Disassemble/assemble shaft for through-drive

AR35.30-B-0492A

Disassemble/assemble shaft for through-drive

10.11.2017

Rear axle

746.231/305

1

Retaining ring

2

Tapered roller bearing

3

Bearing cap

4

Longitudinal differential axle



Disassemble

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

1

Remove longitudinal differential axle (4)

AR35.30-B-0491C

2

Fasten the longitudinal differential axle (4) by the body


Do not fasten by the axle's notched region.
It can damage the notched axle.

3

Remove the retaining ring (1) from the bearing cap (3)

 Utilize appropriate tool.

4

Remove the bearing cap (3) from the longitudinal differential axle (4)

5

Remove the tapered roller bearings (2) from the longitudinal differential axle (4)

 Remove the tapered roller bearings (2) with hydraulic press and appropriate tools.

 Remove the tapered roller bearing outer raceway (2) from within bearing cap (3).



Measure

6

Determine the thickness of the retaining ring (1)

AR35.30-B-0457-01A



Assemble

7

Heat the bearing cap (3) to approx. 80°C and install the outer raceway of one of the tapered roller bearings (2)


The mounting must be done quickly, with the bearing cover (3) still warm.
Otherwise the tapered roller bearing raceway (2) will not fit into the bearing cap housing (3).

 The raceway conical part must be facing the larger diameter of the bearing cap (3).

8

Heat one of the tapered roller bearings (2) to approx. 80°C and install it on the bounce of the longitudinal differential axle (4)

 The conical part of tapered roller bearing (2) must be facing the bounce of the longitudinal differential axle (4).

9

Heat the other tapered roller bearing (2) to approx. 80°C and mount it over the tapered roller bearing (2) already installed

 The conic part of the tapered roller bearing (2), must be installed opposite the bearing already mounted.

 The raceway of this tapered roller bearing (2) need not be mounted.

 Ensure a good seating between the bearings.

10

Install the bearing cap (3) on the longitudinal differential axle (4)

 The tapered roller bearing raceway (2) must already be mounted.



Check

11

Check the axial play of the longitudinal differential

AR35.30-B-0457-01A



Assemble

12

Remove the retaining ring (1) from the bearing cap channel (3)

13

Mount the longitudinal differential axle (4) on the bridge

AR35.30-B-0491C