight 4090 4090 4090 4090 4090Overall width at rear standard treadsetting 1945 1945 1900 1945 1945Height up to muffler top(muffler with flap without spark arrestor) 2880 2900 2920 2910 2930Height up to cab top (cab with cover) 2573 2609 2639 2612 2647Height up to steering wheel top 1905 1923 1929 1925 1943Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

402

331

402

367

417

397

417

370

417

405Height of trailer hitch (up to mouthmiddle) 50 mm step 704-904 740-940 762-962 735-935 770-970Height of swinging draw bar (innerbottom surface of clevis ) 371 407 437 410 445Height of pick up hitch (bottom surfaceof hook) 436 472 502 475 510Height of PTO shaft 676 712 742 715 750Front wheel treadstandardsetting(for agricultural purpose)

1594

1650, 1745, 1800

1594

1650, 1745, 1800



197


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1500-1800

1500

1500-1800Wheel base 2204Contour turning diameter with onewheel braked 8700+500Tread turning diameter with one wheelbraked 8400+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3485 3495 3490 3505 3550

front axle 1415 1415 1425 1425 1425rear axle 2070 2080 2065 2080 2125

without cab 3185 3195 3190 3205 3250front axle 1365 1365 1375 1375 1375rear axle 1820 1830 1815 1830 1875

Weight of ballast weightsfront 155+210 155+210rear 270 270 270 270 270

Water weight in rear tires 2x215 2x240 2x180 2x240 2x250



198


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front driving axle (wheel tread 1594mm) at max. speed40 kmph30 kmph20 kmph

8 kmph

2000-2102160-1902500-1803400-300

2000-1702400-1702880-1703400-220

Rear axle at max. speed40 kmph30 kmph20 kmph

8 kmph

3400-1504000-1504000-1504000-150

3400-1504000-1504000-1504000-150

2900-1603230-1603870-1604000-200

3400-1504000-1504000-1504000-150

3400-1304000-1304000-1304000-130



199


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3820 3820 3820 3820 3820Overall width at rear standard treadsetting 1900 1900 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2820 2840 2880 2870 2890Height up to cab top (cab with cover) 2589 2625 2652 2625 2660Height up to steering wheel top 1859 1895 1925 1915 1935Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

490

344

490

380

540

407

540

380

540


1425

1425,1500,1800

1425

1425,1500,1800



200


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20


1500

1425-1800

1500

1350-1800

1500

1425-1800

1500

1425-1800

Wheel base 2257 2257Contour turning diameter with onewheel braked 7100+500 7100+500Tread turning diameter with one wheelbraked 6700+500 6700+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3140 3150 3150 3165 3185



Weight of ballast weightsfront 155 (135+20) 155 (135+20)rear 270 270 270 270 270




201


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front axle with rigid knees(wheel tread1425 mm) at max. speed30 kmph20 kmph

8 kmph

1490-2502010-2502980-315

1500-2252360-2753000-285


8 kmph

4000-1504000-1504000-150

4000-1504000-1504000-150

3230-1603870-1604000-200

4000-1504000-1504000-150

4000-1304000-1304000-130



202


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch without ballastweight 3820 3820 3820 3820 3820Overall length with hitch and withballast weight 4090 4090 4090 4090 4090Overall width at rear standard treadsetting 1945 1945 1900 1945 1945Height up to muffler top(muffler with flap without spark arrestor) 2880 2900 2920 2910 2930Height up to cab top (cab with cover) 2573 2609 2639 2612 2647Height up to steering wheel top 1905 1923 1929 1925 1943Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - at thelowest position)

402

331

402

367

417

397

417

370

417

405Height of trailer hitch (up to mouthmiddle) 50 mm step 704-904 740-940 762-962 735-935 770-970Height of swinging draw bar (innerbottom surface of clevis ) 371 407 437 410 445Height of pick up hitch (bottom surfaceof hook) 436 472 502 475 510Height of PTO shaft 676 712 742 715 750



