TM 5-3810-306-34
SYMPTOM INDEX
Malfunction
Troubleshooting
Procedures
Page
ELECTRICAL SYSTEM
Alternator not charging or insufficient charging ............................................................................ 3-20
TRANSMISSION/TORQUE CONVERTER
Low transmission clutch pressure ................................................................................................
Low torque converter charging pump output................................................................................
Torque converter overheating ......................................................................................................
Noisy torque converter .................................................................................................................
Torque converter suction line is taking air....................................................................................
High torque converter pressure ....................................................................................................
High clutch pressure.....................................................................................................................
Oil in engine flywheel housing ......................................................................................................
Lack of power ...............................................................................................................................
BRAKE SYSTEM
Uneven braking or lining wear ...................................................................................................... 3-26
STEERING SYSTEM
Hard to steer left or right............................................................................................................... 3-26
HYDRAULIC SYSTEM
Slow or erratic operation of outrigger extension
cylinders ....................................................................................................................................
Sticking outrigger control valve ....................................................................................................
External leakage at control valve .................................................................................................
Outrigger control valve solenoid failure ........................................................................................
Outrigger vertical jack cylinder slow or erratic..............................................................................
Outrigger jack cylinder retracts under load...................................................................................
Jack cylinder extends without and system activation ...................................................................
Outrigger system operates, but selected outrigger will
not retract or extend ..................................................................................................................
Boom raises erratically .................................................................................................................
Boom lowers erratically ................................................................................................................
Boom raises slowly.......................................................................................................................
Boom lowers slowly ......................................................................................................................
Boom will not raise .......................................................................................................................
Boom will not lower.......................................................................................................................
Erratic operation of extending tele cylinder ..................................................................................
Erratic operation of retracting tele cylinder...................................................................................
Telescope cylinder will not extend................................................................................................
Telescope cylinder will not retract ................................................................................................
Hoist will not raise load.................................................................................................................
Hoist will not lower........................................................................................................................
3-2
