Operation. Graco 3A1973H SaniForce 515 Diaphragm Pump

Operation

Operation

Pressure Relief Procedure

The equipment stays pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid or splashing fluid, follow this procedure whenever you stop pumping and before cleaning, checking, or servicing equipment.

1.

Shut off the air to the pump.

2.

Open the dispensing valve, if used.

3.

Open the fluid drain valve to relieve fluid pressure.

Have a container ready to catch the drainage.

Sanitize the Pump Before First

Use

It is the user’s responsibility to properly sanitize the pump before first use. It is up to the user whether this will include disassembling and cleaning individual parts or simply flushing pump with a sanitizing solution. As

necessary, follow the steps under Starting and Adjusting the Pump,

at right, under Flushing on page 12, or

under Disassembly in the

Service section, starting on

page 16.

Starting and Adjusting the Pump

1.

Be sure the pump is properly grounded. Refer to

Grounding on page 6.

2.

Check connections to be sure they are tight. Tighten fluid inlet and outlet connections securely.

3.

Connect suction line (F) to material supply.

NOTE: If fluid inlet pressure to the pump is more than

25% of outlet working pressure, the ball check valves will not close fast enough, resulting in inefficient pump operation.

4.

Place the end of fluid hose (J) into an appropriate container.

5.

Close the fluid drain valve (G).

6.

Back out the air regulator (C) knob, and open all bleed-type master air valves (B, E).

7.

If the fluid hose has a dispensing device, hold it open while continuing with the following step.

8.

Slowly increase air pressure with the air regulator

(C) until the pump starts to cycle. Allow the pump to cycle slowly until all air is pushed out of the lines and the pump is primed.

Pump Shutdown

To avoid serious injury from splashing fluid, never move or lift a pump under pressure. If dropped, the

fluid section may rupture. Always follow the Pressure

Relief Procedure before lifting the pump.

At the end of the work shift, relieve pressure.

3A1973H 11