CLAAS Axion 850-810 Diagnostics Repair Manual - PDF DOWNLOAD

D1 SUSPENDED FRONT AXLE D2 MANAGEMENT OF DIFFERENTIALS D3 4 WHEEL DRIVE D4 RIGID FRONT AXLE

Technical support Axion 850-810

Diagnostics – Chapter D 00 1136 265 1 – Edition 09.2010

CONTENTS

D1 – SUSPENDED FRONT AXLE GENERAL DESCRIPTION DESCRIPTION ............................................................................................................................................................... D1.2 CHARACTERISTICS...................................................................................................................................................... D1.3 FRONT/REAR INTER-AXLE RATIO .............................................................................................................................. D1.4 OPERATING LAWS ....................................................................................................................................................... D1.5 Architecture A, B or C ..................................................................................................................................................... D1.6 Architecture D, E, F or G ................................................................................................................................................ D1.7

FRONT SUSPENSION CHECK MEASUREMENTS AND CHECKS................................................................................................................................. D1.8 Front suspension check.................................................................................................................................................. D1.8

MOVEMENT TRANSMISSION DESCRIPTION ............................................................................................................................................................... D1.9 DIAGRAM ....................................................................................................................................................................... D1.9 MECHANICAL PART.................................................................................................................................................... D1.10 Description.................................................................................................................................................................... D1.10 Diagram ........................................................................................................................................................................ D1.11 FRONT DIFFERENTIAL............................................................................................................................................... D1.12 Description.................................................................................................................................................................... D1.12 Diagram ........................................................................................................................................................................ D1.12 Operating laws.............................................................................................................................................................. D1.13 Characteristics .............................................................................................................................................................. D1.13 WHEEL SHAFT ............................................................................................................................................................ D1.14 Description.................................................................................................................................................................... D1.14 WHEEL REDUCER ...................................................................................................................................................... D1.15 Description.................................................................................................................................................................... D1.15 Diagram ........................................................................................................................................................................ D1.15 Characteristics .............................................................................................................................................................. D1.16 HYDRAULIC PART OF THE LUBRICATION ............................................................................................................... D1.16 Description.................................................................................................................................................................... D1.16 Characteristics .............................................................................................................................................................. D1.17

SUSPENSION "PROACTIV" DESCRIPTION ............................................................................................................................................................. D1.18 DIAGRAM ..................................................................................................................................................................... D1.19

Axion 850-810 – 09.2010 – GB

Architecture A, B or C ................................................................................................................................................... D1.20 Architecture D, E, F or G .............................................................................................................................................. D1.21 MECHANICAL PART.................................................................................................................................................... D1.22 Description.................................................................................................................................................................... D1.22 Diagram ........................................................................................................................................................................ D1.24 Characteristics .............................................................................................................................................................. D1.24 HYDRAULIC PILOTING PART..................................................................................................................................... D1.25 Description.................................................................................................................................................................... D1.25 Characteristics .............................................................................................................................................................. D1.30 Component layout......................................................................................................................................................... D1.31 Input/output................................................................................................................................................................... D1.31

RESULTS RECORD FORM FRONT SUSPENSION CHECK ................................................................................................................................... D1.32

D2 – MANAGEMENT OF DIFFERENTIALS FRONT DIFFERENTIAL LOCK DESCRIPTION ............................................................................................................................................................... D2.2 DIAGRAM ....................................................................................................................................................................... D2.3 Architecture A, B or C ..................................................................................................................................................... D2.2 Architecture D, E, F or G ................................................................................................................................................ D2.3 MEASUREMENTS AND CHECKS................................................................................................................................. D2.6 Control of differential locking engaging pressure............................................................................................................ D2.6

MECHANICAL PART DESCRIPTION ............................................................................................................................................................... D2.7 SCHEMATIC DIAGRAM................................................................................................................................................. D2.8 OPERATING LAWS ....................................................................................................................................................... D2.8 CHARACTERISTICS...................................................................................................................................................... D2.9 LOCKING CLUTCH ........................................................................................................................................................ D2.9 Description...................................................................................................................................................................... D2.9 Operating summary ...................................................................................................................................................... D2.10

HYDRAULIC PILOTING PART DESCRIPTION ............................................................................................................................................................. D2.11 COMPONENT LAYOUT ............................................................................................................................................... D2.12 CHARACTERISTICS.................................................................................................................................................... D2.13

Axion 850-810 – 09.2010 – GB

ELECTRONIC COMPONENTS DESCRIPTION ............................................................................................................................................................. D2.14 Architecture A, B or C ................................................................................................................................................... D2.14 Architecture D, E, F or G .............................................................................................................................................. D2.15 COMPONENT LAYOUT ............................................................................................................................................... D2.16 INPUTS/OUTPUTS ...................................................................................................................................................... D2.17 OPERATING LAWS ..................................................................................................................................................... D2.17 Protection...................................................................................................................................................................... D2.17

HYDRAULIC PART OF THE LUBRICATION DESCRIPTION ............................................................................................................................................................. D2.18

RESULTS RECORD FORM CHECKING THE ENGAGEMENT OF FRONT PROFESSOR ..................................................................................... D2.19

D3 – 4 WHEEL DRIVE GENERAL DESCRIPTION ............................................................................................................................................. D3.2 Description...................................................................................................................................................................... D3.2 CHARACTERISTICS...................................................................................................................................................... D3.3 RATIO OF 4 WHEEL DRIVE HOUSING P1/P2 ............................................................................................................. D3.3 OPERATING LAWS ....................................................................................................................................................... D3.3 DIAGRAM ....................................................................................................................................................................... D3.4 Architecture A, B or C ..................................................................................................................................................... D3.4 Architecture D, E, F or G ................................................................................................................................................ D3.5 MEASUREMENTS AND CHECKS................................................................................................................................. D3.7 Checking the front axle engagement pressure (4 wheel drive) ...................................................................................... D3.7

MECHANICAL PART DESCRIPTION ............................................................................................................................................................... D3.8 DIAGRAM ....................................................................................................................................................................... D3.8 OPERATING LAWS ....................................................................................................................................................... D3.8 CLUTCH ......................................................................................................................................................................... D3.9 Description...................................................................................................................................................................... D3.9 Diagram ........................................................................................................................................................................ D3.10 Operating laws.............................................................................................................................................................. D3.10

Axion 850-810 – 09.2010 – GB

HYDRAULIC PILOTING PART DESCRIPTION ............................................................................................................................................................. D3.11 CHARACTERISTICS.................................................................................................................................................... D3.11

