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Page Title:
Table 2-20. Countershaft Wear Limits |
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 TM 9-2520-246-34-1
FRAME 2
NOTE
Readings must be within limits given in table 2-20. If read-
ings are not within given limits, throw away part and get a
new one.
1.
Measure width of two countershaft keyways (1).
2.
Measure diameter of two countershaft gear surfaces (2).
3.
Measure diameter of two countershaft bearing surfaces (3).
GO TO FRAME 3
Table 2-20.
Countershaft Wear Limits
Size and Fit
Wear Limit
of New Parts
(inches)
(inches)
Item/Point of Measurement
Index Number
0. 5028
Countershaft keyway width
0.4990 to 0.5010
1
2.3765 to 2.3775
2.3755
2
Countershaft gear surface diameter
2.0010 to 2.0015
2.0005
3
Countershaft bearing surface diameter
2-180
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