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Air leaks at fittings.
Air leaks at or inside
check valve.
Air leaks in air tank or
at air tank welds.
Air
leaks
between
head and valve plate.
Pressure reading on
the
regulated
pressure gauge drops
when an accessory is
used.
Air leak from safety
valve.
Restricted air intake.
Regulator knob has
continuous air leak.
Regulator will
not shut off air outlet.
Squealing sound.
PROBLEM
Tube
fittings
are
enough.
Check valve seat damaged.
Defective air tank.
Leaking seal.
It is normal for "some" pressure
drop to occur.
Possible defect in safety valve.
Dirty air filter.
Damaged regulator.
Damaged regulator.
Compressor pump has no oil.
Loose belt.
CAUSE
not
tight
Tighten fittings where air can be heard
escaping. Check fittings with soapy
water solution. DO NOT OVER
TIGHTEN.
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.
Air tank must be replaced.
Do not repair the leak.
WARNING: 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.
If there is an excessive amount of
pressure drop when the accessory is
used, adjust the regulator as instructed
in the
Operation section.
NOTE: Adjust the regulated pressure
under flow conditions
(while accessory is being used).
Operate safety valve manually by
pulling on ring. If valve still leaks, it
should be replaced.
Clean or replace.
Replace.
Replace.
See Oil-Checking paragraph in the
Maintenance section.
Loosen wingnut and then tighten
wingnut until it contacts the washer,
plus one turn.
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CORRECTION