Porter-Cable CLFCP350 Instruction Manual page 23

PROBLEM
Knocking Noise. Possible defect in safety
Squealing
sound.
Air vent on
dipstick is
blocked
CAUSE
valve.
Defective check valve.
Compressor mounting
screws loose
Carbon build-up in pump
Compressor pump has no
oil.
Air vent clogged with
debris
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
Remove and clean, or replace.
Refer to the "To Replace or
Clean Check Valve" in the
"Service and Adjustment"
section.
Tighten mounting screws,see
Parts manual for torque
specifications.
Have checked by a Trained
Service Technician.
See Oil-Checking paragraph in
the Maintenace section.
Clean air vent or replace
dipstick
23- ENG
CORRECTION
A02212