Download V120101-452 - Class Leading Air Compressors and Air Compressor

Check Valve
Operation Manual
Check valve
The check valve closes when the compressor stops operating, preventing air from
flowing out of the tank through the pressure release valve. After the compressor stop
operating, if air continues to escape through the release valve, it is an indication that the
check valve is leaking. This can be corrected by removing check valve and cleaning disc
and seat. If check valve is worn badly, replace same.
WARNING
Before removing check valve be sure all air is drained out of tank and power is
disconnected. Failure to do so may result in injury or equipment damage.