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 571 of 1469

REMOVAL
NOTE
Front and rear axle carrier differentials are replaced the same way. This procedure covers
replacement of front axle carrier differential.
1.
Remove 18 nuts (Figure 1, Item 4) and washers (Figure 1, Item 5) from carrier differential (Figure 1, Item 1)
and axle housing (Figure 1, Item 6).
2.
Attach chain (Figure 1, Item 3) and lifting device (Figure 1, Item 2) to carrier differential (Figure 1, Item 1).
WARNING
All personnel must stand clear during lifting operations. A shifting or swinging load may cause
injury to personnel. Failure to comply may result in injury or death to personnel.
CAUTION
When lifting carrier differential out of axle housing, use care not to damage mounting studs.
Direct assistant to guide carrier differential out of axle housing.
3.
Remove carrier differential (Figure 1, Item 1) from axle housing (Figure 1, Item 6).
WARNING
Solvent cleaning compound is flammable and toxic. Do not use near an open flame and
always have a fire extinguisher nearby when solvents are used. Use only in well-ventilated
places, wear protective clothing, and dispose of cleaning rags in approved container. Failure
to comply may result in damage to equipment, injury, or death to personnel.
4.
Using wire brush and cleaning solvent, clean sealing compound from threads of mounting studs
(Figure
1,
Item
7).
5.
Inspect mating surfaces of differential flange (Figure 1, Item 8) and axle housing (Figure 1, Item 6) for nicks,
burrs, and cracks. Remove any light burring with crocus cloth. Replace differential flange or axle housing if
cracked, nicked, or heavily burred.
6.
Inspect mounting studs (Figure 1, Item 7) for bends or damaged threads. Replace mounting studs if bent or
threads are damaged.
TM 9-2320-272-23-3
0406
0406-2


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