User Guide

33.18
Shimming housing cover
•
In order to obtain the correct taper roller bearing
preload, the housing cover must be correctly
shimmed.
•
Using depth gauge, measure distance “a”.
•
Place measuring ring, BMWNo.332601, in po-
sition and secure.
•
Measure from the outer ball bearing race through
the cutout in the measuring ring to the housing
mating face and determine distance “b”.
– Distance “a” – distance “b” = shim thickness
(without preload).
•
Lightly grease the shim of the selected thick-
ness, and place it on the crown wheel.
Preload:................ 0.05...0.1 mm (0.002...0.004 in)
Installing housing cover
•
Lightly oil the shaft sealing ring (1).
•
Using drift, BMW No. 33 1 860, and handle,
BMW No. 00 5 500, drive in shaft sealing ring (1).
e Caution:
Do not overheat shaft sealing ring and cordring seal.
•
Lightly oil or grease cordring seal and install.
•
Heat the housing cover to 60 °C (140 °F) and
place it on the crown wheel.
•
Tighten securing screws in diagonally opposite
sequence.
X Tightening torque:
Housing cover to housing ............................ 35 Nm
Installing rear drive shaft
•
Coat teeth of drive pinion with Optimoly MP 3.
•
Place the rear drive shaft on the input pinion.
e Caution:
Make sure that the circlip is correctly seated in the
drive shaft.
•
Snap the circlip into position by striking the rear
drive shaft lightly with a plastic-headed mallet.
a
KR330290
b
KR330300
33 2 601
KR330310
00 5 500
33 1 860
1
w
h
60