PROBLEM

 

CAUSE

CORRECTION

Knocking Noise.

 

Possible defect in safety

Operate safety valve manually

 

 

valve.

by pulling on ring. If valve still

 

 

 

 

leaks, it should be replaced.

 

 

Defective check valve.

Contact a Trained Service

 

 

 

 

Technician.

 

 

Compressor mounting

Tighten mounting screws,see

 

 

screws loose

Parts manual for torque

 

 

 

 

specifications.

 

 

Carbon build-up in pump

Have checked by a Trained

 

 

 

 

Service Technician.

 

 

 

 

 

Squealing

 

 

 

See Oil-Checking paragraph in

 

Compressor pump has no

sound.

 

oil.

 

the Maintenance section.

 

 

 

 

 

 

 

 

 

 

D29795

24- ENG

Page 24
Image 24
Porter-Cable C2555 instruction manual Problem Cause Correction