WIL-10187-E-03
Wilden
®
19
Disassembly / Reassembly
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 retaining snap ring on
both sides of center section with snap-ring
pliers.
Step 7
Remove air chamber bolts with 1/4" hex-
head wrench.
Step 8
Remove pilot spool bushing from
center block.
Step 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 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.
Step 10
Figure 10
Check center block Glyd™ rings for signs
of wear. If necessary, remove Glyd™ rings
with O-ring pick and replace.
NOTE:
Threaded sleeves (see A
—
Figure 10) are removable and
can be replaced if necessary.
Sleeves can be press fit by hand.
.
