Vehicles before change point in 1982
REPLACING FINAL DRIVE FLANGE SHAFT SEAL
(without removing/installing drive pinion)
Remove and install final drive - 33 10 010.
Drain oil.
Mount final drive on Special Tool 33 1 060,
after unscrewing oil drain plug (1) for this
purpose.


33 10 010

Remove lockplate.
Check total frictional torque value with
Special Tool 00 2 000 and note,
e.g. 250 Ncm or (22 in.lbs.).
Important: This measured total frictional
torque value plus the new shaft seal
frictional torque value must be reached
when assembled, but not exceeded.

Mark relation of input flange and collar nut
to pinion.
Counterhold input flange with Special Tool
33 1 100 and unscrew collar nut.
Installation: Torque values¹).


¹) See Specifications

Pull off input flange with Special Tool
33 1 150.
Check shaft seal bearing surface on input
flange.
Replace input shaft when bearing surface
shows serious wear.

Pull out shaft seal with Special Tools
00 5 000 and 00 5 006.

Installation: Lubricate sealing lip of shaft seal
with final drive gear lube and knock in flush
with Special Tools 31 2 040 and 00 5 500.

Important: Watch marks on input flange and
pinion. Press on input flange with Special
Tool 23 1 300. Tighten collar nut up to punch
mark and check frictional torque value.

Determine total frictional torque value.
Example:
Total frictional
torque priot to
disassembling.........250 Ncm (22 in.lbs)
New shaft seal.......+ 20 Ncm (2 in.lbs)
Adjust new total
frictional torque
value to..................270 Ncm (24 in.lbs.)
Important: Tighten collar nut (1) to at least
150 Nm (108 ft.lbs.). If this tightening torque
value cannot be reached or new total frictional
torque value is exceeded, replace holding
sleeve (2) and repeat measurement.
Lock collar nut with lockplate. Add oil¹).


¹) See Specifications