Claas Dominator 140, Dominator 150 Service Manual

Dominator 140 Dominator 150

Technical Systems

Hydraulic System

TIC Dominator 140 - 150 Hydraulic System

301 3-D sieve pan hydraulic cylinder 311 Threshing drum variable-speed drive hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 314 Reel raise/lower slave cylinder 315 Reel raise/lower main cylinder 316 Horizontal reel adjustment hydraulic cylinder 320 Swing grain tank unloading tube hydraulic cylinder 323 Steering hydraulic cylinder 351 Raise/lower front attachment hydraulic cylinder 353 Reverse front attachment hydraulic cylinder

406 Orifice plate............................................................. Ø 0.8 mm

410 Orifice plate ............................................................ Ø 1.5 mm

441 Rotary coupling

601 3D sieve pan pendulum control 4/3 way valve 606 Ground drive servo control 4/3 way valve 609 Orbitrol steering system rotary valve 614 Front attachment lower flow control valve

04/04 DO-h-Kap1 1-5

Overall Hydraulic System Dominator 140 - 150 TIC

10

Key to diagram:

703 Working hydraulics pressure relief valve................ 180

710 Ground drive filter bypass valve ............................. 2 bar

+

713 Ground drive multi-function valve, reverse ............. 420 bar

714 Ground drive multi-function valve, forward ............. 420 bar

716 Ground drive feed pressure relief valve.................. 19 bar

718 Ground drive feed circuit cold start injector ............ 25 bar

719 Ground drive flush pressure control valve.............. 10 bar

721 Ground drive flush-out shuttle valve

725 Steering double shock valve................................... 150

726 Steering pressure relief valve ................................. 90

+5

+15

bar

728 Anti-cavitation valve (non-return valve) 732 Non-return valve 734 Lock-up valve unit (non-return valve) 742 Steering safety valve 743 Front attachment lower valve 759 One-way restrictor valve, two-sided

801 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 904 Ground drive hydraulics feed pressure measuring point 909 Steering hydraulics measuring point

Y19 Threshing drum variable-speed drive slow solenoid valve Y20 Threshing drum variable-speed drive fast solenoid valve Y22 Reel raise solenoid valve Y23 Reel lower solenoid valve Y24 Reel forward solenoid valve Y25 Reel reverse solenoid valve Y33 Grain tank unloading tube swing out solenoid valve Y34 Grain tank unloading tube swing in solenoid valve Y77 Working hydraulics master valve solenoid valve Y85 Raise front attachment solenoid valve Y86 Reverse front attachment solenoid valve Y87 Lower front attachment solenoid valve

1-6 DO-h-Kap1 04/04

1.2

Overall hydraulic system circuit diagram

without 3D sieve pan

Overall Hydraulic System Dominator 140 - 150 TIC

1.2 Overall hydraulic system circuit diagram without 3D sieve pan

1-8 DO-h-Kap1 04/04

TIC Dominator 140 - 150 Overall Hydraulic System

Key to diagram:

I Master valve working hydraulics valve block II Front attachment / threshing drum variator working hydraulics

valve block III Grain tank unloading tube working hydraulics valve block IV Front attachment reverse working hydraulics valve block V Orbitrol steering hydraulics VI Ground drive hydraulics hydrostatic pump VII Ground drive hydraulics hydrostatic motor

102 Pressure filter........................................................ 10 µm

107 Oil drain 109 Oil cooler 110 Oil tank 112 Return filter

205 Working hydraulics pump ..................................... 10.8 cm

207 Ground drive fixed displacement motor HMF 75 .. 75 cm

209 Ground drive feed pump ....................................... 22.5 cm

211 Ground drive variable displacement pump

HPV 75 ....................................................... 75 cm

218 Steering hydraulics pump ..................................... 6 cm

3

/rev.

3

/rev.

3

/rev.

3

/rev.

3

/rev.

226 Front attachment reverser drive motor

311 Threshing drum variable-speed drive hydraulic cylinder 313 Ground drive servo control pump hydraulic cylinder 314 Reel raise/lower slave cylinder 315 Reel raise/lower main cylinder 316 Horizontal reel adjustment hydraulic cylinder 320 Swing grain tank unloading tube hydraulic cylinder 323 Steering hydraulic cylinder 351 Raise/lower front attachment hydraulic cylinder 353 Reverse front attachment hydraulic cylinder

406 Orifice plate........................................................... Ø 0.8 mm

410 Orifice plate .......................................................... Ø 1.5 mm

441 Rotary coupling

606 Ground drive servo control 4/3 way valve 609 Orbitrol steering system rotary valve 614 Front attachment lower flow control valve

04/04 DO-h-Kap1 1-9

Overall Hydraulic System Dominator 140 - 150 TIC

10

Key to diagram:

