TM 5-4930-244-14
TABLE 4-1 TROUBLESHOOTING - CONT.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE STOPS DURING NORMAL OPERATION:
Step (1)
Check for clogged fuel filter.
Replace the filter.
Step (2)
Check for air or water in the fuel.
Drain fuel tank until fuel is clean and uncontaminated (para. 4-21). Refill fuel tank as required.
3. ENGINE MISFIRES DURING OPERATION:
Step (1)
Check for clogged fuel filter.
Replace the filter.
Step (2)
Check for air or water in the fuel system.
Drain and refill tank.
4. ENGINE OIL PRESSURE IS TOO LOW (BELOW 12 lb-ft) OR HIGH (ABOVE 60 Ib-ft) AT NORMAL OPERATING
CONDITIONS:
CAUTION
·
DO NOT operate engine when oil pressure is low. Senous damage could
occur to engine components.
Step (1)
Check engine oil for correct grade. See companion publication LO 5-4930-244-12.
Replace oil with correct grade.
Step (2)
Check oil pressure gauge for proper operation.
Repair or replace the gauge.
Step (3)
Check external fuel lines for leakage or restrictions.
Clear restrictions or replace lines.
4-6
