Porter-Cable C7550 Instruction Manual page 23

PROBLEM
Motor will not Fuse blown, circuit
run (continued) breaker tripped.
Safety Valve Pressure switch, check
on pump valve, or pump could be
"pops" out in need of servicing.
Knocking Noise Possible defect in
safety valve.
Defective check valve.
Loose pulley.
Loose flywheel.
Compressor mounting
screws loose.
Loose belt.
Carbon build-up in pump. Have checked by a Trained
Belt to tight.
Excessive Loose belt.
belt wear
Tight belt.
Loose pulley.
Pulley misalignment.
Squealing Compressor pump
sound has no oil.
Loose belt.
CAUSE
1.
2.
3.
4.
Have checked by a Trained
Service Technician.
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.
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
Maintenance section.
See "Oil-Checking" paragraph
in the Maintenance section.
Check belt tension, see
"Adjusting Belt Tension" in
the Maintenance section.
23-ENG
CORRECTION
Check fuse box for blown fuse
and replace as necessary. Reset
circuit breaker. Do not use a fuse
or circuit breaker with higher
rating than that specified for your
particular branch circuit.
Check for proper fuse. You
should use a time delay fuse.
Check for low voltage conditions
and/or proper extension cord.
Disconnect the other electrical
appliances from circuit or
operate the compressor on its
own branch circuit.
1000003897