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TM 5-4210-233-14&P-1
SYMPTOM
PAGE NO.
ENGINE
WON'T CRANK . ..............................................................................................................
4-43
WON'T START ................................................................................................................
4-44
DIFFICULT TO START ...................................................................................................
4-44
ERRATIC OR STOPS ......................................................................................................
4-44
LOW POWER .................................................................................................................
4-45
LOW OIL PRESSURE......................................................................................................
4-46
FUMES FROM ROAD DRAFT TUBE ..............................................................................
4-46
EXHAUST BLACK ...........................................................................................................
4-47
HIGH OIL CONSUMPTION .............................................................................................
4-47
OVERHEATS ..................................................................................................................
4-48
AXLES
NOISY .............................................................................................................................
4-48
WHEELS WON'T DRIVE .................................................................................................
4-48
AXLE SHAFT LUBE LEAK ..............................................................................................
4-49
PINION SHAFT OIL LEAK ...............................................................................................
4-49
NO DIFFERENTIAL LOCK-UP .........................................................................................
4-50
FIREFIGHTING SYSTEM
PUMP FAILS TO PRIME OR LOSES PRIME ..................................................................
4-50
ENGINE AND PUMP SPEED TOO LOW AT FULL THROTTLE ......................................
4-53
ENGINE AND PUMP SPEED HIGHER THAN SPECIFIED FOR DESIRED PRESSURE .
4-53
AND VOLUME
ENGINE SPEED HIGHER THAN SPECIFIED FOR DESIRED PRESSURE AND VOLUME
4-53
INSUFFICIENT PRESSURE ...........................................................................................
4-54
PRESSURE NOT RELIEVED WHEN DISCHARGE VALVES ARE CLOSED ..................
4-54
PRESSURE WILL NOT RETURN TO ORIGINAL SETTING
AFTER DISCHARGE VALVES ARE RE-OPENED......................................................
4-54
"HUNTING" (FLUCTUATING PRESSURE) .....................................................................
4-55
SLOW RESPONSE .........................................................................................................
4-55
FIRE PUMP WILL NOT ENGAGE ...................................................................................
4-55
AIR OPERATED VALVE (FOR AERIAL DISCHARGE) FAILS TO OPEN OR CLOSE .....
4-56
VALVES LEAKING WATER/AGENT ...............................................................................
4-56
WATER/AGENT REMAINS IN PIPING AFTER DRAIN OPENED ....................................
4-56
DISCHARGE HOSE WON'T DE-PRESSURIZE ...............................................................
4-57
NO FOAM DISCHARGE AT ANY NOZZLE .....................................................................
4-57
EXCESS FOAM FROM NOZZLE ....................................................................................
4-57
FOAM ENTERING WATER TANK ...................................................................................
4-57
WATER ENTERING FOAM TANK ...................................................................................
4-57
HYDRAULIC SYSTEM
P.T.O. WILL NOT ENGAGE.............................................................................................
4-58
OUTRIGGERS WILL NOT OPERATE..............................................................................
4-58
AERIAL CONTROLS WILL NOT OPERATE ...................................................................
4-59
LADDER RAISES AND EXTENDS SLOWLY OR ERRATICALLY ...................................
4-60
ALL LADDER OPERATIONS ERRATIC OR SLOW .........................................................
4-60
LADDER DOES NOT OPERATE .....................................................................................
4-61
LADDER LOWERS AND RETRACTS SLOWLY .............................................................
4-62
LADDER WILL NOT LOWER OR RETRACT ..................................................................
4-62
4-20
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