Step 7
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” fi rst, 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.
Step 8
Inspect center section seals for signs
of wear. If necessary, remove seals
with o-ring pick and replace.
NOTCHED
END
PRO-FLO
®
AIR DISTRIBUTION SYSTEM (ADS) DISASSEMBLY
WIL-11250-E-03 31 WILDEN PUMP & ENGINEERING, LLC
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