Porter-Cable PSH3 Troubleshooting, Defective Pattern Likely Cause Suggested Remedy

TROUBLESHOOTING

NOTICE: See parts list to identify parts referred to in these Troubleshooting steps.

	Defective Pattern	Likely Cause	Suggested Remedy
A.		Dried material is clog-	Soak side-ports in thinner to
		ging side-port “A” and	clean clog. DO NOT poke any
		causing side-port “B”	opening with hard objects.
		to blow spray towards
		the clogged side
B.		Dried material at fluid	Remove air nozzle. Wipe off fluid
		nozzle “C” restricts air	tip using a cloth soaked in thinner
		flow	or by soft brush
		Loose air nozzle	Fasten nozzle securely
		Air pressure set too	Reduce air pressure
		high
C.	Spitting, irregular	Fluid nozzle cracked or worn	Tighten or replace
	or fluttering spray	Leak at thread of fluid nozzle	Tighten fluid nozzle
		Leak at fluid needle	Tighten compression nut
			assembly or replace needle
			packing
		Needle packing worn out	Replace packing
		Insufficient fluid in cup	Fill cup with fluid
		Vent hole in container cover	Clean Out
		clogged
D.	Split spray pattern	Air pressure too high	Turn pattern control knob
			clockwise to decrease fan width.
			Turn fluid needle adjusting nut
			counterclockwise to increase fluid
			flow
E.	Unatomized or	Material too heavy	Thin material or use larger orifice
	spattered spray		fluid nozzle set
		Insufficient air pressure	Increase pressure to within limit
		Fluid pressure too high	Reduce pressure
		Dried material on tip of fluid noz-	Clean
		zle or air jets of air cap
F. Inadequate air deliv-		Air needle partially closed	Open control knob
	ery	Dried material in air jets or air cap	Clean
		Obstruction in air line
G.	Excessive fog	Air pressure to high for viscosity	Remove obstruction
		of fluid	Reduce air pressure and/or open
			fluid control knob
H.	Material leaking	Loose cup or foreign substances	Tighten and clean or replace it
	from fluid inlet of	on/between cup thread and fluid
	cup.	inlet
I.	Material leaking	Worn fluid needle	Replace
	from nozzle when	Dried material in tip of nozzle	Clean
	trigger is released	Loose packing nut	Tighten needle packing nut by
			turning counterclockwise

D25800 6- ENG