TM 5-3810-289-12
NOTE.
IT IS IMPORTANT TO IDLE AN ENGINE 3 TO 5 MINUTES BEFORE
SHUTTING IT DOWN TO ALLOW LUBRICATING OIL AND WATER TO
CARRY HEAT AWAY FROM THE COMBUSTION CHAMBER, BEARINGS,
SHAFTS, ETC.
CAUTION.
LONG PERIODS OF IDLING ARE NOT GOOD FOR AN ENGINE
BECAUSE OPERATING TEMPERATURES DROP SO LOW THE FUEL
MAY NOT BURN COMPLETELY. THIS WILL CAUSE CARBON TO CLOG
THE INJECTOR SPRAY HOLES AND PISTON RINGS.
IF ENGINE COOLANT TEMPERATURE BECOMES TOO LOW, RAW FUEL
WILL WASH LUBRICATING OIL OFF CYLINDER WALLS AND DILUTE
CRANKCASE OIL SO ALL MOVING PARTS OF THE ENGINE WILL
SUFFER FROM POOR LUBRICATION.
STEP 1.
THE ENGINE CAN BE SHUT DOWN COMPLETELY BY PUSHING DOWN THE
IGNITION SWITCH.
ME 3810-289-15/2-10
Figure 2-39. Stopping the engine.
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