Craftsman 919.722020 owner manual Troubleshooting, Overtighten

TROUBLESHOOTING

Risk of Unsafe Operation. 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	Move Off/Auto switch to the
pressure - safety	shut off motor when	"OFF" position, if the unit
valve pops off.	compressor reaches "cut-	does not shut off contact a
	out" pressure.	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
		any exposed fittings with
		soapy water solution. Do Not
		Overtighten.
		Apply sealant tape to threads
		of exposed fittings.
Air leak from	Possible defect in safety	Operate safety valve
safety valve.	valve.	manually by pulling on ring.
		If valve still leaks, Contact a
		Trained Service Technician.
Knocking Noise.	Possible defect in safety	Operate safety valve
	valve.	manually by pulling on ring.
		If valve still leaks, Contact a
		Trained Service Technician.
Pressure reading	It is normal for "some"	If there is an excessive
on the regulated	pressure drop to occur.	amount of pressure drop
pressure gauge		when the accessory is used,
drops when an		adjust the regulator following
accessory is		the instructions in the
used.		"Description of Operation"
		paragraph in the "Operation
		Section.
		NOTE: Adjust the regulated
		pressure under flow
		conditions (while accessory
		is being used).

D29495 18- ENG