Vehicles after change point in 1982
REPLACING SHAFT SEAL FOR
INPUT FLANGE
- Final Drive Removed -
Remove final drive - see 33 10 010
Mount final drive on Special Tool 33 1 010.
Drain oil:
Installation:
Pour in oil - oil volume*.
See Service Inforamtion of Group 00 for oil
grade.


33 10 010
* See Specifications

Lift out the lockplate.
Installation:
Drive in the new lockplate with Special Tools
33 4 050 and 00 5 500.

Punch mark position of nut (1) to the input
shaft.

Unscrew nut (1), counterholding on the flange
with Special Tool 23 0 020.

Pull off the input flange with Special Tool
33 1 150.

Pull out the shaft seal with Special Tool
00 5 010 and a suitable thrust piece.

Installation:
If the bearing surface on the input flange is
scored seriously, replace the input flange.
Important!
If the input flange has to be replaced, measure
the friction torque with the old input flange.
If applicable, tighten the nut to the punch
mark, measure and note the friction torque
value - see 33 11 011.
The old shaft seal does not have to be installed
for measuring.


33 11 011

Dip a new shaft seal in final drive gear lube **
and drive in the seal flush with Special Tool
33 1 270.


** See Service Information of Gr. 00

Press on the input flange, if necessary with
Special Tool 23 1 300; do not tighten.

Tighten the input flange with collar nut (1)
and then turn the nut further until the punch
marks are aligned precisely.
Important!
Never tighten the collar nut past the punched
marks and then back again, since then the
bushing would have to be replaced - see
33 12 551.
Installation:
Replace the lockplate.
Pour in final drive gear lube**.


33 12 551
** See Service Information of Gr. 00