0298_712_3_sys_hy_en_144

JAGUAR 900 - 830 JAGUAR 900 - 830 PROFISTAR JAGUAR 900 - 830 SPEEDSTAR* (*with Electro-Hydraulic Ground Drive)

Technical Systems Hydraulic System

JAGUAR TIC

Jag-h 11/04

TIC JAGUAR

11/04 Jag-h

Chapter

1 Overall hydraulic system..................................................... 1-1

2 Steering hydraulics.............................................................. 2-1

3 Working hydraulics.............................................................. 3-1

4 Low-pressure hydraulics..................................................... 4-1

5 Ground drive hydraulics...................................................... 5-1

6 Float position ....................................................................... 6-1

7 Compressed-air system ...................................................... 7-1

Index................................................................................. index-1

JAGUAR TIC

Jag-h 11/04

TIC JAGUAR 1. Overall Hydraulic System

11/04 Jag-h-Kap01 1-1

1 Overall hydraulic system

1.1 Hydraulic circuit diagrams......................................... 1-4

1.1.1 JAGUAR 20/25km/h from serial no. 492 01614........ 1-4 1.1.2 JAGUAR 20/25km/h from serial no. 492 00133 � 492 01613 .................. 1-10 1.1.3 JAGUAR 20/25km/h km/h from serial no. 492 00011 � 492 00132 .................. 1-16 1.1.4 JAGUAR SPEEDSTAR/PROFISTAR with electro-hydraulic ground drive (EFA) ...................... 1-22

1.2 Valve inserts............................................................ 1-26

1.2.1 Overview of valve inserts ........................................ 1-26 1.2.2 Function of valve inserts ......................................... 1-27

1. Overall Hydraulic System JAGUAR TIC

1-2 Jag-h-Kap01 11/04

1.1 Hydraulic circuit diagrams

1.1.1

JAGUAR 20/25 km/h - from serial no. 492 01614


1-4 Jag-h-Kap01 11/04

1.1 Hydraulic circuit diagrams 1.1.1 JAGUAR 20/25km/h from serial no. 492 01614


11/04 Jag-h-Kap01 1-5

Functional changes as compared with JAGUAR 20/25 km/h from serial no. 492 00133 - 492 01613 (see 1.1.2):

- the suction arm drive motor (228) runs permanently because it is supplied with oil directly from the line header (807).

- the line header (807) has been added. - the front attachment clutch hydraulic cylinder (352) has been modified as from serial no. 1820, this

eliminates the optional one-way restrictor valve 422 for RU.

Item Designation Remark B2 Ground pressure oil pressure sensor Sensor B5 Working hydraulics oil pressure sensor Sensor Y1 4-Trac (all-wheel drive) solenoid coil 3/2 way solenoid valve Y2 Discharge door close solenoid coil 3/2 way solenoid valve Y3 Discharge door far solenoid coil 3/2 way solenoid valve Y4 Upper discharge chute slow/fast rotation solenoid coil 2-step restrictor Y5 Upper discharge chute left rotation solenoid coil 3/2 way solenoid valve Y6 Upper discharge chute right rotation solenoid coil 3/2 way solenoid valve Y7 Upper discharge chute raise solenoid coil 3/2 way solenoid valve Y8 Upper discharge chute lower solenoid coil 3/2 way solenoid valve Y9 AUTOPILOT left solenoid coil 3/2 way solenoid valve Y10 AUTOPILOT right solenoid coil 3/2 way solenoid valve Y26 Main drive solenoid coil 3/2 way solenoid valve Y29 Raise hitch solenoid coil 3/2 way solenoid valve Y30 Lower hitch solenoid coil 3/2 way solenoid valve Y60 Cover solenoid coil 3/2 way solenoid valve Y61 Sharpening stone left movement solenoid coil 3/2 way solenoid valve Y62 Sharpening stone right movement solenoid coil 3/2 way solenoid valve Y72 Additional control valve 1 � A solenoid coil 3/2 way solenoid valve Y73 Additional control valve 1 � B solenoid coil 3/2 way solenoid valve Y77 Working hydraulics circulation shut-off valve solenoid coil 2/2 way solenoid valve Y85 Raise front attachment solenoid coil 2/3 way solenoid valve (PWM) Y86 Reverse front attachment solenoid coil 3/2 way solenoid valve Y87 Lower front attachment solenoid coil 3/3 way solenoid valve (PWM) Y88 Front attachment clutch solenoid coil 3/2 way solenoid valve Y93 Additional control valve 2 � A solenoid coil 3/2 way solenoid valve Y94 Additional control valve 2 � B solenoid coil 3/2 way solenoid valve Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual value

function switch Oil level OK, switch open

Z47 Reverser drive end position actual value function switch Normally open contact Z52 Sharpening stone left movement oil pressure actual value

function switch Sharpening stone in parking position, switch open

Z53 Sharpening stone right movement oil pressure actual value function switch

Sharpening stone in parking position, switch closed

102 Pressure filter 10 µm 104 Control pressure vent plug 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 112 Return flow filter Sieve filter 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 206 Upper discharge chute rotation drive motor 160 cm³/rev. 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor See ESIS


1-6 Jag-h-Kap01 11/04

Item Designation Remark 211 Ground drive variable displacement pump See ESIS 218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm

11 cm³/rev. for JAGUAR with electronic ground drive

226 Front attachment reverser drive motor 470 cm³/rev. 228 Suction arm drive motor 50 cm³/rev. 233 Silage additive pump 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 303 Discharge door hydraulic cylinder 304 Upper discharge chute hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 317 Main drive clutch hydraulic cylinder actuated by oil pressure 323-1 Steering hydraulics cylinder 323-3 Steering hydraulics cylinder (all-wheel drive) 332 Pick-up crop guard lift hydraulic cylinder 333 Pick-up auger lift hydraulic cylinder 340 Cover hydraulic cylinder 341 Sharpening stone movement hydraulic cylinder 351 Front attachment raise/lower hydraulic cylinder 352 Front attachment clutch hydraulic cylinder new cylinder as from serial no.

1820 353 Front attachment reverse hydraulic cylinder 355 Ground drive servo control motor hydraulic cylinder 405 Orifice plate ∅ 0.6 mm 406 Orifice plate ∅ 0.8 mm 411 Orifice plate ∅ 1.8 mm 421 Front attachment engage one-way restrictor valve 422 Front attachment engage one-way restrictor valve option for RU, is dropped as from

serial no. 1820 441 Rotary coupling 442 Venturi meter 501 Working hydraulics pre-pressurization accumulator 0.75 l, pre-pressurized to 80 bar 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 511 Front attachment relief accumulator pre-pressurized to 40 bar 609 Orbitrol steering unit rotary disc valve OSPC 200 612 Front attachment load switch-over valve mechanically actuated 614 Front attachment lower flow control valve mechanically actuated 615 Ground drive direction control pressure valve mechanically actuated 616 Ground drive speed control pressure valve mechanically actuated 617 Working hydraulics pre-pressurization relief screw valve mechanically actuated 703 Working hydraulics pressure relief valve 175+15 bar, hydraulically actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 732 Non-return valve hydraulically actuated 734 Lock-up valve unit (non-return valve) hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated


11/04 Jag-h-Kap01 1-7

Item Designation Remark 738 Ground drive servo control forward/backward valve hydraulically actuated 742 Steering safety valve hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically

actuated 804 Whole crop harvesting cutterbar quick release coupling 807 Line header 901 Working hydraulics measuring point 902 Ground drive hydraulics high pressure backward measuring point 903 Ground drive hydraulics high pressure forward measuring point 908 Ground drive hydraulics control pressure forward measuring

point

909 Steering hydraulics measuring point 910 Low-pressure hydraulics measuring point Minimess port


1-8 Jag-h-Kap01 11/04

1.1.2

JAGUAR 20/25 km/h - from serial no 492 00133 � 492 01613


1-10 Jag-h-Kap01 11/04

1.1.2 JAGUAR 20/25km/h from serial no 492 00133 � 492 01613


11/04 Jag-h-Kap01 1-11

Functional changes as compared with JAGUAR 20/25 km/h from serial no. 492 00011-492 00132 (see 1.1.3):

- The ground drive control pressure shuttle valve (739) has been dropped. The line installation in this area was modified accordingly.









1-12 Jag-h-Kap01 11/04



226 Front attachment reverser drive motor 470 cm³/rev. 228 Suction arm drive motor 50 cm³/rev. 233 Silage additive pump 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 303 Discharge door hydraulic cylinder 304 Upper discharge chute hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 317 Main drive clutch hydraulic cylinder actuated by oil pressure 323-1 Steering hydraulics cylinder 323-2 Steering hydraulics cylinder (all-wheel drive) Up to serial no. 492 01019 323-3 Steering hydraulics cylinder (all-wheel drive) From serial no. 492 01020 332 Pick-up crop guard lift hydraulic cylinder 333 Pick-up auger lift hydraulic cylinder 340 Cover hydraulic cylinder 341 Sharpening stone movement hydraulic cylinder 351 Front attachment raise/lower hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 353 Front attachment reverse hydraulic cylinder 355 Ground drive servo control motor hydraulic cylinder 405 Orifice plate ∅ 0.6 mm 406 Orifice plate ∅ 0.8 mm 411 Orifice plate ∅ 1.8 mm 421 Front attachment engage one-way restrictor valve 422 Front attachment engage one-way restrictor valve optional RU 441 Rotary coupling 442 Venturi meter 501 Working hydraulics pre-pressurization accumulator 0.75 l, pre-pressurized to 80 bar 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 511 Front attachment relief accumulator pre-pressurized to 40 bar 609 Orbitrol steering unit rotary disc valve OSPC 250 up to 492 01019

OSPC 200 from 492 01020 OSPC 200 from 492 00133 USA

612 Front attachment load switch-over valve mechanically actuated 614 Front attachment lower flow control valve mechanically actuated 615 Ground drive control pressure direction valve mechanically actuated 616 Ground drive control pressure speed valve mechanically actuated 617 Working hydraulics pre-pressurization relief screw valve mechanically actuated 703 Working hydraulics pressure relief valve 175+15 bar, hydraulically actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 732 Non-return valve hydraulically actuated 734 Lock-up valve unit (non-return valve) hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated


11/04 Jag-h-Kap01 1-13

Item Designation Remark 738 Ground drive servo control forward/backward valve hydraulically actuated 742 Steering safety valve hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically

actuated 804 Whole crop harvesting cutterbar quick release coupling 901 Working hydraulics measuring point 902 Ground drive hydraulics high pressure backward measuring point 903 Ground drive hydraulics high pressure forward measuring point 908 Ground drive hydraulics control pressure forward measuring

point



1-14 Jag-h-Kap01 11/04

1.1.3

JAGUAR 20/25 km/h - from serial no. 492 00011 � 492 00132


1-16 Jag-h-Kap01 11/04

1.1.3 JAGUAR 20/25km/h km/h from serial no. 492 00011 � 492 00132


11/04 Jag-h-Kap01 1-17









1-18 Jag-h-Kap01 11/04

Item Designation Remark 211 Ground drive variable displacement pump See ESIS 218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 226 Front attachment reverser drive motor 470 cm³/rev. 228 Suction arm drive motor 50 cm³/rev. 233 Silage additive pump 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 303 Discharge door hydraulic cylinder 304 Upper discharge chute hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 317 Main drive clutch hydraulic cylinder actuated by oil pressure 323-1 Steering hydraulics cylinder 323-2 Steering hydraulics cylinder (all-wheel drive) 332 Pick-up crop guard lift hydraulic cylinder 333 Pick-up auger lift hydraulic cylinder 340 Cover hydraulic cylinder 341 Sharpening stone movement hydraulic cylinder 351 Front attachment raise/lower hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 353 Front attachment reverse hydraulic cylinder 355 Ground drive servo control motor hydraulic cylinder 405 Orifice plate ∅ 0.6 mm 406 Orifice plate ∅ 0.8 mm 411 Orifice plate ∅ 1.8 mm 421 Front attachment engage one-way restrictor valve 422 One-way restrictor valve optional RU 441 Rotary coupling 442 Venturi meter 501 Working hydraulics pre-pressurization accumulator 0.75 l, pre-pressurized to 80 bar 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 511 Front attachment relief accumulator pre-pressurized to 40 bar 609 Orbitrol steering unit rotary disc valve OSPC 250 612 Front attachment load switch-over valve mechanically actuated 614 Front attachment lower flow control valve mechanically actuated 615 Ground drive control pressure direction valve mechanically actuated 616 Ground drive control pressure speed valve mechanically actuated 617 Working hydraulics pre-pressurization relief screw valve mechanically actuated 703 Working hydraulics pressure relief valve 175+15 bar, hydraulically actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve 21+1 bar 732 Non-return valve hydraulically actuated 734 Lock-up valve unit (non-return valve) hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated


11/04 Jag-h-Kap01 1-19

Item Designation Remark 738 Ground drive servo control forward/backward valve hydraulically actuated 739 Ground drive control pressure shuttle valve 742 Steering safety valve hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically actuated 804 Whole crop harvesting cutterbar quick release coupling 901 Working hydraulics measuring point 902 Ground drive hydraulics high pressure backward measuring

point

903 Ground drive hydraulics high pressure forward measuring point

908 Ground drive hydraulics control pressure forward measuring point



1-20 Jag-h-Kap01 11/04

1.1.4

JAGUAR - JAGUAR SPEEDSTAR/PROFISTAR with electro-hydraulic ground drive (EFA)


