Porter-Cable CPF6025VP User Manual download pdf (Page 13)

13-ENG

CAUSE

PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES,

MOVING PARTS OR COMPRESSED AIR SOURCES. PERSONAL INJURY

MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE AIR

COMPRESSOR AND BLEED OFF ALL AIR TANK AIR PRESSURE.

PROBLEM

CORRECTION

TROUBLESHOOTING GUIDE

Excessive tank

pressure - safety

valve pops off.

Pressure switch does not shut

off motor when compressor

reaches “cut-out” pressure.

Pressure switch “cut-out” too

high.

Move the pressure switch lever to

the “OFF” position. If the unit

doesn’t shut off, and the electrical

contacts are welded together,

replace the pressure switch.

Contact an authorized service

center to check and replace

pressure switch.

Air leaks at fittings. Tube fittings are not tight

enough.

Tighten fittings where air can be

heard escaping. Check fittings with

soapy water solution. DO NOT

OVER-TIGHTEN.

Air leaks at or inside

check valve.

Malfunctioning or dirty check

valve.

A malfunctioning check valve

results in a constant air leak at the

pressure release valve when

pressure is in the tank and the

compressor is shut off. Drain tank

then remove and clean or replace

check valve. DO NOT OVER-

TIGHTEN.

Air leaks at pressure

switch release valve.

Malfunctioning pressure switch

release valve.

Malfunctioning check valve.

Remove and replace the release

valve.

A malfunctioning check valve

results in a constant air leak at the

pressure release valve when

pressure is in the tank and the

compressor is shut off. Drain tank

then remove and clean or replace

check valve. DO NOT OVER-

TIGHTEN.

Damaged air tank.

DO NOT

DRILL INTO, WELD OR

OTHERWISE MODIFY AIR

TANK OR IT WILL

WEAKEN. THE TANK CAN

RUPTURE OR EXPLODE.

TANK MUST BE RE-

PLACED.

Air leaks between

head and valve

plate.

Leaking o-ring. Torque head screws to 8 ft.-lbs. If

this does not stop leak, replace o-

ring.

Air leaks in air tank or

at air tank welds.

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Porter-Cable CPF6025VP User Manual Page 13

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