Sandpiper Diaphragm Pump S30B1HCAAAS000.

Inspect all fasteners for loosening caused by gasket creep

Retighten any loose fasteners to recommended torques

Locate the pump as close to the product being pumped as possible

Ensure suction line length and number of fittings are minimized

Verify suction line diameter is not reduced

Connect pump air inlet to an adequate air supply

Install a pressure regulating valve to maintain recommended air pressure limits

Shut off the compressed air line

Disconnect the air line from the pump

Remove Hex Head Cap Screws (1-F)

Remove spool part of sleeve and spool set (1-B)

Press sleeve (1-B) from body (1-A)

Shut off the compressed air line

Disconnect the air line from the pump

Is the pump used for materials that settle out or solidify?

Flush the pump after each use if materials tend to settle out or solidify

Is the pump used for toxic or aggressive fluids?

Pre-maintenance safety procedures

Shut off the compressed air line

Disconnect the air line from the pump

Remove plunger, actuator (29) from center of intermediate pilot valve cavity

Remove Ring, Retaining (30) and discard

Remove bushing, plunger (7) and inspect for wear

Replace bushing, plunger (7) if necessary with genuine parts

Remove O-Ring (26), inspect for wear and replace if necessary with genuine parts

Is the pump operating erratically or has it stopped?

Inspect the air exhaust muffler for blockage or icing

Clean or de-ice the muffler screen as required

Is there water in the compressed air supply?