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 TM 9-2520-246-34-1
c.
Countershaft
Assembly.
FRAME 1
NOTE
Readings must be within limits given in table 2-10. If
readings are not within given limits, throw away part
and get a new one.
Measure inside diameter of bearing (1).
1.
Measure thickness of thrust washer (2)
2.
Measure drive gear bore (3).
3.
Measure fifth gear bore (4).
4.
Measure diameter of countershaft journal (5).
5.
GO TO FRAME 2
Countershaft Drive and Fifth Gear Wear Limits
Table 2-10.
Size and Fit
of New Parts
Wear Limit
(inches)
(inches)
Item/Point of Measurement
Index Number
0.001
1.7332 to 1.7337
Bearing inside diameter
1
0.007
0.0598
Thrust washer thickness
2
None
Drive gear bore
1.995 to 2.0005
3
None
2.2495 to 2.2505
Fifth gear bore
4
1.7317 to 1.7322
0.002
Countershaft journal
5
diameter
2-56
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