TM 9-2320-269-10
SYMPTOM INDEX - CONTINUED
Malfunction
Troubleshooting
Procedure Page
COOLING SYSTEM
Loss of coolant ......................................................................................................................
Overheating ...........................................................................................................................
CONTROLS - HYDRAULIC
Control handle will not stay in operating position...................................................................
Load will not hold...................................................................................................................
No high pressure ...................................................................................................................
No motion; slow, jerky action of hydraulic system.................................................................
Oil leaks at control valves......................................................................................................
Spring control handle does not return to neutral ...................................................................
DERRICK
Derrick cannot be rotated ......................................................................................................
Derrick leg cannot be lowered ...............................................................................................
Derrick leg cannot be raised..................................................................................................
Derrick leg hydraulic extension will not extend or
retract .................................................................................................................................
Derrick leg will not hold, drifts down ......................................................................................
Derrick moves slow, erratic ...................................................................................................
Derrick operation, spongy......................................................................................................
Derrick pump not operating properly .....................................................................................
Derrick pump very noisy ........................................................................................................
Outriggers will not hold in down position ...............................................................................
DRIVE LINE (POWER DIVIDER) LOCK-OUT SYSTEM
Will not engage (releases).....................................................................................................
Will not release (disengage), and indicator light
stays on ..............................................................................................................................
ELECTRICAL SYSTEM
One or more light systems will not work ................................................................................
Overcharged battery - ammeter shows high rate
of charge for long periods while operating vehicle .............................................................
Trailer brakes lock up ............................................................................................................
Trailer brakes not working .....................................................................................................
Undercharged battery - battery will not hold
charge ................................................................................................................................
24-V converter indicator light stays on - switch
is off....................................................................................................................................
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