Craftsman 919.167783 Manual Del Propietário página 21

_Risk of Unsafe Operation, Unit cycles automatically when
power ison, When servicing, you may be exposed to
voffage sources, compressed air, or moving parts, Before servMng unit
unp{ug or disconnect emectdcamsupply to the air compressor, Meed tank
of pressure, and allow the air compressor to cool
PROBLEM
Excessive tank
pressure - safety
valve pops off.
Air Ieaks at
fittings.
Air leaks at or
inside check
valve.
CAUSE
Pressure switch does not
shut off motor when
compressor reaches
"cut-out" pressure.
Air leaks in air
tank or at air
tank welds.
Pressure switch "cut-out"
too high.
Tube fittings are not tight
enough.
Check valve seat damaged.
CORRECTION
Move On/Auto/Off lever to
the "Off" position, if the
outfit does not shut off
contact a Trained Service
Technician.
Air Ieaks at Defective pressure switch
pressure switch release valve.
release valve.
Defective air tank. Air tank must be replaced.
Do not repair the leak.
Leaking sea!.
Air leaks
between head
and valve plate.
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. Reptace check
valve. Refer to the "To
RepIace or Clean Check
VaNe" in the "Service and
Adjustment" section.
Contact a Trained Service
Technician.
Do not drill into, weBd or
otherwise modify air tank
or it will weaken, The tank
can rupture or explode,
Contact a Trained Service
Technician.
21-ENG A09710