Graco 312001R important safety instructions ProX7 and ProX9 Insert screw

Troubleshooting

Problem	Cause	Solution
Pump does not prime.	Prime/Spray Valve is in SPRAY	Turn Prime/Spray Valve to PRIME
	position.	position (pointing down).
	Inlet screen is clogged or suction	Clean debris off inlet screen and
	tube is not immersed.	make sure suction tube is
		immersed in fluid.
	Pump was not primed with	Remove suction tube from paint.
	flushing fluid.	Prime pump with water or
		solvent-based flushing fluid, page
		11.
	Inlet valve check ball is stuck.	Remove suction tube and place a
		pencil into the inlet section to dis-
		lodge the ball, allowing pump to
		prime properly. OR Power Flush
		sprayer, page 19.
		AutoPrime may need replace-
		ment. Turn power switch ON and
		listen for “tap” in pump. If you do
		not hear “tap”, AutoPrime is dam-
		aged. Take sprayer to Graco/MAG-
		NUM authorized service center.
	Inlet valve check ball or seat is	Remove inlet fitting. Clean or
	dirty	replace ball and seat.
	Outlet valve check ball is stuck.	ProX7 and ProX9: Insert screw
		driver in slot and remove
		Easy-Access™door, page 8.
		Unscrew outlet valve with a 3/4 in.
		socket. Remove and clean
		assembly.
		X5 and X7: Remove outlet fitting
		and clean outlet check ball.
	Suction tube is leaking.	Tighten suction tube connection.
		Inspect for cracks or vacuum
		leaks.
	Pump does not prime with fluid.	Remove suction tube from paint.
		Prime pump with water or sol-
		vent-based flushing fluid.
	Fluids are viscous or sticky.	Some fluids may prime faster if
		the Power Switch is momentarily
		turned off so the pump can slow
		and stop. Repeat several times if
		necessary.

26 312001R