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15- ENG
A10244
SERVICE AND ADJUSTMENTS
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. Using an adjustable wrench loosen outlet
tube nut at air tank and pump. Carefully
move outlet tube up away from check
valve.
4. Using an adjustable wrench loosen
pressure relief tube nut at air tank and
pressure switch. Carefully move pressure
relief tube away from check valve.
5. Unscrew the check valve (turn
counterclockwise) using a 7/8" open
end wrench. Note the orientation for
reassembly.
6. Using a screwdriver, carefully push
the valve disc up and down. NOTE:
The valve disc should move freely
up and down on a spring which
holds the valve disc in the closed
position, if not the check valve
needs to be cleaned or replaced.
7. Clean or replace the check valve.
A solvent, such as paint or varnish
remover can be used to clean the
check valve.
8. Apply sealant to the check valve threads. Reinstall the check valve (turn
clockwise).
9. Replace the pressure release tube. Tighten nuts.
10. Replace the outlet tube and tighten nuts.
11. Replace shrouds.
12. Perform the Break-in Procedure. See "Break-in Procedure" in the
"Operation" section.
Outlet Tube
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
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.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE TECHNICIAN.
Nut
Check
Valve
Nut
Pressure
Relief
Tube