TM 5-4310-387-14
Table 4-2. Unit Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. ENGINE RUNS HOT.
Step 1. Inspect cylinder shields and cooling fins for damage.
Clean shields and cooling fins.
Step 2. Inspect oil level for excessive amount of oil.
Drain off and recheck oil for correct level.
6. EXCESSIVE ENGINE OIL CONSUMPTION.
Step 1. Inspect oil for low viscosity.
Replace oil with oil of proper viscosity.
Step 2. Inspect for oil leaks.
Tighten fittings as needed.
7. COMPRESSOR NOISY.
Inspect drive belts for excessive wear.
Replace worn belts (para. 4-14).
8. COMPRESSOR RUNS HOT.
Step 1.
Inspect for air obstructions around flywheel fan.
Remove obstructions.
Step 2.
Inspect cooling fins for damage and debris.
Remove debris from cooling fins.
Step 3. Inspect intercooler and aftercooler tube fins for debris.
Remove debris from intercooler and aftercooler tube fins.
Step 4. Inspect inlet air cleaner for excessive dirt.
Service air cleaner (para. 4-26).
4-7
