Craftsman 919.167242 owner manual Service and Adjustments, To Replace or Clean Check Valve

SERVICE AND ADJUSTMENTS

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

Risk of Unsafe

Operation. Unit

cycles automatically when power is on. When servicing, you may be exposed to voltage sources, compressed air, or moving parts. Before servicing unit unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and 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.Set the On/Auto/Off lever to “OFF” and unplug unit.

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

Outlet Tube

Nut

Check

Valve

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.

Screwdriver

In open position nothing is visible.

In closed position disc is visible.

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.

17- ENG A08598