TM 5-4310-379-14
Table 3-2. Unit Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
LOW ENGINE OIL PRESSURE.
Step 1.
Crankcase oil level low.
Check oil level and add oil as needed.
Step 2.
Oil filter dirty.
Service oil filter (para. 3-37)
Step 3.
Oil pressure gage defective.
Replace oil pressure gage (para. 3-46).
5.
LOW COMPRESSOR OIL PRESSURE.
Step 1.
Check compressor oil level.
Add oil as needed.
Step 2.
Oil pressure regulating screw improperly adjusted.
Adjusted oil pressure regulating screw.
Step 3.
Oil pressure gage line leaking.
Check fittings and tighten if loose.
Step 4.
Oil pressure gage defective.
Replace a defective oil pressure gage (para. 3-46).
6.
LOW COMPRESSOR OUTPUT.
Step 1.
Check air intake filters.
Service air intake filters.
Step 2.
Drive belts.
Adjust drive belt tensions (para. 3-12 ).
3-11
