Porter-Cable CPF23400P Instruction Manual page 15

PROBLEM CAUSE
Air leak from safety Possible defect in safety valve.
valve.
Knocking Noise. Defective check valve.
Compressor is not Prolonged excessive use of air.
supplying enough air
Compressor is not large
to operate
enough for air requirement.
accessories.
Restricted air intake filter.
Hole in hose.
Check valve restricted.
Air leaks.
Regulator knob has Pressure release valve on
continuous air leak. pressure switch has not
Regulator will not unloaded head pressure.
shut off air outlet.
Damaged regulator.
CORRECTION
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.
Clean or replace air intake filter. Do
not operate the air compressor with
the filter removed. See page 11.
Check and replace if required.
Remove and clean, or replace.
Tighten fittings. (See Air Leaks
Section of Troubleshooting Guide.)
Replace regulator.
15-ENG