Troubleshooting; Service And Adjustments - Craftsman 919.184190 Owner's Manual

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Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or compressd 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.
Air leaks at
fittings.
Air leaks at or
inside check
valve
Air leaks at
pressure switch
release valve.
(if equipped)
Air leaks in air
tank or at air
tank welds.
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.
Check if valve seat
damaged.
Defective pressure switch
release valve.
Defective air tank.
Move On/Auto/Off lever to
the "OFF" position, if the air
compressor does
not shut off contact a Sears
or other Trained Service
Technician.
Contact a Sears or other
Trained Service Technician.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water
solution. Bubbles will
indicate a leak. 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 to "To Replace
or Clean Check Valve" in the
"Service and Adjustments"
section.
Contact a Sears or other
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
air tank can rupture or
explode and cause
possible serious injury.
Air leaks Leaking seal. Contact a Sears or other
between head Trained Service Technician.
and valve plate.
23- ENG D24917