Graco 312001R important safety instructions See Thermal Overload

		Troubleshooting
Problem	Cause	Solution
Fan pattern varies dramatically	Pressure control switch is worn	Take sprayer to Graco/MAGNUM
while spraying.	and causing excessive pressure	authorized service center.
OR	variation.
Sprayer does not turn on promptly
when resuming spraying.
Cannot trigger spray gun.	Spray gun trigger lock is locked.	Rotate trigger safety lever to
		unlock trigger lock, page 10.
Paint is coming out of pressure	Pressure control switch is worn.	Take sprayer to Graco/MAGNUM
control switch.		authorized service center.
Prime/Spray valve actuates	System is over pressurizing.	Take sprayer to Graco/MAGNUM
automatically relieving pressure		authorized service center.
through prime tube.
Paint leaks down outside of pump.	Pump packings are worn.	Replace pump packings.
Motor is hot and runs intermit-	Vent holes in enclosure are	Keep vent holes clear of
tently. Motor automatically shuts	plugged or sprayer is covered.	obstructions and overspray and
off due to excessive heat. Dam-		keep sprayer open to air.
age can occur if cause is not cor-
	Extension cord is too long or not a	Replace extension cord. Read
rected.	heavy enough gauge.	Grounding and Electrical
See Thermal Overload, page 7.		Requirements, page 7.
	Unregulated electrical generator	Use electrical generator with a
	being used has excessive voltage.	proper voltage regulator. Sprayer
		requires 120VAC, 60 Hz,
		1500-Watt generator.

312001R 29