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PROBLEM CORRECTION
Pressure read-
ing on the regu-
lated pressure
gauge drops
when an acces-
sory is used.
CAUSE
It is normal for "some"
aressure drop to occu£
Knocking Noise. Possible defect in safety
valve.
Defective check valve.
Compressor is Prolonged excessive use of
not supplying air.
enough air
to operate
accessories. Compressor is not large Check the accessory air
enough for air requirement, requirement. If it is higher
than the SCFM or pressure
supplied by your air
compressor, you need a
larger compressor.
Hole in hose. Check and replace if required.
Check valve restricted. Replace check valve.
Air leaks. Tighten fittings.
Restricted air intake filter. Clean or replace air intake
filter. Do not operate the
air compressor with the fil-
ter removed. Refer to the
"Air Filter" paragraph in the
Maintenance section.
Regulator knob Damaged regulator. Replace.
has continuous
air leak.
Regulator will Damaged regulator. Replace.
not shut off air
outlet.
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).
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
Replace check valve.
Decrease amount of air usage.
1000002923 20-ENG
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