203


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Front wheel treadstandardsetting(for agricultural purpose)

1594

1650,1745,1800

1594

1650,1745,1800Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1500-1800

1500

1500-1800Wheel base 2204 2204Contour turning diameter with onewheel braked 8700+500 8700+500Tread turning diameter with one wheelbraked 8400+500 8400+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3485 3495 3490 3505 3550



Weight of ballast weightsfront 155+210 155+210rear 270 270 270 270 270




204


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front driving axle (wheel tread 1594mm) at max. speed40 kmph30 kmph20 kmph

8 kmph

2000-2102160-1902500-1803400-300

2000-1702400-1702880-1703400-220


8 kmph

3400-1504000-1504000-1504000-150

3400-1504000-1504000-1504000-150

2900-1603230-1603870-1604000-200

3400-1504000-1504000-1504000-150

3400-1304000-1304000-1304000-130



205


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3820 3820 3820 3820 3820Overall width at rear standard treadsetting 1900 1900 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2820 2840 2880 2870 2890Height up to cab top (cab with cover) 2589 2625 2652 2625 2660Height up to steering wheel top 1859 1895 1925 1915 1935Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - at thelowest position)

490

344

490

385

540

412

540

385

540


1425

1425,1500,1800

1425

1425,1500,1800



206


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20


1500

1425-1800

1500

1350-1800

1500

1425-1800








207


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20


8 kmph

1490-2502010-2502980-315

1500-2252360-2753000-285


8 kmph

4000-1504000-1504000-150

4000-1504000-1504000-150

3230-1603870-1604000-200

4000-1504000-1504000-150

4000-1304000-1304000-130



208


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24 13,6R-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34 18,4-34 18,4-30Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch without frontballast weight 3820 3820 3820 3820 3820 3820 3820Overall length with hitch and frontballast weight 4090 4090 4090 4090 4090 4090 4090Overall width at rear standard treadsetting 1945 1945 1945 1945 1945 2000 2000Height up to muffler top(muffler with flap without spark arrestor) 2880 2900 2920 2910 2930 2950 2930Height up to cab top (cab with cover) 2573 2609 2639 2612 2647 2680 2640Height up to steering wheel top 1905 1923 1929 1925 1943 1950 1940Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - at thelowest position)

402

331

402

367

417

397

406

370

417

405

433

437

433

398Height of trailer hitch (up to mouthmiddle) 50 mm step 704-904 740-940 762-962 735-935 770-970 795-995 755-955Height of swinging draw bar (innerbottom surface of clevis ) 471 407 437 410 445 447 438Height of pick up hitch (bottom surfaceof hook) 436 472 502 475 510 542 503Height of PTO shaft 676 712 742 715 750 782 743



209


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24 13,6R-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34 18,4-34 18,4-30Front wheel treadstandardsetting(for agricultural purpose)

1594

1650,1745,1800

1594

1650,1745,1800

1583

1660,1734,1810Rear wheel treadstandardsetting by 75 mm(for agricultural purpose)

1500

1500-1800

1500

1500-1800

1500

1500-1800Wheel base 2204Contour turning diameter with onewheel braked 8700+500 8700+500 8700+500Tread turning diameter with one wheelbraked 8400+500 8400+500 8400+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 2500 3510 3505 3520 3550 3625 3605

front axle 1415 1415 1425 1425 1425 1475 1475rear axle 2085 2095 2080 2095 2125 2125 2130

without cab 3200 3210 3205 3220 3250 3325 3305front axle 1365 1365 1375 1375 1375 1425 1425rear axle 1835 1845 1830 1845 1875 1900 1880

Weight of ballast weightsfront 155+210 155+210 155+210 155+210rear 270 270 270 270 270 270 270

Water weight in rear tires 2x215 2x240 2x180 2x240 2x250 2x310 2x300



210


MAIN DIMENSIONS(mm)


