TM 5-4310-354-14
Table 4-2. Organizational Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR COMPRESSOR - continued
16. AIR COMPRESSOR OVERHEATING - continued.
Step 4. Thermal bypass valve is defective.
Notify Direct Support or Genera l Support Maintenance.
Step 5. Any other cause.
Notify Direct Support or General Support Maintenance.
17. COMPRESSOR IS NOISY.
Step 1. Check level of oil in separator tank.
Add proper grade of oil as necessary. Refer to LO 5-4310-354-12, figure 3-1.
Step 2. Check operation of air pressure regulator by observing load and unload pressures.
2
2
Normal load pressure is 80 psi (5.6 KG/CM ) and unload pressure is 105 psi (7.4 KG/CM ). If
unit is not operating in this range, the air pressure regulator requires adjustment or is
defective. Notify Direct Support or General Support Maintenance.
Step 3. Any other cause.
Notify Direct Support or General Support Maintenance.
18. COMPRESSOR NOT OPERATING TO FULL CAPACITY OR PRESSURE.
Step 1. Check air cleaner restriction indicator for indication of needed element service.
Service the compressor air cleaner (figure 4-6).
Step 2. Check air lines, hoses, and fittings for loose connections, damaged hoses, and fittings.
Refer to para 4-33 for air lines, hoses, and fittings maintenance.
Step 3. Check air pressure regulator for leakage and proper adjustment.
Notify Direct Support or General Support Maintenance.
Step 4. Check speed control linkage for proper setting.
Adjust speed control linkage (para 4-74).
4-20
