Craftsman 919.19541 owner manual Troubleshooting, Problem Cause Correction

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving parts, or compressed air sources. Personal injury may occur. Before serv- icing: 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 switch does not	Move On/Auto/Off lever to
pressure - safe-	shut off motor when com-	the “OFF” position, if the air
ty valve pops	pressor reaches “cut-out”	compressor does
off.	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 can
fittings.	enough.	be heard escaping. Check
		fittings with soapy water
		solution. DO NOT OVER-
		TIGHTEN.
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.				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.

D24910 24- ENG