1-22 Jag-h-Kap01 11/04

1.1.4 JAGUAR SPEEDSTAR/PROFISTAR with electro-hydraulic ground drive (EFA)


11/04 Jag-h-Kap01 1-23

Item Designation Remark B2 Ground pressure oil pressure sensor Sensor B5 Working hydraulics oil pressure sensor Sensor B97 Drive hydraulics forward high-pressure sensor B98 Drive hydraulics backward high-pressure sensor Y1 4-Trac (all-wheel drive) solenoid coil 3/2 way solenoid valve Y2 Discharge door close solenoid coil 3/2 way solenoid valve Y3 Discharge door far solenoid coil 3/2 way solenoid valve Y4 Upper discharge chute slow/fast rotation solenoid coil 2-step restrictor Y5 Upper discharge chute left rotation solenoid coil 3/2 way solenoid valve Y6 Upper discharge chute right rotation solenoid coil 3/2 way solenoid valve Y7 Upper discharge chute raise solenoid coil 3/2 way solenoid valve Y8 Upper discharge chute lower solenoid coil 3/2 way solenoid valve Y9 AUTOPILOT left solenoid coil 3/2 way solenoid valve Y10 AUTOPILOT right solenoid coil 3/2 way solenoid valve Y26 Main drive solenoid coil 3/2 way solenoid valve Y29 Raise hitch solenoid coil 3/2 way solenoid valve Y30 Lower hitch solenoid coil 3/2 way solenoid valve Y59 Servo circuit solenoid coil 3/2 way solenoid valve Y60 Cover solenoid coil 3/2 way solenoid valve Y61 Sharpening stone left movement solenoid coil 3/2 way solenoid valve Y62 Sharpening stone right movement solenoid coil 3/2 way solenoid valve Y72 Additional control valve 1 � A solenoid coil 3/2 way solenoid valve Y73 Additional control valve 1 � B solenoid coil 3/2 way solenoid valve Y77 Working hydraulics circulation shut-off valve solenoid coil 2/2 way solenoid valve Y85 Raise front attachment solenoid coil 2/3 way solenoid valve (PWM) Y86 Reverse front attachment solenoid coil 3/2 way solenoid valve Y87 Lower front attachment solenoid coil 3/3 way solenoid valve (PWM) Y88 Front attachment clutch solenoid coil 3/2 way solenoid valve Y93 Additional control valve 2 � A solenoid coil 3/2 way solenoid valve Y94 Additional control valve 2 � B solenoid coil 3/2 way solenoid valve Y141 Ground drive forward solenoid coil Y142 Ground drive backward solenoid coil Y143 Ground drive/cut off valve solenoid coil Y144 Ground drive variable displacement motor solenoid coil Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual

value function switch Oil level OK, switch open





102 Pressure filter 10 µm 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 112 Return flow filter Sieve filter 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 206 Upper discharge chute rotation drive motor 160 cm³/rev. 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor See ESIS


1-24 Jag-h-Kap01 11/04



226 Front attachment reverser drive motor 470 cm³/rev. 228 Suction arm drive motor 50 cm³/rev. 233 Silage additive pump 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 303 Discharge door hydraulic cylinder 304 Upper discharge chute hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 317 Main drive clutch hydraulic cylinder actuated by oil pressure 323-1 Steering hydraulics cylinder 323-3 Steering hydraulics cylinder (all-wheel drive) 332 Pick-up crop guard lift hydraulic cylinder 333 Pick-up auger lift hydraulic cylinder 340 Cover hydraulic cylinder 341 Sharpening stone movement hydraulic cylinder 351 Front attachment raise/lower hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 353 Front attachment reverse hydraulic cylinder 355 Ground drive servo control motor hydraulic cylinder 359 Shifter rail locking 405 Orifice plate ∅ 0.6 mm 406 Orifice plate ∅ 0.8 mm 413 Orifice plate ∅ 2.2 mm 421 Front attachment engage one-way restrictor valve 441 Rotary coupling 442 Venturi meter 501 Working hydraulics pre-pressurization accumulator 0.75 l, pre-pressurized to 80 bar 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 511 Front attachment relief accumulator pre-pressurized to 40 bar 609 Orbitrol steering unit rotary disc valve OSPC 200, mechanically

actuated 612 Front attachment load switch-over valve mechanically actuated 614 Front attachment lower flow control valve mechanically actuated 617 Working hydraulics pre-pressurization relief screw valve mechanically actuated 703 Working hydraulics pressure relief valve 175+15 bar, hydraulically

actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically

actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 734 Lock-up valve unit (non-return valve) hydraulically actuated


11/04 Jag-h-Kap01 1-25

Item Designation Remark 738 Ground drive servo control forward/backward valve hydraulically actuated 742 Steering safety valve hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 757 Ground drive additional feed valve 758 Ground drive restrictor valve 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically

actuated 804 Whole crop harvesting cutterbar quick release coupling 807 Line header 901 Working hydraulics measuring point 909 Steering hydraulics measuring point 910 Low-pressure hydraulics measuring point Minimess port 916 Working hydraulics pump measuring point


1-26 Jag-h-Kap01 11/04

1.2 Valve inserts 1.2.1 Overview of valve inserts Valve inserts in the directional control valves

Fig. Item Designation Remark Marking at top

Marking at bottom

Order no.

A None None 2 631 442.0 B Y2 Discharge door close solenoid

coil 3/2 way solenoid valve

None None 631 444.0

Y3 Discharge door far solenoid coil 3/2 way solenoid valve

None None 631 444.0

Y4 Upper discharge chute slow/fast rotation solenoid coil

2-step restrictor

None None 631 444.0

Y5 Upper discharge chute left rotation solenoid coil

3/2 way solenoid valve

None None 631 444.0

Y6 Upper discharge chute right rotation solenoid coil


None None 631 444.0

Y7 Upper discharge chute raise solenoid coil


None None 631 444.0

Y8 Upper discharge chute lower solenoid coil


None None 631 444.0

Y72 Additional control valve 1 � A solenoid coil


None None 631 444.0

Y73 Additional control valve 1 � B solenoid coil


None None 631 444.0

Y93 Additional control valve 2 � A solenoid coil


None None 631 444.0

Y94 Additional control valve 2 � B solenoid coil


None None 631 444.0

C Y61 Sharpening stone left

movement solenoid coil 3/2 way solenoid valve

2 3 631 482.0

Y62 Sharpening stone right movement solenoid coil


2 3 631 482.0

D 1 3 631 483.0

E 4 2 631 500.0

F 3 3 631 421.1

G without

shoulder None 631 525.0

H None None 631 524.0

K � Ball V � pilot spool

Note: When disassembling or replacing a valve insert, the copper ring 094 001.0 must be replaced.

Some of the solenoid valve coil cores are equipped with a return spring in which case they are marked with an "F" on the face end. When performing repairs, these coil cores with return spring 213 030.1 may also be used for functions without return spring.


11/04 Jag-h-Kap01 1-27

1.2.2. Function of valve inserts

Description of function Some of the valve inserts used are listed below in order to make the

differences between these inserts regarding their function on the machine clear.

631 444.0 Spherical seat 2.5 mm Spool 2.8 mm

This valve insert is designed as a spool-type seated valve and therefore closes the return line to the tank before the spherical seat is opened. A positive overlap avoids both oil losses during the switch-over process and pressure peaks in the tank line which is important when operating accumulators. In this valve, the stroke is limited by the solenoid which has the biggest force in its end position, thus delaying the switch-off time due to the residual magnetism.

631 482.0 Spherical seat 1.8 mm Conical seat 3.7 mm

This conical seat valve has a mechanical stop provided by the cone, preventing the solenoid from reaching its end position and ensuring that the valve cuts off very fast as compared to the spool-type seated valves. In addition, the large conical seat in this valve has a pressure-limiting function. The small spherical seat here acts as a restrictor and allows the valve to switch against relatively high pressure levels with a small current intensity.


1-28 Jag-h-Kap01 11/04

Pressure limitation The pressure limitation for this conical seat valve (631482.0) is set to approx. 120 bar. Setting is carried out by using a valve insert with a relatively large cross-section at the conical seat. The hydraulic force acts on the valve insert and consequently also on the electromagnetic force. Starting at a pressure of 120 bar, the conical seat in the valve insert opens because the electromagnetic force is not sufficient any more and the oil pressure is relieved to the tank.

TIC JAGUAR 2. Steering Hydraulic System

11/04 Jag-h-Kap02 2-1

2 Steering hydraulics

2.1 Hydraulic circuit diagram..........................................................2-2

2.2 Function diagram of steering hydraulics ..................................2-4

2.2.1 Neutral .....................................................................................2-4 2.2.2 Steering actuation ....................................................................2-6

2.3 Checking the steering ..............................................................2-8

2.4 Autopilot solenoid valve .........................................................2-10

2.5 Testing and measurements ...................................................2-12

2. Steering Hydraulic System JAGUAR TIC

2-2 Jag-h-Kap02 11/04

2.1 Hydraulic circuit diagram


11/04 Jag-h-Kap02 2-3

Item Designation Remark Y9 AUTOPILOT left solenoid coil 3/2 way solenoid valve Y10 AUTOPILOT right solenoid coil 3/2 way solenoid valve Y77 Working hydraulics circulation shut-off valve solenoid coil 2/2 way solenoid valve Y85 Raise front attachment solenoid coil 2/3 way solenoid valve (PWM) Y86 Reverse front attachment solenoid coil 3/2 way solenoid valve Y87 Lower front attachment solenoid coil 3/3 way solenoid valve (PWM) Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature switch Normally open contact 102 Pressure filter 10 µm 109 Hydraulic system oil cooler 110 Oil tank 112 Return flow filter Sieve filter 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 211 Ground drive variable displacement pump 105 cm³/rev. 218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm


323-1 Steering hydraulics cylinder 323-2 Steering hydraulics cylinder (all-wheel drive) Up to serial no. 492 01019 323-3 Steering hydraulics cylinder (all-wheel drive) From serial no. 492 01020 442 Venturi meter 609 Orbitrol steering unit rotary disc valve OSPC 250 up to 492 01019


614 Front attachment lower flow control valve mechanically actuated 703 Working hydraulics pressure relief valve 175 +15 bar, hydraulically actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 742 Steering safety valve hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 901 Working hydraulics measuring point 909 Steering hydraulics measuring point

Remark: In drawing H 2593.0, component 757 Ground drive additional feed valve

is missing for JAGUAR SPEEDSTAR/PROFISTAR with electronic ground drive.


2-4 Jag-h-Kap02 11/04

2.2 Function diagram of steering hydraulics 2.2.1 Neutral


11/04 Jag-h-Kap02 2-5

Item Designation Remark 112 Return flow filter Sieve filter 218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 229 Steering hydraulics proportioning pump 323-1 Steering hydraulics cylinder 323-2 Steering hydraulics cylinder (all-wheel drive) Up to serial no. 492 01019 323-3 Steering hydraulics cylinder (all-wheel drive) From serial no. 492 01020 609 Orbitrol steering unit rotary disc valve OSPC 250 up to 492 01019


725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 742 Steering safety valve hydraulically actuated

Steering system

Open center = when the steering is in neutral position, there is a connection between pump and tank.

Non reaction = when the steering is in neutral position, a force acting on the steered wheels does not cause any reaction on the steering wheel.

Designations: O � Orbit (Orbitrol)

S � Steering P � Pump C � Version 250 � Oil displacement in cm³/rev. 200 � Oil displacement in cm³/rev. V � Valve block 20 � Pressure setting of shock valves x10

Pressure measurement: Circulation pressure = 17+8 bar

System pressure = 150+15 bar Shock valve = 200±15 bar

Measuring preconditions: Steering hydraulics:

Pressure measurements are carried out at: - maximum volume flow (maximum motor speed), - an oil temperature of 45 � 50 °C.

Design of valve unit: The steering valve consists of a rotor set (proportioning pump) (229)

and a rotating distributor with inner and outer rotary disc (609). The steering gear shaft actuates the rotary disc (609), the continued rotary movement driving the rotor (229) by means of a socket-type shaft.

Neutral function: In neutral position, the oil is directed back to the tank through the non-

return valve (742) and the rotary disc (609) (open center). The circulation pressure must not exceed 20 bar. Both sides of the steering cylinder (323) are shut off by the rotary disc (609). Pressure peaks due to external forces on the steered axle are relieved to the tank via the shock valves (725) (non reaction).


2-6 Jag-h-Kap02 11/04

2.2.2 Steering actuation


11/04 Jag-h-Kap02 2-7

When actuating the steering in one direction, the inner rotary disc (609) is twisted against the outer rotary disc (609) by up to 8°. During this process, the return line from the pump (218) to the tank is closed and the connection to the proportioning pump (229) is released. Via the rotor (229) and the rotary disc (609), the volume flow is released as a function of sense of rotation, path and speed to the piston or the piston rod side of the steering cylinder (323). Here, the displacing surface of the steering cylinder (323) is connected with the return line to the tank via the rotary disc (609). As soon as there is no more steering motion, leaf springs bring the inner and outer rotary discs (609) back to neutral position. Now both sides of the steering cylinder are shut off again and the connection from the pump (218) to the tank is re-established.

Emergency steering function

When the steering system is not supplied any more externally by pump (218), the non-return valve (742) closes and thus ensures that no oil will escape from the steering system. When actuating the steering in one direction, the inner and outer rotary disc (609) are twisted against each other correspondingly. Now the oil can be conveyed from one side of the steering cylinder (323) via non-return valve (728) to the other side through human power by driving the rotor (229).


2-8 Jag-h-Kap02 11/04

2.3 Checking the steering Steering gear shaft Height play = 0.1 to 0.3 mm

Clearance from bottom inside rotary valve = 3 mm

Return When the steering wheel is actuated with the diesel engine shut off, the

leaf springs in the rotary disc must bring the steering wheel back to its neutral position.

Reaction If steering reaction is insufficient, internal leaks in the steering system

must be checked. To do this, disconnect the lines from the steering cylinder and plug them tightly with plugs. With the oil at operating temperature and at max. no-load speed of the diesel engine, the steering wheel must not allow more than 4 turns in both directions when using a force of approx. 25 Nm. When the actual number of turns is more than 4, check the steering valve for leaks. When the actual number of turns is less than 4, check the steering cylinder and the optional autopilot valve for leaks.

Power In case of insufficient power in the steering, check tyre size, tyre

pressure and machine ballast, condition of the connecting rod and smooth action of stub axles. A pressure test at the steering hydraulics measuring port must show the value 150+15 bar. Adjusting the pressure relief valve on the machine in built-in condition is not possible.

Caution: Any installation work on the steering hydraulics must be followed by venting the system on both hydraulic lines of the steering cylinder with the diesel engine running.


11/04 Jag-h-Kap02 2-9


2-10 Jag-h-Kap02 11/04

2.4 Autopilot solenoid valve


11/04 Jag-h-Kap02 2-11

Item Designation Remark A Port Autopilot left B Port Autopilot right P5 Port Pressure supply T Port Return line Y9 AUTOPILOT left solenoid coil Is activated to make Autopilot steer to the left Y10 AUTOPILOT left solenoid coil Is activated to make Autopilot steer to the right K Piston Opens non-return valve mechanically 734 Lock-up valve unit (non-return valve)

Autopilot � steering to the left

The working hydraulics circulation shut-off valve (Y 77) and the solenoid coil (Y 9) are actuated and open the ball via the pilot spool. Oil flows from P5 to the lock-up valve unit via the ball. The non-return valve (port A) is opened by the oil flow against the spring force and oil flows to the steering cylinder. Before this, the pressure built up pushes the piston (K) towards port (B) and opens the non-return valve (port B). The oil coming from the cylinder return side flows via the open right non-return valve. The return flow lifts the pilot spool of the solenoid coil (Y 10) and thus returns to the tank.

