Porter-Cable C7510 Instruction Manual page 26

PROBLEM
Knocking Noise. Possible defect in safety
Excessive belt
wear
Squealing
sound.
D28176
CAUSE
valve.
Defective check valve.
Loose pulley
Loose flywheel
Compressor mounting
screws loose
Loose belt
Carbon build-up in pump
Belt to 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,see
Parts manual for torque
specifications.
Tighten flywheel screw,see
Parts manual for torque
specifications.
Tighten mounting screws,see
Parts manual for torque
specifications.
Check belt tension, see
Adjusting Belt Tension in the
Maintenance section
Have checked by a Trained
Service Technician.
Check belt tension, see
Adjusting Belt Tension in the
Maintenance section
Check belt tension, see
Adjusting Belt Tension in the
Maintenance section
Check belt tension, see
Adjusting Belt Tension in the
Maintenance section
Have checked by a Trained
Service Technician.
See Motor Pulley/Flywheel
Alignment paragraph in the
Maintenace section.
See Oil-Checking paragraph in
the Maintenace section.
Check belt tension, see
Adjusting Belt Tension in the
Maintenance section
26- ENG
CORRECTION