TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 902 of 1393
CLEANING AND INSPECTION - Continued
Table
1.
Hoist Winch Wear Limits.
ITEM NO.
ITEM/POINT OF MEASUREMENT
WEAR LIMITS/TOLERANCES
INCHES
MILLIMETERS
1, 2
Shaft support (2)
Inner diameter - bushing - maximum
2.130
54.10
3
Drum shaft
Outer diameter - four places - minimum
2.123
53.92
4
Worm shaft
Outer diameter - bearing journal - minimum
Outer diameter - sealing surface - minimum
1.771
1.765
44.98
44.83
5
Input shaft - outer diameter minimum
1.746
43.35
6
Gearcase
Inner diameter - bushing - maximum
Width - cover edge to hub
Inner diameter - bearing bores (2) - maximum
2.130
4.469
3.937
54.10
113.51
100.00
7
Cover
Inner diameter - bushing - maximum
Width - bushing hub - minimum
2.130
2.000
54.10
50.8
8
Bearings (2)
Inner diameter - inner race - maximum
Outer diameter - outer race - minimum
1.771
3.936
44.98
99.97
9
Drum - outer diameter - minimum
4.992
126.80
10
Thrust washers (2) - thickness - minimum
0.062
1.57
11
Worm gear - width - hub - minimum
2.492
63.30
12
Input shaft gear
1.88
47.75
END OF TASK
TM 9-2320-272-23-4
0696
0696-13
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