TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 111 of 1207
TM 9-2320-361-20
MECHANICAL SYSTEMS TROUBLESHOOTING
SYMPTOM INDEX (Contd)
MALFUNCTION
TROUBLESHOOTING
NO.
MALFUNCTION
PROCEDURE
PAGE
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
2-26
TRANSFER CASE
Burning odor evident with clutch engaged. . . . . . . . . . . . . . . . . . . . .
Transfer case difficult to shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer case grinds or pops out of gear during normal vehicle
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer case noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PROPELLER SHAFTS
Propeller shaft vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIFFERENTIALS
Differential noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential clunks during turns or initial takeoff. . . . . . . . . . . . . . . .
Differential vibrates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential leaks oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WHEELS AND TIRES
Uneven tire wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle shimmy, wobble, or vibration. . . . . . . . . . . . . . . . . . . . . . . . .
STEERING
Excessive play in steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering wheel hard to turn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle wanders or pulls to one side. . . . . . . . . . . . . . . . . . . . . . . . .
FRAME AND BRACKETS
Towing pintle does not latch or lock . . . . . . . . . . . . . . . . . . . . . . . . .
Pintle hook does not turn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excessively loose lifting shackle . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loose spare tire carrier . . . . . . . . . . . . . . . . . . . . . . . . . .
SUSPENSION
Noisy suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous wandering or swaying (poor control) . . . . . . . . . . . . . . . .
Vehicle sags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WINCH
Winch inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winch operates in one direction only. . . . . . . . . . . . . . . . . . . . . . . . .
Operates at one speed only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drag brake does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winch does not hold load when power released . . . . . . . . . . . . . . . . .
Automatic brake overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle rolls while operating rear winch . . . . . . . . . . . . . . . . . . . . . .
POWER TAKEOFF
Power takeoff noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power takeoff difficult to shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Transmission-driven) power takeoff inoperative . . . . . . . . . . . . . . . .
(Transfer-driven) power takeoff inoperative. . . . . . . . . . . . . . . . . . . .
2-36
2-37
2-37
2-37
2-37
2-37
2-38
2-38
2-38
2-38
2-39
2-39
2-40
2-40
2-41
2-41
2-41
2-41
2-42
2-42
2-42
2-42
2-43
2-43
2-43
2-43
2-43
2-43
2-43
2-44
2-44
2-44
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