Service And Adjustments - Craftsman 919.724571 Owner's Manual

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 A TRAINED
SERVICE TECHNICIAN.
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.
Hose Clamp
D24749

SERVICE AND ADJUSTMENTS

Unit cycles
automatically when
Before servicing:
Check
Valve
3. Remove the hose by removing
the hose clamp.
NOTE: The hose clamp is not
reusable. You must purchase a new
hose clamp, see the Parts List
Manual or purchase a standard hose
clamp at a local hardware store.
4. Unscrew the check valve (turn
counter-clockwise) 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.
6. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
7. Replace hose and new hose
clamp.
8. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
16- ENG