Craftsman 919.165190 Owner's Manual page 21

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 CAUSE CORRECTION
Excessive tank
pressure - safety
valve pops off.
,, i
Air leaks at fit-
tings.
Air leaks at or
inside check
valve
Air leaks at
pressure switch
release valve.
Air leaks in air
tank or at air
tank welds,
Air leaks
between head
and valve plate.
Pressure switch does not
shut off motor when com-
)ressor reaches "cut-out"
3ressure.
Pressure switch "cut--out"
too high.
ii i.,
Tube fittings are not tight
enough.
Check valve seat damaged.
Defective pressure switch
release valve.
Defective air tank.
Leaking seal.
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
Overti_lhten.
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 to 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.
21- ENG 024588