Remove/install torsion bar on rear axle

AR32.20-D-0315K

Remove/install torsion bar on rear axle

07.01.2016

Model

900.65

Model

906.15/25/65

except code PL9 (Air suspension, company VB-Airsuspension)

Modification notes

24.08.2015

Assembly position

Model 900.65

BE32.20-N-1001-06A

24.08.2015

Montageposition

Typ 900.65

BE32.20-N-1001-06A

24.08.2015

Assembly position

MODEL 906.15/25/65 except CODE PL9

BE32.20-N-1001-06A

24.08.2015

Montageposition

TYP 906.15/25/65 außer CODE PL9

BE32.20-N-1001-06A

Shown on model 906.657

1

Torsion bar

2

Bolts

3

Bolt

4

Torsion bar linkage

5

Nut

6

Torsion bar clamp

7

Torsion bearing

Pfeil

Old elastomer bearings

A

Distance

1

Torsion bar

6

Torsion bar clamp

7

Torsion bearing

a

Mounting angle

C

Direction of travel

1

Torsion bar

7

Torsion bearing

4

Torsion bar linkage

9

C-clamp

6

Torsion bar clamp



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Remove

1

Lift/jack up vehicle

AR00.60-D-1000H

2

Unscrew bolts (2) and remove torsion bar clamps (6)


Do not reuse the old elastomer bearings, bolts (2) and old torsion bar clamps (arrow). Use new torsion bearings (7), torsion bar clamps (6) and new bolts (2).
The old elastomer bearings have no torsional action.

 Mark mounting locations of torsion bearings with paint or insulation tape.
The mounting location markings are already present on new torsion bars.
If old elastomer bearings are installed, make the marking with a gap of 4 mm (A) because the new torsion bearings (7) are 8 mm wider.

3

Unscrew bolts (3) and remove torsion bar (1) from torsion bar linkage (4)

4

Pry torsion bar clamps (6) off torsion bearings (7) and remove torsion bearings (7) from torsion bar (1)

 Clean the torsion bar (1) at the mounting locations.



Install

5

Push torsion bearings (7) up to markings indicating mounting locations of torsion bar (1)

6

Align torsion bar (1) and torsion bearing (7) to specified mounting angle (a)

Assembly position

*BE32.20-N-1001-06A

 Choke angle gauge (electronic)

*001589882100

7

Press torsion bar clamps (6) onto torsion bearings using C-clamp (9).


Do not allow lubricant to enter the inside of the torsion bearing (7).
The torsion bearing (7) will otherwise slip and then has no effect.

 Apply a thin coating of lubricant to the outside of the torsion bearing (7) to allow the torsion bar clamps (6) to be pressed on.

Antifriction paste, rubber parts 2.5 kg, DBL 6867.00

*BR00.45-Z-1002-06A

8

Position preassembled torsion bar (1) on rear axle and install using bolts (2).

 First screw the upper bolts (2) halfway into the torsion bar clamps (6) and then screw in the lower bolts until the torsion bar clamps (6) make contact with the axle.
Then screw in the upper bolts (2) until the torsion bar clamp (6) makes contact with the axle. Then tighten all bolts (2) to the specified torque.

 Model 900.65
Model 906.15/25/65
except code PL9 (Air suspension, company VB-Airsuspension)Screw/bolt, torsion bar clamp to rear axle tube

*BA32.35-N-1002-03B

9

Push torsion bar (1) upwards and attach to torsion bar linkage (4) with bolts (3) and nuts (5)

 Replace nuts (5).

 Model 900.65
Model 906.15/25/65
except code PL9 (Air suspension, company VB-Airsuspension)Screw/bolt, torsion bar linkage to torsion bar/longitudinal frame member

*BA32.35-N-1001-03B

Test and adjustment values for rear-axle torsion bar

Number

Designation

Model 900.65

Model 906.15/25/65
except code PL9 (Air suspension, company VB-Airsuspension)

BE32.20-N-1001-06A

Assembly position

Rear axle torsion bar

Dimension "a"

°

34

34

Picture

AR32.20-D-0315K

AR32.20-D-0315K

 Rear axle torsion bar

Number

Designation

Model 900

Model 906.15/25/65
except code PL9 (Air suspension, company VB-Airsuspension)

BA32.35-N-1001-03B

Screw/bolt, torsion bar linkage to torsion bar/longitudinal frame member

M121.5

Nm

106

106

M12

Nm

-

-

 Rear axle torsion bar

Number

Designation

Model 900

Model 906.15/25/65
except code PL9 (Air suspension, company VB-Airsuspension)

BA32.35-N-1002-03B

Screw/bolt, torsion bar clamp to rear axle tube

M8

Nm

-

-

M10 10.9

Nm

60

-

M12x1.5

Stage 1

Nm

100

100

Stage 2

°

60

60

M12

Nm

-

-

Repair materials

Number

Designation

Order number

BR00.45-Z-1002-06A

Antifriction paste, rubber parts 2.5 kg, DBL 6867.00

A 000 989 01 60