WIL-11730-E-01
18
PR460 Bolted Metal
Step 4
Step 5
Step 6
Remove air valve end cap to expose air
valve spool by simply lifting up on end
cap once air valve bolts are removed.
NOTE:
Pro-Flo R air valve incorporates
an end cap at both ends of the air valve.
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
Remove pilot spool sleeve retaining snap
ring on both sides of center section with
snap ring pliers.
Step 7
Step 8
Remove pilot spool sleeve from
center section.
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:
Do not remove seals from the pilot spool. Seals are not sold separately.
DISASSEMBLY / ASSEMBLY
NOTCHED
END
