Operating weightDifferential Steering (DS)

LGP arrangement 18 110 kgXL arrangement 16 190 kg

Finger Tip Control (FTC)LGP arrangement 12 220 kgXL arrangement 15 520 kg

Cat® 3126B engineNet power 108 kW/145 hpGross power 127 kW/170 hp

Blade capacityLGP – VPAT arrangement 3.16 m3

XL – VPAT arrangement 3.18 m3

XL – SU arrangement 4.28 m3

D6N XL/LGPTrack-Type Tractor

®

Engineered to excel on the most demanding work sites. Combining power, rugged componentsand superior balance, the versatile D6N is designed for tough working conditions. It keeps material moving with the reliability and durability you expect from Caterpillarmachines.

Power Turn Differential SteeringPower turn is supplied withCaterpillar’s proven DifferentialSteering system. This dependablesystem maintains power and traction toboth tracks while turning. Simultaneouscontrol of speed, direction and steeringwith the tiller bar controller deliversmaximum production. pg. 6

Work ToolsCaterpillar offers a variety of bladedesigns and other work tools to tacklevirtually any job quickly and efficiently.pg. 14

2

D6N Track-Type TractorExcellent response and control with Finger Tip Control deliver productivity and versatility for any job.

Power TrainThe large displacement, 3126BCaterpillar® engine features anelectronic direct injection fuel system to maximize performance and providethe power you need to maximizeproduction. The 3126B HEUI meets EU Stage II emission regulations.pg. 4

UndercarriageElevated sprocket design isolates the final drives from ground inducedimpacts for excellent component life.Rugged design and proven structuralmanufacturing assure outstandingdurability. The XL or LGP configura-tions allow you to match the machine to specific applications. pg. 12

Drive TrainRugged, durable and reliablecomponents deliver smooth, responsivepower and lasting reliability. pg. 5

ServiceabilityThe time between PM service intervalshas been increased allowing moreuptime. All major components, filters,and lube points are easily accessible and modular in design. The updatedEMS III machine monitoring systemhas increased diagnostic capabilities.pg. 13

✔ ✔

✔

New feature✔

3

StylingModern styling with rounded cornersand tapered engine enclosures provideexcellent visibility. Robust sheet metalexterior and heavy steel access doorpanels and guards are easily accessibleand durable. pg. 10

StructureCast iron and heavy steel plates arewelded to insure a rigid one piece caseand frame structure. Bolted softmounted cab supports reduce soundlevels and vibration. Fuel and oil tankrubber isolation mounts eliminatevibration and reduce stress. pg. 11

Total Customer SupportYour Cat dealer offers a wide range ofservices that can be set up with acustomer support agreement. The dealercan customize a plan for you from PMservice to total machine maintenance,allowing you to optimize your return oninvestment. pg. 15

Operator’s StationState of the art operator’s station hasreduced sound levels, lower cabvibrations and good visibility. The(optional) Caterpillar comfort series airsuspension seat helps to reduce operatorfatigue. Cab and air conditioning arenow standard. pg. 8

✔ ✔ ✔

4

Power Train3126B HEUITM meets EU Stage II emission regulations and offers excellent performancelevels. Differential Steering provides power turn capability and smooth steering control.Auto-shift and Auto-kickdown deliver maximum machine productivity.

Cat 3126B HEUI Engine. Caterpillarelectronic engines meet worldwideemission requirements for the EU Stage II regulations. With the HEUIFuel system, injection pressure isindependent of engine speed andprovides maximum fuel deliveryefficiency with low emissions. The Cat 3126B engines are equippedwith an electronic air inlet heater. This warms the air in the air inletmanifold for easier starting and reduceswhite smoke on cold starts. Machineswill automatically activate the timed airinlet heater prior to engine startup.

Turbocharged and Aftercooled.A wellmatched turbocharger and air-to-air aftercooler results in higherpower while keeping rpm steady andexhaust temperatures low.

Torque Rise. The direct injectedelectronic fuel system provides acontrolled fuel delivery increase as the engine lugs back from rated speed.This results in increased horsepowerabove rated power. A combination ofincreased torque rise and maximumhorsepower improves response,provides greater drawbar pull and fasterdozing cycles. The 127 kW (170 hp)maximum flywheel power occurs at1600 rpm when power is needed duringsevere applications.■ Rated flywheel power 108 kW

(145 hp).■ Maximum flywheel power 127 kW

(170 hp).

