TM 5-4310-386-14
Table 5-1. Direct Support Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8. CONDENSATE AUTOMATIC DRAIN NOT DRAINING (COLD WEATHER).
Interfilter heater block inoperative.
Replace element if necessary (para. 5-15).
9. NO COMPRESSOR OIL PRESSURE.
Step 1. Check oil supply lines.
Tighten or replace oil supply lines as needed (para. 5-11).
Step 2. Check compressor oil pump.
Replace compressor oil pump (para. 5-11).
Step 3. Check oil pressure regulator.
Adjust or replace oil pressure regulator (para. 5-12).
10. COMPRESSOR OUTPUT INSUFFICIENT.
Step 1. Check engine rpm.
Adjust as required.
Step 2. Check interfilter safety valves.
Replace interfilter safety valves if damaged (para. 5-16).
Step 3. Check interfilter drain valves.
Replace or repair interfilter drain valves (para. 5-17).
Step 4. Check first stage safety valve.
Replace first stage safety valve if damaged (para. 5-14).
Step 5. Check fourth stage safety valve.
Replace fourth stage safety valve if damaged (para. 5-24).
5-5
