23.36
Removing and installing taper roller
bearing race
•
Gearbox cover temperature at bearing seat
100 °C.
•
Depending on tolerance, the bearing shell may
already slide out of its seat when the housing is
heated. If necessary, pull bearing race out with
Kukko counter-support, BMW No. 00 8 562, and
internal puller, BMW No. 00 8 561.
•
Remove spacing washers/oil baffle plate.
•
Gearbox cover temperature at bearing seat
100 °C.
•
Place shims of the calculated thickness in the
gearbox cover/include the oil retaining plate (1).
•
Using drift, BMW No. 23 4 670, and handle,
BMW No. 00 5 500, insert the bearing race in the
gearbox cover while it is still hot.
Checking friction coefficient of input
shaft taper roller bearing
•
Install gearbox cover
X Tightening torque:
Retaining screws.......................................... 10 Nm
•
Using adapter, BMW No. 23 3 670, and friction
meter, BMW No. 00 2 570, check friction in the
input shaft taper roller bearing by turning at
app. 1 revolution per second.
e Caution:
To check friction coefficient of taper roller bearing
on input shaft, only install the input shaft in the gear-
box.
Bearings must be oiled.
Friction value:
Preload 0.2 mm (0.00787 in) =
friction value 0.5 – 1.0 Nm
00 8 562
00 8 561
j
100
RS230030
00 5 500
23 4 670
1
j
100
RS230032
00 2 570
23 3 670
RS230291
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