703 Working hydraulics pressure relief valve ...............180

710 Ground drive filter bypass valve ............................2 bar

+

713 Ground drive multi-function valve, reverse ............420 bar

714 Ground drive multi-function valve, forward ............420 bar

716 Ground drive feed pressure relief valve.................19 bar

718 Ground drive feed circuit cold start injector ...........25 bar

719 Ground drive flush pressure control valve.............10 bar

721 Ground drive flush-out shuttle valve

725 Steering double shock valve..................................150

726 Steering pressure relief valve ................................90

+5

+15

bar

728 Anti-cavitation valve (non-return valve) 732 Non-return valve 734 Lock-up valve unit (non-return valve) 742 Steering safety valve 743 Front attachment lower valve 759 One-way restrictor valve, two-sided

801 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 904 Ground drive hydraulics feed pressure measuring point 909 Steering hydraulics measuring point

Y19 Threshing drum variable-speed drive slow solenoid valve Y20 Threshing drum variable-speed drive fast solenoid valve Y22 Reel raise solenoid valve Y23 Reel lower solenoid valve Y24 Reel forward solenoid valve Y25 Reel reverse solenoid valve Y33 Grain tank unloading tube swing out solenoid valve Y34 Grain tank unloading tube swing in solenoid valve Y77 Working hydraulics master valve solenoid valve Y85 Raise front attachment solenoid valve Y86 Reverse front attachment solenoid valve Y87 Lower front attachment solenoid valve

1-10 DO-h-Kap1 04/04

TIC Dominator 140 - 150 Overall Hydraulic System

1.3 Technical data

Working hydraulics Dominator 140 -150 Sense of rotation = Counterclockwise

Drive n

Power = 33 l/min at 10.8 cm3/rev.

max

= 3092 rpm

Steering hydraulics Dominator 140 -150 Sense of rotation = Counterclockwise

Drive n

Power = 18.5 l/min at 6 cm3/rev.

max

= 3092 rpm

Linde ground drive Dominator 140 -150 Sense of rotation = Counterclockwise

Drive n Power approx. = 230 l/min at 75 cm3/rev.

max

= 3092 rpm

Linde feed pump Dominator 140 -150 Sense of rotation = Counterclockwise

Drive n

max

= 3092 rpm

Power = 69.5 l/min at 22.5 cm3/rev.

Note: The exact pump output can only be determined using a flowmeter.

During this measurement, the output under maximum system pressure and at operating temperature (60°C) may fall by 15% max.

04/04 DO-h-Kap1 1-11

Overall Hydraulic System Dominator 140 - 150 TIC

1-12 DO-h-Kap1 04/04

TIC Dominator 140 - 150 Hydraulic System

Chapter 2

Steering hydraulics

2.1 Steering hydraulics circuit diagram.......................................... 2-4

2.2 Steering valve unit ................................................................... 2-6

2.3 Function of steering ................................................................. 2-8

2.4 Checking the steering ............................................................ 2-12

04/04 DO-h-Kap2 2-1

Hydraulic System Dominator 140 - 150 TIC

2-2 DO-h-Kap2 04/04

2.1

Steering hydraulics circuit diagram

Hydraulic System Dominator 140 - 150 TIC

2.1 Steering hydraulics circuit diagram

Key to diagram:

V Orbitrol steering hydraulics VI Ground drive hydraulics hydrostatic pump

107 Oil drain 110 Oil tank

205 Working hydraulics pump 209 Ground drive feed pump 211 Ground drive variable displacement pump 218 Steering hydraulics pump

323 Steering hydraulic cylinder

609 Orbitrol steering system rotary valve

718 Ground drive feed circuit cold start injector...................... 25 bar

725 Steering double shock valve ...................................... 150

726 Steering pressure relief valve......................................... 90

+15

+5

bar bar

728 Anti-cavitation valve (non-return valve) 742 Steering safety valve

909 Steering hydraulics measuring point

Pressure measurement :

Neutral circulation pressure = < 20 bar

System pressure = 90 Shock valve = 150

+15

+5

bar

Note: These values refer to measurements made at the max. no-load

speed of the diesel engine and a hydraulic oil operating temperature of approx. 60°C.

2-4 DO-h-Kap2 04/04

TIC Dominator 140 - 150 Hydraulic System

Description of function:

Steering In the neutral steering position, oil flows freely through the

Turning the steering wheel to one direction causes the spools to rotate

At a rotation of 1.5°, the channels to the chambers start opening. At 4°, the neutral position channels are completely closed. At 6°, the channels to the chambers are fully open. The rotation of the spools relative to each other is limited to ± 8°.

Rotation of rotor: Feed of an oil quantity which is proportional to the

steering control unit = Orbitrol (609).

relative to each other.

A feed of pressurized oil to the rotor set has the following effects:

rotation into the steering cylinder, the rear wheels being influenced. An internal mechanical return from the rotor to the outside spool so that the channels in the valve are closed when the rotor rotates to the same angle as the steering wheel.

04/04 DO-h-Kap2 2-5

Hydraulic System Dominator 140 - 150 TIC

2.2 Steering valve unit

2-6 DO-h-Kap2 04/04

TIC Dominator 140 - 150 Hydraulic System

Key to diagram:

112 Return filter (not installed)

218 Steering hydraulics pump ...........................................6 cm

3

229 Steering hydraulics proportioning pump 323 Steering hydraulic cylinder 609 Orbitrol steering system rotary valve

725 Steering double shock valve....................................... 150

726 Steering pressure relief valve ..................................... 90

+5

+15

bar

bar 728 Anti-cavitation valve (non-return valve) 742 Steering safety valve 909 Steering hydraulics measuring point

Steering system

Open center: with the steering in neutral position, there is a connection

between pump P2 and the 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.

