Overhaul

WM 390937 Disassembling and assembling differential











Preliminary work

Preliminary work

1. Remove differential.

Disassembling differential

Removing differential





Overview of differential





Removal instructions for differential

1. Force crown wheel off differential housing with a punch.





Removing crown wheel

Assembling differential

Fitting differential





Overview of differential





Installation instructions for differential

1. Install differential pinions.

^ Insert the thrust washer assembly with hypoid transmission oil (Burmah-Oil TAF 21).
^ Oil the differential pinions thoroughly.
^ Insert large differential pinions and fix them with the flanged shafts (without circlip).
^ Insert the small differential pinions offset by 180° and swivel them in by turning the flanged shafts.
^ Align the thrust washer assembly and small differential pinions.
^ Insert the axle and secure with a roll pin.





Bevel gears

2. Heat up the crown wheel to approximately 100 °C and position with centering pin -A- (shop-made).





Crown wheel

Subsequent work

Subsequent work

1. Install differential.