3126B Engine Features. 3126B majorfeatures include:■ Increased power to 108 kW (145 hp)

on both the differential steering andFTC configurations for increasedperformance.

■ 70 percent net torque rise on the D6Ndifferential steering machines.

■ Large displacement electronic enginewith lower emissions and good coldstart capability.

■ Power train to engine link withelectronic controlled throttle shifting.

■ New Poly Vee serpentine engine fanbelt with auto tension featureeliminates the traditional three to fourbelt system.

■ Extended oil and engine filter changeintervals up to 500 hours after break-in.

■ ATAAC cooling system.■ Multiple Row Modular (IMRM)

Radiator is less subject to pluggingdue to a unique radiator fin designwhich provides excellent heat transfercapability.

1200 1400 1600 1800 2000 2200 2400

104

119

134

89

75

D6N Rated Flywheel Horsepower

Engine rpm

kW

{ }

127 kW

108 kW

WorkingRange

5

Drive TrainRugged, durable and reliable components deliver smooth, responsive power and lasting reliability.

Torque Converter.The D6N single stagetorque converter efficiently responds tochanging load conditions by providingtorque multiplication, thereforeincreasing drawbar power. It alsoprovides protection to the drive traincomponents by preventing shock loadsfrom heavy dozing applications. Thistorque converter is efficiently matchedto the power train components andprovides the superior performance youneed.

Auto-Shift/Auto-Kickdown. Auto-shiftallows the operator to pre-select aforward and reverse gear for easy,efficient directional changes. Auto-shiftsettings include:■ First forward to second reverse.■ Second forward to second reverse.■ Second forward to first reverse.

Auto-kickdown allows the transmissionto automatically downshift whensignificant load increases are detected.

Transmission. The proven planetarypowershift transmission features threespeeds forward and three speeds reverseand utilizes large diameter, highcapacity, oil cooled clutches. To maximize the life of the transmission,the planetary design distributes loadsand stresses over multiple gears.■ Controlled throttle shifting regulates

engine speed during high-energydirectional shifts for smootheroperation and longer component life.

■ The transmission and bevel gear setare modular by design, and easilyslide into the machine’s rear case,even with the ripper installed.

■ Forced oil flow lubricates and coolsclutch packs to provide maximumclutch life.

Steering Clutch and Brakes. Oil cooled,hydraulically actuated, large diameterplates and clutch discs provide highertorque capacity and increased servicelife.

Elevated Final Drive. Final drives areisolated from ground and work toolinduced impact loads for extendedpower train life.

Electronic Steering and TransmissionControls. The D6N offers bothDifferential Steering and Finger TipControls for steering. Both systemsdeliver the control the operators needfor all applications. Soft touch buttonslocated on the steering controls shift theelectronically controlled transmission.

Electronic Clutch Pressure Control.The D6N has an additional transmissionshifting feature for added performanceand operator comfort – the ElectronicClutch Pressure Control (ECPC). This unique feature provides smoothershifting by regulating and modulatingthe individual clutches based on currentoperating conditions.

Power Turn Differential SteeringA D6N equipped with differential steering maintains power to both tracks while turning. Operators have control of machine speed, direction and steering with the tiller bar controller, while maximizing production.

6

Tiller Bar Control System. The tiller barcontrol system allows for simultaneouscomfortable, one-handed steering,direction and transmission control.■ The differential steering tiller bar has

easy touch shift buttons for upshiftsand downshifts.

■ The tiller bar is easily pushed forwardto steer the tractor to the left andpulled backwards to steer the tractorto the right.

■ The more the tiller bar is moved, the tighter the turn.

■ To change machine direction,operators rotate the tiller barclockwise for forward or counter-clockwise for reverse. Neutral trans-mission position is in the middlebetween the two.

■ Low tiller bar efforts assure operatorcomfort during long shifts.

Power Turn with Differential Steering.With differential steering, large bladeloads can be smoothly maneuveredthroughout the turn. The operatormaintains precise control on slopes,around buildings, bridge abutments,trees or other obstacles.■ Differential Steering has the ability to

work in tight areas by providing a“Best in Class” tight turning radius.

■ Steering modulation is finely tunedfor precise control in all turningapplications.

