TM-9-2320-279-20-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3
TM-9-2320-279-20-1 - Page 138 of 985
TM 9-2320-279-20-1
Troubleshooting Index (Cont)
2-15. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 2-7.
System Symptom Index (Cont)
Troubleshooting
Procedure
Page
SELF-RECOVERY WINCH
1.
Winch operation is jerky, slow, or does not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-175
2.
Excessive noise from winch . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
2-177
3.
Winch will not reverse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
......
2-178
4.
Winch will not pull load
. . . . . . . . . . . . . . . . .
. . . . . . .
. . . . . . . . . . . . . .
.... 2-178
STEERING SYSTEM
1. Hard tosteer .
....................................................................
2-147
2.
Wanders or pulls to one side
.......................................................
2-148
3.
Sudden increase in effort to turn steering wheel
.....................................
2-150
4.
Steering wheel does not turn fully in either direction
................................
2-152
SUSPENSION (SHOCK ABSORBERS, SPRINGS, AND TORQUE RODS)
1.
Vehicle wanders or shimmies
......................................................
2-160
2.
Vehicle leans to one side, or rear sags
..............................................
2-161
3.
Rear axle tandem out of line or not tracking properly
................................
2-161
TANKER
1.
DISCHARGE LINE PRESSURE GAGE (DLPG) or VENTURI/NOZZLE PRESSURE
GAGE (VNPG) not working . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . .
2-209
2.
Fuel spills from vent when bottom loading with exterior pump . . . . . . . . . . . . . . . .
2-225
3.
Fuel flow does not stop within 15 seconds after opening V12 B/L PRECHECK VALVE
when bottom loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-226
4.
Cannot
bottom load fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-228
5.
AUXILIARY PUMP will not pump fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
2-230
6.
Fuel servicing rate is slow or no flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . .
2-235
7.
Cannot
evacuate fuel from hoses or primary pump stops or fails to deliver rated flow . . .
2-236
8.
Primary pump makes excessive noise
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-239
9.
AUXILIARY
PUMP
fails to deliver rated flow . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-240
10.
AUXILIARY
PUMP
makes
excessive noise .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-240
11.
TANK
LEVEL
INDICATOR
gage
does
not register proper fuel level .
. . . . . . . . .
2-241
12.
Deleted
13. Deleted
TRANSFER CASE
1.
Noisy transfer
case
. . . . . . . . . . . . . . . . . . . .
... . . .
....
2-154
2.
Transfer does not shift into high or low, or slips out of gear . . . . . . . . . . . . . . . . . . . . . . . . . .
2-155
TRANSMISSION
1.
Transmission oil temperature gage continuously reads over 250°F
....................
2-157
2.
Transmissionnoisy .
..............................................................
2-159
3.
Will not shift into gear, slips out of gear, or operates abnormally
......................
2-159
WHEELS AND TIRES
1. Tires
unevenly
worn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . . . .2-174
2-54
Change 3
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