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PROBLEM
Pressure reading
on the regulated
pressure gauge
(if equipped)
drops when an
accessory is
used.
CAUSE
It is normal for "some"
pressure drop to occur.
Air leak from
safety valve.
Compressor
is
not supplying
enough air
to operate
accessories,
Possible defect in safety
valve.
Prolonged excessive use
of air.
Compressor
is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Restricted air intake filter
CORRECTmON
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 ftow conditions
(while accessory is being
used).
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
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.
Remove and clean, or replace.
Tighten fittings.
Clean or replace air intake
filter. Do not operate the
air compressor
with the
filter removed. Refer to the
"Air Filter" paragraph in the
"Maintenance"
section.
Restricted air
Dirty air filter.
Clean or replace. See Air
intake.
Filter paragraph in the
"Maintenance"
section.
Regulator knob
Damaged regulator.
Have checked by a Trained
has continuous
Service Technician.
air leak.
Regulator will
Damaged regulator.
Have checked by a Trained
not shut off air
Service Technician.
outlet.
A09709
20-ENG
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