TM-9-2520-246-34-1
TRANSMISSION MODEL 3053A; TRANSMISSION TRANSFERS MODEL T-136-21 AND MODEL T-136-27; POWER TAKEOFFS MODEL WN-7-28, MODEL WND-7-28 AND MODEL P-136-C
TECHNICAL MANUAL; MAINTENANCE, DIRECT SUPPORT AND GENERAL SUPPORT LEVEL
JANUARY 1981
TM-9-2520-246-34-1 - Page 78 of 418
TM 9-2520-246-34-1
FRAME 3
NOTE
Readings must be within limits given in table 2-12.
The letter L indicates a loose fit and the letter T
indicates a tight fit.
If readings are not within
given limits, throw away part and get a new one.
1.
Measure fit of drive gear (1) on countershaft journal (2).
2.
Measure fit of fifth gear (3) on countershaft journal (4).
3.
Measure fit of bearing (5) on countershaft journal (6).
4.
Measure fit of bearing (7) on countershaft journal (8).
END OF TASK
Table 2-12.
Countershaft Assembly Fits and Tolerances
Index Number
1 and 2
3 and 4
5 and 6
7 and 8
Item/Point of Measurement
Fit of drive gear on counter-
shaft journal
Fit of fifth gear on counter-
shaft journal
Fit of bearing on counter-
shaft journal
Fit of bearing on counter-
shaft journal
Size and Fit
of New Parts
(inches)
0.0005T to 0.0025T
0.0005T to 0.0025T
0.0005L to 0.0015L
0.0002L to 0.0002T
Wear Limit
(inches)
None
None
None
None
2-58
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