23.21
23 11 Checking and adjusting fully assembled
length of output shaft
e Attention:
Check and adjust the fully assembled length as de-
scribed below and install a spacing washer of the
correct thickness.
Before measuring, always make sure that the
grooved ball bearings are pressed fully home, even
if the shaft has not been disassembled and reas-
sembled.
•
Position dial gauge, BMW No. 23 4 762, in rear
locating bore of stand, BMW No. 23 4 761, and
set to 0.2 mm (0.0078 in) preload.
•
Using dial gauge, zero to dimension “A” of the
zero gauge, BMW No. 23 4 763.
•
Pull off the input-side grooved ball bearing with
universal puller, BMWNo.007500.
•
Remove the spacing washer.
•
Place reference washer, BMW No. 23 4 766, on
the output shaft.
•
Place the grooved ball bearing on the reference
washer.
•
Insert the output shaft into the measuring stand.
•
Using the dial gauge, measure the deviation from
zero of dimension “B” at the inner bearing race.
Deviation from zero is equivalent to the
thickness “C” of spacer (1).
•
Place spacer (1) of correct thickness on inner
bearing race and check deviation from zero.
A = B + C
e Attention:
The maximum deviation from zero must not be ex-
ceeded.
•
Remove spacing washer, grooved ball bearing
and reference washer.
•
Place a spacing washer (1) of the correct thick-
ness on the output shaft and press on the
grooved ball bearing.
Reference dimension for output shaft:
The maximum permissible deviation from zero is
........................ -0.05…0.00 mm (-0.0019…0.00 in)
0
90
10
20
30
40
50
60
70
80
0
90
10
20
30
40
50
60
70
80
0
90
10
20
30
40
50
60
70
80
KR230300
23 4 763
23 4 761
23 4 762
23 4 766
0.2
1
3
2
1
C
B
A
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