■ Regardless of ground conditions,steering is consistent because poweris maintained to both tracks duringoperation.

Differential Steering System. A planetary differential turns themachine by speeding up one track andslowing the other while maintaining fullpower to both. The differential steeringsystem consists of:■ Three planetary gear sets.■ A dedicated variable-displacement

hydraulic pump.■ A bi-directional, fixed-displacement

steering motor.■ Heavy-duty steering drive gears.■ Two planetary gear sets (steering and

drive) make up the dual differential.■ A third planetary gear set, the

equalizing planetary, resides in themain case and provide a maximum4.0 mc/h speed difference betweentracks.

Operation. When moving straightahead, power flows through thetransmission pinion and bevel gear intothe dual differential, transmitting equal,uninterrupted power to each final drive.While turning, power is shifted to the outboard track speeding it up. The inboard track slows down toaccommodate a tighter turning radius.Forward ground speed remains the samethroughout the turn.

7

1 Operator’s Station. State of the art operator’sstation has reduced sound levels, lower cabvibration, and increased glass area.

2 Steering Control. Differential SteeringTiller Bar control system and the optionalFinger Tip Control (FTC) steering systemprovide simultaneous one handed steeringand transmission control.

3 Differential Steering Motor. Bidirectionalhydraulic steering motor activates the dualdifferential, which increases or decreases the speed of individual tracks. Slowing onetrack and increasing the speed of the othertrack achieves a smooth power turn.

4 Powershift Transmission. Provenplanetary design provides fastsmooth speed changes whiledistributing loads over multiplegears for long life.

5 Final Drive. Caterpillar elevatedfinal drives provide isolation fromground or work tool impact loads,extending service life.

6 Brake Assembly. Oil cooled largediameter brake disc provide longservice life.

7 Engine. Caterpillar 3126B HEUIengine meets EU Stage II emissionregulations.

8 Radiator. Improved Multiple RowModular (IMRM) radiator is lesssubject to plugging and providesexcellent heat transfer.

9 Torque Converter. Efficient torqueconverter provides torque multi-plication for increased drawbar pulland protects the drive train fromshock loads.

1

2

34

5

8

96 7

8

Operator StationState of the art operator’s station has reduced sound levels, lower cab vibrations and excellent visibility. The (optional) Caterpillar comfort series air suspension seat helps reduce operator fatigue. Cab and air conditioning are now offered as standard.

Cab. The cab incorporates large glass window and door panels.This allows for excellent visibility to the blade, rear and sidesof the machine. New door and window seal design allows fora fully pressurized dust free cab. Low acoustic headlinermaterial, and sound suppression foam panels reduce soundlevels to below 76 dB(A) when measured per ISO 6394:1998.

The cooling system is now incorporated into the cab structureproviding good visibility to the rear of the machine. Individualwindshield wiper controls are located in the front section ofthe headliner. The new design is spacious and comfortable topromote shift-long productivity.

9

Cat C500 Comfort Suspension Seat.Caterpillar C500 Comfort Series AirSuspended Seat is ergonomicallydesigned to support the operator in allsite conditions (optional).• Seat is fully adjustable for maximum

operator comfort, support andreduced operator fatigue.

• Seat cushion reduces pressure on thelower back and thighs while allowingunrestricted arm and leg movement.

• A standard lumbar adjustmentimproves lower back comfort.

Dash. The instrument panel, with easyto read analog gauges and warninglamps, keeps the operator aware of anypotential problems. All gauges andreadouts are easily visible in directsunlight. HVAC controls and vents areconveniently located on the dash toprovide climate control for the operator.Auto-shift and Auto-kickdown controlsare located within easy reach of theoperator. New footpads keep theoperator stable and comfortable duringside slope applications.

Ergonomic Work Tool Controls.Ergonomically shaped blade and rippercontrols have improved lever efforts forreduced operator fatigue. The voltageconverter provides two 12 volt powersupplies.

Electronic Monitoring System (EMS-III).EMS III provides the operator instantfeedback on machine conditions andrecords performance data to helpdiagnose problems. It has flashablememory allowing system upgrades, asnew technology and electronics becomeavailable. This system is compatiblewith Cat ET and CMS service tools.EMS includes the following gauges and readouts:■ Fuel level gauge.■ Hydraulic oil temperature gauge.■ Engine coolant temperature gauge.■ Power train oil temperature gauge.■ Engine oil pressure indicator.■ Engine speed digital readout.■ Transmission gear indicator.

