Sandpiper Diaphragm Pump S30B1XBAAAS000.

Inspect all fasteners for loosening caused by gasket creep

Retighten loose fasteners to prevent leakage, following recommended torques

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 in the event of diaphragm rupture

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)

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?

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

Pre-maintenance Safety Measures

Shut off the compressed air line

Disconnect the air line from the pump

Pilot Valve Disassembly and Inspection

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

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