Front tire 11,2-24 12,4-24 13,6R-24

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34 18,4-34 18,4-30Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front driving axle (wheel tread 1594mm) at max. speed40 kmph30 kmph20 kmph

8 kmph

2000-2102160-1702500-1803400-300

2000-1702400-1702880-1703400-220

2000-1302570-1302880-1603400-160

2000-1302570-1702880-1603400-160


8 kmph

3400-1504000-1504000-1504000-150

3400-1504000-1504000-1504000-150

2900-1603230-1603870-1604000-200

3400-1504000-1504000-1504000-150

3400-1304000-1304000-1304000-130

3400-1304000-1304000-1304000-130

3400-1304000-1304000-1304000-130



211


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch 3820 3820 3820 3820 3820Overall width at rear standard treadsetting 1900 1900 1900 1900 1900Height up to muffler top(muffler with flap without spark arrestor) 2820 2840 2880 2870 2890Height up to cab top (cab with cover) 2589 2625 2652 2625 2660Height up to steering wheel top 1859 1895 1925 1915 1935Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

490

344

490

380

540

407

540

380

540


1425

1425,1500,1800

1425

1425,1500,1800



212


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20

Rear tire 16,9-28 16,9-30 13,6-36 16,9-30 16,9-34Rear wheel treadstandard 1500 1500setting by 75 mm(for agricultural purpose) 1425-1800

1350-1800 1425-1800








213


MAIN DIMENSIONS(mm)


Front tire 7,50-16 7,50-20


8 kmph

1490-2502010-2502980-315

1500-2252360-2753000-285


8 kmph

4000-1504000-1504000-150

4000-1504000-1504000-150

3230-1603870-1604000-200

4000-1504000-1504000-150

4000-1304000-1304000-130



214


MAIN DIMENSIONS(mm)


Front tire 12,4-24 13,6R24

Rear tire 13,6-36 16,9-30 16,9-34 16,9-34 18,4-30 18,4-34Main dimensions (mm)(tolerance ’ 2%)Overall length with hitch without frontballast weight 3820 3820 3820 3820 3820 3820Overall length with hitch and with frontballast weight 4090 4090 4090 4090 4090 4090Overall width at rear standard treadsetting 1945 1945 1945 1945 2000 2000Height up to muffler top(muffler with flap without spark arrestor) 2920 2910 2930 2940 2930 2950Height up to cab top (cab with cover) 2639 2612 2647 2650 2640 2680Height up to steering wheel top 1929 1925 1943 1945 1940 1960Ground clearancewithout hitches(under front axle housing)with hitches(under draw bar clevis bottom - atlowest position)

417

397

417

370

417

405

433

407

433

398

433

437Height of trailer hitch (up to mouthmiddle) 50 mm step 762-962 735-935 770-972 765-965 755-955 795-995Height of swinging draw bar (innerbottom surface of clevis ) 437 410 445 447 438 477Height of pick up hitch (bottom surfaceof hook) 502 475 510 512 503 542Height of PTO shaft 742 715 750 752 743 782



215


MAIN DIMENSIONS(mm)


Front tire 12,4-24 13,6R24

Rear tire 13,6-36 16,9-30 16,9-34 16,9-34 18,4-30 18,4-34Front wheel treadstandardsetting(for agricultural purpose)

1594

1650,1745,1800

1583

1660,1734,1810Rear wheel treadstandard 1500 1500 1500setting by 75 mm(for agricultural purpose) 1500-1800 1500-1800Wheel base 2204 2204Contour turning diameter with onewheel braked 8700+500 8700+500Tread turning diameter with one wheelbraked 8400+500 8400+500Weights (kg) - standardTolerance ’ 5%)Tractor shipping weightwith cab 3515 3530 3560 3585 3615 3635



Weight of ballast weightsfront 155+210 155+210rear 270 270 270 270 270 270




216


MAIN DIMENSIONS(mm)


