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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
Excessive tank
pressure - safet
valve pops off.
Air leaks at
fittings.
Air leaks in air
tank or at air
tank welds.
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 air tank.
Air leaks
Leaking seal.
between head
and valve plate.
Air leak from
safety valve.
Knocking Noise.
Possible defect in safety
valve.
Possible defect in safety
valve.
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
Overti£1hten.
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.
19_ ENG
D28900
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