Autopilot � steering to the right

The working hydraulics circulation shut-off valve (Y 77) and the solenoid coil (Y 10) are actuated and open the ball via the pilot spool. Oil flows from P5 to the lock-up valve unit via the ball. The non-return valve (port B) is opened by the oil flow against the spring force and oil flows to the steering cylinder. Before this, the pressure built up pushes the piston (S) towards port (A) and opens the non-return valve (port A). The oil coming from the cylinder return side flows via the open left non-return valve. The return flow lifts the pilot spool of the solenoid coil (Y 9) and thus returns to the tank.

Note: The copper ring beneath the valve inserts must be replaced upon each assembly as otherwise leaks may occur. Dimensions of copper ring: 14 x 8 x 1 mm.


2-12 Jag-h-Kap02 11/04

2.5 Testing and measurements

909 Steering hydraulics measuring point 442 Venturi meter

Measuring pre-conditions: Steering hydraulics:

Pressure measurements are carried out at: - maximum volume flow (maximum motor speed), - an oil temperature of 45 � 50 °C.

Set values: Circulation pressure = 15+8 bar.

Maximum pressure = 167+15 bar.

TIC JAGUAR 3. Working Hydraulics

11/04 Jag-h-Kap03 3-1

3 Working hydraulics

3.1 Hydraulic circuit diagram..........................................................3-4

3.2 Main valve: Circulation shut-off valve, front attachment raise/lower solenoid valve ............................3-8

3.3 Valve combination with accumulator .....................................3-12

3.4 Hitch solenoid valve ...............................................................3-14

3.5 Grinding, additional control unit 1, additional control unit 2 solenoid valve .................................3-16

3.6 Corn cracker adjustment........................................................3-18

3.7 Front attachment reverse solenoid valve (Y 86)....................3-22

3.8 Front attachment reverser drive motor (226).........................3-24

3.9 Upper discharge chute rotation drive motor (206) .................3-26

3.10 Front attachment load switch-over valve (612)......................3-28

3.11 Pressure accumulator volume switch-over valve (Direct Disc option) ................................................................3-30

3.12 Testing and measurements ...................................................3-32

3. Working Hydraulics JAGUAR TIC

3-2 Jag-h-Kap03 11/04



3-4 Jag-h-Kap03 11/04



11/04 Jag-h-Kap03 3-5

Item Designation Remark B2 Ground pressure oil pressure sensor Sensor B5 Working hydraulics oil pressure sensor Sensor Y2 Discharge door close solenoid coil 3/2 way solenoid valve Y3 Discharge door far solenoid coil 3/2 way solenoid valve Y4 Upper discharge chute slow/fast rotation solenoid coil 2-step restrictor Y5 Upper discharge chute left rotation solenoid coil 3/2 way solenoid valve Y6 Upper discharge chute right rotation solenoid coil 3/2 way solenoid valve Y7 Upper discharge chute raise solenoid coil 3/2 way solenoid valve Y8 Upper discharge chute lower solenoid coil 3/2 way solenoid valve Y9 AUTOPILOT left solenoid coil 3/2 way solenoid valve Y10 AUTOPILOT right solenoid coil 3/2 way solenoid valve Y29 Raise hitch solenoid coil 3/2 way solenoid valve Y30 Lower hitch solenoid coil 3/2 way solenoid valve Y61 Sharpening stone left movement solenoid coil 3/2 way solenoid valve Y62 Sharpening stone right movement solenoid coil 3/2 way solenoid valve Y72 Additional control valve 1 � A solenoid coil 3/2 way solenoid valve Y73 Additional control valve 1 � B solenoid coil 3/2 way solenoid valve Y77 Working hydraulics circulation shut-off valve solenoid coil 2/2 way solenoid valve Y85 Raise front attachment solenoid coil 2/3 way solenoid valve (PWM) Y86 Reverse front attachment solenoid coil 3/2 way solenoid valve Y87 Lower front attachment solenoid coil 3/3 way solenoid valve (PWM) Y93 Additional control valve 2 � A solenoid coil 3/2 way solenoid valve Y94 Additional control valve 2 � B solenoid coil 3/2 way solenoid valve Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z47 Reverser drive end position actual value function switch Normally open contact Z52 Sharpening stone left movement oil pressure actual value




107 Oil drain 110 Oil tank 112 Return flow filter Sieve filter 205 Working hydraulics pump 19 cm³/rev. 206 Upper discharge chute rotation drive motor 160 cm³/rev. 209 Ground drive feed pump 22.5 cm³/rev. 211 Ground drive variable displacement pump See ESIS 218 Steering hydraulics pump JAGUAR 20/25 km/h = 8 cm³/rev.

JAGUAR 40 km/h = 11 cm³/rev. 226 Front attachment reverser drive motor 470 cm³/rev. 233 Silage additive pump 303 Discharge door hydraulic cylinder 304 Upper discharge chute hydraulic cylinder 323 Steering hydraulics cylinder 332 Pick-up crop guard lift hydraulic cylinder 333 Pick-up auger lift hydraulic cylinder 341 Sharpening stone movement hydraulic cylinder 351 Front attachment raise/lower hydraulic cylinder 353 Front attachment reverse hydraulic cylinder 405 Orifice plate ∅ 0.6 mm 406 Orifice plate ∅ 0.8 mm 501 Working hydraulics pre-pressurization accumulator 0.75 l. pre-pressurized to 80 bar 511 Front attachment relief accumulator pre-pressurized to 40 bar 612 Front attachment load switch-over valve mechanically actuated 614 Front attachment lower flow control valve mechanically actuated 617 Working hydraulics pre-pressurization relief screw valve mechanically actuated


3-6 Jag-h-Kap03 11/04

Item Designation Remark 703 Working hydraulics pressure relief valve 175+15 bar, hydraulically actuated 707 Pressure holding valve (non-return valve) hydraulically actuated 734 Lock-up valve unit (non-return valve) hydraulically actuated 743 Pilot-controlled one way valve 2/2 way, hydraulically actuated 804 Whole crop harvesting cutterbar quick release coupling 901 Working hydraulics measuring point


11/04 Jag-h-Kap03 3-7


3-8 Jag-h-Kap03 11/04

3.2 Main valve: Circulation shut-off valve, front attachment raise/lower solenoid valve


11/04 Jag-h-Kap03 3-9

Designations

A Output to front attachment load switch-over valve (612) T Tank port P5a Pump port P5b Parallel port to other directional control valves G Non-return valve (inlet valve) E Pilot spool F Compressed spring H Front attachment raise spool K Piston R Control spool .......................................................5 � 50 l/min U Circulation shut-off valve control spool V Pilot valve Y 77 Circulation shut-off valve solenoid coil Y 85 Raise front attachment solenoid coil Y 87 Lower front attachment solenoid coil 614 Front attachment lower flow control valve ....................................................... 5 � 50 l/min 703 Pressure relief valve............................................180+15 bar 901 Working hydraulics measuring port 743 Front attachment lower valve 707 Pressure holding valve (non-return valve)

Function description: 1/3

Pressure relief valve

Note:

The spring in the pressure relief valve (703) is pre-stressed for a system pressure of 180±15 bar. The pressure setting may be modified by removing or adding shims. A 0.5 mm shim corresponds to approx. 10 bar A 1.2 mm shim corresponds to approx. 23 bar

The above values refer to a rated pressure of 180 bar and may deviate, depending on the actual system. Each time the setting has been modified, the system pressure must be checked.

Basic setting To ensure the position of spool (H) for the function "Raise front

attachment - slow", the dimension from the top edge of the spool (H) to the body must be 4.3 mm with the coil core (Y 85) removed. The position may be corrected by removing or adding shims above the compressed spring in the spool pot (H). A weaker compressed spring � as compared to the spool (H) - is located below the spool of the circulation shut-off valve (U). The drop rate of the front attachment is set to a drop time of 5-6 seconds over the entire stroke range on the Front attachment lower flow control valve (614) (depending on the corresponding setting of the front attachment load switch-over valve (612)).


3-10 Jag-h-Kap03 11/04

Function description:: 2/3 Function of circulation shut-off valve

The circulation shut-off valve (Y 77) blocks the circulating volume flow from P5a to T of the open hydraulic system when a function has been actuated. Single-acting functions are an exception to this when the consumer is relieved to the tank or when oil pressure is taken from a possibly existing working hydraulics pre-pressurization accumulator (501). In neutral position, the circulation shut-off valve (Y 77) is not actuated, making the oil flow back to the tank via the ring channels on the spool (U). Due to the large channel cross-section, the circulation pressure is very low. When pressure must be built up for a consumer or if the working hydraulics pre-pressurization is not sufficient (on machines with accumulator 501), the circulation shut-off valve (Y 77) is actuated using the directional control valve of the corresponding function. Now spool (U) closes the connection from P5a to T, and the top ring channel is closed first in order to achieve smooth switching-over. The pressure relief valve (703) opens at a maximum system pressure of 180+15 bar and relieves the pressure to the tank.

Function "Raise front attachment - slow"

When the "Raise - slow" function is used, the directional control valve (Y 85) is actuated with a pulsed voltage of 80 Hz and approx. 50% PWM (pulse width modulation). At the same time, the circulation shut-off valve (Y 77) is actuated with 12 V DC. This pulse circuit makes the spool (H) move only to such an extent that the oil must flow via the restrictor pocket inside the spool and the bottom ring channel. The volume flow thus restricted is directed to the consumer port (A) via the non-return valve (G) and slowly raises the front attachment. The residual oil flows back to the tank via the pressure relief valve (703).

Function "Raise front attachment - fast"

When the "Raise - fast" function is used, the directional control valve (Y 85) and the circulation shut-off valve (Y 77) are actuated with 12 V DC. The spool (H) is moved to its end position, making oil flow via both ring channels on the spool (H). The full volume flow is directed to the consumer port (A) via the non-return valve (G) and quickly raises the front attachment.

Pulse width modulation 12V

6V

0V

Effektiv

80Hz

50%

50%

Lex-034


11/04 Jag-h-Kap03 3-11

Function description: 3/3 Function "Lower front attachment - slow"

When the "Lower - slow" function is used, only the directional control valve (Y 87) is actuated with a pulsed voltage of 80 Hz and approx. 40% PWM (pulse width modulation) by the Contour module A11. This pulsed circuit is sufficient to open the spherical seat in the pilot valve (V), however, the force is too low to overcome the spring force (F). Spool (E) therefore cannot close the ring channel to the return line. The load caused by the front attachment displaces the oil via the spherical seat and the bores of spool (E) into the return channel to the tank. The small cross-section at the spherical seat now restricts the volume flow, making the front attachment lower slowly.

Function "Lower front attachment - fast"

When the "Lower - fast" function is used, only the directional control valve(Y 87) is actuated with 12 V DC. The spherical seat in pilot valve (V) is opened and the spring force (F) is overcome through the force of the solenoid. The spool (E) closes the ring channel to the return line, making the load pressure of the front attachment act on the piston plates (K); the load pressure now opens outlet valve (743) due to the surface difference. The oil is now displaced by the front attachment via the outlet valve (743) and the control spool (R) into the return line to the tank. The drop rate of the front attachment here mainly depends on the setting of the flow control valve (614).

Flow control valve When the "Lower front attachment � fast" function is used, the oil

displaced via port A flows to the tank through the restrictor in the control spool of the flow control valve (614). This creates a ram pressure ahead of the control spool, making the latter move against the control spring and restrict the return channel to the tank as a function of the load pressure. When the load pressure at port A changes, both the oil flow through the restrictor and the load pressure against the control spool change, too, and consequently also the return channel cross-section. This control function keeps the effective oil flow through the restrictor in the control spool and through the cross-section in the return channel constant, regardless of the load pressure. The front attachment drop rate is adjusted merely by the pre-stress of the control spring at the handwheel. This reduces the effective oil flow by relieving the control spring, since even a low load pressure will restrict the return channel cross-section.


3-12 Jag-h-Kap03 11/04

3.3 Valve combination with accumulator


11/04 Jag-h-Kap03 3-13

Item Designation Remark A1 Port Rotate upper discharge chute to the right A2 Port Rotate upper discharge chute to the left B1 Port Discharge door close B2 Port Discharge door far B5 Working hydraulics oil pressure Sensor C1 Port Lower upper discharge chute C2 Port Raise upper discharge chute P5 Port Pressure supply under pressure by non-return

valve (707) T Port Return line to tank Y2 Discharge door close solenoid coil 3/2 way solenoid valve Y3 Discharge door far solenoid coil 3/2 way solenoid valve Y4 Upper discharge chute slow/fast rotation

solenoid coil 2-step restrictor

Y5 Upper discharge chute left rotation solenoid coil 3/2 way solenoid valve Y6 Upper discharge chute right rotation solenoid

coil 3/2 way solenoid valve

Y7 Upper discharge chute raise solenoid coil 3/2 way solenoid valve Y8 Upper discharge chute lower solenoid coil 3/2 way solenoid valve 405 Orifice plate Ø 0.6 mm 406 Orifice plate Ø 0.8 mm 501 Working hydraulics pre-pressurization

accumulator 0.75 l. pre-pressurized to 80 bar

617 Working hydraulics pre-pressurization relief screw valve

mechanically actuated

Function The pressurized oil from port P5 is under pressure due to non-return valve (707) (see overall circuit diagram). Machines with Autopilot are equipped with the accumulator (501). This accumulator prevents the circulation shut-off valve (Y 77) from being activated too frequently for small oil consumptions in rapid sequence from the pre-pressurized hydraulic circuit P5b (see Main valve) and avoids the resulting oil heat-up. The applied oil pressure is monitored by the working hydraulics sensor (B 5) and reported to the module A9 "Autopilot". If the oil pressure falls below 135 bar, module A9 activates the circulation shut-off valve Y 77 and deactivates it at 165 bar. This pressurized oil is available at all working hydraulics solenoid valves except the front attachment raise and lower solenoid valves.

