Test and adjustment values for interwheel differential lock
Number | Designation | Rear axle 740.8 | Rear axle 748.2 | Rear axle 748.7 | |
BE35.40-N-1001-02A | Specified axial play of shift collar for differential assembly interwheel differential lock | mm | 0.5 | 0.5 | 0.5 |
Differential lock
Number | Designation | Rear axle | Rear axle | Rear axle | |
BA35.40-N-1002-01A | Bolt, differential lock shift cylinder to differential assembly | Nm | 25 | 25 | 25 |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1027-06A | Synthetic grease 50 g | A 001 989 32 51 10 |
W35.40-1021-12
Checking
1 Screw in one bolt M181.5 (arrow) as far as the stop in the interwheel differential lock shift cylinder.
The interwheel differential lock is locked mechanically.
2 Measure the axial play between the tooth root of the engaged shift collar (1) and the tooth crest of the dog clutch (2) using a gauge.
3 If necessary, adjust axial play using adjusting washers.
W35.40-1020-02
Adjust
4 Remove differential lock cover.
5 Screw bolt (1) into the shift piston (2) and pull the shift piston (2) with adjusting washer (4).
6 Coat the cylinder liner (3) and the shift piston (2) with synthetic grease.
7 Install shift piston (2) with corresponding adjusting shim (4).
Reducing axial play: insert thicker adjusting shim (4).
Increasing axial play: insert thinner adjusting shim (4).
8 Install differential lock cover with new seal.
Install the new gasket with the raised bead towards the cover.