TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 272 of 1313
GENERAL TROUBLESHOOTING INDEX - Continued
Malfunction/Symptom
Troubleshooting Procedure
8.
Harsh Or Hard Ride.
.........................................................................................................................
WP
0057
9.
Spring Leaf Defect.
...........................................................................................................................
WP
0058
WINCH
1.
Winch Does Not Operate.
.................................................................................................................
WP
0059
2.
Winch Operates In One Direction Only.
............................................................................................
WP
0060
3.
Drag Brake Does Not Operate.
.........................................................................................................
WP
0061
4.
Winch Will Not Hold Load.
................................................................................................................
WP
0062
5.
Automatic Brake Overheats.
.............................................................................................................
WP
0063
6.
Front Winch Operates At One Speed Only.
......................................................................................
WP
0064
7.
Rear Winch Cable Tensioner Will Not Operate.
................................................................................
WP
0065
8.
Vehicle Rolls While Operating Rear Inch.
.........................................................................................
WP
0066
PTO
1.
PTO Excessively Noisy.
....................................................................................................................
WP
0067
2.
PTO Shifts Hard.
...............................................................................................................................
WP
0068
3.
PTO Leaking Lubricant.
....................................................................................................................
WP
0069
RADIO INTERFERENCE
1.
Radio Interference.
............................................................................................................................
WP
0070
FIFTH WHEEL
1.
Trailer Will Not Hitch To Fifth Wheel.
................................................................................................
WP
0071
WRECKER
1.
Wrecker Hydraulic System Does Not Operate.
.................................................................................
WP
0072
2.
Wrecker Hydraulic Pump Noisy.
........................................................................................................
WP
0073
DUMP BODY
1.
Dump Body Will Not Raise.
...............................................................................................................
WP
0074
2.
Dump Body Will Not Lower.
..............................................................................................................
WP
0075
3.
Dump Body Will Not Hold In Raised Position.
...................................................................................
WP
0076
4.
Dump Hydraulic Pump Noisy.
...........................................................................................................
WP
0077
5.
Dump Tailgate Will Not Open.
...........................................................................................................
WP
0078
TM 9-2320-272-23-1
0005
0005-3
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