Caution � Danger of accident

Prior to performing service work on the working hydraulics, the oil under pressure must be drained by unscrewing the relief screw (617). For function and tasks of the solenoid coils please refer to the table.


3-14 Jag-h-Kap03 11/04

3.4 Hitch solenoid valve


11/04 Jag-h-Kap03 3-15

Designations

Y29 Raise hitch solenoid coil Y30 Lower hitch solenoid coil 734 Lock-up valve unit (non-return valve) T Tank port P5 Pump via circulation shut-off valve port A Consumer port (see overall circuit diagram) B Consumer port (see overall circuit diagram) K Piston

Neutral function Solenoid coils are not energized. Both sides of the hydraulic cylinder are blocked tightly by the non-return valves (137) in the consumer ports A and B.

Funktion Arbeitsstellung Solenoid coils are energized.

According to the required direction of motion, one of the solenoid valves and the working hydraulics circulation shut-off valve (Y 77) are actuated. The corresponding pilot spool opens the ball in the valve insert and closes the return line to the tank. The pressure which consequently rises builds up against piston (K) and opens the non-return valve (137) at port A or B. The return line of the hydraulic cylinder is thus released to the tank via the valve insert of the unactuated solenoid valve. The pressure rising further now opens the non-return valve (137) at the opposite port and the hydraulic cylinders are retracted or extended.

Note: The copper ring beneath the valve inserts must be replaced upon each

assembly as otherwise leaks may occur. Dimensions of copper ring: 14 x 8 x 1 mm.


3-16 Jag-h-Kap03 11/04

3.5 Grinding, additional control unit 1, additional control unit 2 solenoid valve


11/04 Jag-h-Kap03 3-17

Designations

Y61 Sharpening stone left movement solenoid coil Y62 Sharpening stone right movement solenoid coil Y72 Additional control valve 1 � A solenoid coil Y73 Additional control valve 1 � B solenoid coil Y93 Additional control valve 2 � A solenoid coil Y94 Additional control valve 2 � B solenoid coil T Tank port P5 Pump via circulation shut-off valve port A Consumer port (see overall circuit diagram) B Consumer port (see overall circuit diagram)

Explanation of function, using grinding as an example 0 position None of the solenoid coils (Y 61 / Y 62) is energized. Ports (A) and (B)

are connected to the tank (T). Sharpening stone to the left (see also overall circuit diagram)

The circulation shut-off valve (Y 77) and the solenoid coil (Y 61) are actuated. The pilot spool of the solenoid coil (Y 61) opens the ball againstthe pressure in port (P5). Volume flow flows from port (P5) via the ball to port (A) and continues to the left-hand connecting rod end of the sharpening stone movement hydraulic cylinder (341). The volume flow displaced during this process from the right-hand connecting rod end of the sharpening stone movement hydraulic cylinder (341) lifts the pilot spool of the solenoid coil (Y62) and thus returns to the tank.

Sharpening stone to the right (see also overall circuit diagram)

The circulation shut-off valve (Y 77) and the solenoid coil (Y 62) are actuated and open the ball via the pilot spool. Oil flows from P5 via the ball to port B, continues to oil pressure switch Z 53 and to the right-hand connecting rod end of the sharpening stone cylinder (341). The return flow coming from the left-hand connecting rod end of the sharpening stone cylinder (341) lifts the pilot spool of the solenoid valve (Y61) and thus returns to the tank.

Pressure limitation The pressure limitation for sharpening is set to approx. 120 bar. Setting is

carried out by using a valve insert with a relatively large cross-section at the conical seat. The hydraulic force acts on the valve insert and consequently also on the electromagnetic force. Starting at a pressure of 120 bar, the conical seat in the valve insert opens because the electromagnetic force is not sufficient any more and the oil pressure is relieved to the tank.

Note: The copper ring beneath the valve inserts must be replaced upon each assembly as otherwise leaks may occur.


3-18 Jag-h-Kap03 11/04

3.6 Corn cracker adjustment


11/04 Jag-h-Kap03 3-19

Item Designation Remark A Figure Cracker adjusting range (26 mm piston stroke) B Figure Venting range (piston on double pump overall length 231 mm) a Port to left adjusting cylinder b Port to right adjusting cylinder c Port Filling port d Piston is turned in or out for cracker gap adjustment e Port for venting the cracker gap adjustment 356 R Cylinder Cracker gap adjustment, right 356 L Cylinder Cracker gap adjustment, left 230 Corn cracker adjustment

pump Serves as a proportioning pump for cracker adjusting cylinder

Adjusting and venting Adjust minimum corn cracker gap at the corn cracker adjustment (double

pump 230). Check the gap between the corn cracker rollers at the biggest diameter (with worn rollers), set value 0.5 mm. Adjustment to be carried out at the stop bolts (S).

- Remove adjusting device at the corn cracker adjustment pump (230)

so that the hexagon socket of piston (d) can be accessed. - Connect minimess hose to the low-pressure hydraulics measuring

point (910) and to filling port (c). - Place vent hoses on vent ports (e) of both adjusting cylinders (356) on

the right-hand and left-hand side. Direct the vent hoses into a collecting container.

- Adjust the corn cracker adjustment pump (230) to 231 mm, see item B.

- Start the engine. - Vent cylinders (356 L) and (356 R) until the oil comes out without

bubbles. - Stop the engine and remove the minimess hose first from the filling

port (c) and then from the low-pressure hydraulics measuring point (910).

- Turn in the piston (d) up to the dimension 222 mm, see figure A. - Slightly open the vent ports (e) on the right-hand and left-hand side

and relieve the oil pressure, thus re-establishing the mechanical basic position.

- Close the vent ports (e) again.


3-20 Jag-h-Kap03 11/04

Turn in the piston (d) until the roller gap is 2 mm. Check if the clearance of the cracker rollers is parallel. A tolerance of 0.3 mm is allowed. If the clearance is not parallel, repeat the venting process.

Remove vent hoses. Re-fit adjusting device to the corn cracker adjustment pump (230).

In case of mechanical cracker adjustment, adjust the scale value (2 mm)

on the scale. In case of electrical cracker adjustment, program the gap clearance of 2 mm in the CIS. (See Operator's Manual)

Caution! During operation, the clearance of the cracker rollers must absolutely not

fall below the minimum clearance of 1 mm, i.e. the corn cracker clearance must not be set to less than 1 mm (manual and/or electrical). Otherwise, the bolts (S) might get in contact and cause damage to the corn cracker.


11/04 Jag-h-Kap03 3-21

Notes::


3-22 Jag-h-Kap03 11/04

3.7 Front attachment reverse solenoid valve (Y 86)


11/04 Jag-h-Kap03 3-23

Designations

Y86 Reverse front attachment solenoid coil Z47 Reverser drive end position 226 Front attachment reverser drive motor 353 Front attachment reverse hydraulic cylinder T Tank port P5 Pump via circulation shut-off valve port A Front attachment reverse hydraulic cylinder port

Neutral function The spring force displaces the oil from the reverser cylinder (353) via the connection from A to T in the solenoid valve (Y 86) to the tank. Port (P5) is shut off.

Reversing function Just before it reaches its end position is the volume flow totally released

to the front attachment reverser drive motor (226) by the front attachment reverse hydraulic cylinder (353).


3-24 Jag-h-Kap03 11/04

3.8 Front attachment reverser drive motor (226)


11/04 Jag-h-Kap03 3-25

Designations: 226 Front attachment reverser drive motor....................470 cm³/rev.


3-26 Jag-h-Kap03 11/04

3.9 Upper discharge chute rotation drive motor (206)


11/04 Jag-h-Kap03 3-27

Key to diagram:

1 Housing 2 Output shaft / distributor valve 3 Cardan shaft 4 Ring gear 5 Gear 206 Upper discharge chute rotation drive motor ...........160 cm³/rev.


3-28 Jag-h-Kap03 11/04

3.10 Front attachment load switch-over valve (612)


11/04 Jag-h-Kap03 3-29

Task: When lifting lightweight and heavy front attachments, the hydraulic pressure in the Front attachment raise/lower cylinders (351) is kept at the same level.

Benefit: Improved response of Contour system and of ground pressure control

with an accumulator. This is made possible by the Front attachment load switch-over valve (612) switching over to different pressure surfaces in the hydraulic cylinders (351).

Designations K Face end of cylinders Ø 75 mm

R Rod end of cylinders = (face end Ø 75 mm � cylinder rod surface Ø 50 mm) P6 Pressurized oil from Front attachment raise/lower main valve. T Tank port return line X Safety pin to avoid switching over under load, resulting in unwanted lowering of the front attachment.

Figure A This position is selected for lightweight front attachments such as pick-up

and 4-row maize header. Effective hydraulic pressure surface in the Front attachment raise/lower hydraulic cylinders (351): Face end minus rod end = cylinder rod surface Ø 50 mm.

Figure B Switching position to allow actuating the Front attachment load switch-

over valve (612). To do this, the front attachment must be lowered and the hydraulic pressure at port P6 must be completely relieved. (pressure display in CIS shows no pressure.) The spring (see X) pushes the safety pin in and the change-over lever of the Front attachment load switch-over valve (612) can be set to the other position.

Figure C This position is used for heavy front attachments such as maize headers,

6-row and 8-row RU maize headers and cutterbars. The rod end of the hydraulic cylinders is connected with the tank. The effective hydraulic pressure surface in the Front attachment raise/lower hydraulic cylinders (351) is the face end Ø 75 mm.


3-30 Jag-h-Kap03 11/04

3.11 Pressure accumulator volume switch-over valve (Direct Disc option)


11/04 Jag-h-Kap03 3-31

Key to diagram:

351 Raise/lower front attachment hydraulic cylinder 511 Front attachment relief accumulator 612 Front attachment load switch-over valve 655 Pressure accumulator volume switch-over valve B2 Downward force oil pressure sensor P Pressurized oil P6 Pressurized oil from Front attachment raise/lower main valve T Tank port

Function The switch-over valve (655) allows increasing the volume of accumulator

(511). This is required for better adaptation of the ground pressure control (Contour) when using front attachments of different weights (alternative to Direct Disc mower, as an option).

Operation of accumulator circuit

To operate the accumulator volume switching-over (655), the front attachment must be lowered and the hydraulic pressure at port P6 must be completely relieved. (pressure display in CIS shows no pressure.)

The spring (see X) pushes the safety pin in and the lever of the accumulator volume switch-over valve (655) can be set to the other position.


3-32 Jag-h-Kap03 11/04


901 Working hydraulics measuring point

Measuring pre-conditions: Working hydraulics:

Pressure measurements are carried out at: - maximum volume flow (maximum motor speed), - an oil temperature of 45 � 50 °C

Set values: Circulation pressure 2.5+6 bar.

Maximum pressure 185+15 bar.

TIC JAGUAR 4. Low-pressure hydraulics

11/04 Jag-h-Kap04 4-1

4 Low-pressure hydraulics

4.1 Hydraulic circuit diagram......................................................... 4-2

4.1.1 JAGUAR 20/25 km/h from serial no. 492 01614 .................... 4-2 4.1.2 JAGUAR 20/25 km/h

from serial no. 492 00011 � 492 01613 ................................. 4-4 4.1.3 JAGUAR SPEEDSTAR/PROFISTAR with

electro-hydraulic ground drive (EFA)...................................... 4-6

4.2 Position of components .......................................................... 4-8

4.3 Solenoid valve (3/2 way)....................................................... 4-12

4.4 Pressure relief valve ............................................................. 4-14

4.5 Front attachment clutch hydraulic cylinder ........................... 4-16

4.6 Shifter rail locking hydraulic cylinder..................................... 4-18

4.7 Suction arm drive flow control valve ..................................... 4-20

4.8 Suction arm drive motor........................................................ 4-22

4.9 Line header ........................................................................... 4-24

4.10 Knife support valve cylinder.................................................. 4-26

4.11 Testing and measurements .................................................. 4-28

4. Low-pressure hydraulics JAGUAR TIC

4-2 Jag-h-Kap04 11/04

4.1 Hydraulic circuit diagram 4.1.1 JAGUAR 20/25 km/h from serial no. 492 01614


11/04 Jag-h-Kap04 4-3

Functional changes as compared with JAGUAR 20/25 km/h from serial no. 492 00011-492 01613 (see 5.1.2):

- the suction arm drive motor (228) runs permanently because it is supplied with oil directly from the line header (807).

