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16- ENG
D28409
6. 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.
7. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
8. Replace the pressure relief tube
and tighten the nut.
9. Replace the pressure outlet tube
and tighten the nut.
10. Perform the Break-in Procedure.
See “Break-in Procedure” in the
Operation section.
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.
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
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 pressure
release tube and move the tube
to the side.
4. Loosen the nut on the outlet tube
and move the outlet tube to the
side.
5. Unscrew the check valve (turn
counterclockwise) using a socket
wrench.
Nut
Check
Valve
Pressure
Relief Tube
Nut
Outlet Tube