Graco 3:1 President [9/16] Operation

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Operation

Shutdown and Care of the Pump

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

Never allow paint to dry in the pump and lines.

To shutdown the system

1. Relieve the pressure. Stop the agitator, and

lubricate it.

2. If using a Graco fluid pressure regulator at the

gun, reverse its regulating key and thread it into

the regulator cap as far as it will go.

3. Loosen the spray gun air cap about three turns,

hold a rag over the front of the air cap and fully

trigger the gun. This forces paint in the gun, hose

and regulator back into the circulating line. Close

the fluid shutoff valves (C) at that gun station,

Repeat for the other gun stations.

4. Open the bleed–type master air valve (N), and the

pump air regulator (204) to restart the pump.

Circulate the paint to remove all trapped air before

shutting down.

5. Disconnect the gun’s fluid hose from the gun and

the fluid regulator. Plug the regulator outlet. Blow

compressed air and compatible solvent through

the hose to clean it. Clean the gun according to the

instructions supplied with it. Each month remove

and clean the fluid regulator.

6. If you are not using an air line lubricator, manually

lubricate the motor at least once a day.

7. Circulate the fluid in the lines often enough during

the shutdown to prevent the paint from drying.

NOTE: To drain the circulating lines and flush the

system, see Flushing on page 7.