TM 5-4320-302-14
Table 5-1. Direct Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. ENGINE CONSUMES EXCESSIVE LUBE OIL (MAY PRODUCE BLUE SMOKE)
Step 1. Check for leaking
bottom cover.
If bottom cover
is leaking, remove
from crankcase
and reinstall
(para 5-22).
If bottom cover
continues to
leak, replace it
(para 5-22).
Step 2. Check for lube oil cooler core leaks. Clean lube oil cooler and check for core
leaks (para 5-14).
If leakage is evident, replace lube oil cooler (para 5-14).
6. PUMP DOES NOT DISCHARGE OR HAS LOW DISCHARGE PRESSURE
Step 1. Check for broken impeller. Disassemble pump (para 5-4). Inspect impeller.
Replace impeller if necessary.
7. PUMP MAKES EXCESSIVE NOISE
Step 1. Check for foreign matter in pump. Disassemble pump (para 5-4). Inspect for
foreign matter.
Remove foreign matter.
5-5