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 1298 of 1313
Subject
WP Sequence No.-Page No.
HORN INOPERATIVE.
.....................................................................................................
WP 0109-1
I
INDIVIDUAL LIGHTS DO NOT LIGHT WITH DIRECTIONAL SIGNAL LEVER IN ANY
POSITION.
........................................................................................................................
WP 0097-1
INSUFFICIENT BRAKES (VEHICLE STOPPING DISTANCE TOO LONG, NO
APPARENT AIR SYSTEM FAILURE WITH GAUGES AT NORMAL OPERATING
PRESSURE, WARNING BUZZER NOT SOUNDING).
....................................................
WP 0120-1
L
LOOSE SPARE TIRE CARRIER.
.....................................................................................
WP 0049-1
LOSS OF AMBER WARNING LIGHT AND/OR OVERSPEED LIGHT.
............................
WP 0150-1
LOSS OF COOLANT.
.......................................................................................................
WP 0029-1
LOW AIR PRESSURE WARNING BUZZER WILL NOT SHUT OFF (AIR PRESSURE
GAUGES AT NORMAL SYSTEM PRESSURE).
..............................................................
WP 0110-1
LOW AIR PRESSURE WARNING BUZZER WILL NOT SHUT OFF AND PARKING
BRAKE WARNING LIGHT FLASHES WITH HAND/PARKING BRAKE IN ANY
POSITION (AIR PRESSURE NORMAL).
.........................................................................
WP 0111-1
LOW OIL PRESSURE.
.....................................................................................................
WP 0017-1
LOW TRANSMISSION OIL PRESSURE.
.........................................................................
WP 0032-1
N
NO AIR PRESSURE (WARNING BUZZER SOUNDING, AIR PRESSURE NOT
BUILDING TO NORMAL OPERATING RANGE AS INDICATED BY GAUGES).
............
WP 0126-1
NO ALTERNATOR OUTPUT (100 AMP ALTERNATOR).
...............................................
WP 0090-1
NO CAB HEAT (COOLANT TEMPERATURE GAUGE READS NORMAL).
....................
WP 0117-1
NO LIGHTS OPERATE WITH DIRECTIONAL SIGNAL CONTROL LEVER IN ANY
POSITION.
........................................................................................................................
WP 0098-1
NO OR LOW ALTERNATOR OUTPUT.
...........................................................................
WP 0089-1
NO RESPONSE TO SHIFT LEVER MOVEMENT.
...........................................................
WP 0034-1
O
OIL PRESSURE GAUGE INOPERATIVE (OIL LEVEL IS CORRECT).
...........................
WP 0103-1
OIL THROWN FROM TRANSMISSION DIPSTICK TUBE.
..............................................
WP 0038-1
ONE OR MORE TRAILER LIGHTS INOPERATIVE.
........................................................
WP 0113-1
P
PARKING BRAKE DOES NOT HOLD VEHICLE ON GRADE.
........................................
WP 0118-1
PARKING BRAKE DRAGS, AS INDICATED BY SMOKING OR BURNING SMELL.
......
WP 0119-1
PINTLE HOOK DOES NOT TURN.
..................................................................................
WP 0047-1
POOR ACCELERATION AND/OR LACK OF POWER.
....................................................
WP 0014-1
PRIMARY AIR SYSTEM FAILS TO MAINTAIN PRESSURE (NO MAJOR LEAKS, AIR
CAN BE HEARD ESCAPING INTO AIR INTAKE STACK, PARKING BRAKE
APPLIED).
.........................................................................................................................
WP 0132-1
PRIMARY PRESSURE GAUGE READS NO PRESSURE, LOW PRESSURE, OR
BUILDS TO NORMAL OPERATING PRESSURE SLOWLY. SECONDARY PRESSURE
GAUGE READS NORMAL (ENGINE IDLING, BRAKE PEDAL NOT APPLIED).
............
WP 0130-1
PROTECTIVE CONTROL BOX ASSEMBLY TEST.
........................................................
WP 0100-1
PTO EXCESSIVELY NOISY.
............................................................................................
WP 0067-1
PTO LEAKING LUBRICANT.
............................................................................................
WP 0069-1
PTO SHIFTS HARD.
.........................................................................................................
WP 0068-1
TM 9-2320-272-23-1
Index-3
Back to Top
