Ransburg Color Select System CCV-6100 - Manual (Page 20)

MAINTENANCE
COLOR CHANGE VALVES
Cleaning
The valve and associated parts through which
fluid passes should be cleaned after use by flush-
ing with an appropriate solvent. While flushing,
the valve should be triggered several times in
order to flush particles from the seat and stem
seal areas.
Wear Parts
Wear parts include the poppet seat, stem, valve
needle seal, and piston cup. All of these parts are
PTFE except for the stem that is stainless steel.
Wear parts should be inspected and replaced on
a regular maintenance schedule. The frequency
of replacement depends upon cycle rate and ma-
terial abrasiveness. Valves should be inspected
after six months usage. If any parts are worn, or
if paint leakage is evident, replace all wear parts
with valve repair kit KK-4841.
Valve Removal
1. Disconnect air and fluid lines from valve.
2. Insert the Spanner Tool (CCV-7) into one of
the holes in the spanner nut and rotate counter-
clockwise (as viewed from the rear air inlet fitting
in valve). If the Spanner Tool is not available, a
1-1/6-inch open-end wrench can also be used to
loosen the spanner nut.
CCV-403-SS Valve Disassembly
1. Remove valve cap (CCV-43) from valve body.
hold hex valve body with 1-1/16-inch wrench while
turning cap counterclockwise with a 1-1/8-inch
wrench.
2. Place 7/16-inch socket on clamping nut (CCV-
45), and insert a 9/32-inch socket onto the end of
the stem at opposite end of valve (Note: Older
style valves used a Phillips screwdriver slot on
>
The stem should be held steady while
the nut is rotated. Rotating the stem can
scratch the stem finish causing premature
valve needle seal wear and valve leakage.
NOTE
3. The piston cup (VA-246) is held onto the
clamping nut by a brass nut (CCV-3), which has
an 11/16-inch hex. Use a 7/16-inch hex socket
and an 11/16-inch wrench to disassemble the nut
from the clamping nut so that the PTFE piston cup
can be removed.
4. The valve indicator (CCV-42) and piston spring
(CCV-41-K2) will be free and can be removed
when the clamping nut is off the stem.
5. The stem can now be pulled from the front of
the valve body. After the stem is removed, reach
into the rear of the valve body and pull out the
spring washer (CCV-4) and the needle seal (CCV-
8). The poppet seal (CCV-40) that is behind the
stem seat can be removed from the body after
the stem is removed.
Valve Reassembly
Reassemble the CCV-403-SS valve in reverse
order, but follow these additional instructions:
1. Use Adhesive (medium strength, grade #242)
on the threads of the clamping nut and stem a
shown on the “CCV-403-SS - Parts List - Item
#18” in the “Introduction” section).
the end of the stem. Use a Phillips screwdriver
in place of nut driver). Rotate the socket coun-
terclockwise until the clamping nut is free from
the stem.
Color Select System - Maintenance
18 CS-95-01.2
Ransburg