TM-9-2320-272-23-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-3 - Page 1413 of 1469
CLEANING AND INSPECTION
WARNING
Eyeshields must be worn when cleaning with a wire brush. Flying rust and metal particles
may cause injury to personnel. Failure to comply may result in injury or death to personnel.
NOTE
Perform Steps (1) through (8) for upper torque rod.
1.
Clean rust from upper torque rod bracket axle mating surface and dowel holes.
2.
Inspect upper torque rod bracket for breaks and cracks. Replace if broken or
cracked.
3.
Inspect upper torque rod plate for breaks and cracks. Replace if broken or cracked.
4.
Clean rear axle and upper torque rod dowel and upper spring bracket dowel.
5.
Inspect upper torque rod dowel and upper spring bracket dowel for flat, broken, or out-of-round condition.
Replace if flat, broken, or out-of-round.
NOTE
Perform Steps (6) and (7) only if dowels are to be replaced.
6.
File weld securing upper torque rod bracket and upper spring bracket dowels to rear axle and remove dowels.
7.
Tap in upper torque rod bracket dowel and upper spring bracket dowel in rear axle and spot-weld (TM 9-237).
Dowel height must be 3/8 in. (9.53 mm).
8.
Inspect upper and lower torque rods around ball shafts for breaks, cracks, and separation of rubber from torque
rods.
9.
Clean and inspect lower torque rod bracket for breaks and cracks. Replace if broken or cracked.
END OF TASK
TM 9-2320-272-23-3
0544
0544-6
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