- the line header (807) has been added. Item Designation Remark Y1 4-Trac (all-wheel drive) solenoid coil 3/2 way solenoid valve Y26 Main drive solenoid coil 3/2 way solenoid valve Y60 Cover solenoid coil 3/2 way solenoid valve Y88 Front attachment clutch solenoid coil 3/2 way solenoid valve Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual value


102 Pressure filter 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 211 Ground drive variable displacement pump See ESIS

218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 228 Suction arm drive motor 50 cm³/rev. 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 317 Main drive clutch hydraulic cylinder actuated by oil pressure 340 Cover hydraulic cylinder 352 Front attachment clutch hydraulic cylinder new cylinder as from serial

no. 1820 406 Orifice plate ∅ 0.8 mm 411 Orifice plate ∅ 1.8 mm 421 Front attachment engage one-way restrictor valve 441 Rotary coupling 442 Venturi meter 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 609 Orbitrol steering unit rotary disc valve OSPC 200, mechanically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically actuated 807 Line header 910 Low-pressure hydraulics measuring point Minimess port


4-4 Jag-h-Kap04 11/04

4.1.2 JAGUAR 20/25 km/h from serial no. 492 00011 - 492 01613


11/04 Jag-h-Kap04 4-5

Item Designation Remark Y1 4-Trac (all-wheel drive) solenoid coil 3/2 way solenoid valve Y26 Main drive solenoid coil 3/2 way solenoid valve Y60 Cover solenoid coil 3/2 way solenoid valve Y88 Front attachment clutch solenoid coil 3/2 way solenoid valve Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual


102 Pressure filter 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 211 Ground drive variable displacement pump See ESIS

218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 228 Suction arm drive motor 50 cm³/rev. 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 317 Main drive clutch hydraulic cylinder actuated by oil pressure 340 Cover hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 406 Orifice plate ∅ 0.8 mm 411 Orifice plate ∅ 1.8 mm 421 Front attachment engage one-way restrictor valve 422 Front attachment engage one-way restrictor valve option for RU, is dropped as from serial

no. 1820 441 Rotary coupling 442 Venturi meter 504 Main drive clutch accumulator 0,075l. pre-pressurized to 6 bar 609 Orbitrol steering unit rotary disc valve OSPC 250 up to 492 01019


710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically actuated 910 Low-pressure hydraulics measuring point Minimess port


4-6 Jag-h-Kap04 11/04

4.1.3 JAGUAR SPEEDSTAR/PROFISTAR with electro-hydraulic ground drive (EFA)


11/04 Jag-h-Kap04 4-7

Item Designation Remark Y1 4-Trac (all-wheel drive) solenoid coil 3/2 way solenoid valve Y26 Main drive solenoid coil 3/2 way solenoid valve Y59 Servo circuit solenoid coil 3/2 way solenoid valve Y60 Cover solenoid coil 3/2 way solenoid valve Y88 Front attachment clutch solenoid coil 3/2 way solenoid valve Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual


102 Pressure filter 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 211 Ground drive variable displacement pump

See ESIS

218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 228 Suction arm drive motor 50 cm³/rev. 302 All-wheel drive clutch hydraulic cylinder actuated by oil pressure 317 Main drive clutch hydraulic cylinder actuated by oil pressure 340 Cover hydraulic cylinder 352 Front attachment clutch hydraulic cylinder 359 Shifter rail locking 406 Orifice plate ∅ 0.8 mm 413 Orifice plate ∅ 2.2 mm 421 Front attachment engage one-way restrictor valve 441 Rotary coupling 442 Venturi meter 504 Main drive clutch accumulator 0.075 l, pre-pressurized to 6 bar 609 Orbitrol steering unit rotary disc valve OSPC 200, mechanically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 790 Suction arm drive flow control valve Q = 2 l/min, hydraulically actuated 807 Line header 910 Low-pressure hydraulics measuring point Minimess port


4-8 Jag-h-Kap04 11/04

4.2 Position of components Tailgate area

Y59 Servo circuit solenoid coil

Y26 Main drive solenoid coil 504 Main drive clutch accumulator

Inside, centre

228 Suction arm drive motor

790 Suction arm drive flow control valve


11/04 Jag-h-Kap04 4-9

Front, under right-hand front attachment channel cover

421 Actuate front attachment one-way restrictor valve

352 Front attachment clutch hydraulic cylinder Centre right

441 Rotary coupling

317 Main drive clutch hydraulic cylinder


4-10 Jag-h-Kap04 11/04

Inside, right

Y1 4-Trac (all-wheel drive) solenoid coil

Y60 Cover solenoid coil Y88 Front attachment clutch solenoid coil 729 Low-pressure hydraulics pressure relief valve 910 Low-pressure hydraulics measuring point


11/04 Jag-h-Kap04 4-11

Notes:


4-12 Jag-h-Kap04 11/04

4.3 Solenoid valve (3/2 way)


11/04 Jag-h-Kap04 4-13

Key to diagram:

A Consumer port P4 Low-pressure port S Emergency operation screw T Tank port V Valve insert

Description of function: With the solenoid coil de-energised, a connection is provided from the

consumer port (A) to the return line into the tank (T) via the conical seat in the valve insert (V). Here the low pressure (P4) applied is blocked by the spherical seat in the valve insert (V).

When the corresponding solenoid coil for a given function is actuated, the

plunger opens the ball in the valve insert (V) and closes the conical seat to the return line (T). The low pressure (P4) is thus applied to the hydraulic cylinder via the consumer port (A).

Note: In case of emergency operation, screw (S) must be screwed in up to the stop to make the conical seat in the valve insert (V) close the return line to the tank (T) tightly.


4-14 Jag-h-Kap04 11/04

4.4 Pressure relief valve


11/04 Jag-h-Kap04 4-15

Key to diagram: 729 Low-pressure hydraulics pressure relief valve............21+4 bar


4-16 Jag-h-Kap04 11/04

4.5 Front attachment clutch hydraulic cylinder (352)


11/04 Jag-h-Kap04 4-17

Key to diagram:::

352 Front attachment clutch hydraulic cylinder (Figure A: from serial no. 1820 Figure B: up to serial no. 1819)

421 Front attachment engage one-way restrictor valve 422 Front attachment engage one-way restrictor valve (option for RU,

is dropped as from serial no. 1820)


4-18 Jag-h-Kap04 11/04

4.6 Shifter rail locking hydraulic cylinder


11/04 Jag-h-Kap04 4-19

Keys to diagram:

359 Shifter rail locking hydraulic cylinder 624 Venting valve a Shifter rail b Ball c Compressed spring d Piston e Compressed spring f Port

Function: Shifter rail is locked No pressurized oil is applied at port (f). The compressed spring (e) pushes the piston (d) on the ball (b) which

locks the shifter rail (a). Shifter rail is unlocked The solenoid valve (Y104) has been actuated, making pressurized oil

flow beneath the piston (d) via port (f). The piston (d) is actuated to the top against the compressed spring (e). Now the ball (b) is loaded only by the compressed spring (c). The shifter

rail (a) can be actuated against this spring force.

Venting procedure

The actuation circuit must be vented:

- when the actuation circuit has been opened, - when shifting gears is possible only after extended actuation of

button (K) on the gear shift lever.

1. Set ground speed control lever to N position. 2. Block the machine by actuating the service braking system and the

parking brake. 3. Start diesel engine and let it run at idle speed. 4. Press button (K) on the ground speed control lever. 5. Another person opens the vent valve (624). 6. Continue venting until oil comes out without bubbles. Collect any

escaping oil. 7. Close vent valve (624).

Note: Check oil level in hydraulic oil tank and add some oil if necessary.


4-20 Jag-h-Kap04 11/04

4.7 Suction arm drive flow control valve


11/04 Jag-h-Kap04 4-21

Bezeichnungen:

790 Suction arm drive flow control valve A Low pressure B To suction arm drive hydraulic motor C Insert D Measuring orifice E Spool F Spring

Function: - Ensuring constant speed of suction arm - Avoiding an oil pressure drop in the low-pressure hydraulics, especially

on the main drive clutch. 2 way flow controller:

The measuring orifice (D) whose diameter determines the volume flow is part of the movable piston.

When the feed flow increases, the piston moves towards the spring (F) and restricts the drain cross-section, keeping the pressure difference at the measuring orifice constant.


4-22 Jag-h-Kap04 11/04

4.8 Suction arm drive motor (228)


11/04 Jag-h-Kap04 4-23

Designations:

228 Suction arm drive motor ..........................................50 cm³/rev. 1 Body 2 Drive shaft 3 Cardan shaft 4 Ring gear 5 Gear


4-24 Jag-h-Kap04 11/04

4.9 Line header


11/04 Jag-h-Kap04 4-25

Item Designation Remark 102 Pressure filter 413 Orifice plate ∅ 2.2 mm 807 Line header Z46 Pressure switch 12 bar NC contact. Monitors the pressure in the low-pressure

hydraulics. P1 Volume flow input from pressure filter (102) P2 Output to the ground drive variable displacement motor (210), input (E). P3 Output to suction arm drive motor (228) P4 Output to low-pressure hydraulics


4-26 Jag-h-Kap04 11/04

4.10 Knife support valve cylinder


11/04 Jag-h-Kap04 4-27

Key to diagram:

729 Low-pressure hydraulic system pressure relief valve 910 Low-pressure hydraulics measuring point 3031 Knife support hydraulic cylinder Y240 Knife support solenoid coil on/off

Function: Extending the knife support When solenoid coil Y240 is actuated, pressurized oil is applied to the ram

face and the ring face of hydraulic cylinder 3031. The difference faces (ring face < ram face) makes the ram rod of hydraulic cylinder 3031 extend.

Retracting the knife support When solenoid coil Y240 is not actuated, the ram face of hydraulic

cylinder 3031 is relieved to the tank. The pressurized oil applied to the ring face makes the ram rod of hydraulic cylinder 3031 retract.

Note: The existing set screw only serves as a plug.


4-28 Jag-h-Kap04 11/04


Descriptions: 910 Low-pressure hydraulics measuring point...... 19+4 bar

Measuring pre-conditions: Low-pressure hydraulics:

Pressure measurements are carried out at: - maximum volume flow (maximum motor speed), - at an oil temperature of 45 � 50 °C.

TIC JAGUAR 5. Ground drive hydraulics

11/04 Jag-h-Kap05 5-1

5 Ground drive hydraulics

5.1 JAGUAR 20/25 km/h from serial no 492 01614 ......................5-4

5.1.1 Ground drive hydraulics circuit diagram ..................................5-4

5.1.2 Diagram: Propulsive power (F) / Ground speed (v).................5-6

5.1.3 Function of ground drive ..........................................................5-8

5.1.4 Testing and measurements ...................................................5-12

5.1.5 Venting the HPV pump / HMV motor control pressure circuit. ......................................5-14

5.2 JAGUAR 20/25 km/h from serial no. 492 00133 up to serial no. 492 01613...........5-16

5.2.1 Ground drive hydraulics circuit diagram ................................5-16

5.3 JAGUAR 20/25 km/h from serial no. 492 00011 up to serial no. 492 00132.....................................................5-16

5.3.1 Ground drive hydraulics circuit diagram ................................5-16

5.4 JAGUAR SPEEDSTAR/PROFISTAR with electro- hydraulic actuation (EFA) ......................................................5-20

5.4.1 Ground drive hydraulics circuit diagram................................5-20

5.4.2 Ground drive control ..............................................................5-24

5.4.3 Components ..........................................................................5-26

5.4.3.1 Ground drive variable displacement pump (211) ..................5-24

5.4.3.2 Solenoid coil: Y141, Y142, Y143..........................................5-28

5.4.3.3 Ground drive variable displacement motor (210) ..................5-30

5.4.3.4 Ground drive additional feed valve (757) .............................5-32

5.4.3.5 Ground drive filter bypass valve (710)...................................5-33

5.4.3.6 Pressure switches B97 and B98 ...........................................5-34

5.4.3.7 Line header (807) ..................................................................5-35

5.4.3.8 Venturi meter .........................................................................5-36

5.4.4 Diagram: Propulsive power (F) / Ground speed (v) ..............5-37

5.4.5 Testing and measurements ...................................................5-38

5. Ground drive hydraulics JAGUAR TIC

5-2 Jag-h-Kap05 11/04

5.1 JAGUAR 20/25 km/h

- from serial no 492 01614 5.1.1

Ground drive hydraulics circuit diagram


5-4 Jag-h-Kap05 11/04

5.1 JAGUAR 20/25 km/h from serial no 492 01614 5.1.1 Ground drive hydraulics circuit diagram


11/04 Jag-h-Kap05 5-5

Item Designation Remark Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature Normally open contact Z46 Low-pressure hydraulics/ground drive oil pressure actual


102 Pressure filter 10 µm 104 Control pressure vent plug 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 211 Ground drive variable displacement pump

See ESIS

218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 233 Silage additive pump 313 Ground drive pump servo control hydraulic cylinder 355 Ground drive motor servo control hydraulic cylinder 411 Orifice plate ∅ 1.8 mm 442 Venturi meter 609 Orbitrol steering unit rotary disc valve OSPC 250, mechanically actuated 615 Ground drive control pressure direction valve mechanically actuated 616 Ground drive control pressure speed valve mechanically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve hydraulically actuated 732 Non-return valve hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated 738 Ground drive servo control forward/backward valve hydraulically actuated 742 Steering safety valve hydraulically actuated 807 Line header 902 Ground drive hydraulics high pressure backward measuring

point





5-6 Jag-h-Kap05 11/04

5.1.2 Diagram: Propulsive power (F) / Ground speed (v)

Curve a The first forward gear is engaged, the ground speed control lever is moved from its 0 position to the front. Curve section 1: When starting, the ground drive variable displacement pump HPV 105 swivels from a volumetric displacement of 0 towards 105 cm³/rev. The ground drive variable displacement motor HMV is set to its maximum input volume of 105 cm³/rev. on Jaguar 850, 830 up to serial no. 492 00135 135 cm³/rev. on Jaguar 900, 890, 870 and 850, 830 from serial no.: 492 00136 Now: - maximum propulsive power is reached; - the max. ground speed is approx. 9 km/h. Curve section 2: The ground drive variable displacement pump HPV 105 is set to 105 cm³/rev. of volumetric displacement. The ground drive variable displacement motor HMV swivels from an input volume of 105 cm³/rev. to 85 cm³/rev. for Jaguar 850, 830 up to serial no. 49200135 and from 135 cm³/rev. to 85 cm³/rev. on Jaguar 900, 890, 870 and 850, 830 from serial no. 49200136 Now: - the propulsive power decreases; - the ground speed increases up to approx. 14 km/h.

Curve b The second forward gear is engaged,

the ground speed control lever is moved from its 0 position to the front. Curve section 3: When starting, the ground drive variable displacement pump HPV 105 swivels from a volumetric displacement of 0 towards 105 cm³/rev. The ground drive variable displacement motor HMV is set to its maximum input volume of 105 cm³/rev. on Jaguar 850, 830 up to serial no. 49200135 135 cm³/rev. on Jaguar 900, 890, 870 and 850, 830 from serial no. 49200136 Now: - the propulsive force is smaller than in the first gear - the max. ground speed is approx. 19 km/h. Curve section 4: The ground drive variable displacement pump HPV 105 is set to 105 cm³/rev. of volumetric displacement. The ground drive variable displacement motor HMV swivels from an input volume of 105 cm³/rev. to 85 cm³/rev. for Jaguar 850, 830 up to serial no. 49200135 and from 135 cm³/rev. to 85 cm³/rev. on Jaguar 900, 890, 870 and 850, 830 from serial no. 49200136 Now: - the propulsive power decreases; - the ground speed increases up to 20 km/h or 25 km/h.


11/04 Jag-h-Kap05 5-7

Pump HPV 105 HPV = High-pressure pump, variable. Max. volumetric displacement 105 cm³/rev. Maximum operating pressure 420 bar Maximum speed 2890 rpm Swivel angle 21° Mechanical � hydraulic swivel and maximum pressure control Feed pump 22.5 cm³/rev. Pressure filter 10 µm Filter bypass valve ∆p = 2 bar

Motor HMV 105 or 135 HMV = High-pressure motor, adjustable.

