Craftsman 919.724701 Mode D'emploi page 21

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Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to
voltage sources, compressed air, or moving parts. Before servicing unit
unplug or disconnect electrical supply to the air compressor, bleed tank of
pressure, and allow the air compressor to cool.
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.
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
unit 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 Adjustment"
section.
Contact a Trained Service
Technician.
Air tank must be replaced.
Do not repair the leak.
Risk of
Bursting.
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.
D27610