Finger Tip Control (FTC). Located to the operator’s left, finger tip controlsprovide one-handed operation. Theycontrol steering, machine direction andgear selection.■ Finger tip levers allow operators to

work with precision in close areas.■ Push buttons control three speed

forward/reverse gear selection.

10

StylingModern styling with rounded shapes and tapered hood enhances operator visibility. The N-Series combines eye-catching styling with solid, reliable performance.

Styling. New styling with roundedmachine shapes offers excellentvisibility, accessibility andserviceability.■ Durable, heavy steel door panel

covers.■ Pre-cleaner is below the hood for

good visibility.■ Engine enclosure is tapered as it

reaches the cab.■ Large amount of glass area in cab.■ Controls are ergonomic for easier

operation and better efficiency.

Accessibility and Serviceability.■ Hinged engine doors to increase

engine and service access.■ Remote-mounted filters located

within easy reach during PM service. ■ Air pre-cleaner filter condition

monitor located in the cab for highvisibility.

■ Redesigned fuel tank for easierinternal cleaning.

■ Fast fuel tank provision added(attachment).

■ Larger service panel doors.■ Diagnostic test ports added for quick

troubleshooting.

Quality and Reliability.■ Doubled 4 mm sheet metal on the

side service access panels and rearguard.

■ Stamped, rounded sheet metal cornersadd strength.

■ Rubber isolation mounted fuel and oiltanks eliminate tank vibration andreduce potential stress fractures.

■ Heavy duty reinforced radiator guardis now standard.

■ Heavy duty rear guard for ripper.■ Clipped seals provide protection from

dust and moisture for:– rear enclosure– door openings– between ROPS post and rear

enclosure

11

StructureEngineered and built to give solid support in the most demanding applications. Designed to last throughout the extended service life of the D6N.

Frame and Castings. The D6N case andframes are built to absorb high impactshock loads and torsional forces.Castings are strategically located withinthe frame to add additional strength.Caterpillar uses robotic weldingtechniques in the assembly of the caseand frames. This insures quality andreliability throughout the structure.■ High strength steel mainframe resists

impact shock loads.■ Computer-aided finite element

analysis is used to evaluate andensure durability.

■ Full scale structural testing to testintegrity of the structures.

■ Robotic welding provides deeppenetration and consistency for long life.

■ Precision top level machining forperfect alignment of bores andsurfaces.

■ Pivot shaft and pinned equalizer barto maintain track roller framealignment.

Equalizer Bar. The pinned equalizer bargives the roller frames the ability tooscillate up or down to better matchground contours while providingmaximum traction and operatorcomfort.

Roll Over Protection Systems. N-Seriescab supports have been stiffened. Stiffer ROPS supports result in lowernoise and vibration in the cab, providingthe operator increased comfort.

Rotating Bushing Track. RotatingBushing Track is designed to extendsystem life and lower costs in highlyabrasive low to moderate impactapplications.

RBT features bushings which rotatewhen in contact with the sprocket,greatly reducing bushing and sprocketwear. This design eliminates bushingturn maintenance expense and sprocketreplacement costs.

Rotating Bushing Track is available asoptional undercarriage.

12

Elevated Final Drive.■ Isolates final drives from ground and

work tool induced impact loads forextended power train life.

■ Keeps sprocket teeth, bushings andfinal drives away from abrasivematerials and moisture.

■ Caterpillar uses single reductionplanetary final drives in the D6Nproviding long-lasting performanceand durability.

Final Drives and AssociatedComponents.■ Final drives are raised above the work

area where moisture and abrasiveconditions can cause prematuredamage and failures.

■ Isolates them from ground-inducedimpact loads.

Undercarriage Arrangements.XL (Extra Long) arrangement■ Forward idler position provides more

track on the ground and to the front ofthe tractor. It provides optimalbalance, superior traction and bladecontrol for finish grading.

■ Long roller frame provides goodflotation in soft underfoot conditions.

LGP arrangement■ Specially designed to work in soft

and spongy conditions.■ Wide track shoes, long track frames

and a wider gauge increase trackcontact area and reduce groundpressure for excellent flotation.

