Delta D25886 Service and Adjustments, To Replace or Clean Check Valve, Unplug outfit

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 outfit. Outlet Tube

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

side.	Nut
4. Unscrew the check valve (turn
	Check
counterclockwise) using a socket	Valve
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
6.	Apply sealant to the check valve	In open
		position
	threads. Reinstall the check valve
		nothing is
	(turn clockwise).	visible.
7.	Replace the outlet tube and tighten	In closed position
	the nut.	disc is visible.

8.Perform the Break-in Procedure. See “Break-in Procedure” in the Operation section.

15- ENG D25886