ELECTRONIC COMPONENTS DESCRIPTION ............................................................................................................................................................. D3.12 Architecture A, B or C ................................................................................................................................................... D3.12 Architecture D, E, F or G .............................................................................................................................................. D3.13 COMPONENT LAYOUT ............................................................................................................................................... D3.14 INPUTS/OUTPUTS ...................................................................................................................................................... D3.14 OPERATING LAWS ..................................................................................................................................................... D3.15 Protection...................................................................................................................................................................... D3.15

HYDRAULIC PART OF THE LUBRICATION DESCRIPTION ............................................................................................................................................................. D3.16 COMPONENT LAYOUT ............................................................................................................................................... D3.16

RESULTS RECORD FORM CHECKING THE FRONT AXLE ENGAGEMENT PRESSURE (4 WHEEL DRIVE) .................................................... D3.17

D4 – RIGID FRONT AXLE GENERAL DESCRIPTION ............................................................................................................................................. D4.2 Description...................................................................................................................................................................... D4.2 FRONT/REAR INTER-AXLE RATIO .............................................................................................................................. D4.2 CHARACTERISTICS...................................................................................................................................................... D4.3

MOVEMENT TRANSMISSION DESCRIPTION ............................................................................................................................................................... D4.5 DIAGRAM ....................................................................................................................................................................... D4.5

MECHANICAL PART DESCRIPTION ............................................................................................................................................................... D4.6 FRONT DIFFERENTIAL................................................................................................................................................. D4.7 Description...................................................................................................................................................................... D4.7 Operating laws................................................................................................................................................................ D4.7

Axion 850-810 – 09.2010 – GB

D1 SUSPENDED FRONT AXLE

Axion 850-810 – 09.2010 – GB

General description Description The front suspended axle is manufactured by Dana. The front suspended axle is made mainly of the powered axle, a suspension mechanism, a hydraulic unit, and a hydropneumatic accumulator to dampen shocks.

Fig. 1

453hsm72

The front suspended axle is connected to the tractor through the cradle. The spreader of the front suspended axle is of the pendular type. The front suspended axle receives the movement from the rear axle through the 4 wheel drive clutch and the cardan shaft. The front suspended axle is available in several references: 745-606, 745-607, 745-609, 745-614, 750-608, 750-609, 750-631 and 750-632.

The maximum torque transmitted by the suspended front axle is 240 daN·m (for the GPA 41 rear axle) and 270 daN·m (for the GPA 42, 44, and 45 rear axle).

D1.2

The differential handles the following cases of use of the front suspended axle: – Disengaged.

– Automatic engaged.

– Automatic disengaged.

– Forced suspension.

The displacement of the front suspended axle is +/- 45 mm.

Axion 850-810 – 09.2010 – GB

General description Characteristics Tractor

Axion 810/820

Axion 810/820 (with proportional power takeoff)

745-606 745-608 745-614

745-606 745-609

Component

Type of "Proactiv" axle (Non reinforced)

Axion 830

750-608/612/620/630/632

Steering angle

Maximum 55°

Steering radius

5,15 m

Castor angle

10°

4 wheel drive mode

Yes

Type of 4 wheel drive engaging

Axion 840

750-609 750-613/620/629 750-631**

Multiple disc clutch with electrohydraulic engaging

Supply pressure of the actuation circuit

21 bar

Suspension

Electro-mechano-hydraulic

Type of suspension

Pendular cradle and spreader

Suspension mechanism

Expanding parallelogram and jack

Suspension accumulator

1,4 litre

Suspension circuit pressure

210 bar

Anti-transfer device

Yes

Differential lock

Yes

Type of differential lock

Mutiple disc brake with electrohydraulic engaging

Differential assembly

4 planetaries and 2 sun gears

Supply pressure of the differential locking piston

21 bar

Width between plates

1 892 mm

Type of final reduction

Epicyclic gear set

Number of satellites in final reductions Reducer ratio

Axion 850

4

1/17

1/20,727

1/17

1/18,375 Up to no.613 1/18,545

* Axion 810, 820: tires 16,9 R28 track width 1 968 mm ; Axion 830 : tires 16,9 R30 track width 1 996 mm. * Axion 840, 850: tires 480/70 R30 track width 1 995 mm. ** Valid for GPA44 CMatic on Axion 840.

Axion 850-810 – 09.2010 – GB

D1.3

General description Front/Rear inter-axle ratio

D1.4

Front axle

Front/Rear inter-axle ratio

745-614 (GPA41)

1,329

745-614 (GPA42)

1,348

750-632 (GPA42+/GPA44)

1,348

750-631 (GPA45)

1,3239

745-609 (GPA41, GPA42) (with proportional power takeoff)

1,3268

750-631 (GPA41 "CMatic")

1,3403

745-609 (GPA42 "CMatic")

1,346

Axion 850-810 – 09.2010 – GB

General description Operating laws The frint suspended axle handles the following operating modes.

Solenoid valve Operating mode Supply "Y321"

Lowering "Y322"

Transfer "Y331"

Accumulator "Y332"

Up

X

—

X

X

Down

—

X

—

—

Locking in low position

X

—

—

X

Suspension

—

—

X

X

Description X Solenoid valve powered.

Description 1029 Solenoid valves protection filter.

A57-2 "TR2" transmission module.

1030 Suspension circuit protection filter.

A101 "DBD" dashboard module.

3170 Front axle suspension jack.

A102 Module of the "SFA" front suspended axle.

4015 Calibrated orifice.

A103 Communication module for Bus CAN "BDG" networks.

5024 Suspension accumulator.

B234 Front axle position sensor.

6063 Discharge screw/Hydraulic pretension.

S171 "Revershift" lever.

7032 Check valve.

S195 Front axle selector.

7139 Anti-transfer device.

Y321 Supply solenoid valve.

7149 Shock valve.

Y322 DOWN solenoid valve.

A Control pressure from the priority unit.

Y331 Transfer proportional solenoid valve.

A30 "Cebis MFT" terminal module.

Y332 Cumulator proportional solenoid valve.

A57-1 "TR1" transmission module.

Z126 LH brake pedal switch.

Z127 RH brake pedal switch.

Note: To identify the type of electronic architecture, refer to the chapter on electronics of the CCN folder.

