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Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or
compressed air sources. Personal injury may occur. Prior to attempting
any repairs, unplug the air compressor and bleed off all air tank air
pressure.
PROBLEM
Pressure switch does not
Excessive tank
shut off motor when
pressure - safety
compressor reaches "cut-
valve pops off.
out" pressure.
Pressure switch "cut-out"
too high.
Air leaks at
Tube fittings are not tight
fittings.
enough.
Air leaks at
Defective pressure switch
pressure switch
release valve.
release valve.
(if equipped)
Defective air tank.
Air leaks in air
tank or at air
tank welds.
Air leaks
Leaking seal.
between head
and valve plate.
Air leak from
Possible defect in safety
safety valve.
valve.
Possible defect in safety
Knocking Noise.
valve.
TROUBLESHOOTING
CAUSE
17- 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.
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.
Operate safety valve manually
by pulling on ring. If valve
still leaks, it should be
replaced.
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
D27449
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