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Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or
compressd air sources. Personal injury may occur. Prior to attempting any
repairs, unplug the air compressor and bleed off all air tank air pressure.
PROBLEM
Excessive tank
Pressure switch does not
pressure -
shut off motor when
safety valve
compressor reaches "cut-
pops off.
out" pressure.
Pressure switch "cut-out"
too high.
Air leaks at
Tube fittings are not tight
fittings.
enough.
Air leaks at or
Check valve seat damaged.
inside check
valve.
Air leaks at
Defective pressure switch
pressure switch
release valve.
release valve.
(if equipped)
Air leaks in air
Defective air tank.
tank or at air
tank welds.
Leaking seal.
Air leaks
between head
and valve plate.
D24225
TROUBLESHOOTING
CAUSE
22- ENG
CORRECTION
Move On/Auto/Off lever to
the "OFF" position, if the
outfit does not shut off
contact a Trained Service
Technician.
Contact a Trained Service
Technician.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water
solution. DO NOT
OVERTIGHTEN.
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. Replace check
valve. Refer the "To Replace
or Clean Check Valve" in the
"Service and Adjustments"
section.
Contact a Trained Service
Technician.
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.
Contact a Trained Service
Technician.
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