Axion 850-810 – 09.2010 – GB

D1.5

General description Architecture A, B or C MFT A30

CLAAS vehicle CAN bus

BDG A103

S195

TR2

SFA

A57-2

A102

S171

Y321 Y322

B220 Z126 Z127

Y321

LS

A

P

4015

7032

7139

Y322

1030

Y332

TR1 A57-1

Y331

Powertrain CAN bus

1029

T 7149

Y331 3170 Y332

6063

24 bar 5024 Fig. 2

60chsm1u

D1.6

Axion 850-810 – 09.2010 – GB

General description Architecture D, E, F or G MFT A30

CLAAS vehicle CAN bus

DBD A101

S195

TR2

SFA

A57-2

A102

S171

Y321 Y322

B220 Z126 Z127

Y321

LS

A

P

4015

7032

7139

Y322

1030

Y332

TR1 A57-1

Y331

Powertrain CAN bus

1029

T 7149

Y331 3170 Y332

6063

24 bar 5024 Fig. 3

60chsm05

Axion 850-810 – 09.2010 – GB

D1.7

General description Measurements and checks Front suspension check Test conditions: – Engine at 2 200 rpm.

– Oil temperature at 60°C.

C1 9024 P2

HYDRO TESTER

C2 9053 P3

Fig. 4

341hsm1i

• Fit the pressure sensors (C1) and (C2) from the "A1" kit n° 00 0178 310 0 on the diagnostic sockets: – "C1" on "P2 9024" "XLS" signal.

– "C2" on high pressure pump circuit "P3 9055".

• Connect the portable control of the "A1" kit n°00 0178 310 0 to the pressure sensors.

• Use the front suspension control button to reach the high position.

The values measured must be P2 = 95 bars and P3 = 115 bars.

The rising time T1 = 7 to 9 seconds and the descent time T2 = 6 to 8 seconds.

D1.8

Axion 850-810 – 09.2010 – GB

Movement transmission Description The system transmitting the movement to then froitn wheels is made by Dana. The differential of the front suspended axle receives the movement of the 4 wheel drive clutch by cardan.

Diagram P1

3

2

1 P2 Fig. 5

453hsm91

Description 1 Transmission 4 wheel drive clutch.

2 Universal joint shaft.

3 Suspended front axle.

Axion 850-810 – 09.2010 – GB

P1 Drive gear.

P2 Driven pinion.

D1.9

Movement transmission MECHANICAL PART Description The transmission system of the front suspended axle is mainly made of the differential assembly of the front suspended axle (1), 2 cardan wheel shafts (2), 2 sun shafts (3) and two wheel reducers (4).

1

Description

D1.10

3

4

Fig. 6

453hsm0g

1 Differential assembly of the front suspended axle.

2 Cardan wheel shaft.

2

3 Sun shaft.

4 Wheel reducer.

Axion 850-810 – 09.2010 – GB

Movement transmission Diagram

1

2

3

4

Fig. 7

453hsm90

Description 1 Epicycloid train wheel reducer.

2 Cardan wheel shaft, left-hand side.

3 Cardan wheel shaft, right-hand side.

4 Planet gear.

Axion 850-810 – 09.2010 – GB

D1.11

Movement transmission Front differential Description

3 2 1

Fig. 8

453hsm87

Description 1 Drive pinion.

2 Crown wheel.

3 Hydraulic supply.

Diagram Description 1 Drive pinion.

2 Crown wheel.

2

1 453hsm92

D1.12

Axion 850-810 – 09.2010 – GB

Fig. 9

Movement transmission Operating laws State of the front suspended axle differential

Mode selected

Disengaged

Free

Engaged automatically

Locked

Disengaged automatically

Free

Push

Locked

Characteristics Tractor Component

Axion 810/820 (with proportional power takeoff)

Axion 830

Differential lock

Axion 840

Axion 850

Yes

Type of differential lock

Mutiple disc brake with electrohydraulic engaging

Differential assembly

4 planetaries and 2 sun gears

State of the differential according to the mode selected: Disengaged

Free

Automatic engaged

Locked

Automatic disengaged

Free

Push

Locked

Axion 850-810 – 09.2010 – GB

D1.13

Movement transmission Wheel shaft Description

6 7

2 3 4 7 5

6

1

9

2 3 4

8 Fig. 10

453hsm0c

Description 1 Shaft.

2 Shaft.

3 Spider.

D1.14

4 Cardan yoke.

5 Shaft.

6 Plain bush.

Axion 850-810 – 09.2010 – GB

7 Seal.

8 Shaft.

9 Shaft.

Movement transmission Wheel reducer Description

1 2 3 5 2

15 6

14 7

13 12

4 11

8 16 9 10 Fig. 11

453hsm0d

Description 1 2 3 4 5

Seal.

Tapered roller bearing.

Wheel hub.

Screw.

O-ring.

6 7 8 9 10

Locking ring.

Ring gear carrier.

Crown wheel.

Seal.

Plug.

11 12 13 14 15

Planet carrier.

Tapered roller bearing.

Planet gear.

Tapered roller bearing.

Circlip.

Diagram

453hsm0f

Axion 850-810 – 09.2010 – GB

Fig. 12

D1.15

Movement transmission Characteristics Tractor Component Axion 810/820

Axion 810/820 (with proportional power takeoff)

Type of final reduction

Axion 840

Axion 850

Epicycloidal

Number of satellites in final reductions Type of wheel shaft

Axion 830

4 In 2 parts with linking cardan

Number of wheel shafts

2

Number of sun shafts

2

Lubricant capacity

2 litres

Type of lubricant

BLS 90

Hydraulic part of the lubrication Description

Fig. 13

453hsm0h

The front axle transmission is splash-lubricated. Sealing is ensured by rotating joints and O-rings.

D1.16

Axion 850-810 – 09.2010 – GB

Movement transmission Characteristics Tractor Component Axion 810/820

Axion 810/820 (with proportional power takeoff)

Type of final reduction

Axion 830

Axion 840

Axion 850

Epicycloidal

Lubricant capacity

2 litres

Type of lubricant

BLS 90

Axion 850-810 – 09.2010 – GB

D1.17

Suspension "Proactiv" Description

Fig. 14

453hsm0e

The "Proactiv" suspension absorbs the front suspended axle shocks. The "Proactiv" suspension is made of the front motorized axle (1) by Dana, the hydraulic unit (5) by Husco, the mechanism of the expandable parallelogram type (3), the spreader pin (2), the hydraulic jack (6), the accumulator (4) and the "A102 SFA" module.

D1.18

Axion 850-810 – 09.2010 – GB

Suspension "Proactiv"

6

1

3 2 4

5 Fig. 15

453hsm97

Description 1 Front motorized axle.

