TM-9-2320-279-34-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS DIRECT SUPPORT AND GENERAL SUPPORT, VOLUME 1 OF 3
TM-9-2320-279-34-1 - Page 36 of 709
TM 9-2320-279-34-1
Troubleshooting Index (Cont)
2-7. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 2-2.
Troubleshooting Subject index (Cont)
Subject
Vehicle System
Page
Load drives hoist moto
r ........................................... .
Material Handling
Crane (M977, M985
) ..
. 2-113
Low stall speed
...................................................
. Transmissio
n ..........
. 2-21
Mast raises or lowers erratically or slowl
y .......................... .
Material Handling
Crane (M977, M985
) ..
. 2-87
Mast will not hold raised positio
n .................................. .
Material Handling
Crane (M977, M985) . . . 2-89
Mast will not raise and lowe
r ......................................
. Material Handling
Crane (M977, M985
) ..
. 2-87
Meter runs too slowl
y .............................................
. Tanker.
. .............. .
2-25
No flow through mete
r ............................................
. Tanker .
...............
.
2-25
No visual or audible tilt alarm
s ....................................
. Material Handling
Crane (M983
) ........
. 2-76
Oil in reservoir is foamy .
..........................................
. Hydraulic .
............
.
2-22
Oil leaking at converter housin
g ...................................
. Transmission .
.........
. 2-16
One or more hydraulic circuits inoperative .
......................... .
Hydraulic .
............
.
2-22
Outrigger beam will not extend or retrac
t ........................... .
Material Handling
Crane (M977, M985)
2-8
5
.. .
Outrigger leg will not extend or retract
............................. .
Material Handling
Crane (M977, M985
) ..
. 2-86
Outrigger leg will not support load
................................. .
Material Handling
Crane (M977, (M985) . . 2-86
Outrigger operation slow or erratic .
................................ .
Material Handling
Crane (M977, M985
) ..
. 2-85
Outrigger will not extend or retract
................................
. Material Handling
Crane (M983
) ........
. 2-55
Outrigger will not support load or creeps upward
.................... .
Material Handling
Crane (M983
) ........
. 2-57
Overload protection circuit malfunctio
n ............................ .
Material Handling
Crane (M983
) ........
. 2-71
Remote control function rod does not respond to controller
...........
.
Material Handling
Crane (M983
)
........
. 2-64
Remote controller operating, but crane will not mov
e ................ .
Material Handling
Crane (M983
) ........
. 2-78
Remote controller will not operate crane
............................ .
Material Handling
Crane (M977, M985
) ..
. 2-126.2
Remote controller will not operate in one function
................... .
Material Handling
Crane (M977, M985
) ..
. 2-126.2
Rough shifting
...................................................
. Transmissio
n ..........
. 2-19
Self-recovery winch does not wor
k ................................. .
Self-Recovery Winch .
..
. 2-26
Steering is not smooth (seizing, binding
) ............................ .
Steering.
..............
.
2-24
Steering wheel turns restricted
....................................
. Steering .
..............
.
2-23
Swing motor continues to operate when swing control is in neutral
position
.........................................................
.
Material Handling
Crane (M977, M985
) ..
. 2-124
2-8
Change 3
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