Craftsman 919.195411 owner manual Troubleshooting, Problem Cause Correction

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving parts, or compressed air sources. Personal injury may

occur. Before servicing: Unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and allow the air compressor to cool.

	PROBLEM	CAUSE	CORRECTION
	Excessive	Pressure switch does	Move On/Auto/Off lever to
	tank pressure	not shut off motor when	the "Off" position, if the air
	- safety valve	compressor reaches "cut-	compressor does
	pops off.	out" pressure.	not shut off, contact a
			Trained Service Technician.
		Pressure switch "cut-out"	Contact a Trained Service
		too high.	Technician.
	Air leaks at	Tube fittings are not tight	Tighten fittings where air
	fittings.	enough.	can be heard escaping.
			Check fittings with soapy
			water solution. DO NOT
			OVERTIGHTEN.
Air leaks at or		Check valve seat damaged.	A defective check valve
inside check			results in a constant air leak
valve			at the pressure release valve
			when there is pressure in the
			tank and the compressor
			is shut off. Replace check
			valve. Refer to the "To
			Replace or Clean Check
			Valve" in the "Service and
			Adjustments" section.
	Air leaks at	Defective pressure switch	Contact a Trained Service
	pressure switch	release valve.	Technician.
	release valve.
	(if equipped)
	Air leaks in air	Defective air tank.	Air tank must be replaced.
	tank or at air		Do not repair the leak.
	tank welds.		Risk of
			Bursting.
			Do not drill into, weld or
			otherwise modify air tank
			or it will weaken. The tank
			can rupture or explode.
	Air leaks	Leaking seal.	Contact a Trained Service
	between head		Technician.
	and valve plate.

A09713 24- ENG