Craftsman 919.724320 Manuel Du Propriétaire page 21

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Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or com-
pressed 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 com-
pressure - safety
pressor reaches "cut-out"
valve pops off.
pressure.
Pressure switch "cut-out"
too high.
Air leaks at fit-
Tube fittings are not tight
tings.
enough.
Check valve seat damaged.
Air leaks at or
inside check
valve
Defective pressure switch
Air leaks at
release valve.
pressure switch
release valve.
Defective air tank.
Air leaks in air
tank or at air
tank welds.
Air leaks
Leaking seal.
between head
and valve plate.
TROUBLESHOOTING
CAUSE
21- ENG
CORRECTION
Move On/Auto/Off lever to
the "OFF" position, if the
outfit does not shut off con-
tact 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 Adjustment"
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.
D24544

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