Delta A08590 instruction manual Service and Adjustments, To Replace or Clean Check Valve

SERVICE AND ADJUSTMENTS

Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources, compressed air or moving parts. Personal injuries can occur. Before performing any Maintenance or repair, unplug the compressor and bleed off all air pressure.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE PERFORMED BY TRAINED SERVICE TECHNICIAN.

Before servicing:

•Unplug or disconnect electrical supply to the air compressor.

•Bleed tank of pressure.

•Allow the air compressor to cool.

To Replace or Clean Check Valve

1.Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section.

2.Unplug unit.

3.Loosen the nut on the outlet tube and move the outlet tube to the side.

4.Unscrew the check valve (turn counterclockwise) using a socket wrench.

5.Make sure the valve disc moves freely inside the check valve and the spring holds the disc in the upper, closed position. The check valve may be cleaned with a solvent, such as paint and varnish remover.

Outlet Tube

Nut

Check Valve

6.Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).

7.Replace the outlet tube and tighten the nut.

8.Perform the Break-in Procedure. See "Break-in Procedure" in the Operation section.

A08590 14- ENG