Porter-Cable C5512 Instruction Manual page 27

PROBLEM
Knocking Noise Possible defect in
Excessive
belt wear
Squealing
sound
CAUSE
safety valve.
Defective check valve.
Loose pulley.
Loose flywheel.
Compressor mounting
screws loose.
Loose belt.
Carbon build-
up in pump.
Belt too tight.
Loose belt.
Tight belt.
Loose pulley.
Pulley misalignment.
Compressor pump
has no oil.
Loose belt.
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
Remove and clean, or replace.
Tighten pulley set screw.
Tighten flywheel screw.
Tighten mounting screws.
Loosen wingnut and then
tighten wingnut until it contacts
the washer, plus one turn.
Have checked by a Trained
Service Technician.
Loosen wingnut and then
tighten wingnut until it contacts
the washer, plus one turn.
Loosen wingnut and then
tighten wingnut until it contacts
the washer, plus one turn.
Loosen wingnut and then
tighten wingnut until it contacts
the washer, plus one turn.
Have checked by a Trained
Service Technician.
See Motor Pulley/Flywheel
Alignment paragraph in the
Maintenance section.
See Oil-Checking paragraph
in the Maintenance section.
Loosen wingnut and then
tighten wingnut until it contacts
the washer, plus one turn.
27 - ENG
CORRECTION