TM 5-4310-369-14
Table 4-2. Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
7.
AIR LEAKAGE.
Step 1. Check for leaking interstage relief valve.
Replace a leaking valve.
a. Removal.
(1) Shut down compressor unit.
(2) Remove the interstage safety valve from the compressor high pressure cylinder head by turning
the valve counterclockwise.
b. Cleaning and inspection.
Drycleaning solvent, P-D-680, used to clean parts is potentially dangerous to personnel and property.
Avoid repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flash point of
solvent is 100F (38C).
Wash the interstage safety valve with cleaning solvent, item 5, App. D. Inspect for cracks in the body
of the valve. Inspect the threads for wear or damage. Replace a defective interstage safety valve.
NOTE
This valve is preset at 75 psi (5.3 kg/sq cm). A defective valve should be replaced rather than repaired.
c. Installation.
(1) Install the interstage safety valve in the compressor cylinder head by turning the valve clockwise.
(2) Restart unit and check for air leaks.
Step 2. Check if air receiver tank drain valve is loose.
The air tank drain valve is underneath the tank and if found to be loose, tighten. If it is found to be defec-
tive in any way, replace.
Step 3. Check if air hose or fittings are leaking.
Tighten loose fittings and replace leaking air hose.
Section VI. MAINTENANCE OF FUEL SYSTEM
fuel tank into a suitable container.
Fuel Line Assembly
a. Removal.
(2) Disconnect the fuel line (6) from elbow (11)
and elbow (9) and remove.