Front tire 12,4-24 13,6R24

Rear tire 13,6-36 16,9-30 16,9-34 16,9-34 18,4-30 18,4-34Max. allowed axle loads (kg) - infla-tion pressure (kPa)Front driving axle (wheel tread 1594mm) at max. speed40 kmph30 kmph20 kmph

8 kmph

2000-2102400-1702880-1703400-210

2000-1302570-1302880-1603400-160


8 kmph

2900-1603230-1603870-1604000-200

3400-1504000-1504000-1504000-150

3400-1304000-1304000-1304000-130

3400-1304000-1304000-1304000-130

3400-1304000-1304000-1304000-130

3400-1304000-1304000-1304000-130



217


FORCE, POWER, CONSUMPTION 3321 3341 Z 4321 Z 4341Forces (kN)tolerance ° 5%Max. pulling force in swinging draw bar, measured onconcrete, tractor shipping weight with ballast weight,slippage 15%:with cabwithout cab

26,3824,17

31,4529,15

27,1124,90

32,6030,30

Max. pulling force in pick up hitch, tractor ship pingweight with ballast weight, and water in rear tire:with cabwithout cab

29,927,7

35,1232,83

30,7928,58

36,4234,13

Lifting force in lower draft link balls of three point hitchwithin the whole lifting range at 90% max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

19,928-

19,928-

19,92836

-2836

Lifting force in lower draft link balls of three point hitchfixed within the whole range at max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

2231-

2231-

2231-

2231-

Max. lifting force in lower draft link balls of three pointhitch at max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

2433,8

-

2433,8

-

2433,843,5

-33,843,5

Power and consumption (kW, g.kW -1.h-1)PTO power at engine rated speed and shifted 540PTO RPM 29,9 (28,7) 29,9 (28,7) 40,3 (38,7) 40,3 (38,7)Specific fuel consumption at above mentioned power 275,4 275,4 267,6 267,6Power and consumption is taken after 100 hour running in. Value in brackets is valid for engine without running in and is forinformation only.



218


FORCE, POWER, CONSUMPTION Z 5321 Z 5341 Z 6321 Z 6341Forces (kN)tolerance ° 5%Max. pulling force in swinging draw bar, on concrete,tractor shipping weight with ballast weight, slippage15%:with cabwithout cab

27,1124,91

32,6030,30

27,2225,02

33,1730,88

Max. pulling force in pick up hitch, tractor shippingweight with ballast weight, and water in rear tire:with cabwithout cab

30,7928,60

36,4234,12

30,9028,70

37,9135,62

Lifting force in lower draft link balls of three point hitchwithin the whole range at 90% max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

-2836

-2836

-2836

-2836

Lifting force in lower draft link balls of three point hitchwithin the whole range at max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

-31,039,9

-31,039,9

-31,039,9

-31,039,9


-33,843,5

-33,843,5

-33,843,5

-33,843,5

Power and consumption (kW, g.kW -1.h-1)PTO power at engine rated speed and shifted 540PTO RPM 43 (41,28) 43 (41,28) 46,8 (44,9) 46,8 (44,9)Specific fuel consumption at above mentioned power 267,3 267,3 268,9 266,9Power and consumption is taken after 100 hour running in. Value in brackets is valid for engine without running in and is forinformation only.



219


FORCE, POWER, CONSUMPTION Z 7321 Z 7341Forces (kN)tolerance ° 5%Max. pulling force in swinging draw bar, measured onconcrete, tractor shipping weight with ballast weight,slippage 15%:with cabwithout cab

27,3025,09

33,2530,95

Max. pulling force in pick up hitch, tractor shippingweight with ballast weight, and water in rear tire:with cabwithout cab

30,9828,77

37,9935,70

Lifting force in lower draft link balls of three point hitchwithin the whole lifting range at 90% max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

-2836

-2836

Lifting force in lower draft link balls of three point hitchfixed within the whole range at max. pressure:without lift assisting cylinder (kN)with one lift assisting cylinder (kN)with two lift assisting cylinders (kN)

-31,039,9

-31,039,9


-33,843,5

-33,843,5

Power and consumption (kW, g.kW -1.h-1)PTO power at engine rated speed and shifted 1000PTO RPM 53,3 (51,17) 53,3 (51,17)Specific fuel consumption at above mentioned power 263 263Power and consumption is taken after 100 hour running in. Value in brackets is valid forengine without running in and is for information only.



