ar3530b0620mx

Remove/install rear axle shaft

Type ar · topic 35.30 · version 0100 · 2020-01-13

Applies to: Rear axle 772.030/031/032/034

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.30 Final drive, drive shafts

EinPAS 17 Drivetrain/axle › 17.51 Rear axle › 17.51.51 Axle shaft/drive shaft

Also applies to engines/gearboxes: 772 030, 772 031, 772 032, 772 034

AR35.30-B-0620MX

Remove/install rear axle shaft

02.01.2020

Rear axle

772.030/031/032/034

Remove/install rear axle shaft

1

Fastening screws

2

Flange of the axle shaft

3

Semi-shaft

B35.30-A008-11

Remove

1

Remove the fastening screws (1) from flange of the axle shaft (2)

2

Remove the axle shaft (3)

If there is some difficulty to detach the axle shaft (3):

Apply a few blows using a bronze mandrel and a hammer.

To prevent oil from flowing from the axle to the ground:

Use an oil collection try.

Check

3

Check the splines of the axle shaft (3)

If there is cracks or other irreparable damages:

The axle shaft (3) should be replaced.

In case of roughness or burrs:

Roughness or burrs should be removed with a file or abrasive stone.

Clean

4

Remove the dirt from the splines of the axle shaft (3)


The splines should be free of dirt, rust, and burrs, otherwise:
There may be some difficulty to install the axle shaft (3), and the self-locking will not operate correctly.

Install

5

Apply silicone on junction surface of the axle shaft flange (2) with the wheel hub, and around the fastening screws (1)

Clean the surface of the axle shaft flange (2) and of the wheel hub.

The dirt in the parts can impede the action of the sealing silicone.

Prevent that the silicone enters the wheel hub.

Neutral silicone

*BR00.45-Z-1110-01A

6

Install the axle shaft (3) in the rear axle

If there is some difficulty for installing the axle shaft:

Remove the axle shaft (3) again, and repeat the procedure from the work step 3 onward.

7

Install the fastening screws (1)

Axle shaft mounting screw to wheel hub

*BA35.20-B-1003-06MX

Wheel hub

Number

Designation

Rear axle 772.030/031/032/034

BA35.20-B-1003-06MX

Axle shaft mounting screw to wheel hub

Nm

105...140

Repair materials

Number

Designation

Order number

BR00.45-Z-1110-01A

Neutral silicone

Dow Corning 768