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 443 of 987
TM 9-2320-285-24-1
2-36.
TROUBLESHOOTING SYMPTOM INDEX
Para/Malfunction
Page
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
2-423
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
No response to shift lever movement.
.........................................................
2-37/10
2-425
Slow or erratic shifting.
................................................................................
2-37/11
2-425
Rough shifting .
............................................................................................
2-37/12
2-426
Clutch slippage in all forward gears .
..........................................................
2-37/13
2-426
Excessive vibration .
.......................................................................
2-37/14
2-426
PROPELLER SHAFT
Excessive noise in propeller shaft .
.............................................................
2-38/1
2-427
Excessive vibration in propeller shaft .
........................................................
2-38/2
2-427
FRONT AXLE
Rapid or uneven tire wear .
.........................................................................
2-39/1
2-428
Front axle shimmys or vibrates .
.................................................................
2-39/2
2-428
Continuous wheel noise .
............................................................................
2-39/3
2-428
Hub leaks oil.
...............................................................................................
2-39/4
2-429
REAR AXLE
Lubricant leaking from differential breather .
...............................................
2-40/1
2-430
Continuous axle or wheel noise .
.................................................................
2-40/2
2-430
Differential carrier assembly overheating .
..................................................
2-40/3
2-430
Axle noise when driving .
.............................................................................
2-40/4
2-431
Hub leaks oil.
...............................................................................................
2-40/5
2-431
2-37.
TRANSMISSION TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
TRANSMISSION LEAKING FLUID
Step 1.
Check fluid level on transmission dipstick with transmission at
operating temperature and engine operating.
a.
If fluid level is above FULL mark, drain (para 2-41b) until
fluid level is between FULL and ADD marks.
b.
If level is not above FULL mark, go to step 2 below.
2-420
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