Craftsman 919.167461 Manual Del Usuario página 20

PROBLEM
Pressure reading
on the regulated
pressure gauge
(if equipped)
drops when an
accessory is
used.
Air leak from
safety valve.
Compressor is
not supplying
enough air to
operate acces-
sories.
Restricted air
intake.
Regulator knob
has continuous
air leak.
Regulator will
not shut off air
outlet.
D28071
CAUSE
It is normal for "some"
pressure drop to occur.
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
Dirty air filter.
Damaged regulator.
Damaged regulator.
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.
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 fil-
ter. Do not operate the air
compressor with the filter
removed. Refer to the "Air
Filter" paragraph in the
"Maintenance " section.
Clean or replace. See Air Filter
paragraph in the Maintenance
section.
Have checked by a Trained
Service Technician.
Have checked by a Trained
Service Technician.
20- ENG
CORRECTION