220

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION - SPEED 30 kmph (valid for allZetor super models)

Shiftedgear

Ground PTOspeed(RPM)

Tractor travel speed (kmph) at rated engine speed and tire dimension

14,9-28 16,9-28 16,9-30 16,9-34 13,6-36 18,4-30 18,4-341 289,3 5,51 5,77 5,99 6,42 6,16 6,20 6,632 405,6 7,73 8,09 8,39 8,99 8,63 8,67 9,303 527,5 10,05 10,52 10,91 11,70 11,23 11,30 12,094 847,4 16,14 16,89 17,53 18,79 18,04 18,16 19,425 1344,4 25,61 26,80 27,82 29,81 28,62 28,81 30,821L 289,3 1,41 1,48 1,53 1,64 1,58 1,59 1,702L 405,6 1,98 2,07 2,15 2,30 2,21 2,22 2,383L 527,5 2,57 2,69 2,79 2,99 2,87 2,89 3,094L 847,4 4,13 4,32 4,49 4,81 4,62 4,65 4,975L 1344,4 6,55 6,86 7,12 7,63 7,32 7,37 7,88R -393,7 7,50 7,85 8,14 8,73 8,38 8,44 9,02RL -393,7 1,92 2,01 2,08 2,23 2,14 2,16 2,31

L - reduction, R - reverse gear



221

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION AND FRONT DRIVING AXLE- SPEED 40 kmph (valid for Z 4341, Z 5341, Z 6341, Z 7341)

Shiftedgear



18,4-30 18,4-34 16,9-28 16,9-30 16,9-34 13,6-361 289,3 7,48 8,00 6,96 7,22 7,74 7,432 405,6 10,49 11,21 9,76 10,12 10,85 10,413 527,5 13,64 14,58 12,69 13,16 14,11 13,544 847,4 21,91 23,43 20,39 21,15 22,67 21,755 1344,4 34,76 37,17 32,34 33,55 35,96 34,511L 289,3 1,91 2,05 1,78 1,85 1,98 1,902L 405,6 2,68 2,87 2,50 2,59 2,78 2,663L 527,5 3,49 3,73 3,25 3,37 3,61 3,464L 847,4 5,60 5,99 5,21 5,41 5,80 5,575L 1344,4 8,89 9,51 8,27 8,58 9,20 8,83R -393,7 10,18 10,88 9,47 9,82 10,53 10,11RL -393,7 2,60 2,78 2,42 2,51 2,69 2,59




222

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION AND Hi-Lo - SPEED 30kmph (valid for all Zetor super models)