2 Spreader pin.

3 Expandable parallelogram mechanism.

4 Accumulator.

5 Hydraulic block.

6 Cylinder.

Axion 850-810 – 09.2010 – GB

D1.19

Suspension "Proactiv" Diagram Architecture A, B or C MFT A30

CLAAS vehicle CAN bus

BDG A103

S195

TR2

SFA

A57-2

A102

S171

Y321 Y322

B220 Z126 Z127

Y321

LS

A

P

4015

7032

7139

Y322

1030

Y332

TR1 A57-1

Y331

Powertrain CAN bus

1029

T 7149

Y331 3170 Y332

6063

24 bar 5024 Fig. 16

60chsm1u

D1.20

Axion 850-810 – 09.2010 – GB

Suspension "Proactiv" Architecture D, E, F or G MFT A30

CLAAS vehicle CAN bus

DBD A101

S195

TR2

SFA

A57-2

A102

S171

Y321 Y322

B220 Z126 Z127

Y321

LS

A

P

4015

7032

7139

Y322

1030

Y332

TR1 A57-1

Y331

Powertrain CAN bus

1029

T 7149

Y331 3170 Y332

6063

24 bar 5024 Fig. 17

60chsm05

Axion 850-810 – 09.2010 – GB

D1.21

Suspension "Proactiv" Description 1029 Solenoid valves protection filter.

A57-2 "TR2" transmission module.

1030 Suspension circuit protection filter.

A101 "DBD" dashboard module.

3170 Front axle suspension jack.

A102 Module of the "SFA" front suspended axle.

4015 Calibrated orifice.

A103 Communication module for Bus CAN "BDG" networks.

5024 Suspension accumulator.

B220 Front axle position sensor.

6063 Discharge screw/Hydraulic pretension.

S171 "Revershift" lever.

7032 Check valve.

S195 Front axle selector.

7139 Anti-transfer device.

Y321 Supply solenoid valve.

7149 Shock valve.

Y322 DOWN solenoid valve.

A Control pressure from the priority unit.

Y331 Transfer proportional solenoid valve.

A30 "Cebis MFT" terminal module.

Y332 Cumulator proportional solenoid valve.

A57-1 "TR1" transmission module.

Z126 LH brake pedal switch.

Z127 RH brake pedal switch.

MECHANICAL PART Description The "Proactiv" suspension of the front axle is made by Dana.

3

1

2 4

Fig. 18

453hsm89

Description 1 Axle.

2 Spreader pin.

3 Suspension mechanism.

4 Accumulator.

The suspension mechanism of the front axle is of the expandable parallelogram type.

D1.22

Axion 850-810 – 09.2010 – GB

Suspension "Proactiv"

3

2

4

1

Fig. 19

453hsm0b

Description 1 Lower arm.

2 Upper arm.

3 Cylinder.

4 Spreader pin.

The jack (3) is linked to the lower arm (1) and spreader pin (4). The jack (3) manages the oscillations and movements of the front suspended axle.

Fig. 20

453hsm85

Description 1 Lower arm.

2 Upper arm.

3 Cylinder.

4 Spreader pin.

Axion 850-810 – 09.2010 – GB

D1.23

Suspension "Proactiv" Diagram

3170

3170

Fig. 21

453hsm94

Description 3170 Cylinder.

Characteristics Tractor Component Axion 810/820

Axion 810/ 820 (with proportional power takeoff)

Axle displacement

D1.24

Axion 830

± 45 mm

Axion 850-810 – 09.2010 – GB

Axion 840

Axion 850

Suspension "Proactiv" Hydraulic piloting part Description Hydraulic control of the front axle suspension is ensured by the hydraulic unit by Husco.

Y321

LS P

4015

Y322

732

7139 1030

1029

T 7149

3170

Y331

Y332 6063 5024

Fig. 22

453hsm77

Description Y321 Supply solenoid valve.

Y332 Cumulator proportional solenoid valve.

7139 Anti-transfer device.

3170 Cylinder.

Y322 DOWN solenoid valve.

4015 Supply restriction.

5024 Accumulator.

6063 Decompression valve.

Y331 Transfer proportional solenoid valve.

7032 Check and restriction valve.

7149 Impact valve.

The 4 solenoid valves of the hydraulic unit allow to perform the following operations of the front suspended axle: – Up. – Down.

– Locking in low position.

– Suspension.

To ensure safe intervention on the components of the front suspended axle, the decompression valve "6063" lowers pressure in the hydraulic unit and the "5024" accumulator. The "7149" shock valve restricts pressure in the control circuit to 210 bars.

Axion 850-810 – 09.2010 – GB

D1.25

Suspension "Proactiv" • UP mode

LS P

4015

1029

Y321

7032

Y322

7139 1030

3170

T

Y331

7149

Y332 6063 5024

Fig. 23

453hsm83

The rod of the "3170" suspension jack moves out if the solenoid valves "Y321", "Y331" and "Y332" are supplied. The upper and lower chambers of the jack receive a flow of oil with identical pressure. Due to the area difference on both sides of the piston, the jack rod is pushed out and the height of the front axle increases.

• DOWN mode

Y321

LS P

4015

7139

7032 Y322

1029

1030

T 7149

3170

Y331

Y332 6063 5024

Fig. 24

453hsm84

The rod of the "3170" suspension jack enters if the "Y322" solenoid valve is supplied. The restriction associated with the "7032" check valve limits the down speed of the front axle.

D1.26

Axion 850-810 – 09.2010 – GB

Suspension "Proactiv" • Suspension

Y321

LS P

4015

7032

Y322

1029

7139 1030

3170

T

Y331

7149

Y332

6063 5024

Fig. 25

453hsm86

When the suspension mode is engaged, solenoid valves "Y331" and "Y332" are supplied. Both jack chambers (upper and lower) are connected to the "5024" accumulator, which absorbs pressurizing when the front axle oscillates. Due to the difference in piston area, the jack rod moves out and the height of the front axle increases. The check valve associated with the restriction of the anti weight transfer device "7139" limits the

displacement speed of the front of the tractor upwards.

The valve of the anti weight transfer device "7139" restricts pressure to 250 bars, hence protecting the anti weihgt transfer device against overpressure. The shock valve "7149" restricts pressure to 210 bars in the entire "Proactiv" suspension system assembly. The hydraulic unit is located on the front axle. The "A102" module is in the cab, in the rear strip.

Axion 850-810 – 09.2010 – GB

D1.27

Suspension "Proactiv"

SFA A102

1

Fig. 26

453hsm79

Description 1 Hydraulic block.

D1.28

A102 Module of the "SFA" front suspended axle.

Axion 850-810 – 09.2010 – GB

Y332

Y331

Y321 Y322

Suspension "Proactiv"

Fig. 27

453hsm96

Description Y321 Supply solenoid valve.

Y331 Transfer proportional solenoid valve.

Y322 DOWN solenoid valve.

Y332 Cumulator proportional solenoid valve.

