General Troubleshooting

Troubleshooting

WARNING

To reduce the risk of a fluid injection injury, follow the Pressure Relief Proce- dure on page 7 before checking or

servicing any of the system equipment and when- ever you are instructed to relieve pressure.

NOTE:

DCheck all possible remedies in the troubleshooting charts before disassembling the gun.

DSome improper patterns are caused by the improper balance between air and fluid.

Problem	Cause	Solution

Fluid leakage from back of fluid	Worn packings (47) or needle (5)	Replace packings or needle. See
needle	shaft	page 14.

Air leakage from front of gun	Air valve (52) not seating properly	Clean/service air valve. See page 14.

Fluid leakage from front of gun	Fluid needle (5) worn or damaged	Replace fluid needle. See page 14.

	Worn diffuser-seat (30) housing	Replace the diffuser-seat and gasket
		(33). The gasket must be replaced
		whenever the diffuser-seat is re-
		moved. See page 14.

Fluid in air passages	Fluid tip (28) seal leaking	Tighten or replace fluid tip.

	Leaking around diffuser-seat (30)	Replace the diffuser-seat gasket (33).
	housing	The gasket must be replaced when-
		ever the diffuser-seat is removed.
		See page 14.

Fluid inlet fitting (67) leaking

Replace the fluid fitting gasket (33). The gasket must be replaced when- ever the fluid fitting is removed. See page 15.

Problem	Cause	Solution

Fluttering or spitting spray	Insufficient fluid supply	Adjust fluid regulator or fill fluid supply
		tank.
	Air in paint supply line	Check, tighten siphon hose connec-
		tions, bleed air from paint line.

Irregular pattern	Fluid build-up or spray tip partially	Clean spray tip. See page 10.
	plugged
	On defective side of pattern, air horn	Clean air horn holes with solvent and
	holes are partially or totally plugged	soft brush. See page 10.

Pattern pushed to one side, same	Air horn holes partially or totally	Clean air horn holes with solvent and
side of air cap gets dirty	plugged	soft brush. See page 10.

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