Shiftedgear



14,9-28 16,9-28 16,9-30 16,9-34 13,6-36 18,4-30 18,4-341 289,3 5,51 5,77 5,99 6,42 6,16 6,20 6,632 405,6 7,73 8,09 8,39 8,99 8,63 8,69 9,303 527,5 10,05 10,52 10,91 11,70 11,23 11,30 12,094 847,4 16,14 16,89 17,53 18,79 18,04 18,16 19,425 1344,4 25,61 26,80 27,82 29,81 28,62 28,81 30,821L 289,3 1,41 1,48 1,53 1,64 1,58 1,59 1,702L 405,6 1,98 2,07 2,15 2,30 2,21 2,22 2,383L 527,5 2,57 2,69 2,79 2,99 2,87 2,89 3,094L 847,4 4,13 4,32 4,49 4,81 4,62 4,65 4,975L 1344,4 6,55 6,86 7,12 7,63 7,32 7,37 7,881M 220,4 4,20 4,39 4,56 4,89 4,69 4,72 5,052M 309,0 5,89 6,16 6,39 6,85 6,58 6,62 7,083M 401,8 7,65 8,01 8,31 8,91 8,55 8,61 9,214M 645,5 12,30 12,87 13,36 14,31 13,74 13,83 14,795M 1024,1 19,51 20,42 21,19 22,71 21,80 21,95 23,471LM 220,4 1,07 1,12 1,17 1,25 1,20 1,21 1,292LM 309,0 1,51 1,58 1,64 1,75 1,68 1,69 1,813LM 401,8 1,96 2,05 2,13 2,28 2,19 2,20 2,364LM 645,5 3,15 3,29 3,42 3,66 3,52 3,54 3,785LM 1024,1 4,99 5,22 5,42 5,81 5,58 5,61 6,00R - 393,7 7,50 7,85 8,14 8,73 8,38 8,44 9,02RL - 393,7 1,92 2,01 2,08 2,23 2,14 2,16 2,31RM - 299,8 5,71 5,98 6,20 6,65 6,38 6,43 6,87RLM - 299,8 1,45 1,53 1,59 1,70 1,63 1,64 1,76

L - reduction, M - Hi-Lo, R - reverse gear



223

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION, FRONT DRIVING AXLEAND Hi-Lo - SPEED 40 kmph (valid for Z 4341, Z 5341, Z 6341, Z 7341)

Shiftedgear



18,4-30 18,4-34 16,9-28 16,9-30 16,9-34 13,6-361 289,3 7,48 8,00 6,96 7,22 7,74 7,432 405,6 10,49 11,21 9,76 10,12 10,85 10,413 527,5 13,64 14,58 12,69 13,16 14,11 13,544 847,4 21,91 23,43 20,39 21,15 22,67 21,755 1344,4 34,76 37,17 32,34 33,55 35,96 34,511L 289,3 1,91 2,05 1,78 1,85 1,98 1,902L 405,6 2,68 2,87 2,50 2,59 2,78 2,663L 527,5 3,49 3,73 3,25 3,37 3,61 3,464L 847,4 5,60 5,99 5,21 5,41 5,80 5,575L 1344,4 8,89 9,51 8,27 8,58 9,20 8,831M 220,4 5,70 6,09 5,30 5,50 5,90 5,662M 309,0 7,99 8,54 7,43 7,71 8,26 7,933M 401,8 10,39 11,11 9,67 10,03 10,75 10,314M 645,5 16,69 17,85 15,53 16,11 17,27 16,575M 1024,1 26,47 28,31 24,64 25,56 27,39 26,291LM 220,4 1,46 1,56 1,36 1,41 1,51 1,452LM 309,0 2,04 2,19 1,90 1,97 2,11 2,033LM 401,8 2,66 2,84 2,47 2,56 2,75 2,644LM 645,5 4,27 4,57 3,97 4,12 4,42 4,245LM 1024,1 6,77 7,24 6,30 6,54 7,01 6,73R -393,7 10,18 10,88 9,47 9,82 10,53 10,11RL -393,7 2,60 2,78 2,42 2,51 2,69 2,59RM -299,8 7,75 8,29 7,21 7,48 8,02 7,70RLM -299,8 1,98 2,12 1,85 1,91 2,05 1,97

L - reduction, M - Hi-Lo, R - reverse gear



224

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION AND REVERSOR - SPEED30 kmph (valid for all Zetor super model)