Axion 850-810 – 09.2010 – GB

D1.29

Suspension "Proactiv" Characteristics Tractor Component Axion 810/820

State of the suspension according to mode

Axion 810/ 820 (with proportional power takeoff)

Axion 830

Up Down Locking in low position Suspension

Suspension accumulator Front suspension engaging command Front suspension control Front suspension engaging preactuator

Axion 840

1 litre 13 bar 2-position contact 12 Volt supply Module "A102 SFA" On/off solenoid valve 12 V ; 8,8 Ω

Suspension circuit pressure

210 bar

Front suspension descent preactuator

On/off solenoid valve 12 V ; 8,8 Ω

Front suspension rising preactuator

On/off solenoid valve 12 V ; 5,5 Ω

Front suspension transfer preactuator

On/off solenoid valve 12 V ; 5,5 Ω

Position sensor of the suspended axle

Hall effect sensor 12 Volt supply

Anti-transfer device

D1.30

Yes

Axion 850-810 – 09.2010 – GB

Axion 850

Suspension "Proactiv" Component layout A30

S195

Y332

Y331

Y321 Y322

S171

TR2 A57-2

1

SFA A102

TR3 A57-3 Fig. 28

453hsm67

Description 1 Hydraulic block.

S195 Front axle selector.

A30 "Cebis MFT" terminal module.

Y321 Supply solenoid valve.

A57-1 "TR1" transmission module.

Y322 DOWN solenoid valve.

A57-2 "TR2" transmission module.

Y331 Transfer proportional solenoid valve.

A102 Module of the "SFA" front suspended axle.

Y332 Cumulator proportional solenoid valve.

A103 Communication module for Bus CAN "BDG" networks.

Z126 LH brake pedal switch.

B234 Front axle position sensor.

Z127 RH brake pedal switch.

S171 "Revershift" lever.

Inputs/outputs Refer to the input/output tables of the modules concerned (see "CLAAS component number" list).

Axion 850-810 – 09.2010 – GB

D1.31

Measurement Sheet This sheet may be copied and should be completed for each operation on the tractor. If it has to be returned to the manufacturer's after sales department; the following must be included: Tractor type:............................................................................................................................................................................

The serial number:..................................................................................................................................................................

Total operating hours :............................................................................................................................................................

Date of operation: ...................................................................................................................................................................

Front suspension check

Test conditions Transmission oil temperature: 20°C

Pressure of high pressure pump on '9055' fitting (median position) (bar) Nominal value

Engine speed: 2 000 rpm Weight on front axle: 3 800 kg

D1.32

115

Value measured

Pressure of "LS" pump on "9024" fitting (median position) (bar) Nominal value

Value measured

95

Axion 850-810 – 09.2010 – GB

Rising time (low to median position) (T1) (in seconds) Nominal value

7 to 9

Value measured

Descent time (Medium to low positiion) (T2) (in seconds) Nominal value

6 to 8

Value measured

D2 MANAGEMENT OF DIFFERENTIALS

Axion 850-810 – 09.2010 – GB

Front differential lock Description Blocking the front axle differential is ensured mechanically by engaging the multiple disc clutch part of the axle. The clutch was made by Dana.

Fig. 1

453hsm74

Pressurizing and releasing the differential locking clutch are controlled by the "TR2" module by means of an On/Off solenoid valve. Locking and releasing the front axle differential can be managed automatically according to the wheel turning angle and position of rear lifting. To protect the unit, the differential is released when pressing the brakes or when tractor speed is too high. The "Cebis" informs the user if the differential is blocked or non.

Note: To identify the type of electronic architecture, refer to the chapter on electronics of the "CCN" folder.

D2.2

Axion 850-810 – 09.2010 – GB

Front differential lock Diagram Architecture A, B or C

MFT A30

CLAAS vehicle CAN bus

BDG A103

Powertrain CAN bus 1

1

DBD

REH

TR2

A101

A58

A57-2

Z184

9010 1026 A

B139-2 S94

B117

Z126 Z127

Y105 7029

Fig. 2

60chsm1z

Axion 850-810 – 09.2010 – GB

D2.3

Front differential lock Architecture D, E, F or G

MFT A30

CLAAS vehicle CAN bus

DBD A101

1

Powertrain CAN bus

1

REH

TR2

A58

A57-2

Z184

9010 1026 A

B139-2 S94

B117

Z126 Z127

Y105 7029

Fig. 3

60chsm10

D2.4

Axion 850-810 – 09.2010 – GB

Front differential lock Description 1 Forward speed information.

A103 Communication module for bus CAN "BDG" networks.

1026 Low pressure filter.

B117 Steering angle sensor.

7029 Pressure limiter .

B139-2 Lift position sensor (rear).

9010 Low pressure tap.

S94 Differential locking switch.

A Control pressure from the hydraulic circuit.

Y105 Differential lock solenoid valve.

A30 "Cebis MFT" terminal module.

Z126 LH brake pedal switch.

A57-2 "TR2" transmission module.

Z127 RH brake pedal switch.

A101 "DBD" dashboard module.

Z184 Pressure switch.

Axion 850-810 – 09.2010 – GB

D2.5

Differential lock Measurements and checks Control of differential locking engaging pressure Test conditions: – Engine idling.

– Transmission oil temperature: 60°C.

HYDRO TESTER

Fig. 4

453hsm0a

– Fit the pressure sensor of kit Nr.00 0178 310 0 on a T on the level of the differential locking supply.

– Connect the portable command of kit n°00 0178 310 0 onto the pressure sensor.

– Actuate the contact of the (S94) differential lock.

– Measure the pressure which must be 21 bar.

D2.6

Axion 850-810 – 09.2010 – GB

MECHANICAL PART Description Blocking the front axle differential is ensured mechanically by engaging the multiple disc clutch part of the axle. The clutch was made by Dana.

3 2 1

Fig. 5

453hsm87

Description 1 Clutch.

2 Piston body.

Axion 850-810 – 09.2010 – GB

3 Pressurized oil supply.

D2.7

MECHANICAL PART Schematic diagram

453hsm88

Fig. 6

Operating laws Front differential locking is engaged simultaneously with rear differential locking.

• Automatic mode Front differential locking is engaged when: – Upon request by the user.

– Lifting is in risen mode.

– The tractor is moving in a straight line.

– When pressing the service brake pedals, locking is disengaged definitely (unless temporary disengagement by lifting is already activated).

– The automatic mode is chosen.

To disengage front differential locking, the user presses the control switch again.

– Upon user request.

Front differential locking is disengaged when:

• Permanent mode

– When starting the tractor.

Front differential locking is engaged when:

– Depending on the speed and the turn angle of the front axle:

– Upon request by the user.

