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 140 of 985
TM 9-2320-279-20-1
Troubleshooting Index (Cont)
2-15. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 2-8. Troubleshooting Subject Index (Cont)
Subject
Vehicle System
Page
ENGINE HIGH IDLE does not operate (M983) .
..................
Engine .
...................
2-70
ENGINE HIGH IDLE does not operate when craning
(M984, M985E1
.............................................
Engine .
...................
2-78
ENGINE HIGH IDLE does not operate (M984E1) .
...............
Engine .
...................
2-82
ENGINE HIGH IDLE does not operate when craning (M984E1) .
..
Engine .
...................
2-89
ENGINE HIGH IDLE does not operate when using heavy-duty winch
in manual control (M984E1)
..................................
Heavy-Duty Winch .
........
2-106
ENGINE HIGH IDLE does not operate when using heavy-duty winch
in remote control (M984E1)
...................................
Heavy-Duty Winch .
........
2-103
ENGINE HIGH IDLE does not operate when using retriever system
(M984E1)
...................................................
Heavy-Duty Winch .
........
2-110
ENGINE HIGH IDLE does not operate when using heavy-duty winch
(M984)
.....................................................
Engine .
...................
2-99
Engine fails to develop full power/does not run smoothly .
.........
Engine .
...................
2-63
Engine speed control does not operate (M978)
....................
Engine .
...................
2-74
ENGINE STOP switch does not activate fuel shutdown solenoid .
..
Electrical .
.................
2-126
Engine will not start, or stalls
..................................
Fuel .
......................
2-111
Ether starting aid does not work
................................
Electrical
..................
2-130
Excessive movement of trailer kingpin in fifth wheel
.............
Fifth Wheel .
...............
2-175
Excessive noise from winch
.....................................
Self-Recovery Winch .
.......
2-177
Fairlead tensioner motor does not operate (M984El) .
.............
Heavy-Duty Winch .
........
2-194
Front axle parking brakes will not apply (M984El)
...............
Dual Air Brake .
............
2-173
Front axle parking brakes will not release (M984El)
.............
Dual Air Brake .
............
2-174
Fuel flow does not stop within 15 seconds after opening VI2 B/L
PRECHECK VALVE when bottom loading with exterior pump .
..
Tanker .
...................
2-226
Fuel level gage does not register or registers inaccurately .
........
Fuel .
......................
2-113
Fuel servicing rate is slow or no flow
............................
Tanker .
...................
2-235
Fuel spills from vent when bottom loading with exterior pump .
...
Tanker .
...................
2-225
Hard to steer .
.................................................
Steering .
..................
2-147
Heater
fails to sufficiently warm engine (coolant pump operating)
.
Arctic Heater Kit .
..........
2-255
Heater fan motor will not operate
...............................
Electrical .
.................
2-115
Heat output to battery box too low
..............................
Arctic Heater Kit
...........
2-254
Highcrankcase pressure .
......................................
Engine .
...................
2-66
High oil consumption
..........................................
Engine
....................
2-66
Hoist operation slow or abnormal when lifting or lowering load
....
Material Handling Crane
(M977, M985, M984E1) .
... 2-201
Hoist
will not lift or lower load
..................................
Material Handling Crane
(M977, M985, M984El) .
... 2-200
Left or right windshield wiper does not work .
....................
Air .
.......................
2-140
Light not working
.............................................
Electrical .
.................
2-120
Loss of fluid
...................................................
Transmission .
..............
2-154
Marker and identification lights do not work
.....................
Electrical .
.................
2-129
Mast raises or lowers abnormally, slowly, or will not raise or lower .
Material handling Crane
(M977, M9851, M984El) .
... 2-197
Moisture in air system
.........................................
Air .
.......................
2-137
2-56
Change 3
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