Porter-Cable CF6131 instruction manual Troubleshooting, Problem Cause Correction

TROUBLESHOOTING

Risk of Unsafe Operation. Unit cycles automatically when power is on. When servicing, you may be exposed to voltage sources, com- pressed air, or moving parts. Before servicing unit unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and allow the air compressor to cool.

PROBLEM	CAUSE	CORRECTION
Excessive tank pressure	Pressure switch does	Move On/Off lever to
- safety valve pops off.	not shut off motor when	the "Off" position, if
	compressor reaches	the outfit does not shut
	"cut-out" pressure.	off contact a Trained
		Service Technician.
	Pressure switch "cut-	Contact a Trained
	out" too high.	Service Technician.
Air leaks at fittings.	Tube fittings are not	Tighten fittings where air
	tight enough.	can be heard escaping.
		Check fittings with
		soapy water solution.
		Do Not Overtighten.
Air leaks in air tank	Defective air tank.	Air tank must be
or at air tank welds.		replaced. Do not
		repair the leak.
			Risk
		bursting. Do not drill
		into, weld or otherwise
		modify air tank or it will
		weaken. The tank can
		rupture or explode.
Air leaks between	Leaking seal.	Contact a Trained
head and valve plate.		Service Technician.
Air leak from	Possible defect in	Operate safety valve
safety valve.	safety valve.	manually by pulling on
		ring. If valve still leaks,
		it should be replaced.
Knocking Noise.	Possible defect in	Operate safety valve
	safety valve.	manually by pulling on
		ring. If valve still leaks,
		it should be replaced.

16 - ENG