Wilden SANFLO PX15, Operation & Maintenance Manual

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WIL-12320-E-05
31 WILDEN PUMP & ENGINEERING, LLC
Step 10
Using an O-ring pick, gently remove the O-ring from the opposite
side of the “notched end” on one side of the pilot spool. Gently
remove the pilot spool from pilot spool sleeve and inspect for nicks,
gouges and wear. Replace pilot sleeve or outer sleeve O-rings if
necessary. During re-assembly, never insert the pilot spool into the
sleeve with the “notched end” first, this end incorporates the urethane
O-ring and will be damaged as it slides over the ports cut in the sleeve.
NOTE: Seals should not be removed from pilot spool. Seals are not sold
separately.
Notched End
A I R V A L V E / C E N T E R S E C T I O N D I S A S S E M B L Y