Porter-Cable CPF23400P instruction manual Troubleshooting Guide, Over-Tighten

TROUBLESHOOTING GUIDE

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	CAUSE	CORRECTION
Excessive tank	Pressure switch does not shut	Move the pressure switch lever to
pressure - safety	off motor when compressor	the “OFF” position. If the unit
valve pops off.	reaches “cut-out” pressure.	doesn’t shut off, and the electrical
		contacts are welded together,
		replace the pressure switch.
		Contact an authorized service
	Pressure switch “cut-out” too	center to check and replace
	high.	pressure switch.
Air leaks at fittings.	Tube fittings are not tight	Tighten fittings where air can be
	enough.	heard escaping. Check fittings with
		soapy water solution. DO NOT
		OVER-TIGHTEN.
Air leaks at or inside	Malfunctioning or dirty check	A malfunctioning check valve
check valve.	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	Malfunctioning pressure switch	Remove and replace the release
switch release valve.	release valve.	valve.
	Malfunctioning 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 in air tank or	Damaged air tank.	DO NOT
at air tank welds.		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	Leaking o-ring.	Torque head screws to 8 ft.-lbs. If
head and valve		this does not stop leak, replace o-
plate.		ring.

13-ENG