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 CAUSE CORRECTION
Excessive Pressure switch does not Move Auto/Off lever to the
tank pressure shut off motor when "Off" position, if the outfit
- safety valve compressor reaches does not shut off contact a
pops off. "cut-out" pressure. Trained Service Technician.
Pressure switch "cut-out" Contact a Trained Service
too high. Technician.
Air leaks at fit- Tube fittings are not tight Tighten fittings where air can
tings, enough, be heard escaping. Check fit-
tings with soapy water solu=
tion. Do Not Overtighten.
Check valve seat damaged.
Air leaks at or
inside check
valve.
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
Check Valve" in the Service
and Adjustment section.
Air leaks at Defective pressure switch Contact a Trained Service
pressure switch release valve. Technician.
release valve.
Defective air tank.Air leaks in air
tank or at air
tank welds.
Air leaks Leaking seal.
between head
and valve plate.
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.
19-ENG N004395
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