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 valve.
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is used.
Compressor is not
supplying enough
air to operate
accessories.
Regulator knob has
continuous air leak.
Regulator will not
shut off air outlet.
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.
It is normal for "some"
pressure drop to occur.
Prolonged excessive
use of air.
Compressor is not
large enough for
air requirement.
Hole in hose.
Check valve restricted. Have checked by a Trained
Air leaks.
Restricted air
intake filter.
Damaged regulator.
Damaged regulator.
18 - ENG
CORRECTION
Move Auto/Off lever to the
"Off" position, if the outfit does
not shut off have checked by a
Trained Service Technician.
Have checked by a Trained
Service Technician.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water
solution. Do Not Overtighten.
Air tank must be replaced.
Do not repair the leak.
Risk bursting.
Do not drill into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Have checked by a Trained
Service Technician.
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
If there is an excessive amount
of pressure drop when the
accessory is used, adjust
the regulator following the
instructions in the Description
of Operation paragraph in
the Operation Section.
NOTE: Adjust the regulated
pressure under flow conditions
(while accessory is being used).
Decrease amount of air usage.
Check the accessory air
requirement. If it is higher than
the SCFM or pressure supplied
by your air compressor, you
need a larger compressor.
Check and replace if required.
Service Technician.
Tighten fittings.
Replace air intake filter.
CAUTION: Risk of unsafe
operation. Do not operate
without air intake filter.
Have checked by a Trained
Service Technician.
Have checked by a Trained
Service Technician.