Complete Guarding. Caterpillarundercarriages are designed with fulllength guarding on top of the trackroller frame. This prevents abrasivematerials from falling down on movingparts.

Roller Frames. Roller frames aretubular, to resist bending and twisting.■ Roller frames attach to the tractor by

a pivot shaft and pinned equalizer bar.■ The recoil system is sealed and

lubricated.

UndercarriageThe Caterpillar elevated sprocket undercarriage arrangements are designed for optimizedbalance and best possible performance in fine grading to heavy dozing applications.

13

ServiceabilityModular design moves Caterpillar a generation ahead in simplifying repair andmaintenance.

Product Link. This option allows thecustomer or dealer to obtain machinediagnostics and location from theiroffices. Product Link provides updateson service meter hours, machinecondition, machine location as well asintegrated mapping/route planning.

Built-in Serviceability. Less servicetime means more working time. Majorcomponents are designed as modulesand most can be removed withoutdisturbing or removing othercomponents.

Diagnostic Connector. Diagnosticconnector allows Caterpillar dealers toquickly troubleshoot the D6N or accessstored data with the use of ElectronicTechnician (Cat ET).

Ecology Drains. Ecology drains providean environmentally safer method todrain fluids. They are included on theradiator, hydraulic tank and majorpower train components.

Modular Cooling System. Individualradiator core modules are easilyserviced without major componentremoval.

Easy Engine Maintenance. Many partscan be rebuilt and are available asremanufactured components.■ Parent-metal block can be rebored

twice and dry-sleeved.■ Connecting rods can be removed

through cylinder tops.■ Camshaft followers and push rods

can be replaced without removingcamshaft.

■ Extended oil and engine filter changeintervals up to 500 hours.

Electronic Monitoring System.The D6N features a more flexiblemonitoring system that is easilyupgraded by flashing software ratherthan replacing the module, reducingparts cost. As technology changes andnew electronics and software becomeavailable, this upgraded monitoringsystem will allow the machine to beeasily updated.

14

Work Tools Cat D6N work tools are designed to provide strength and flexibility to match the machine to the job.

Caterpillar Blades. With superior mold-board and 4-cell structure design, Catbulldozer blades hold up to the toughestjob conditions. Our high-tensile strengthblades resist torsional bending anddeflection in tough applications.■ High-tensile strength, Cat DH-2TM

steel, cutting edges resist bending.■ DH-3TM steel end bits maximize

service life.

Variable Pitch Power Angle and TiltBlade (VPAT). The VPAT blade gives the operator the ability to hydraulicallyadjust the blade lift, angle and tilt fromthe operator’s station.■ Manually adjustable blade pitch for

optimum performance.■ Top corners of the blade are clipped

for better operator viewing area. (XL arrangement only).

■ C-Frame is solidly pinned to the mainframe for good blade control andeliminates blade motion due to trackoscillation or side forces.

■ C-Frame has been moved closer to the front of the machine to improvefine grading and blade control.

■ C-Frame to tractor joint is sealed and lubricated with remote lines for extended service life and quietoperation.

■ Large C-Frame tower bearings havebeen added to improve durability.

■ Lubrication points are located at allpin joints to reduce wear.

Forestry Sweeps. In forestry and landclearing applications where limbs anddebris can damage a machine, optionalsweeps are available for the N-Series.Sweeps help to shield criticalcomponents on the tractor such ashydraulic lines, exhaust stacks, cab windows and lights from damage.

Rear Counterweight. Rear counter-weights are available and can be used to help the machines balance in severeapplications such as backing up slopes or heavy angle dozing.

Winch.■ Single lever control actuates both

clutch and brake functions forexcellent operator efficiency.

■ Input clutches on PTO shaft reduceengine horsepower loss for fuelefficiency.

■ Clutch engagement and brake releaseare automatically synchronized forsmooth operation.

■ Winch components can be servicedwith winch mounted on tractor.

■ Check with your Caterpillar Dealer for winch selection details.

Drawbar. The D6N can be equippedwith a drawbar for pulling work toolssuch as:■ Disks.■ Compactors.■ Chopper wheels.■ Retrieval of other equipment.

Multi-Shank Ripper. The multi-shankparallelogram ripper lets you chooseone, two or three shanks depending onjob conditions.■ Curved or straight ripper shanks are

available.■ Excellent chassis durability in severe

drawbar applications.