– Speed between 0 and 10 km/h and steering angle exceeding 15°.

Front and rear differential locking is disengaged when:

– Speed between 10 and 14 km/h and steering angle exceeding 5°.

– Both service brake pedals are actuated simultaneously.

D2.8

– Speed is below 14 km/h.

– Upon request by the user.

– Speed exceeds 14 km/h.

Axion 850-810 – 09.2010 – GB

MECHANICAL PART Characteristics Tractor

Axion 810/820

Axion 810/820 (with proportional power takeoff)

745-606

745-607

Component

Type of "Proactiv" axle

Axion 830

750-608

Differential lock Type of differential lock

Axion 840

Axion 850

750-609

Yes Multiple disc clutch with electrohydraulic engaging

Number of differential lock discs

10

Differential locking control

Module "TR2"

State of the differential according to the mode selected: Disengaged automatic engaged automatic disengaged forced

Free Locked Free Locked

Supply pressure of the differential locking piston

21 bar

Locking clutch Description Differential locking clutch is part of the front axle.

Description 1 2 3 4 5

Piston.

Clutch disk.

Backplate.

Sun shaft.

Differential crown wheel.

Upon a frotn axle differential locking command, the piston (1) applies pressure onto the discs (2) and backplates (3), hence linking the sun shafts (4) with the differential crown gear (5).

1

453hsm76

Axion 850-810 – 09.2010 – GB

4

2

3

5

Fig. 7

D2.9

MECHANICAL PART Operating summary Mechanical state

Hydraulic status (bar)

Differential released

0

Differential locked

21

D2.10

Axion 850-810 – 09.2010 – GB

Hydraulic piloting part Description Description 1026 Filter.

7029 Pressure limiter .

9010

9010 Pressure connector.

A Hydraulic system 21 bar.

Y105 Differential lock solenoid valve.

Z184 Pressure switch.

21 bar A

60 µ 1026

24 bar 7029

341hpm34

Axion 850-810 – 09.2010 – GB

Y105

8 bar Z154

Fig. 8

D2.11

Hydraulic piloting part Component layout

1

Y105

Fig. 9

453hsm80

Description 1 "S94" differential locking switch.

D2.12

Y105 Differential lock solenoid valve.

Axion 850-810 – 09.2010 – GB

Hydraulic piloting part Characteristics Tractor

Axion 810/820

Axion 810/820 (with proportional power takeoff)

745-606

745-607

Component

Type of "Proactiv" axle Differential locking control

Axion 830

Axion 840

750-608

Axion 850

750-609

Module "TR2"

Differential locking preactuator

On/off solenoid valve 12 V: 10 Ω

Control circuit supply pressure

21 bar

Axion 850-810 – 09.2010 – GB

D2.13

Electronic components Description Architecture A, B or C

MFT A30

CLAAS vehicle CAN bus

BDG A103

Powertrain CAN bus

B117

+ 12 V

3

2

+ 12 V

+ 12 V

1 S94

Z126

Z127

+ 12 V 1

1 33

35

19

DBD

REH

TR2

A101

A58

A57-2

2

34

11

B139-2 Y105

3

2

1

+ 12 V

Fig. 10

60chsm1v

D2.14

Axion 850-810 – 09.2010 – GB

Electronic components Architecture D, E, F or G

MFT A30

CLAAS vehicle CAN bus

DBD A101

Powertrain CAN bus

1

B117

+ 12 V

3

2

+ 12 V

+ 12 V

1 S94

Z126

Z127

+ 12 V 1 33

35

19

REH

TR2

A58

A57-2

2

34

11

Y105

B139-2

3

2

1

+ 12 V

Fig. 11

60chsm1w

Axion 850-810 – 09.2010 – GB

D2.15

Electronic components Description 1 Forward speed information.

A103* Communication module for bus CAN "BDG" networks.

1026 Low pressure filter.

B117 Steering angle sensor.

7029 Pressure limiter .

B139-2 Lift position sensor (rear).

9010 Low pressure tap.

S94 Differential locking switch.

A Control pressure from the hydraulic circuit.

Y105 Differential lock solenoid valve.

A30 "Cebis MFT" terminal module.

Z126 LH brake pedal switch.

A57-2 "TR2" transmission module.

Z127 RH brake pedal switch.

A101 "DBD" dashboard module.

Z184 Pressure switch.

Component layout

A30

S94 B139-2

B117

A101

Z126 Z127

A57-2

A103*

Y105 Fig. 12

845hsm03

* Only with the A, B or C electronic architecture.

D2.16

Axion 850-810 – 09.2010 – GB

Electronic components Inputs/outputs Refer to the input/output tables of the modules concerned (see CLAAS Component number list).

Operating laws When starting the tractor, the front axle differential returns to its state when the engine was stopped. There are several operating modes.

Mode "Off" Automatic engaged Automatic disengaged Push

Mechanical state of the differential

Electrical state (V)

Free

0

Locked

12

Free

0

Locked

12

Protection The following degraded modes are handled by the differential locking management system.

Defect

State of differential

Insufficient oil pressure

Disengaged

Loss of information on engine speed

Disengaged

Battery voltage above 16V

Disengaged

Axion 850-810 – 09.2010 – GB

D2.17

Hydraulic part of the lubrication Description The front axle differential is splash-lubricated. The clutch discs have holes allowing oil to flow freely. These holes are aligned upon fitting.

D2.18

Axion 850-810 – 09.2010 – GB

Results record form This sheet may be copied and should be completed for each operation on the tractor. If it has to be returned to the manufacturer's after sales department; the following must be included: Tractor type:............................................................................................................................................................................

The serial number:..................................................................................................................................................................

Total operating hours:.............................................................................................................................................................

Date of operation: ...................................................................................................................................................................

Checking the engagement of front professor Test conditions: Oil temperature: 60°C

Hydraulic status Nominal pressure (bar)

Differential released

0

Differential locked

21

Axion 850-810 – 09.2010 – GB

Recorded pressure (bar)

D2.19

Notes

D2.20

Axion 850-810 – 09.2010 – GB

D3 4 WHEEL DRIVE

Axion 850-810 – 10.2010 – GB

General description Description The 4 wheel drive status of the transmission is achieved by engaging the 4 wheel drive clutch. The 4 wheel drive clutch is part of the rear axle and GPA 40. The 4 wheel

drive is made by Gima. The movement at gearbox exit is transmitted permanently to the 4 wheel drive clutch. The 4 wheel drive clutch housing also provides the function of power take-off proportional with forward speed.