Maximum input volume 135 cm³/rev. on Jaguar 900, 890, 870. Maximum input volume 105 cm³/rev. on Jaguar 850, 830 up to serial no. 492 00135. Minimum input volume 85 cm³/rev. for all types. Variable hydraulic swivel

Warning devices Overtemperature alarm at 104°C

Feed pressure < 12 bar Oil level < min.


5-8 Jag-h-Kap05 11/04

5.1.3 Function of ground drive Linde HPV - HMV ground drive, variable, with maximum propulsive force control Motor started, ground speed control lever in neutral position

- The ground drive feed pump (209) takes in cooled oil and pumps it to the pressure filter (102).

- In case of cold oil, the ground drive feed circuit cold weather starting valve (718) prevents pressure build-up > 28 bar.

- Oil flows through pressure filter (102). When the filter resistance exceeds a ∆p = 2 bar, the ground drive filter bypass valve (710) is opened and lets the oil continue to flow without filtering.

- The ground drive feed pressure relief valve (716) controls the cooled and filtered oil to a pressure of 22.5 bar which is available as feed pressure at the following points:

• Via orifice plate (401) Ø 1.8 mm to the low-pressure hydraulics • to feed the ground drive multi-function valves (713) (714). • on both sides of the ground drive pump servo control (313) • at the ground drive control pressure speed control valve (616). The oil pressure controlled to 21 bar by the low-pressure hydraulics pressure relief valve (729) is applied as control pressure to the ground drive motor servo control cylinder (355) via the ground drive servo control motor speed valve (737). The motor swivels to maximum input volume (= low speed and high propulsive force). The ground drive servo control direction pump valve (738) is spring-centred and in its neutral position. Both cylinder spaces are connected with the tank via the ground drive control pressure direction valve (615).

Motor started, ground speed control lever moved to forward travel

Pump: When moving the ground speed control lever, the ground drive control pressure direction valve (615) and the ground drive control pressure speed control valve (616) are actuated. This pre-selects the forward direction of travel and a control pressure proportional to the lever movement is built up for the servo control. At a control pressure of 4 bar and higher, the spring force at the ground drive servo control direction pump valve (738) is overcome. The ground drive servo control direction pump valve (738) now actuates the ground drive pump servo control cylinder (313). The HPV pump swivels proportionally to the position of the ground speed control lever. At a control pressure of 9 bar, the pump has reached its maximum position = max. volumetric displacement. Motor: The control pressure generated by actuating the ground speed control lever is also applied at the servo control motor speed valve (737). When the ground speed control lever is moved so far that a control pressure of > 9 bar is built up, the spring force of this valve is overcome and the ground drive motor servo control cylinder (355) is adjusted proportionally to the position of the ground speed control lever towards low input volume = max. ground speed. Maximum ground speed is reached: • with motor HMV 105 at 10.5 bar and • with motor HMV 135 at 12 bar control pressure. The Bowden cable on the pump is mounted in the inner bore of the adjusting lever on ground drives with HMV 135 and in the outer bore with the HMV 105. The pivot position of the Bowden cable must not be modified.


11/04 Jag-h-Kap05 5-9

Forward travel. Feed of cooled and filtered oil into the closed high-pressure circuit.

When driving, a pressure is generated in the high-pressure forward line which corresponds to the resistance to vehicular motion. A lower pressure (feed pressure) is available in the high-pressure backward line. This pressure difference actuates the ground drive oil tapping shuttle valve (721). Oil is tapped from the high-pressure backward line via the ground drive tap pressure control valve (719). Since the feed pressure is applied to the ground drive multi-function valves (713) and (714), fresh oil is introduced via the ground drive backward multi-function valve (713). The forward multi-function valve is closed by the oil pressure (due to the resistance to vehicular motion).

Backward travel. Feed of cooled and filtered oil into the closed high-pressure circuit.

When driving, a pressure is generated in the high-pressure backward line which corresponds to the resistance to vehicular motion. A lower pressure (feed pressure) is available in the high-pressure forward line. This pressure difference actuates the ground drive oil tapping shuttle valve (721). Oil is tapped from the high-pressure forward line via the ground drive tap pressure control valve. Since the feed pressure is applied to the ground drive multi-function valves (713) and (714), fresh oil is introduced via the ground drive forward multi-function valve (714). The backward multi-function valve is closed by the oil pressure (due to the resistance to vehicular motion).

Motor started, ground speed control lever moved to backward travel.

Basically, the "Driving backward" control is the same as for "Driving forward". The difference is that the control pressure direction valve (615) is actuated in the backward position. The motor servo control is actuated via the ground drive control pressure shuttle valve (739) only on machines up to serial no. �.. Machines from serial no. �. actuate only the pump when in backward motion. The motor therefore remains in the large input volume range = large propulsive power. The shuttle valve has been dropped, see circuit diagram.

Maximum propulsive force control.

The forward oil pressure of the high-pressure circuit is applied to the ground drive pressure cut-off valves (708). When increased resistance to vehicular motion occurs, high pressure of up to 400 bar may build up. This increased oil pressure opens the ground drive pressure cut-off valve (708). This open valve lets the control pressure of the motor and pump servo control relieve to the tank via the non-return valve (732) set to 4.6 bar. The ground drive motor servo control valve (355) is set back to its initial position due to the decrease of the control pressure to below 9 bar. The motor now swivels to its maximum input volume = increased propulsive force. By swivelling to the maximum input volume the forward oil pressure of the high-pressure circuit drops again. The forward ground drive pressure cut-off valve (708) closes again. The machine now moves at slow speed and maximum propulsive force.


5-10 Jag-h-Kap05 11/04

Maximum pressure control:

The forward or backward oil pressure of the high-pressure circuit is applied to the ground drive pressure cut-off valves 708 and the ground drive multi-function valves 713 or 714. When increased resistance to vehicular motion occurs, high pressure of up to 420 bar may build up. This increased oil pressure opens the corresponding ground drive pressure cut-off valve 708. This open valve lets the control pressure of the motor and pump servo control relieve to the tank via the non-return valve 732 set to 4.6 bar. The motor swivels to maximum input volume. However, when the pressure in the high-pressure circuit remains at more than 420 bar, the pump swivels back to minimum volumetric displacement (minimum speed) at 4.6 bar control pressure. As the pump does not swivel fully to the neutral position, a small oil flow is displaced via the ground drive forward or backward multi-function valves 713, 714. This reduces the thermal load when driving in the maximum pressure range.

Oil cooling The oil tapped into the motor body via the ground drive tap pressure

control valve 719 is fed to the oil tank and the Venturi meter 442 via a connecting line. Along with the circulation oil flow of the steering system, a part of this heated oil is fed into oil cooler 109.


11/04 Jag-h-Kap05 5-11


5-12 Jag-h-Kap05 11/04

5.1.4 Testing and measurements Measuring points

Measuring point (902): Ground drive high-pressure backward

Measuring point (903): Ground drive high-pressure forward

Measuring point (908): Control pressure backward


11/04 Jag-h-Kap05 5-13

Measuring port Tee union, Claas spare part no. 239039.0 Elbow union, Claas spare part no. 238693.0 Minimess port, Claas spare part no. 683656.0

Measuring adapter Minimess port M 14 x 1.5 = 238 711.0 with 683 656.1

Measuring pre-conditions

Pressure measurements are carried out at minimum motor speed and at an oil temperature of 45 � 50 °C.

Pressure fed into the high-pressure circuit

• Ground speed control lever and transmission in neutral position. Set value: 20 + 4 bar at the measuring points (903) and (902). • Move ground speed control lever fully and transmission in neutral

position. Set value difference: 0 ... 1 bar at the measuring points (902) and (903).

High pressure measurement

• Engage transmission gear, • engage parking and service brake. • Move ground speed control lever slowly forward or backward to half

the end position for a maximum of 5 seconds. Set value: 420 ... 460 bar max. at the measuring points (902) and (903). During this measurement, the value on the corresponding low-pressure side measuring point (903) or (902) must not fall below 14 bar.

Forward control pressure measurement

• Install measuring port (908). • Switch transmission in neutral position. • Block the machine by actuating the service braking system and the

parking brake. • Move the ground speed control lever fully to the front. Set value: 11.5 bar for ground drive with HMV 105. Set value: 12.5 bar for ground drive with HMV 135.


5-14 Jag-h-Kap05 11/04

5.1.5 Venting the HPV pump / HMV motor control pressure circuit.

Venting valve (104)

• Switch off engine, remove ignition key.

• Switch transmission in neutral position. • Open venting valve 104 for approx. 2 turns. • Start motor and let it run at minimum rpm. • Block the machine by actuating the service braking system and the

parking brake. • Move ground speed control lever fully to the front for approx.

30 seconds. • Switch off engine, remove ignition key. • Close venting valve 104 and lock it with the sealing flange nut.

Further filling and venting instructions

For further filling and venting instructions please refer to the Repair Manual JAGUAR 492.


- from serial no.492 00133

up to serial no. 492 01613 5.2.1



5-16 Jag-h-Kap05 11/04

5.2 JAGUAR 20/25 km/h from serial no. 492 00133 up to serial no. 492 01613 5.2.1 Ground drive hydraulics circuit diagram


11/04 Jag-h-Kap05 5-17

Item Designation Remark Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature switch Normally open contact 102 Pressure filter 10 µm 104 Control pressure vent plug 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 105 / 85 cm³/rev. for 830, 850

135 / 85 cm³/rev. for 870, 890, 900 211 Ground drive variable displacement pump 105 cm³/rev. 218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 233 Silage additive pump 313 Ground drive pump servo control hydraulic cylinder 355 Ground drive motor servo control hydraulic cylinder 411 Orifice plate ∅ 1.8 mm 442 Venturi meter 609 Orbitrol steering unit rotary disc valve OSPC 250, mechanically actuated 615 Ground drive control pressure direction valve mechanically actuated 616 Ground drive control pressure speed valve mechanically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve 21+1 bar 732 Non-return valve hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated 738 Ground drive servo control forward/backward valve hydraulically actuated 742 Steering safety valve hydraulically actuated 902 Ground drive hydraulics high pressure backward measuring

point





5-18 Jag-h-Kap05 11/04


- from serial no. 4920 0011

up to serial no. 4920 0132 5.3.1



5-16 Jag-h-Kap05 11/04

5.3 JAGUAR 20/25 km/h from serial no. 4920 0011 up to serial no. 4920 0132 5.3.1 Ground drive hydraulics circuit diagram


11/04 Jag-h-Kap05 5-17

Item Designation Remark Z19 Hydraulic oil level switch (min.) Oil level OK, switch open Z20 Hydraulic oil temperature switch Normally open contact 102 Pressure filter 10 µm 104 Control pressure vent plug 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 205 Working hydraulics pump 19 cm³/rev. at n = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable displacement motor 211 Ground drive variable displacement pump See ESIS

218 Steering hydraulics pump 8 cm³/rev. at n = 2890 rpm 233 Silage additive pump 313 Ground drive pump servo control hydraulic cylinder 355 Ground drive motor servo control hydraulic cylinder 411 Orifice plate ∅ 1.8 mm 442 Venturi meter 609 Orbitrol steering unit rotary disc valve OSPC 250, mechanically actuated 615 Ground drive control pressure direction valve mechanically actuated 616 Ground drive control pressure speed valve mechanically actuated 708 Ground drive pressure cut-off valve hydraulically actuated 710 Ground drive filter bypass valve ∆p = 2 bar, hydraulically actuated 713 Ground drive multifunction valve backward valve 420 bar, hydraulically actuated 714 Ground drive multifunction valve forward valve 420 bar, hydraulically actuated 716 Ground drive feed pressure relief valve hydraulically actuated 718 Ground drive feed circuit cold weather starting valve hydraulically actuated 719 Ground drive tap pressure control valve hydraulically actuated 721 Ground drive oil tapping shuttle valve hydraulically actuated 725 Steering double shock valve hydraulically actuated 726 Steering pressure relief valve hydraulically actuated 728 Anti-cavitation valve (non-return valve) hydraulically actuated 729 Low-pressure hydraulics pressure relief valve 21+1 bar 732 Non-return valve hydraulically actuated 737 Ground drive servo control motor speed valve hydraulically actuated 738 Ground drive servo control forward/backward valve hydraulically actuated 739 Ground drive control pressure shuttle valve 742 Steering safety valve hydraulically actuated 902 Ground drive hydraulics high pressure backward measuring

point





5-18 Jag-h-Kap05 11/04

5.4 JAGUAR SPEEDSTAR/PROFISTAR

- with electro-hydraulic actuation (EFA) 5.4.1



5-20 Jag-h-Kap05 11/04

5.4 JAGUAR SPEEDSTAR/PROFISTAR with electro-hydraulic actuation (EFA) 5.4.1 Ground drive hydraulics circuit diagram


11/04 Jag-h-Kap05 5-21

Item Designation Remark Y141 Ground drive forward solenoid

coil The solenoid coil is actuated by the ground drive module (A49) in a modulated way. Solenoid coil actuated = modulated control pressure = forward. The magnetic force is opposed to the control pressure.

Y142 Ground drive backward solenoid coil

The solenoid coil is actuated by the ground drive module (A49) in a modulated way. Solenoid coil actuated = pressure at port (S) = backward

Y143 Ground drive/cut off valve solenoid coil

The solenoid coil is actuated by the ground drive module (A49). It is permanently energized when the ignition (+15) is ON = the non-return valve is closed. In case of a panic braking (brake force > 55 kg) Y143 is not energized = the control pressure for servo control is connected to the tank via the open non-return valve = the ground drive variable displacement pump (211) moves to zero displacement.

Y144 Ground drive variable displacement motor solenoid coil

The solenoid coil is actuated by the ground drive module (A49) in a modulated way and changes the swivel angle of the ground drive variable displacement motor (110).

Z19 Hydraulic oil level switch (min.) Oil level OK = switch open Z20 Hydraulic oil temperature switch Normally open contact Z46 Low-pressure hydraulics

switch / ground drive oil pressure

Monitors the pressure in the low-pressure hydraulics. Switch open = oil pressure OK Switch closed = oil pressure < 12 bar.

B97 Drive hydraulics forward high-pressure sensor

Permanently transmits the ground drive forward pressure to the ground drive module (A49). This signal controls the motor rpm and the swivel angle of the ground drive variable displacement motor (210).

B98 Drive hydraulics backward high-pressure sensor

Permanently transmits the ground drive backward pressure to the ground drive module (A49). This signal controls the motor rpm and the swivel angle of the ground drive variable displacement motor (210).