Semi-Universal Blade (XL ArrangementOnly). Built for tough applications wherepenetration and blade side loading areimportant. The design of the SU blademakes it excellent for aggressive dirtpenetration and loading materials. The blade wings are designed for superior load retention.

Foldable Blade (D6N LGP ArrangementOnly). Designed to conform with the 3 m width transport limit without bladeremoval. Allows a 0.30 m section on both ends of the blade to fold into transport position.

15

Total Customer SupportYour Cat dealer offers a wide range of services that can be set up with a customer supportagreement. The dealer can customize a plan for you from PM service to total machinemaintenance, allowing you to optimize your return on investment.

Product Support. Your Cat Dealeroffers a wide range of services that canbe set up under a customer supportagreement when you purchase yourequipment. The dealer will help youchoose a plan that can cover everythingfrom the machine and attachmentselection to replacement. This will helpyou get the best return on yourinvestment.

Remanufactured Components. Savemoney with remanufactured parts. Youreceive the same warranty andreliability as new products at a costsavings of 40 to 70 percent.

Service Capability. Whether in thedealer’s fully equipped shop or in thefield, you will get trained servicetechnicians using the latest technologyand tools.

Selection. Make detailed comparisonsof the machines you are consideringbefore you buy. How long docomponents last? What is the cost ofpreventive maintenance? What is thetrue cost of lost production? Your CatDealer can give you answers to thesequestions.

Purchase. Consider the financingoptions available as well as day-to-dayoperating costs. This is also the time tolook at dealer services that can beincluded in the cost of the machine toyield lower equipment owning andoperating costs over the long run.

Operation. Improving operatingtechniques can boost your profits. YourCat Dealer has training videotapes,literature and other ideas to help youincrease productivity.

Replacement. Repair, rebuild orreplace? Your Cat Dealer can helpevaluate the cost involved so you canmake the right choice.

Maintenance. More and moreequipment buyers are planning foreffective maintenance before buyingequipment. Choose from your dealer’swide range of maintenance services atthe time of your purchase. Repairoption programs guarantee the cost ofrepairs up front. Diagnostic programssuch as Scheduled Oil Sampling andTechnical Analysis help avoidunscheduled repairs.

16 D6N Track-Type Tractor specifications

Service Refill Capacities

Liters

Fuel Tank 299

Cooling System 54

Final Drives (each) 7

Hydraulic Tank 29.5

Brakes

■ Brakes meet the standard ISO 10265 MARCH99

3126B Engine

Gross Power 127 kW/170 hp

Net Power

ISO 9249 108 kW/145 hp

EU 80/1269 108 kW/145 hp

Bore 110 mm

Stroke 127 mm

Displacement 7.2 Liters

■ Engine Ratings at 2200 rpm■ The engine is certified according to

the EU Directive 97/68/EC, Stage II■ Net power advertised is the power

available at the flywheel when theengine is equipped with fan, aircleaner, muffler and alternator.

■ No derating required up to 4600 maltitude, beyond 4600 m automaticderating occurs.

Transmission

Forward km/h

1 3.3

2 5.8

3 10.0

Reverse

1 4.0

2 7.2

3 12.3

Blades

Blade type VPAT and SU

Blade capacity and Blade width see Ripper Specifications on pg. 18.

Multi-Shank Ripper

Type Fixed Parallelogram

Beam width 2202 mm

Beam cross section 216 x 254 mm

Number of pockets 3

Winch Specifications

Winch Model PA 55

Weight 1277 kg

Winch and Bracket Length 1120 mm

Winch Case Width 975 mm

Flange Diameter 504 mm

Drum Width 330 mm

Drum Diameter 254 mm

Drum Capacity - 22 mm 88 m

Ferrule Size (O.D.x Length) 54 x 65 mm

Oil Capacity 74 Liters

Standard Undercarriage

Number Shoes Side

XL 40

LGP 46

Track Rollers/Side

XL 7

LGP 8

Width of Shoe

XL 610 mm

LGP 860 mm

Track on Ground

XL 2550 mm

LGP 3102 mm

Track Gauge

XL 1890 mm

LGP 2160 mm

Ground Contact Area

XL 3.11 m2

LGP 5.34 m2

Ground Pressure (Standard)