Shiftedgear



14,9-28 16,9-28 16,9-30 16,9-34 13,6-36 18,4-30 18,4-341 289,3 5,51 5,77 5,99 6,42 6,16 6,20 6,632 405,6 7,73 8,09 8,39 8,99 8,63 8,69 9,303 527,5 10,05 10,52 10,91 11,70 11,23 11,30 12,094 847,4 16,14 16,89 17,53 18,79 18,04 18,16 19,425 1344,4 25,61 26,80 27,80 29,81 28,62 28,81 30,821L 289,3 1,41 1,48 1,53 1,64 1,58 1,59 1,702L 405,6 1,98 2,07 2,15 2,30 2,21 2,22 2,383L 527,5 2,57 2,69 2,79 2,99 2,87 2,89 3,094L 847,4 4,13 4,32 4,49 4,81 4,62 4,65 4,975L 1344,4 6,55 6,86 7,12 7,63 7,32 7,37 7,881R -317,6 6,05 6,33 6,57 7,04 6,76 6,81 7,282R -445,2 8,84 8,88 9,21 9,87 9,47 9,54 10,203R -578,9 11,03 11,55 11,98 12,84 12,32 12,41 13,274R -930,1 17,72 18,55 19,24 20,63 19,80 19,93 21,325R -1475,6 28,11 29,43 30,53 32,72 31,41 31,63 33,821RL -317,6 1,55 1,62 1,68 1,80 1,73 1,74 1,862RL -445,2 2,17 2,27 2,36 2,53 2,42 2,44 2,613RL -578,9 2,82 2,95 3,06 3,28 3,15 3,17 3,394RL -930,1 4,53 4,75 4,92 5,28 5,06 5,10 5,455RL -1475,6 7,19 7,53 7,81 8,37 8,03 8,09 8,65




225

TRACTOR EQUIPPED WITH SYNCHRONIZED TRANSMISSION, FRONT DRIVING AXLEAND REVERSOR - SPEED 40 kmph (valid for Z 4341, Z 5341, Z 6341, Z 7341)

Shifted gear Ground PTOspeed(RPM)


18,4-30 18,4-34 16,9-28 16,9-30 16,9-34 13,6-361 289,3 7,48 8,00 6,96 7,22 7,74 7,432 405,6 10,49 11,21 9,76 10,12 10,85 10,413 527,5 13,64 14,58 12,69 13,16 14,11 13,544 847,4 21,91 23,43 20,39 21,15 22,67 21,755 1344,4 34,76 37,17 32,34 33,55 35,96 34,511L 289,3 1,91 2,05 1,78 1,85 1,98 1,902L 405,6 2,68 2,87 2,50 2,59 2,78 2,663L 527,5 3,49 3,73 3,25 3,37 3,61 3,464L 847,4 5,60 5,99 5,21 5,41 5,80 5,575L 1344,4 8,89 9,51 8,27 8,58 9,20 8,831R -317,6 8,21 8,78 7,64 7,93 8,50 8,152R -445,2 11,51 12,31 10,71 11,11 11,91 11,433R -578,9 14,97 16,01 13,93 14,45 15,49 14,864R -930,1 24,05 15,72 22,38 23,21 24,88 23,885R -1475,6 38,15 40,80 35,50 36,83 39,48 37,891RL -317,6 2,10 2,25 1,95 2,03 2,17 2,092RL -445,2 2,94 3,15 2,74 2,84 3,05 2,923RL -578,9 3,83 4,09 3,56 3,70 3,96 3,804RL -930,1 6,15 6,58 5,72 5,94 6,36 6,115RL -1475,6 9,76 10,44 9,08 9,42 10,10 9,69




226

REAR INDEPENDENT PTOGear ratio PTO shaft speed/engine speed

RPMPTO shaft speed/engine speed

RPM48/13 540/1994 596/220041/20 1000/2050 1073/2200

FRONT PTOGear ratio PTO shaft speed/engine speed

RPMPTO shaft speed/engine speed

RPM40/22 1000/1818 1210/2200



227

NOTE



228

NOTE



229

NOTE



230

NOTE



231

NOTE



232

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Issue: 2 - 2000 - 2000Publication No.: 22.22.12.342ZETOR a.s., BRNOTrnkova 111632 00 BRNOCzech republic



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