102 Pressure filter 10 µm 107 Oil drain 109 Hydraulic system oil cooler 110 Oil tank 112 Return flow filter 205 Working hydraulics pump 19 cm³/rev. = 2890 rpm 209 Ground drive feed pump 22.5 cm³/rev. at n = 2890 rpm 210 Ground drive variable

displacement motor 211 Ground drive variable

displacement pump

See ESIS

218 Steering hydraulics pump Volumetric displacement: 11 cm³/rev. Supplies volume flow for the steering system.

233 Silage additive pump (option) Is driven by the transfer gearbox. The circuit diagram shows the installation situation when the silage additive pump function is not needed. For information on the use of the silage additive pump, please refer to the corresponding fitting instructions.

313 Ground drive pump servo control hydraulic cylinder

Controls the swivel angle of the ground drive variable displacement pump (211).

355 Ground drive motor servo control hydraulic cylinder

Controls the swivel angle of the ground drive variable displacement motor (210).

413 Orifice plate ∅ 2.2 mm, the low-pressure hydraulics and the suction drive motor are supplied via this orifice plate.

442 Venturi meter Feeds a partial volume flow from the steering hydraulics circuit into the cooling circuit.

609 Orbitrol steering unit rotary disc valve

Is mechanically actuated by the steering wheel


5-22 Jag-h-Kap05 11/04

Item Designation Remark 710 Ground drive filter bypass valve Opens at a filter resistance of ∆p = 2 bar 713 Ground drive multi-function

valve backward - Pressure limitation: 420 bar - Feed for reloading into the closed circuit (replacing the

leakage losses) 714 Ground drive multi-function

valve forward - Pressure limitation: 420 bar - Feed for reloading into the closed circuit (replacing the

leakage losses) 716 Ground drive feed pressure

relief valve Opening pressure 24 bar. Determines the feed pressure.

718 Ground drive feed circuit cold weather starting valve

Opens at a pressure of > 30 bar (when oil is cold).

719 Ground drive tap pressure control valve

Starts opening at p = 10 bar

721 Ground drive oil tapping shuttle valve

Is actuated by the respective high-pressure circuit.

738 Ground drive servo control restrictor valve

In basic position, 2 compressed springs hold it exactly in centre position. Is controlled by the control pressure generated by the solenoid coils (Y141 or Y142). Actuates the 4/3 way valve mechanically.

757 Ground drive additional feed valve

Feeds additional volume flow into the feed and the low-pressure circuit when the pressure in port (Z) falls below 19 bar.

758 Ground drive restrictor valve Restricts the pressure drop in the ground drive pump servo control hydraulic cylinder (313) in case of a panic braking.

807 Line header P1 Volume flow input from pressure filter (102) P2 Output to the ground drive variable displacement motor

(210), input (E). P3 Output to suction arm drive motor (228) P4 Output to low-pressure hydraulics


11/04 Jag-h-Kap05 5-23


5-24 Jag-h-Kap05 11/04

5.4.2 Ground drive control Mechanical zero position As long as the ground drive variable displacement pump (211) is not

driven, it is in neutral position due to the mechanical zero position. The ground drive pump servo control hydraulic cylinder (313) is mechanically positioned in zero position by two pre-stressed compression springs, preventing the ground drive variable displacement pump (211) from providing volumetric displacement during the starting process. Pre-condition: the ground drive forward (Y141) and backward (Y142) solenoid coils are not energized. The setting of the mechanical zero position is carried out when installing the ground drive variable displacement pump (211) and cannot be modified from the outside.

Hydraulic zero position When the ground drive variable displacement pump (211) is driven, it is

kept in neutral position by means of hydraulic zero position. Pre-condition: the ground drive forward (Y141) and backward (Y142) solenoid coils are not energized. The feed pressure (p7) acts on both sides in the ground drive pump servo control hydraulic cylinder (313) via the centre position of the ground drive forward/backward servo control valve (738) and the ground drive restrictor valve (758) and centres it in neutral position. At the same time, the ground drive restrictor valve (758) is switched from the restricted into the unrestricted position. The setting of the hydraulic zero position is carried out on the Linde test bench.

Control motion In the initial position, the solenoid coils (Y141, Y142) are not energized.

Solenoid coil (Y143) is energized. The feed pressure (p7) is directed to the 2/2 way valves upstream of the restrictor. The servo control supply pressure (p8) downstream of the restrictor actuates the 2/2 way valves to through position. Due to this, feed pressure (p7) is applied to the non-actuated 4/2 way valves. At the same time, the ground drive restrictor valve (758) is switched from the restricted into the unrestricted position by the servo control supply pressure (p8). The ground drive variable displacement pump (211) is now in its hydraulic zero position.

Example E.g. when a current set by the electronic unit flows through the ground

drive forward solenoid coil (Y141), a corresponding magnetic force is generated which actuates the 4/2 way solenoid valve proportionally. A pressure is directed to the ground drive forward servo control valve (738) as a function of this actuation. The valve moves by a corresponding path. The volume displaced from the opposite side flows into the tank via the 4/2 way solenoid valve (Y142). Due to the mechanical coupling, the actuation of the ground drive forward/backward servo control valve (738) results in a corresponding actuation of the 4/3 way valve. This actuates the ground drive pump servo control hydraulic cylinder (313) which swivels the ground drive variable displacement pump (211) to the corresponding angle. When the electronic signal at the ground drive forward solenoid coil (Y141) is decreased, the proportional 4/2 way valve reduces the pressure to the ground drive forward/backward servo control valve (738) and the swivel angle of the ground drive variable displacement pump (211) becomes smaller.


11/04 Jag-h-Kap05 5-25

Ground drive/cut off valve solenoid coil (Y143)

The Ground drive/cut off valve solenoid coil (Y143) is de-energized in case of a panic braking (pedal force > 600 N) (see also Technical Systems � Electric System). When the ground drive/cut off valve solenoid coil (Y143) is de-energized, the magnetic needle is retracted. The ball lifts off from its seat and relieves the servo control supply pressure (p8) towards the tank. This has the following result: The 2/2 way valves of the solenoid coils (Y141 and 142) are switched back to blocked position and therefore take away the supply pressure to the proportional 4/2 way valves. This makes the latter return to their initial position. Since the servo control supply pressure (p8) applied at the ground drive forward/backward servo control valve (738) collapses, the compressed springs move this valve to its neutral position. The 4/3 way valve is moved to its centre position due to the mechanical link. Switching off the ground drive/cut off valve solenoid coil (Y143) creates a pressure drop downstream of (p8) and switches the ground drive restrictor valve (738) from the unrestricted to the restricted position. The ensures smooth deceleration since the return time of the ground drive pump servo control hydraulic cylinder (313) is longer.


5-26 Jag-h-Kap05 11/04

5.4.3 Components Ground drive variable displacement pump (211)

211 Ground drive variable displacement pump


11/04 Jag-h-Kap05 5-27


5-28 Jag-h-Kap05 11/04

5.4.3.2 Solenoid coil: Y141, Y142, Y143

The solenoid coil is actuated by the ground drive module (A49) in a modulated way. Solenoid coil actuated = modulated control pressure = forward. The magnetic force is opposed to the control pressure.

Y141 Ground drive forward solenoid coil Solenoid coil actuated = modulated control pressure build-up

= forward. Y142 Ground drive backward solenoid coil Solenoid coil actuated = pressure at port (S) = backward Y143 The solenoid coil is actuated by the ground drive module (A49). It is permanently energized when the ignition (+15) is ON = the

non-return valve is closed. In case of a panic braking (brake force > 55 kg), Y143 is not

energized (see also "Electric System chapter") = the control pressure for servo control is connected to the tank via the open non-return valve = the ground drive variable displacement pump (211) moves to zero displacement.

211 Ground drive variable displacement pump P, S Outputs to ground drive variable displacement motor (210)


11/04 Jag-h-Kap05 5-29


5-30 Jag-h-Kap05 11/04

5.4.3.3 Ground drive variable displacement motor (210)

210 Ground drive variable displacement motor

Y144 The ground drive variable displacement motor solenoid coil is

actuated by the ground drive module (A49) and changes the swivel angle of the ground drive variable displacement motor (210).

A Port. Volume flow generates counterclockwise rotation. B Port. Volume flow generates clockwise rotation.

In its initial position, the ground drive variable displacement motor (210)

is always set to maximum input volume and is adjusted continuously towards the minimum input volume. This control motion is electro-hydraulical and proportional to the actuation current of Y144.


11/04 Jag-h-Kap05 5-31

When the ground drive variable displacement motor solenoid coil (Y144) is not energized, the control pressure, via port (E), acts in the rod space of hydraulic cylinder (355) which positions the ground drive variable displacement motor (210) to maximum input volume. When the ground drive variable displacement motor solenoid coil (Y144) is energized, this current creates a proportional magnetic force which moves the spool and counteracts the spool spring. A control pressure is accordingly directed into the piston top space of hydraulic cylinder (355) which controls the swivel angle of the ground drive variable displacement motor (210) towards minimum input volume.


5-32 Jag-h-Kap05 11/04

5.4.3.4 Ground drive additional feed valve (757)

205 Working hydraulics pump: 19 cm³, nmax = 2890 rpm

218 Steering hydraulics pump: 11 cm³/rev. 757 Ground drive additional feed valve 916 Working hydraulics pump measuring point P5 Working hydraulics port T Tank port Z Additional feed port into feed pressure circuit and low-pressure

hydraulics. Function

When the pressure at port (Z) falls below 19 bar, the ground drive

additional feed valve (757) feeds an additional volume flow into the feed and the low-pressure circuits. In the initial position (see circuit diagram), the following circuits are supplied: • The high-pressure circuit (port P5) and • The feed pressure circuit and/or the low-pressure circuit (port Z).


11/04 Jag-h-Kap05 5-33

When the pressure in port (Z) rises above 19 bar, the valve switches and supplies the working hydraulics exclusively via port (P5). When the pressure in port (Z) falls below 19 bar, the valve switches to its initial position. Now a partial volume flow flows via port (Z) into the feed pressure circuit and into the low-pressure hydraulics. This condition is maintained until the pressure in port (Z) rises above 19 bar.

5.4.3.5 Ground drive filter bypass valve (710)

710 Ground drive filter bypass valve


5-34 Jag-h-Kap05 11/04

5.4.3.6 Pressure switches B97 and B98

B98 Drive hydraulics backward high-pressure sensor. The drive

hydraulics forward high-pressure sensor (B97) is installed on the opposite side.

102 Pressure filter Task The ground drive hydraulics forward (B97) and backward (B98) high-

pressure sensors are installed in the pressure outlets of the ground drive variable displacement pump (211). The ground drive hydraulics forward high-pressure sensor B97 permanently transmits the ground drive pressure to the ground drive module (A49). This signal controls the motor rpm and the swivel angle of the ground drive variable displacement motor (210). The ground drive hydraulics backward high-pressure sensor B98 permanently transmits the ground drive pressure to the ground drive module (A49). This signal controls the motor rpm and the swivel angle of the ground drive variable displacement motor (210).


11/04 Jag-h-Kap05 5-35

5.4.3.7 Line header (807)

Item Designation Remark 102 Pressure filter 413 Orifice plate ∅ 2.2mm 807 Line header Z46 Pressure switch 12 bar NC contact. Monitors the pressure in the low-pressure

hydraulics. P1 Volume flow input from pressure filter (102) P2 Output to the ground drive variable displacement motor (210), input (E). P3 Output to suction arm drive motor (228) P4 Output to low-pressure hydraulics


5-36 Jag-h-Kap05 11/04

5.4.3.8 Venturi meter

Oil cooling The oil tapped into the motor body via the ground drive tap pressure

control valve (719) is fed to the oil tank and the Venturi meter 442 via a connecting line. Along with the circulation oil flow of the steering system, a part of the heated oil is fed into oil cooler 109. a Input from Orbitrol steering unit rotary disc valve (609) port (T) b Output to oil cooler (109) c Output to the ground drive variable displacement motor (110),

port (E).


11/04 Jag-h-Kap05 5-37

5.4.4 Diagram: Propulsive power (F) / Ground speed (v)

Curve a The first forward gear is engaged, speed control lever is moved from its 0 position to the front. Curve section 1: When starting, the ground drive variable displacement pump HPV swings from a volumetric displacement of 0 towards maximum displacement. The ground drive variable displacement motor HMV stands at its maximum input volume. Now: - maximum propulsive power is reached; - the max. ground speed is approx. 7.5km/h. Curve section 2: The ground drive variable displacement pump HPV stands at maximum displacement. The ground drive variable displacement motor HMV swivels from its maximum input volume to approx. 98cm³/rev. of input volume. Now: - the propulsive power decreases; - the ground speed increases up to approx. 16.5km/h.

Curve b The second forward gear is engaged,

the ground speed control lever is moved from its 0 position to the front. Curve section 3: When starting, the ground drive variable displacement pump HPV swings from a volumetric displacement of 0 towards maximum displacement. The ground drive variable displacement motor HMV stands at its maximum input volume. Now: - the propulsive force is smaller than in the first gear - the max. ground speed is approx. 19 km/h. Curve section 4: The ground drive variable displacement pump HPV stands at maximum displacement. The ground drive variable displacement motor HMV swivels from its maximum input volume to approx. 98cm³/rev. of input volume. Now: - the propulsive power decreases; - the ground speed increases up to approx. 40km/h.


5-38 Jag-h-Kap05 11/04

5.4.5 Testing and measurements Pressure testing with the high-pressure sensors B97 and B98, using the display of the CIS terminal Note: Set cursor in CIS to the ground speed control lever symbol

(see Operator's Manual).

Volt display: B97 Drive hydraulics forward high-pressure sensor

Volt display: B98 Drive hydraulics backward high-pressure sensor


11/04 Jag-h-Kap05 5-39

Measuring values table of high-pressure sensors B97 and B98

Pressure Volt 0 bar 0.2 � 0.3 Volt 20 bar 0.4 Volt 30 bar 0.4 � 0.5 Volt 40 bar 0.5 � 0.6 Volt 100 bar 1.0 Volt 200 bar 1.7 � 1.8 Volt 300 bar 2.5 Volt 400 bar 3.2 � 3.3 Volt 420 bar 3.4 Volt 440 bar 3.5 Volt 450 bar 3.6 Volt 460 bar 3.7 Volt

Function testing of sensors:

With the motor shut off and vehicle brakes applied • Switch on the ignition • Set cursor in CIS to the ground speed control lever symbol

(see Operator's Manual). The CIS displays 0.2 � 0.3 Volt on the measuring values displays (B97) and (B98) which corresponds to a sensor display of 0 bar. (see table).