Finger Tip Control (FTC)

XL 49 kPa

LGP 31 kPa

Differential Steering (DS)

XL 50 kPa

LGP 33 kPa

Weights

Operating Weight Power Shift

Finger Tip Control (FTC)

XL 15 517 kg

LGP 17 222 kg

Differential Steering (DS)

XL 16 188 kg

LGP 18 107 kg

Shipping Weight

Finger Tip Control (FTC)

XL 15 185 kg

LGP 16 890 kg

Differential Steering (DS)

XL 15 856 kg

LGP 17 775 kg■ Shipping Weight includes EROPS,

A/C, lights, VPAT dozer,transmission, drawbar, engineenclosure, 3 valve hydraulics, 5% fuel and C500 Comfort Seat.

■ Operating Weight includes EROPS,A/C, lights, VPAT dozer,transmission, drawbar, engineenclosure, 3 valve hydraulics, 100% fuel, C500 Comfort Seat and operator.

XL LGPmm mm

1890 2160

2492 3022

– 3000

2960 3700

3022 3136

3083 3197

595 710

2550 3102

3740 4149

1026 1026

381 381

1057 1244

1787 2125

1176 –

2886 3000

57 57

424 538

17

Dimensions (approximate)

12

3

9

��

7

4

56

8

ROPS/FOPS

■ ROPS (Rollover Protective Structure)offered by Caterpillar for the machinemeets ROPS criteria ISO 3471-1994.

■ FOPS (Falling Object ProtectiveStructure) meets ISO 3449-1992Level II.

Sound

■ The operator sound level measuredaccording to the procedures specifiedin ISO 6394:1998 is 76 dB(A), for cab offered by Caterpillar, when properly installed andmaintained and tested with the doors and windows closed.

■ Hearing protection may be neededwhen operating with an open operatorstation and cab (when not properlymaintained or doors/windows open)for extended periods or in noisyenvironment.

■ The labeled sound power level is 109 dB(A) measured according to the test procedures and conditionsspecified in 2000/14/EC.

D6N Track-Type Tractor specifications

1 Track gauge

2 Width of tractor

With the following attachments:

Standard shoes without blade

840 mm shoes without blade

Standard shoes with VPAT blade angled 25°

3 Machine height from tip of grouser:

With the following equipment:

ROPS canopy

ROPS cab

4 Drawbar height (center of clevis)

From ground face of shoes

5 Length of track on ground

6 Length of basic tractor (with drawbar)

With the following attachments, add to basic tractor length:

Ripper

PA55 winch

VPAT blades, straight

VPAT blade, angled 25°

SU blade

7 Height over stack from tip of grouser

8 Height of grouser

9 Ground clearance from ground face of shoe (per SAE J1234)

Standard EquipmentStandard and optional equipment may vary. Consult your Caterpillar dealer for specifics.

Electrical10-amp/12-volt converter70-amp alternatorBack-up alarmDiagnostic connectorHornHour meterIntegrated front lights

Operator EnvironmentCoat hookCup holderElectronic Monitoring System (EMS III)Electronic travel speed and gear limiterEngine air cleaner service indicator in

the cabEngine RPM display/gear displayFoot pegs for slope workFour gauge clusterFTC control for Clutch and

Brake steering or Cat tiller bar for D/SMirror rear viewPower points, two 12-voltPre-start coolant level monitoring systemProduct Link readyRadio ready, 12-voltROPS/FOPS cab with integrated A/CSeat belt, retractable 76 mmStorage and literature compartmentTransmission shift points selection function

on dash

Power Train3126B HEUI Caterpillar diesel

engine with 24-volt starterAir-to-air aftercoolerAuto-dust ejector with under hood

air filter and pre-screenerAutomatic down-shift and kickdown

transmission controlCoolant, extended lifeCoolant sampling portControlled throttle shiftingDecelerating functionFan, blowerFuel/water separatorLoad compensated shiftingModular radiator (High Performance

