WIL-10131-E-01
29
WILDEN PUMP & ENGINEERING, LLC
PRO-FLO X
™
AIR DISTRIBUTION SYSTEM (ADS) DISASSEMBLY
Step 11.
Figure 11
Remove and inspect the shaft
bushings (2) replace if necessary.
Step 12.
Figure 12
Inspect center block Glyd rings (2)
for wear. If replacement is necessary,
use an o-ring pick to remove the
used Glyd rings then replace with
genuine Wilden replacement parts.
Step 7.
Figure 7
Remove the air chamber and inspect
air chamber gaskets (2). Replace if
necessary.
Step 8.
Figure 8
Remove the pilot spool from the
center section.
Step 9.
Figure 9
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 or gouges and other signs of
wear. Replace pilot sleeve assembly or
outer sleeve o-rings if necessary. During
re-assembly never insert the pilot spool
into the sleeve with the “center cut” side
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 10.
Figure 10
Once the air chambers have been
removed, the square air valve nuts
(6) may be removed or replaced if
necessary.
