Sandpiper Diaphragm Pump S30B1I2AAAS000.

Shut off the compressed air line

Disconnect the air line from the pump

Inspect O-Rings (4-C) and replace if required

Remove spool (4-D) from sleeve (4-B)

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 use if materials tend to settle 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 and discard Ring, Retaining (30)

Inspect bushing, plunger (7) for wear

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

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)

Inspect O-Ring (1-D) and replace if necessary

Inspect all fasteners for loosening

Inspect all suction-side gaskets and pipe connections for air leakage

Check all suction screens or strainers and clear any obstructions

Inspect the air exhaust muffler for blockage, icing, or presence of pumped fluid

Inspect the air exhaust piping routing for safe containment of hazardous or toxic product