iiiiii
e
iii,
_Risk
of Unsafe Operation,
Unit cyctes automatically
when
power is on, When servicing,
you may be exposed
to
voBtage sources, compressed
air, or moving parts, Before servicing
unit
unplug or disconnect
electrical
supply to the air compressor,
bmeed tank of
pressure,
and allow the air compressor
to cool,
PROBLEM
Excessive tank
pressure - safety
valve pops off,
Air leaks at
fittings,
Air leaks in air
tank or at air
tank welds=
Air leaks
between head
and valve plate,
Air leak from
safety vane,
CAUSE
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,
Defective air tank,
Leaking seal
Possible defect in safety
valve,
Possible defect in safety
valve,
Knocking Noise=
CORRECTION
Move On/Auto/Off
lever to
the "Off" position,
if the
outfit 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
_hten,
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 expmode,
Contact a Trained Service
Technician,
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced=
Operate safety vane
manualIy by pulling on ring=
If valve still leaks, it should
be replaced=
19= ENG
A09706