Graco 3A1334E important safety instructions Grease Models, Relieve pressure

Troubleshooting

Grease Models

Pump fails to operate	Inadequate air supply pressure or	Increase air supply and/or clear
	restricted air lines	restriction.
	Closed or clogged pump valves	Open and/or clean.
	Clogged fluid line, hose, valve, or	Relieve pressure.
	other accessory	Clear obstruction.
	Damaged air motor	Assess damage, and service air
		motor.
	Exhausted fluid supply	Refill and reprime or flush.
Continuous air exhaust	Worn or damaged piston o-ring or	Assess wear or damage, and service
	valve cup	air motor.
Erratic pump operation	Exhausted fluid supply	Refill and reprime or flush.
	Worn pump seals	Replace.
	Damaged shovel tube	Replace.
	Damaged check seat	Replace pump piston or shovel rod
		(or other damaged part).
Errataic or accelerated pump speed	Exhausted fluid supply	Refill and reprime of flush.
	Fluid too heavy for pump priming	Use inductor or follow plate.
		Replace valve gasket.
	Damaged valve gasket
		Lower air pressure to prevent reoc-
		currence.
	Worn piston seal	Replace.
	Damaged upper check seat	Replace pump piston.
	Worn fluid intake seal	Replace.
	Damaged lower check seat	Replace shovel rod.
	Inadequate air supply pressure or	Increase air supply and/or clear
Pump operates but output is low	restricted air lines	restriction.
	Partially closed or clogged pump	Open and/or clean.
	valves
	Air pockets in the grease inlet	Eliminate the air pockets.
	Partially clogged fluid line, hose,	Relieve pressure.
	valve, or other accessory	Clear obstruction.
	Worn seals	Replace.
Grease leaking from muffler	Worn throat seal	Replace.

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