PSG Dover WILDEN PRO-FLO P2, Engineering, Operation & Maintenance

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WIL-10181-E-07
Wilden
®
17
Disassembly / Reassembly
Step 4
Remove air valve spool from air valve
body by threading one air valve bolt into
the end of the spool and gently sliding
the spool out of the air valve body.
Inspect seals for signs of wear and
replace entire assembly if necessary.
Use caution when handling air valve
spool to prevent damaging seals.
NOTE: Seals should not be
removed from assembly.
Seals are not sold separately.
Step 5
Remove pilot spool retaining snap ring
on both sides of center section with
snap-ring pliers.
Step 6
Remove pilot spool assembly from
center section.
Step 7
Using an O-ring pick, gently remove the pilot spool retaining O-ring from the
opposite side of the notched end of the spool. Gently remove the pilot spool from
pilot spool sleeve and inspect for nicks, gouges and other signs of wear.
Replace pilot spool assembly or outer sleeve O-rings if necessary. During re-
assembly never insert the pilot spool into the sleeve with the “notched” end side
first, this end incorporates the urethane O-ring and will be damaged as it slides
over the ports cut in the pilot spool sleeve.