Perforated Fins IMRM)Selectable shift pointsSingle poly-vee belt with

auto belt tensionerSteering system: Clutch and Brake

with Finger Tip Control (FTC)Three-speed planetary transmission

with torque converter

UndercarriageAdjuster, hydraulic trackCarrier rollersGuards, end track-guidingHeavy-duty sealed and lubricated tracksIdlers, lifetime lubricatedRollers, lifetime lubricated trackWider tread and taller flange idler

profile

Other Standard Equipment4600 meter altitude operation capability

without deratingCentralized remote mounted pressure

taps for easy access and diagnosticsCrankcase guardEcology drainsExtended service intervals (500 hours)Front pull deviceHinged engine doorsHinged radiator grillImplement oil filterKeyed lockable enclosuresLoad sensing hydraulicsRigid drawbarS•O•SSM taps for engine, transmission

and implement fluidsThree valve hydraulics for VPAT dozerTransmission remote pressure taps

Ripper Specifications

XL LGPmm 2202 2202

mm 216 x 254 216 x 254

mm 1090 1205

mm 392 506

3 3

mm 474 360

kN 126 126

kN 60 72

kg 1406 1406

kg 78 78

Beam width

Cross section

Ground clearance under beam (raised)

Under tip at full raise

Number of pockets (teeth)

Maximum penetration

Maximum pryout force

Maximum penetration force (VPAT blade equipped power shift)

Weight:

With three teeth

Each tooth

18 D6N Track-Type Tractor specifications

Bulldozer Specifications

6 VPAT Blade 6 SU BladeXL LGP XL

m3 3.18 3.16 4.28

mm 3274 4080 3190

mm 1195 1025 1244

mm 538 433 520

mm 822 1024 983

mm 497 598 655

kg 2372 2819 2427

Blade capacity (SAE J1265)

Blade width (over end bits)

Blade height

Digging depth

Ground clearance

Maximum tilt

Weight (without hydraulic controls)

Air conditioner less off -51.4

Alternator, brushless 0.34

Bulldozers - see Bulldozer Specifications below

Canopy -150

Heater, dash mounted for OROPS 18.5

Fan, reversible 3.7

Fast fill fuel tank 7

Lighting system, 4 lights 18.2

Rotating beacon 3.3

Sound suppression (for cab) 18

Product link 4

Protective MSS 2.5

Guards:

Crankcase, heavy duty 80

Fuel tank (for cab or canopy) 72

Guard, rear, heavy duty 5

Guiding Track XL/MS 167

Guiding Track LGP/MS 73

Guiding Guarding Track XL/HD 250

Guiding Guarding Track LGP/HD 198

Radiator, heavy duty, hinged grill 30

Sand blast grid 18

Screens and Sweeps:

Rear screen for EROPS cab 81

Rear screen for OROPS canopy 53

Sun screen 5

Sweeps EROPS 133.1

Sweeps OROPS 143.2

Hydraulics and Ripper:

Three valve for SU blade (XL) and ripper (valve itself) 0

Four valve for 6VPAT bulldozer and ripper (valve itself) 23

Ripper, parallelogram (with three straight teeth) 1406

Each optional curved tooth, replacing straight tooth 78

Seat (adjustable armrest on FTC versions only):

Air suspended C500 comfort series, cloth (for cab only) 52.4

C500 comfort series, cloth, mechanical suspended (for cab only) 53.6

C500 comfort series, vinyl, mechanical suspended 53.6

Low back, vinyl 48.7

Starting aids:

Engine coolant heater (dealer installed) 1

Heavy duty batteries 45

Priming pump 0

Track, pair, heavy duty sealed and lubricated:

XL arrangement, 40-section:

560 mm (22") MS/HD -180

560 mm (22") MS/RBT 252

560 mm (22") ES/HD 60

610 mm (24") MS/RBT -80

610 mm (24") ES/HD 160

LGP arrangement, 46-section:

710 mm (28") MS/HD -370

710 mm (28") MS/RBT -60

860 mm (34") MS/RBT 0

860 mm (34") self cleaning/HD 180

Winch and fairleads:

Winch (standard or low speed) 1276.5

Fairlead, 3 rollers 290

Fairlead, 4 rollers 320

ES: Extreme service shoesMS: Moderate service shoesHD: Heavy-duty link trackRBT: Rotating bushing track

Optional EquipmentApproximate changes in operating weights.

kg kg

D6N Track-Type Tractor

®

HEHT5498 (01/2003) hr

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© 2003 Caterpillar

Materials and specifications are subject to change without notice.Featured machines in photos may include additional equipment.

See your Caterpillar dealer for available options.