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 901 of 1393
CLEANING AND INSPECTION
1.
For General Cleaning Instructions, refer to (Volume 5, WP
0817).
2.
For General Inspection Instructions, refer to (Volume 5, WP
0818).
3.
Inspect drum shaft, input shaft(s), and worm shafts for bends, cracks, breaks, chips, and wear. Refer to
Table
1, Hoist Winch Wear Limits, for measurements. Replace drum shaft, input shaft, and worm shaft if
damaged or worn.
4.
Inspect drum, cover, gearcase, bracket, and plate for cracks, bends, damaged threads, and wear. Refer to
Table 1, Hoist Winch Wear Limits, for measurements. Replace drum, cover, gearcase, bracket, and plate, if
damaged or worn.
5.
Inspect gearcase bearings and thrust washers for wear. Refer to Table 1, Hoist Winch Wear Limits, for
measurements. Replace gearcase bearings and thrust washers if worn.
6.
Inspect worm gear and input shaft gear for cracks, nicks, burrs, ridged, chipped, broken teeth, or particles in
teeth of worm gear. Refer to Table 1, Hoist Winch Wear Limits, for measurements. Replace worm gear and
input shaft gear, if damaged or worn.
TM 9-2320-272-23-4
0696
0696-12
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