PROBLEM

CAUSE

CORRECTION

Compressor is

Prolonged excessive use of

not supplying

air.

enough air to

Compressor is not large

operate acces-

enough for air requirement.

sories.

 

 

Hole in hose.

 

Unloader valve restricted.

 

Air leaks.

 

Restricted air intake filter

Decrease amount of air usage.

Check the accessory air requirement. If it is higher than the SCFM or pressure supplied by your air compressor, you need a larger compressor.

Check and replace if required.

Remove and clean, or replace.

Tighten fittings.

Clean or replace air intake fil- ter. Do not operate the air compressor with the filter removed. Refer to the “Air Filter” paragraph in the “Maintenance “ section.

 

Loose belt.

Check belt tension, see

 

 

Adjusting Belt Tension in the

 

 

Maintenance section.

 

 

 

Restricted air

Dirty air filter.

Clean or replace. See Air Filter

intake.

 

paragraph in the Maintenance

 

 

section.

Excessive

Engine or pump mounting

vibration.

screws are loose.

 

Stiffener bracket screw is

 

loose.

Excessive vibration

could weaken the air tank and cause it to rupture or explode. Stiffener bar nuts and mounting screws must be kept tightened. Never operate the unit unless equipped with the stiffener bar and rubber feet.

23-ENG

D26998

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Porter-Cable CPL55GH8W instruction manual Compressor is