23.19
Checking/adjusting fully-compressed length of
input shaft
e Caution:
To adjust and check the fully-compressed length,
deviation from zero must be measured as described
below, and adjusted by means of a shim washer.
Make sure before each measuring step, even if the
shaft is not being installed, that the deep-groove ball
bearing is fully compressed.
•
Pull off output-side deep-groove ball bearing
with universal puller, BMW No. 00 7 500.
•
Take off the spacing washer.
•
Insert zero gauge, BMWNo.234763, into
measuring stand, BMW No. 23 4 761.
•
Secure dial gauge, BMW No. 23 4 762, in front
mounting hole on 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, BMWNo.234763.
•
Remove the zero gauge from the measuring fix-
ture.
•
Mount measuring disc, BMWNo.234764, on
the input shaft.
•
Place the deep-groove ball bearing on the meas-
uring disc.
•
Insert input shaft with adapter disc,
BMW No. 23 4 767, in measuring stand.
•
Using the dial gauge, measure deviation from
zero to dimension “B” at the inner bearing race.
The deviation from zero represents the thickness
“C” of spacing washer (1).
•
Place a spacing washer (1) of the determined
thickness on the inner bearing race and check
the deviation 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.
•
Take off the adapter disc, spacing washer, deep-
groove ball bearing and measuring disc.
•
Place a spacing washer (1) of the determined
thickness in position and press the deep-groove
ball bearing on to the input shaft.
Adjusting dimensions for input shaft:
Maximum deviation
from zero ......... -0.05 mm (0.002 in) … 0.00 mm/in
Fully-compressed
length......... 138.55…138.60 mm (5.455…5.457 in)
0
90
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80
0
90
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0
90
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23 4 762
KR230290
23 4 767
23 4 764
0.2
1
2
3
23 4 763
23 4 761
1
C
B
A
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