PSG Wilden PS220 Series, Инженерия, эксплуатация и обслуживание, Страница: 18 / 28

WILDEN PUMP & ENGINEERING, LLC 16
WIL-11560-E-07
Step 4
Remove air valve end cap to expose
air valve spool by simply lifting up
on end cap once air valve bolts are
removed.
Step 5
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 6
Remove pilot spool sleeve retaining
snap ring on both sides of center
section with snap ring pliers.
Step 7
Remove pilot spool sleeve from
center section.
Step 8
With O-ring pick, gently remove the O-ring from the opposite side of the
center hole cut on the spool. Gently remove the pilot spool from sleeve
and inspect for nicks, gouges or other signs of wear. Replace pilot sleeve
assembly or outer sleeve O-rings if necessary. During reassembly never
insert the pilot spool into the sleeve with the center cut side 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.
A I R V A L V E D I S A S S E M B L Y