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Page Title:
Inspection and Repair - continued |
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 TM 9-2320-209-34-2-1
Check that front bearing (1) and rear bearing (2) are not damaged.
1.
2. Using inside micrometer, measure inner diameter of front bearing (1) and
rear bearing (2). Note measurements.
3. Using outside micrometer, measure outside diameter of pinion gear (3). Note
measurement.
4. Using outside micrometer, measure outside diameter at front end of shaft (4).
Note measurement.
5. Subtract measurement made in step 3 from measurement made in step 2. Check
that fits of rear bearing (2) to pinion gear (3) are within limits given in
6. Subtract measurement made in step 4 from measurement made in step 2. Check
that fits of front bearing (1) through shaft (4) are within limits given in
7. Using outside micrometer measure outer diameter of front bearing cup (5) and
rear bearing cup (6). Note measurements.
8. Using inside micrometer, measure openings in differential carrier (7). Note
measurements.
9. Subtract measurements made in step 7 from measurements in step 8. Check
that fits of bearing cups (5 and 6) are within limits given in table 10-8. If
fits are not within limits given, get new parts for worn ones.
10. Check that bevel pinion gear (3) is not chipped, burred, cracked, scored or
broken. Get new gear if damage cannot be fixed with a honing stone.
END OF TASK
and the letter L shows a loose fit.)
Size and Fit
of New Parts
Wear Limit
Number
Item/Point of Measurement
(inches)
(inches)
1
to
4
Fit
of
bearing
on
shaft
0.0010L
to
0.0015T
None
2
to
3
Fit
of
bearing
on
pinion
0.0000L
to
0.0015T
None
5
to
7
Fit
of
bearing
to
case bore
0.0025T
to
0.0050T
0.0020T
6
to
7
Fit
of
bearing
to
case bore
0.0025T
to
0.0050T
0.0020T
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