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TM10-3930-660-34
2-6.
SYMPTOM INDEX.
Refer to Table 2-1 for troubleshooting procedures, and use the symptom index below to quickly locate a particular fault or
malfunction.
TROUBLESHOOTING SYMPTOM INDEX
MALFUNCTION
NO.
MALFUNCTION
PAGE
ENGINE
1
Engine will not crank........................................................................................................
2-6
2
Engine cranks but will not start ........................................................................................
2-6
3
Rough idle (irregular firing or engine shaking).................................................................
2-6
4
Lubricating oil pressure too low ......................................................................................
2-6
5
Lubricating oil pressure too high......................................................................................
2-7
6
Excessive vibration .........................................................................................................
2-7
POWERTRAIN
7
Low oil pressure from torque converter ...........................................................................
2-7
STEERING SYSTEM
8
Steering difficulty; vehicle pulls on straight froward driving or tends to go
straight when making turns ......................................................................................
2-7
9
Front differential is binding in turns..................................................................................
2-7
10
Excessive driveline noise.................................................................................................
2-8
11
Front differential has grinding noises...............................................................................
2-8
12
Sluggish re-engagement of front differential
clutch assemblies ............................................................................................................
2-9
13
Erratic operation of front differential;
premature wear or failure of parts ...................................................................................
2-9
14
Emergency steering pump will not hold pressure
in dis. line.........................................................................................................................
2-10
15
Emergency steering pump will not develop full
pressure or flow ...............................................................................................................
2-10
BRAKING SYSTEM
16
Brakes won’t release ......................................................................................................
2-11
17
Insufficient brakes............................................................................................................
2-11
18
Brakes will not release completely...................................................................................
2-11
19
Excessive braking............................................................................................................
2-11
20
Braking accumulator charging cycle repeats
frequently when brakes are not being used.............................................................
2-11
21
Brake accumulator charges frequently while brakes
are being held ..........................................................................................................
2-12
22
Brake accumulator starts to charge but doesn’t
reach high limit.........................................................................................................
2-12
23
Brake accumulator charging time too long ......................................................................
2-12
24
Brake accumulator fails to start charging ........................................................................
2-12
25
Very rapid cycling of brake valve .....................................................................................
2-13
2-4
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