TM 9-4310-397-14
SECTION V TROUBLESHOOTING
4-8. GENERAL.
The branching logic tree diagrams list common malfunctions that you may find with your equipment. Follow the
instructions given in the order they appear. The branching logic tree diagrams cannot list all the malfunctions that may
occur, all the steps needed to find the fault, or all the corrective actions needed to correct the fault. If the equipment
malfunction is not listed or corrective actions taken do not correct the fault, notify your supervisor.
MALFUNCTION INDEX
MALFUNCTION
TROUBLE SHOOTING
PROCEDURE
(PARA)
Engine Will Not Crank When Start Switch Is Pulled ......................................................4-9
Engine Cranks But Will Not Start ..................................................................................4-10
Engine Stops During Operation ....................................................................................4-11
Engine Does Not Develop Full Power ...........................................................................4-12
Loss Of Engine Oil Pressure .........................................................................................4-13
Engine Overheats .........................................................................................................4-14
Battery Discharging/Alternator Not Charging ................................................................4-15
Engine Coolant Temperature Too Low .........................................................................4-16
Engine Knocks .............................................................................................................4-17
Engine Returns To Idle But Compressor Does Not Unload ...........................................4-18
Engine Using Too Much Fuel ........................................................................................4-19
Engine Using Too Much Oil...........................................................................................4-20
Compressor Overheats ................................................................................................4-21
Compressor Operation Is Noisy.....................................................................................4-22
Compressor Not Operating To Full Capacity Or Pressure .............................................4-23
Compressor Fails To Load Or Unload ..........................................................................4-24
Compressor Unloads But Engine Does Not Idle.............................................................4-25
Excessive Compressor Oil Consumption ......................................................................4-26
Condensate And/Or Emulsion In Oil Separator Tank ....................................................4-27
Engine Stalls At Idle .....................................................................................................4-28
Excessive Oil In Air Discharge .....................................................................................4-29
4-41
