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23 4 762
0,2
23 4 763
A
23 4 761
1
Checking/adjusting fully assembled length of
input shaft
e
Caution:
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.
•
Secure dial gauge, BMW No. 23 4 762, in front
mounting hole of measuring stand,
BMW No. 23 4 761, and set to 0.2 mm (0.008 in)
preload.
•
Using dial gauge, zero to dimension "A" of the
zero gauge, BMW No. 23 4 763.
•
Pull off the output-side grooved ball bearing with
universal puller, BMW No. 00 7 500.
•
Remove the spacing washer.
•
Mount reference washer, BMW No. 23 4 764, on
the input shaft.
•
Place the grooved ball bearing on the reference
washer.
•
Insert input shaft with adapter disc,
BMW No. 23 4 767, in measuring stand.
23 4 764
23 4 767
2
•
Using the dial gauge, measure deviation from
zero of dimension "B" at the inner bearing race.
Deviation from zero is equivalent to the thickness
"C" of spacing washer (1).
•
Place a spacing washer (1) of the correct thick-
ness on the inner bearing race and check the de-
viation from zero.
A = B + C
e
Caution:
The maximum deviation from zero must not be ex-
ceeded.
•
Take the input shaft out of the measuring fixture.
•
Remove the adapter disc, spacing washer,
grooved ball bearing and reference washer.
•
Place a spacing washer (1) of the correct thick-
ness in position and press the grooved ball bear-
ing on to the input shaft.
Reference dimension for drive shaft:
Maximum deviation
from zero .................-0.05...0 mm (-0.002...0.00 in)
1
B
3
C
KR230290
23.19
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