Measuring pre-conditions for pressure tests:

Set cursor in CIS to the ground speed control lever symbol (see Operator's Manual). Pressure measurements are carried out at minimum motor speed and at an oil temperature of 45 � 50 °C.

Pressure fed into the high-pressure circuit

• Ground speed control lever and transmission in neutral position. Set value: 20+4 bar on the measuring value displays B97 and B98 (see table).

High pressure measurement

• Engage second gear, • apply parking brake. • Move ground speed control lever slowly forward or backward to half

the end position for a maximum of 5 seconds. Note: During this high-pressure measurement, the pump is in limiting mode

(maximum pressure control). The Volt display in the CIS varies, the highest value being decisive for the measurement. Set value: 420 ... 460 bar on the measuring value displays B97 and B98 (see table). During this process, the value on the corresponding low-pressure side measuring value displays B97 or B98 must not fall below 20 bar (see table).


5-40 Jag-h-Kap05 11/04

TIC JAGUAR 6. Float position

11/04 Jag-h-Kap06 6-1

6 Float position

6.1 Working method...................................................................... 6-2

6.2 Operation ................................................................................ 6-3

6.3 Sensors................................................................................... 6-5

6.4 Function ...................................................................................6-6

6. Float position JAGUAR TIC

6-2 Jag-h-Kap06 11/04

6.1 Working method

Pitching may occur during transport travel with heavy front attachments

mounted. This applies particularly when travelling at high speeds on uneven roads. This • considerably reduces the driving comfort, • reduces the driving safety and • causes high dynamic loads on mechanical components. The pitching modifies the pressure in the front attachment hydraulic cylinders. These pressure changes are detected by a pressure sensor, transmitted into the CONTOUR module as a signal and evaluated there. The CONTOUR module actuates the solenoid valves for raising or lowering the front attachment as a function of these signals. Pitching is counteracted by slightly raising or lowering the front attachment. • The float position offers the following benefits: • high driving comfort • safe vehicle handling • lower mechanical loads


11/04 Jag-h-Kap06 6-3

6.2 Operation

6.2.1 Learning the centre

pitching axis 1. Switch off the main drive switch (S25).

2. Set switch (S52) to road travel position. 3. Raise the front attachment to a height of approx. 400 mm. 4. Keep the CAC switch (S38) "Cutting height control/Automatic ground pressure control" pressed for approx. 5 seconds until a threefold warning tone is heard. The position of the centre pitching axis has now been learned. In this front attachment position, • Sensor (B2) "Ground pressure oil pressure" detects the pressure in

the hydraulic cylinders "Raise/lower front attachment". • Sensor (B35) "Feed rake conveyor position" detects the front

attachment position. Both signals are transmitted to the CONTOUR module (A11). The learned "centre pitching axis" is permanently saved in the CONTOUR module (A11). It will not be deleted by switching the ignition OFF and ON. The existing value can only be overwritten by another learning procedure.

6.2.2 Activating the float

position

1. Switch off the main drive switch (S25).

2. Switch on road travel switch (S52). 3. Raise the front attachment to an arbitrary height. 4. Press CAC switch (S38) "Cutting height control/Automatic ground

pressure control". The front attachment is now moved to the "centre pitching axis" position.


6-4 Jag-h-Kap06 11/04

The activated float position is identified by the letters "A" (see arrows) in

the display. The left-hand bar graph shows the ground pressure and the right-hand bar chart the position of the front attachment. Pitching is deactivated by manually raising or lowering the front attachment.


11/04 Jag-h-Kap06 6-5

6.3 Sensors

B2 The "Ground pressure oil pressure" sensor is mounted at the

front right-hand side on the feed rake conveyor. It detects the pressure in the "Raise/lower front attachment" hydraulic cylinders and transmits the signal to the CONTOUR module (A11). B35 The "Feed rake conveyor position" sensor is mounted at the front right-hand side on the feed rake conveyor. It detects the front attachment position and transmits the signal to the CONTOUR module (A11).


6-6 Jag-h-Kap06 11/04

6.4 Function

Example: The following example explains the working method of the float position:

After the centre pitching axis has been learned, the pressure in the "Raise/lower front attachment" hydraulic cylinders is 100 bar. This pressure is detected by sensor (B2) "Ground pressure oil pressure". A pressure tolerance range of +/- 20 bar is stored in the CONTOUR module (A11). The pressure peaks occurring during road travel (curve a) are outside of the pressure tolerance range. The CONTOUR module actuates the solenoid valves for raising or lowering the front attachment correspondingly. Slightly raising or lowering the front attachment counteracts the pitching to such an extent that the pressure remains within the stored pressure tolerance range of +/- 20 bar (curve b). When the pressure is within the stored pressure tolerance range of +/- 20 bar, but the front attachment moves away too much from the centre pitching axis during its compensating motions, it is returned by the position sensor.

TIC JAGUAR 7. Compressed-air system

11/04 Jag-h-Kap07 7-1

7 Compressed-air system

7.1 Trailer brake system circuit diagram....................................... 7-2

7.2 Motor restrictor / compressed-air coupling ............................. 7-6

7. Compressed-air system JAGUAR TIC

7-2 Jag-h-Kap07 11/04

7.1 Trailer brake system circuit diagram


11/04 Jag-h-Kap07 7-3

Key to diagram:

1 Compressor ...................................................(350 � 380 cm3) 2 Pressure control valve ...................................(12.5 bar) 3a Air accumulator (20 litres) 3b Air accumulator (20 litres) 4 Frost protection pump 5 Dewatering valve (automatic) 6 Pressure gauge (10 bar) in the cab 7 Pressure relief valve (8 bar) 8 Trailer control valve (2-wire) 9 Accumulator service line hose coupler (red) 10 Brake service line hose coupler (yellow) 11 Safety valve (14 bar) 12 Relief valve (8.5 bar) 13 Relief valve (6 bar) 14 Compressed-air coupling 15 Solenoid valve (proportional) Y100-1 16 Pressure gauge (16 bar) 17 Solenoid valve (4/2-way) Y100-2 18 Shuttle valve a Brake pressure input (service brake) b Engine brake port (depending on equipment fitted)


7-4 Jag-h-Kap07 11/04

Description of function: 1/2 1 Compressor The compressor is permanently driven by the diesel engine and conveys

compressed air into the system. Compressor start at p < 11.5 bar Compressor stop at p > 12.5 bar - for controlled compressors.

2 Pressure control valve -Controlled compressor:

The pressure control valve controls the compressor and consequently the operating pressure.

-Uncontrolled compressor:

The operating pressure is adjusted directly by the pressure control valve.

4 Frost protection pump Automatic injection of antifreezing agent into the brake system to protect

it against freezing of tubes and downstream units. 5 Dewatering valve Automatic draining of condensate from the air accumulator. 6 Pressure gauge Displays the pressure in the accumulator circuit (target value = 8 bar). 7 Pressure relief valve Limits the pressure (output 2) in the accumulator circuit to 8 bar.

This pressure is applied to the following components: - Pressure gauge 6 - Accumulator service line hose coupler (red) 9 - Trailer control valve 8, port 1 - Solenoid valve 15 (Y100-1), port 1 - Solenoid valve 17 (Y100-2), port 1

8 Trailer control valve The trailer control valve is actuated hydraulically by the liquid pressure in

the service brake system (ports 41 and 42). Actuation starts at 8 bar of liquid pressure in the service brake system. Full actuation at 35 bar of liquid pressure in the service brake system. Depending on the actuation, compressed air (output 2) is transported to solenoid valve (15), input 4, via the shuttle valve (18).

9 Accumulator service line

hose coupler A pressure of 8 bar is constantly applied here.

10 Brake service line hose

coupler Connection of brake line between tractor and trailer (8 bar max.)

11 Safety valve Safeguards the compressed air system at 14 bar.


11/04 Jag-h-Kap07 7-5

Description of function: 1/2 12 Relief valve Safeguards the pressure in the air accumulator (3b) at 8.5 bar min. 13 Relief valve Safeguards the pressure in the air accumulator (3a) at 6 bar min. 14 Compressed-air

coupling Port for external compressed-air consumers (cleaning, tyres, �)

15 Solenoid valve (Y100-1) Governs the building-up of pressure at the service line hose coupler (10)

while braking. The following control modes apply: a) pneumatic = Control pressure from trailer brake valve (8) or from the solenoid valve (17=Y100-2) b) electrical = Signal upon pulling back (deceleration) of ground speed control lever.

16 Pressure gauge Displays the pressure in the air accumulator (target value = 12.5 bar). 17 Solenoid valve (Y100-2) For braking, this valve passes the applied pressure of 8 bar (port 1) on to

solenoid valve (15, port 4). No electrical triggering of solenoid valve (17):

The passage from port 1 to port 2 is open when: - the ignition is OFF - and/or the parking brake is actuated.

Electrical triggering of solenoid valve (17):

The passage from port 1 to port 2 is closed when: - the ignition is ON - and/or the parking brake is not actuated.

18 Shuttle valve Directs either the pressure from the trailer control valve (8, port 2) or the

solenoid valve (17=Y100-2, port 2) to solenoid valve (15=Y100-1, port 4).


7-6 Jag-h-Kap07 11/04

7.2 Motor restrictor / compressed-air coupling


11/04 Jag-h-Kap07 7-7

Key to diagram:

1 Compressor (350 � 380 cm3) 2 Pressure control valve (12.5 bar) 3b Air accumulator (20 litres) 4 Frost protection pump 5 Dewatering valve (automatic) 11 Safety valve (14 bar) 12 Relief valve (8.5 bar) 14 Compressed-air coupling 16 Pressure gauge (16 bar) b Engine brake port (depending on equipment fitted)

Description of function: 1 Compressor The compressor is permanently driven by the diesel engine and conveys

compressed air into the system. Compressor start at p < 11.5 bar Compressor stop at p > 12.5 bar

2 Pressure control valve Controlled compressor:

The pressure control valve controls the compressor and consequently the operating pressure.

Uncontrolled compressor:

The operating pressure is adjusted directly by the pressure control valve.

4 Frost protection pump Automatic injection of antifreezing agent into the brake system to protect

it against freezing of tubes and downstream units. 5 Dewatering valve The dewatering valve serves for automatically draining the condensate

collected in the air accumulator. 11 Safety valve Safeguards the compressed-air brake system at 14 bar max. 12 Relief valve Safeguards the pressure in the air accumulator (3b) at 8.5 bar min. 14 Compressed-air

coupling Port for external compressed-air consumers (cleaning, tyres, �)

16 Pressure gauge Displays the pressure in the air accumulator - target value 12.5 bar.


7-8 Jag-h-Kap07 11/04

Index

JAGUAR TIC

Index-2 Jag-h-in 11/04

Index:

A Accumulator ..................................................... 3-12 Accumulator circuit........................................... 3-31 Accumulator volume switching-over ................ 3-30 Additional control unit ...................................... 3-16 Additional feed ................................................ 5-36 Autopilot ........................................................... 2-10 B Bypass valve.................................................... 5-37 C Circuit diagram................................................. 5-4, 5-16, 5-20, 5-24 Compressed-air coupling................................. 7-8 Compressed-air system ................................. 7-1 Corn Cracker .................................................. 3-18 D Direct � Disc..................................................... 3-30 E Emergency steering......................................... 2-7 F Filling and venting instructions......................... 5-14 Float position.................................................... 6-1 Flow control valve ........................................... 3-11, 4-20 G Ground drive control ........................................ 5-28 Ground drive hydraulics................................... 5-1 Ground drive control ........................................ 5-28 H High-pressure measurement ........................... 5-43 High-pressure sensors..................................... 5-43 Hitch................................................................. 3-14 HMV motor....................................................... 5-7 HPV pump........................................................ 5-7 Hydraulic circuit diagram ................................. 1-4, 2-2, 3-4, 4-2 K Knife support.................................................... 4-26 L Line header ...................................................... 4-24, 5-39 Load switch-over.............................................. 3-28 M Main valve........................................................ 3-8 Master valve .................................................... 3-8 Measured value table ...................................... 5-43 Motor restrictor ............................................... 7-8 P Pressure control............................................... 5-10 Pressure limitation ........................................... 1-28, 3-17 Pressure relief valve ...................................... 3-9, 4-14 Propulsive power ............................................. 5-6, 5-41 Pulse width modulation ................................... 3-10 R Raise/lower front attachment ........................... 3-8 Reverse front attachment ................................ 3-22 Reverser drive.................................................. 3-24

TIC JAGUAR

11/04 Jag-h-in Index-3

S Sharpening .............................................................. 3-16 Shifter rail locking .................................................... 4-18 Shut-off valve........................................................... 5-29 Steering actuation.................................................... 2-6 Steering hydraulics .................................................. 2-1 Suction arm drive..................................................... 4-22 T Trailer brake system................................................ 7-3 U Upper discharge chute ............................................ 3-26 V Valve combination ................................................... 3-10 Valve inserts ........................................................... 1-22 Variable displacement motor ................................... 5-34 Venting..................................................................... 3-19, 4-19, 5-14 Venturi nozzle.......................................................... 5-40 W Working hydraulics .................................................. 3-1

JAGUAR TIC

Index-4 Jag-h-in 11/04

Following the policy of the CLAAS KGaA mbH to improve their products as technical developments continue, CLAAS reserve the right to make alterations which must not necessarily correspond to text and illustrations contained in this publication, and without incurring obligation to alter any machines previously delivered. Technical data, dimensions and weights are given as an indication only. Responsibility for errors or omissions not accepted. Reproduction or translation of this publication, in whole or part, is not permitted without the written consent of the CLAAS KGaA mbH. All rights under the provision of the Copyright Act reserved. CLAAS KGaA mbH 33426 Harsewinkel Germany

Our contribution to the environment: CLAAS have printed this manual on 100 % chlorine free paper.

CLAAS KGaA mbH Postfach 1163 33426 Harsewinkel Tel. +49 (0)5247 12-0 www.claas.com

0298 712.3 SYS-H JAGUAR 900-830 EN - 03.05 - NF Printed in Germany

Documents

0298_712_3_sys_hy_en_144