TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 35 of 987
TM 9-2320-285-24-1
12-6.
TROUBLESHOOTING SYMPTOM INDEX (CONT)
Para/Malfunction
Page
INSTRUMENT PANEL (cont)
OIL PRESSURE warning light or bell not
operating properly .
...........................................................................................
2-19/3
2-174
LOW AIR warning light and buzzer not
operating properly .
...................................................................................
2-19/4
2-175
LOW FUEL INDICATOR lamp does not light when
fuel tank is empty .
...................................................................................
2-19/5
2-176
LOW FUEL INDICATOR lamp lights when fuel
tank is full .
...............................................................................................
2-19/6
2-177
Voltmeter inoperative .
.....................................................................................
2-19/7
2-177
Ammeter inoperative .
......................................................................................
2-19/8
2-177
Dash lights and gage lights inoperative .
..........................................................
2-19/9
2-178
Engine stop switch doesn’t stop engine .
.........................................................
2-19/10
2-180
LIGHT SYSTEMS
Trailer lights inoperative (12-volt trailer) .
.........................................................
2-20/1
2-180
Trailer lights inoperative (24-volt trailer) .
.........................................................
2-20/2
2-182
Turn signal lights inoperative .
..........................................................................
2-20/3
2-184
Headlights inoperative .
....................................................................................
2-20/4
2-185
Marker lights and tail lights inoperative .
..........................................................
2-20/5
2-186
SENDING UNITS
WATER TEMP warning light and bell not
operating properly .
...................................................................................
2-21/1
2-188
OIL PRESSURE warning light and bell not
operating properly .
...................................................................................
2-21/2
2-188
LOW FUEL INDICATOR light and FUEL gage not
operating properly .
...................................................................................
2-21/3
2-189
Vehicle stop lights won’t operate .
....................................................................
2-21/4
2-189
Trailer stop lights won’t operate .
......................................................................
2-21/5
2-189
HORN SYSTEM
Electric horn does not sound .
..........................................................................
2-22/1
2-190
BATTERY SYSTEM
Batteries require frequent filling .
......................................................................
2-23/1
2-191
Batteries fail to maintain charge .
.....................................................................
2-23/2
2-192
TRANSMISSION
Transmission leaking fluid .
..............................................................................
2-37/1
2-420
Transmission fluid dirty .
...................................................................................
2-37/2
2-421
Transmission fluid smells burned .
...................................................................
2-37/3
2-422
Transmission fluid is foamy .
............................................................................
2-37/4
2-422
Transmission overheating .
..............................................................................
2-37/5,3-14/2
2-423,3-89
No neutral start or vehicle starts in other
than neutral .
............................................................................................
2-37/6
2-424
Linkage movement not definite; difficulty
finding correct gear position .
...................................................................
2-37/7
2-424
Vehicle creeps in neutral .
................................................................................
2-37/8
2-425
Transmission in wrong gear according to
position strip .
...........................................................................................
2-37/9
2-425
Transmission fluid is milky .
.............................................................................
3-14/1
3-90
Low lubrication pressure .
................................................................................
3-14/3
3-91
Low main pressure in all ranges .
.....................................................................
3-14/4
3-91
No response to shift lever movement .
.............................................................
2-37/10,3-14/5
2-425,3-92
All automatic shifts occur at too high speed .
...................................................
3-14/6
3-92
2-12
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