Fig. 1

453hsm72

D3.2

Axion 850-810 – 10.2010 – GB

General description Characteristics Tractor Axion 810/820 (with proportional power takeoff)

Component Axion 810/820

Axion 830

4 wheel drive mode

Number of clutch discs

Axion 850

Yes

Type of 4 wheel drive engaging Maximum torque transmitted by the 4 wheel drive clutch (daN·m)

Axion 840

Multiple disc wet clutch with electrohydraulic engaging 240

240/270

270

9

9

Ratio of 4 wheel drive housing P1/P2 Type of PTO Gear box

Power take-off 540/1 000 - 540, 540 ECO, 1 000

Power take-off 540/1 000 + proportional

"Hexashift"

40/53

45/49

"CMatic" (Axion 810-820)

40/53

45/49

"CMatic" (Axion 830-840)

40/55

45/49

Description P1 Drive gear.

P2 Driven pinion.

Operating laws Pressurizing and releasing the 4 wheel drive clutch are controlled by the "TR2" module by means of an On/Off solenoid valve. The 4 driving wheels will be engaged: – Upon request by the user.

– Locked diferential.

– The user brakes (simultaneous action on the 2 service brake pedals).

– The hand brake is actuated.

– The tractor's speed is under 14 km/h.

Note: To identify the type of electronic architecture, refer to the chapter on electronics of the "CCN" folder.

Axion 850-810 – 10.2010 – GB

D3.3

General description Diagram Architecture A, B or C MFT A30

CLAAS vehicle CAN bus

BDG A103

S1

Powertrain CAN bus

Z126 Z127

S94

1

1

DBD

TR2

A101

A57-2

5 Z184

9010 1026 A

Z12

Y1 7029

Fig. 2

60chsm00

D3.4

Axion 850-810 – 10.2010 – GB

General description Architecture D, E, F or G

MFT A30

CLAAS vehicle CAN bus

DBD A101

S1

Z126 Z127

S94

1

Z12

Powertrain CAN bus

TR2 A57-2 Z184

9010 1026 A

Y1 7029

Fig. 3

60chsm1y

Axion 850-810 – 10.2010 – GB

D3.5

General description

Description 1026 Filter.

S1 4-wheel drive switch.

7029 Pressure limiter .

S94 Differential locking switch.

9010 Pressure connector.

Y1 4 wheel drive clutch solenoid valve.

A Low pressure hydraulic circuit.

Z12 Hand brake contact.

A30 "Cebis MFT" terminal module.

Z126 LH brake pedal switch.

A57-2 "TR2" transmission module.

Z127 RH brake pedal switch.

A101 "DBD" dashboard module.

Z184 Pressure switch.

A103 Communication module for bus CAN "BDG" networks.

D3.6

Axion 850-810 – 10.2010 – GB

General description Measurements and checks Checking the front axle engagement pressure (4 wheel drive) Test conditions: – Engine at 2 200 rpm.

– Transmission oil temperature: 60°C.

HYDRO TESTER

Fig. 4

326hsm01

– Fit the pressure sensor on a T fitted with hoses on the level of the supply of the 4 wheel drive housing.

– Disengage the 4 wheel drive housing by pressing the "S1" button.

The measured pressure must be 21 bar.

Axion 850-810 – 10.2010 – GB

D3.7

MECHANICAL PART Description The 4 wheel drive clutch is part of the GPA 40 axle. The 4 wheel drive is made by Gima.

Diagram P1

3

2

1 P2 Fig. 5

453hsm91

Description 1 Clutch transmission.

2 Universal joint shaft.

3 Front axle.

Operating laws State

Automatic front axle engaging

With the engine stopped Hand brake engaged

Yes

The tractor's speed is under 14 km/h The tractor speed exceeds 14 km/h

No

Both service brake pedals are actuated simultaneously

Yes

D3.8

Axion 850-810 – 10.2010 – GB

MECHANICAL PART Clutch Description The 4 wheel drive clutch of the multiple disc wet type.

2

1

4

3 Fig. 6

341hsm1b

Description 1 Drive pinion.

2 "P1" leading gear.

3 Led gear "P2".

4 Clutch housing set.

Axion 850-810 – 10.2010 – GB

D3.9

MECHANICAL PART Diagram Description 1 2 3 4 5 6

Clutch housing.

Clutch discs.

Hub. Clutch backing plates.

Spring.

Shaft.

5 4 3 6 2 1

P2 Fig. 7

341hsm1c

Operating laws The clutch receives the input movement via the crown wheel "P2". The hub (3) connected to its shaft transmits the movement to the front axle. When the clutch is not supplied in low rpessure, the front axle is engaged.

1

P1

2

P2

P1

P2 Fig. 8

341hsm1d

Mechanical state

Clutch status

1. 2 wheel drive

Disengaged

2. 4 wheel drive

Engaged

D3.10

Axion 850-810 – 10.2010 – GB

Hydraulic piloting part Description The 4 wheel drive ckutch is actuated by a "Y1" On/Off solenoid valve. The hydraulic supply pressure comes from the (A) low pressure hydraulic circuit of the tractor.

9010

Description

Y1

21 bar 60 µ 1026

1026 Low pressure filter.

7029 Pressure limiter .

A

9010 Low pressure tap.

A Control pressure from the low pressure hydraulic circuit.

Y1 4 wheel drive clutch solenoid valve.

24 bar 7029

Z154 Pressure switch.

8 bar Z184

Fig. 9

341hpm28

Description Y1 4 wheel drive clutch solenoid valve.

Y1

Fig. 10

453hsm82

Characteristics Characteristic

GPA 41

Pressure of the 4 wheel drive clutch control circuit Type of solenoid valve

GPA 42

GPA 44

GPA 45

21 bar (On/Off)

Axion 850-810 – 10.2010 – GB

D3.11

Electronic components Description Architecture A, B or C

MFT A30

CLAAS vehicle CAN bus

BDG A103

Powertrain CAN bus

+ 12 V

S1

+ 12 V

+ 12 V

S94

Z126

1

+ 12 V

Z127

1 8

35

19

DBD

TR2

A101

A57-2

34

25

5

Z12 Y1 + 12 V

Fig. 11

60chsm1x

D3.12

Axion 850-810 – 10.2010 – GB

Electronic components Architecture D, E, F or G

MFT A30

CLAAS vehicle CAN bus

5

+ 12 V Z12

DBD A101 1

Powertrain CAN bus

+ 12 V

S1

+ 12 V

+ 12 V

S94

Z126

+ 12 V

Z127

1 8

35

19

34

TR2 A57-2 25

Y1

Fig. 12

60chsm2a

Description A30 "Cebis MFT" terminal module.

S94 Differential locking switch.

