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 24 of 418
TM 9-2520-246-34-1
FRAME 2
1.
2.
3.
4.
GO
Measure
Measure
Measure
Measure
gear (8)
NOTE
Readings must be within limits given in table 2-1. The
letter L indicates a loose fit.
If readings are not within
given limits, throw away both gears and get new ones.
Some gears on the countershaft cannot be taken off. If
these gears are damaged, throw away countershaft and
get a new one.
backlash between
backlash between
backlash between
backlash between
.
TO FRAME 3
input shaft gear (1) and countershaft drive gear (2)
fifth gear (3) and countershaft fifth gear (4).
third gear (5) and countershaft third gear (6).
second gear (7) and countershaft second-reverse
TA 087802
Table 2-1.
Transmission Forward Speed Backlash Wear Limits
Index Number
1 and 2
3 and 4
5 and 6
7 and 8
Item /Point of Measurement
Input shaft gear to counter-
shaft gear
Fifth gear to countershaft
fifth gear
Third gear to countershaft
third gear
Second gear to countershaft
second-reverse idler gear
Size and Fit
of New Parts
(inches)
0.006 to 0.012
0.006L to 0.012L
0.006L to 0.012L
0.006L to 0.012L
Wear Limit
(inches)
0.016
0.019L
0.016L
0.019L
2-4
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