Graco Inc 236-870, 308-230, 236-628 manual Pump Shutdown, Flushing and Storage, Recirculation Line

Operation

Pump Shutdown

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10.

At the end of the work shift, relieve the pressure.

Flushing and Storage

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10.

Flush the pump when necessary to prevent the fluid you are pumping from drying or freezing in the pump and damaging it. Use a compatible solvent.

Before storing the pump, always flush the pump and relieve the pressure.

Recirculation Line

The recirculation tube (K, supplied with Models 236–870, 224–833, and 236–412) drains unused fluid back into the fluid container, ensuring an even flow at the gun. Recirculation also provides gentle fluid agita- tion. To recirculate fluid, open the drain valve (J) while you are spraying. To stop recirculation, close the valve.

Surge Tank (Models 236–628, 236–869, 236–412, 236–868, and 236–414)

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10.

The surge tank filter screen may require periodic cleaning. First, relieve the pressure. Unscrew the surge tank cover from its base and remove the filter screen. Clean the screen with a compatible solvent and reinstall it in the surge tank.

An optional Vitonr gasket is supplied for the surge tank, for use in applications where the standard EPDM gasket is unsuitable.

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