Graco 1030 dimensions Problem Cause Solution

Troubleshooting (Continued)

PROBLEM	CAUSE	SOLUTION
Displacement pump output	Siphon hose strainer is clogged	Clean strainer
low on downstroke or both
	Piston packings worn or damaged	Replace packings. See page 12.
strokes
Material leaks into wet-cup
	Intake valve ball (216) not seating	Clean and service intake valve. See
	properly	page 12.
	Clutch (9) worn or damaged	Replace clutch. See page 18.
	Air leak at pump foot valve or	Be sure foot valve is tight each day.
	siphon tube elbow	Be sure seal in elbow is in place and is
		not worn or damaged.
Material leaks into wet-cup	Loose wet-cup (202)	Tighten wet-cup enough to stop leakage
	Throat packings worn or damaged	Replace packings. See page 12.
	Displacement rod (201) worn or	Replace displacement rod. See page 12.
	damaged
Intermittent material flow out	Material supply is low or empty	Refill and prime pump. See Startup proce-
of gun		dure in operator manual. Check material
		supply often to prevent running pump dry.
	Air control on gun is set too high.	Reduce the air flow through the gun by
		turning the air control knob on the back of
		the gun.
	Hose too long or material too	Change to a shorter hose or less coarse
	coarse	material.
Heavy or poorly atomized mate-	Fluid pressure was not allowed to	Wait longer between releasing gun trigger
rial when gun is first triggered	fully self relieve after releasing gun	and re--triggering.
(lack of soft start)	trigger
	Gun was not fully triggered immedi-	Always squeeze trigger fully to prevent
	ately when squeezed, causing gun	just air from turning on, which starts pump
	air passages to clog with material.	and pressurizes hoses. Disassemble and
		clean gun.
	Air valve failure	Check and replace as needed
	Air flow sensor dirty or damaged	Check air filter.
		Clean air flow sensor (see page 4) or re-
		place as needed.
Pump does not shut off after	Air leaks in the system after the air	Check and tighten all connections be-
gun trigger is released	flow sensor	tween the air flow sensor and the gun.
	Air leaks in gun	Check gun for excessive air leaks and re-
		pair.
		See manual 309661
	Air flow sensor dirty or damaged	Check air filter.
		Clean air flow sensor (see page 4) or re-
		place as needed.
Premature prime valve fail-	Pump does not shut off after gun	Read “Pump does not shut off after gun
ures	trigger is released.	trigger is released” and fix appropriate
		problem.
		Repair or replace Prime Valve.
		See page 19.

309662 9