Graco Inc ti5735a, 309639, 309250, 310820, 310876, 310824D Cord. See page 7, Grounding and Electric

			Troubleshooting
Problem		What To Check	What To Do
	(If check is OK, go to next check)		(When check is not OK, refer to this column)
Low Output	1.	Worn spray tip.	Relieve pressure, page 8. Replace tip. Refer to
			gun instruction manual, 309639.
	2.	Verify pump does not continue to	Service pump. See page 14, Displacement
		stroke when gun trigger is	Pump Replacement.
		released.
	3.	Prime valve leaking.	Relieve pressure, page 8. Then repair prime
			valve. See page 24, Manifold Replacement.
	4.	Suction hose connections.	Tighten any loose connections. Check o-rings
			on suction hose swivel.
	5.	Electric supply with volt meter.	Reset building circuit breaker; replace building
		Meter must read 100-130 VAC for	fuse. Repair electrical outlet or try another
		110-120 VAC models and	outlet.
		210-255 for 240 VAC models.
		Low voltages reduce sprayer per-
		formance.
	6.	Extension cord size and length.	7. Replace with a correct, grounded extension
			cord. See page 7, Grounding and Electric
			Requirements.
	8.	Leads from motor to circuit board	Be sure male terminal pins are centered and
		for damaged or loose wire con-	firmly connected to female terminals. Replace
		nectors. Inspect wiring insulation	any loose terminals or damaged wiring.
		and terminals for signs of over-	Securely reconnect terminals.
		heating.
	9.	Worn motor brushes which must	Replace brushes. See page 19. Motor Brush
		be 1/4 in. (6 mm) minimum.	Replacement.
	10.	Motor brushes binding in brush	Clean brush holders. Remove carbon dust by
		holders.	using compressed air to blow out brush dust.
	11.	Low stall pressure. Turn pressure	Replace pressure control assembly. See page
		control knob fully clockwise.
			23, Pressure Control Assembly Replace-
			ment.
	12.	Motor armature for shorts by	Replace motor. See page 27, Motor
		using an armature tester	Replacement.
		(growler) or perform spin test,
		page 17.

12 310824D