Table 2-4. UNIT AIR COMPRESSOR TROUBLESHOOTING PROCEDURES
TEST OR INSPECTION
AIR COMPRESSOR FAILS TO START - continued.
(2) 35 to 35
(3) 36 to 36
If no continuity exists, repair wiring, per FO-6 Air Compressor Wiring Diagram.
If continuity exists, replace air compressor. Refer to paragraph 2-34, Air Compressor.
AIR COMPRESSOR FAILS TO DELIVER AIR PRESSURE.
Check air pressure.
Remove electrical power from generator per TM 5-6115-585-12.
Check for air pressure leaks on all air hose lines, and tighten air hoses as required.
On air tank, open drain cock until pressure on gage is 0 psi. Close drain cock.
Remove air hose from air compressor.
High voltage is present on this equipment. Do not
perform maintenance with power on. Death or
serious injury may result.
Apply electrical power, refer to generator TM 5-6115-585-12.
If air pressure exists at air hose, remove electrical power and connect air hose.
If no air pressure exists at air hose, replace air compressor. Refer to paragraph 2-34.
AIR PRESSURE BELOW 90 PSI OR ABOVE 100 PSI.
Check for improperly adjusted pressure switch, on at or below 90 psi; off at 100 psi or higher.
If pressure is incorrect, adjust pressure switch. Refer to paragraph 2-34, Air Compressor.