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Craftsman 919.167221 Owner's Manual page 22

Permanently lubricated single stage portable air compressor

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PROBLEM
CORRECTION
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.
CAUSE
It is normal for "some"
_reesure drop to occur.
Knocking Noise.
Compressor
is
not supplying
enough air to
operate
accessodes.
Possible defect in safety
valve.
Defective check valve.
Prolonged excessive use of
Compressor
is not large
enough for air requirement.
Hole in hose,
Check valve restricted.
Air leaks.
Restdcteq air intake filter.
Clean or replace air intake
filte_ Do not operate the air
compressor
with the filter
removed, Refer to the "Air
Filter" paragraph in the
Maintenance"
section.
If there is an excessive
amount of pressure drop
when the accessory i$ used,
adjust the regulator following
the instructions
in the
"Description
of Operation"
paragraph in the "Operation
Section,
NOTE: Adjust the regulated
)reesure under flow
conditions
(while accessory
is bein_ used),
Operate safety valve
manually by pulling on ring,
If valve still leaks, it should
be replaced,
Remove and clean, or
replace.
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.
Regulator knob
Damaged regulator.
Replace.
has continuous
air leak,
[327304
22- ENG

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