Graco 220-569 Operation All Pumps, Before You Start the Pump, Flush the Pump Before First Use

Operation (All Pumps)

Before You Start the Pump

Read and follow all instruction manuals, labels and tags supplied with this pump and with all the accesso- ries you add to the system, before operating the sys- tem.

Flush the Pump Before First Use

The pump was tested in lightweight oil. If the oil will contaminate the fluid you are pumping, flush it out with a compatible solvent.

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD

The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally. To reduce the risk of an injury from acci- dental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Proce- dure whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the spray nozzle.

1.Shut off the power to the pump.

2.In an air-powered system, close the air regulator and close the bleed-type master air valve.

3.In a hydraulic-powered system, close the hy- draulic supply line shutoff valve first, then the return line shutoff valve. In a multi-pump system, do this at each pump to isolate the pumps.

4.Close the fluid shutoff valves from the supply tanks.

5.Trigger the gun at the last gun station to relieve fluid pressure. Maintain firm metal-to-metal contact between the gun and a grounded waste pail. Repeat for all gun stations.

6.Open the pump drain valve to relieve fluid pres- sure which may be trapped in the pump or hose.

If you suspect that pressure is not fully relieved after following the steps above, wrap a fitting near the pump outlet with a rag, and slowly and carefully loosen the fitting to relieve pressure. Be careful to protect your eyes from splashing.

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