TM 9-2330-381-14
5-7.
TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
APU - CONT
3.
ENGINE RUNS ROUGH
Step 1.
Check for leaking injection pump.
If injection pump is leaking, replace injection pump (para. 5-28).
Step 2.
Visually check for cracks and listen for compression leaks
around cylinder head or engine block.
If a leak is found, replace APU.
4.
WHITE OR BLUE EXHAUST SMOKE IS OBSERVED AFTER WARMUP
Visually check for cracks and listen for leaks around cylinder head.
If a leak is found, replace APU.
5.
INSUFFICIENT ENGINE OUTPUT "LOW POWER"
Check for loose or leaking injector pump.
If injector pump is loose or leaking, replace injector pump
6.
FUEL MIXED INTO LUBRICANT OIL
Check for leaking injector pump.
If pump is leaking, replace injector pump (para. 5-28).
HYDRAULIC SYSTEM
7.
PLATFORM SUSPENSION WILL NOT ADJUST OR ADJUSTMENTS ARE SLUGGISH
Check for leaking or damage hydraulic cylinder.
If cylinder is leaking, repair hydraulic cylinder (para. 5-25).
5-4
