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