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TROUBLESHOOTING GUIDE
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR SOURCES.
PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND BLEED
OFF ALL TANK AIR PRESSURE.
PROBLEM
Excessive tank pressure - safety valve
pops off.
Air leaks at fittings.
Air leaks at or inside check valve.
Air leaks at pressure switch
release valve.
Air leaks in air tank or at air tank welds.
Air leak from safety valve.
CAUSE
Pressure switch does not shut off motor
when compressor reaches “cut-out”
pressure.
Pressure switch “cut-out” too high.
Tube fittings are not tight enough.
Defective or dirty check valve.
Defective pressure switch release valve.
Defective check valve.
Defective air tank.
Possible defect in safety valve
CORRECTION
Move the pressure switch lever to the
“OFF” position. If the outfit doesn’t shut
off, and the electrical contacts are
welded together, replace the pressure
switch.
If the contacts are good, check to see if
the pin in the bottom of the pressure
release valve is stuck. If it does not move
freely, replace the valve.
Return the outfit to an Authorized War-
ranty Service Center to check, remove
or replace switch.
Tighten fittings where air can be heard
escaping. Check fittings with soapy wa-
ter solution. DO NOT OVER-TIGHTEN.
A defective check valve results in a
constant air leak at the pressure release
valve when there is pressure in the tank
and the compressor is shut off. Remove
and clean or replace check valve. DO
NOT OVER-TIGHTEN.
Remove and replace the release valve.
A defective check valve results in a
constant air leak at the pressure release
valve when there is pressure in the tank
and the compressor is shut off. Remove
and clean or replace check valve. DO
NOT OVER-TIGHTEN.
Air tank must be replaced. Do not repair
the leak.
DO NOT DRILL INTO, WELD OR
OTHERWISE MODIFY AIR TANK
OR IT WILL WEAKEN. THE TANK
CAN RUPTURE OR EXPLODE.
Operate safety valve manually by pull-
ing on ring. If valve still leaks, it must be
replaced.
STORAGE OF COMPRESSOR
OUTFIT
1. Review the "Maintenance" section on the preceding
pages and perform scheduled maintenance as
necessary. Drain the water from the air tank.
2. Set the ON/AUTO-OFF switch to the "OFF" position, and
unplug the unit.
3. Remove any air tool or accessory.
4. Protect the electrical cord and air hose from damage
(such as being stepped on or run over). Wind them loosely
around the outfit handle.
5. Store the compressor in a clean and dry location.