Valve unit

DANFOSS OSPB 125

O = Orbit (Orbitrol) S = Steering P = Pump B = Version 125 = Oil displacement in cm

3

/rev.

Design of valve unit

The steering valve consists of a steering hydraulics proportioning pump

(229) and an Orbitrol rotary valve (609).

The Orbitrol rotary valve (609) is actuated by the steering gear shaft. Continued rotary movement of the steering gear shaft drive the steering hydraulics proportioning pump (229) by means of a socket-type shaft.

04/04 DO-h-Kap2 2-7

Hydraulic System Dominator 140 - 150 TIC

2.3 Function of steering

Neutral

2-8 DO-h-Kap2 04/04

TIC Dominator 140 - 150 Hydraulic System

Description of function:

Neutral In neutral position, the oil is directed back to the tank via the steering

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

04/04 DO-h-Kap2 2-9

Hydraulic System Dominator 140 - 150 TIC

Steering actuation

2-10 DO-h-Kap2 04/04

TIC Dominator 140 - 150 Hydraulic System

Description of function:

Steering actuation When actuating the steering to one or another direction, the Orbitrol rotary

disc (609) is rotated by up to 8° relative to the outside spool. During this process, the return line from the steering hydraulics pump (218) to the tank is closed and the connection to the steering hydraulics proportioning pump (229) is released.

Via the steering hydraulics proportioning pump (229) and the Orbitrol rotary disc (609), the volume flow is released as a function of the sense of rotation, path and speed of steering wheel motion to the ram or the ram ring surface of the steering hydraulic cylinder (323). Here, the displacing surface of the steering hydraulic cylinder (323) is connected with the return line to the tank via the Orbitrol rotary disc (609).

As soon as there is no more steering motion, leaf springs bring the outer rotary disc of the Orbitrol rotary disc (609) back to neutral position. Now both sides of the steering cylinder are shut off again and the connection from the steering hydraulics pump (218) to the tank is re-established.

Emergency steering When the steering system is not supplied any more by the steering

hydraulics pump (218), the steering safety valve (742) closes and thus ensures that no oil will escape from the steering system.

When the steering is actuated, the inner and outer disc of the Orbitrol rotary disc (609) are rotated relative to each other. Now the oil can be conveyed from one side of the steering hydraulic cylinder (323) via anticavitation valve (non-return valve) (728) to the other side through human power by the drive of the steering hydraulics proportioning pump (229).

04/04 DO-h-Kap2 2-11

Hydraulic System Dominator 140 - 150 TIC

2.4 Checking the steering

Steering gear shaft Height play = 0.1 to 0.3 mm

Clearance from bottom inside rotary disc = 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/minute in both directions when using a force of approx. 25 Nm. When the actual number of turns is more than 4/minute, check the steering valve for leaks. When the actual number of turns is below 4/minute, check the steering cylinder for leaks.

Power In case of steering forces above 25 Nm, check tyre size and pressure,

condition of the cylinder rod and if stub axles move smoothly. A pressure test at the steering hydraulics measuring port must show the value 90

+5

bar. To this end move the steering wheel up to the stop and hold it in this position. Adjusting the pressure relief valve on the machine in built-in condition is not possible.

Important! 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.

2-12 DO-h-Kap2 04/04

TIC Dominator 140 - 150 Hydraulic System

Chapter 3

Working hydraulics

3.1

Working hydraulics circuit diagram .......................................... 3-4

3.2

Main valve................................................................................ 3-6

with master valve, pressure relief valve,

raise/lower front attachment .................................................... 3-6

3.3

Threshing drum speed control

3/3 way solenoid valve Y19/Y20............................................ 3-12

Hydraulic cylinder with rotary coupling .................................. 3-14

3.4 Vertical reel adjustment ......................................................... 3-16

3/3 way valve Y22/Y23 .......................................................... 3-16

Hydraulic cylinders................................................................. 3-18

3.5

Horizontal reel adjustment ..................................................... 3-20

4/3 way valve Y24/Y25 .......................................................... 3-20

Hydraulic cylinders................................................................. 3-22

Lock-up valve unit (734) ........................................................ 3-24

3.6

Swinging the grain tank unloading tube................................. 3-26

4/3 way valve Y33/Y34 .......................................................... 3-26

Hydraulic cylinders................................................................. 3-28

Lock-up valve unit (734) ........................................................ 3-30

3.7 Reverse front attachment ...................................................... 3-32

3/2-way valve Y86.................................................................. 3-32

Hydraulic cylinders................................................................. 3-34

04/04 DO-h-Kap3 3-1

Hydraulic System Dominator 140 - 150 TIC

3-2 DO-h-Kap2 04/04

Claas Dominator 140, Dominator 150 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1.3 Technical data

Steering hydraulics circuit diagram

2.2 Steering valve unit

2.3 Function of steering