A57-2 "TR2" transmission module.

Y1 4 wheel drive clutch solenoid valve.

A101 "DBD" dashboard module.

Z12 Hand brake contact.

A103 Communication module for bus CAN "BDG" networks.

Z126 LH brake pedal switch.

S1 4-wheel drive switch.

Z127 RH brake pedal switch.

Axion 850-810 – 10.2010 – GB

D3.13

Electronic components Component layout A101

A30

S1

S94

Z126 Z127

A57-2

Z12 Y1

A103* Fig. 13

845hsm02

* Only with the A, B or C electronic architecture.

Inputs/outputs Refer to the input/output tables of the modules concerned (see "CLAAS component number" list).

D3.14

Axion 850-810 – 10.2010 – GB

Electronic components Operating laws

Engaged temporarily

Parking brake engaged

Engaged temporarily

Press both brakes

Parking brake released

Brake release

Press < 2 seconds

Press > 2 seconds

Off mode Press < 2 seconds

Press < 2 seconds

Engagement of differential lock

Automatic mode

Override mode Press > 2 seconds

Speed is < 14 km/h

Speed is > 14 km/h

Disengaged temporarily

Press < 2 seconds

Engaged temporarily Press both brakes

Brake release

Fig. 14

60chsm02-04

Protection The front axle is automatically engaged when the speed falls below 14 km/h. To guarantee effective braking on the 4 wheels of the tractor, the front axle is engaged once the service brake is actuated (with the 2 coupled pedals). The

"TR2 A57-2" transmission module managing the front axle operation disengages it when the simultaneous action on the 2 brake pedals stops.

Axion 850-810 – 10.2010 – GB

D3.15

Hydraulic part of the lubrication Description The 4 wheel drive clutch is splash-lubricated. Holes allow the oil to reach the clutch discs. A facing fitted around the clutch reduces the power lost by the splash-lubrication.

Component layout

1

2 Fig. 15

341hsm1e

Description 1 Splash-lubricated.

D3.16

2 Protection facing.

Axion 850-810 – 10.2010 – GB

Results record form This sheet may be copied and should be completed for each operation on the tractor. If it has to be returned to the manufacturer's after sales department; the following must be included: Tractor type:............................................................................................................................................................................

The serial number:..................................................................................................................................................................

Total operating hours:.............................................................................................................................................................

Date of operation: ...................................................................................................................................................................

Checking the front axle engagement pressure (4 wheel drive) Test conditions Oil temperature: 40°C

Hydraulic status Nominal pressure (bar)

4 wheel drive

0

2 wheel drive

21

Axion 850-810 – 10.2010 – GB

Recorded pressure (bar)

D3.17

Notes

D3.18

Axion 850-810 – 10.2010 – GB

D4 RIGID FRONT AXLE

Axion 850-810 – 09.2010 – GB

General description Description The rigid front axle is by Dana. The rigid front axle is composed mainly of the drive axle and an electrohydraulic engaging differential.

Fig. 1

451msm14

The rigid front axle is connected to the tractor through the cradle. The joint of the front rigid axle is of the pendular type. The rigid front axle receives the movement from the rear axle through the 4 wheel drive clutch and the cardan shaft. The types of front rigid axle available are the following: – 770-509, 770-508 for reinforced fixed axles.

– 750-550, 750-549, 750-548, 750-547, 750-542, 750-541, 750-507, 745-511 for non reinforced fixed axles.

Front/Rear inter-axle ratio Front axle

Rear axle and gearbox

Front/Rear inter-axle ratio

770-509

GPA 42 – GPA 42 +

1,3510

770-508

GPA 45 – GPA 44 CMatic

1,3276

750-550

GPA 44 – GPA 42 +

1,348

750-549

GPA 45

1,3239

750-549

GPA 44 CMatic

1,3403

745-511

GPA 41 – GPA 41 CMatic

1,329

745-511

GPA 42 – GPA 42 CMatic

1,348

D4.2

Axion 850-810 – 09.2010 – GB

General description Characteristics Tractor Component

Type of reinforced axle

Type of non reinforced fixed axle

Axion 810

Axion 820

—

—

Axion 830

745-511 745-507

Axion 840 770-509

770-508*

750-548 750-542

750-549* 750-547* 750-541*

750-550 Steering angle

55°

4 wheel drive mode

Yes

Type of 4 wheel drive engaging

750-550

Multiple disc clutch with electrohydraulic engaging

Supply pressure of the actuation circuit

21 bar

Differential lock

Yes

Type of differential lock

Mutiple disc brake with electrohydraulic engaging

Differential assembly

4 planetaries and 2 sun gears

Supply pressure of the differential locking piston

21 bar

Width between plates

Reinforced axle: 1 910 mm – Non reinforced axle: 1 892 mm

Type of final reduction

Epicyclic gear set

Number of satellites in final reductions Reducer ratio (Reinforced axle) Reducer ratio (Non reinforced axle)

Axion 850

3 —

1/16,971 1/17

1/18,495* 1/18,545*

* Valid for "GPA 44 CMatic" on Axion 840.

Axion 850-810 – 09.2010 – GB

D4.3

General description

DANA AXLE

1

ITALIA DIFF.

TOTAL RATIO

S.p.A. 2 3

SERIAL

N°

4

AXLE

N°

5

Fig. 2

451hsm56

Description 1 CLAAS reference.

3 Total ratio.

2 Type of differential.

4 Serial number.

D4.4

Axion 850-810 – 09.2010 – GB

5 Type of axle.

Movement transmission Description The conical torque of the front rigid axle receives the movement of the 4 wheel drive clutch through the cardan shaft.

Diagram

3

2

4 1

Fig. 3

451msm1h

Description 1 4 WD clutch.

2 Universal shaft.

3 Crown wheel and pinion.

4 Final drive.

Axion 850-810 – 09.2010 – GB

D4.5

MECHANICAL PART Description The transmission system of the rigid front axle is made mainly of the differential assembly of the rigid front axle (1), 2 cardan wheel shafts (2), 2 planetary shafts (3) and 2 wheel reducers (4).

1

Description

D4.6

3

4

Fig. 4

453hsm0g

1 Differential assembly of the rigid front axle 2 Cardan wheel shaft.

2

3 Sun shaft.

4 Wheel reducer.

Axion 850-810 – 09.2010 – GB

MECHANICAL PART Front differential Description The differential of the front rigid axle is of the electrohydraulic engaging type.

Operating laws

Fig. 5

453hsm74

Refer to the part: D2 - Management of differentials.

Axion 850-810 – 09.2010 – GB

D4.7

Notes

D4.8

Axion 850-810 – 09.2010 – GB