Ransburg Evolver 303 Dual Purge Solvent Robotic Applicator A12374-XXX - Manual (Page 42)

37
Evolver 303 Dual Purge Robotic Atomizers - Maintenance
Air Valve Removal
(See Figure 14)
1. After removal of end cap and spring, the air valve
[10] can be pulled straight out the back of the head
assembly.
2. Inspect and replace the u-cup [8], if necessary, by
holding the air valve shaft [10] on it's flats and loosen-
ing the piston nut [7] counter-clockwise.
3. Remove the seal carrier [17] with seal removal
tool [B].
4. Use a bent hook to reach inside the air valve
bushing [14], grip slot and pull out. Use the same
procedure to pull out the rear seal carrier [17].
> Use Caution as NOT TO scratch or raise burrs
on inside diameters of the parts.
C A U T I O N
!
12. If the locking tab plug connection [24] needs
to be replaced, first remove the electrode spring
connector [23] by pulling straight out with a needle
nose pliers. If removed, the spring wire should be
replaced.
13. Remove socket head screw [22] and connec-
tion plug [24] from body.
14. Replace conductive compressable contact [25]
if necessary.
15. Reinstall the connection plug [24] into the body,
making sure the tabs on the bottom align with
the notches in the body [19].
16. Insert and tighten the screw [22], making sure
the tabs remain inside the notches [24] in the body.
17. Insert the spring electrode wire [23] through
the hole in the screw using a needle nose pliers
on the straight wire portion. Carefully rotate and
push the wire through the screw hole and into the
compressable contact until the spring contacts the
screw head.
5. Remove and replace all o-rings if necessary.
6. O-rings [12] and [18] must be installed inside
their mating parts (see Figure 14).
7. The o-ring [16] should be inserted into
the front of the bushing [14] and one of the o-rings
[15] installed onto the outside groove before the
bushing is installed.
8. Reassemble the remaining parts as shown in
Figure 14 making sure that the alignment tab on
the bushing [14] lines up with the align groove in
the body [19].
9. Torque the seal carriage [13] to 30-35 lbs•in (4.0-
4.5 Nm).
10. If the u-cup needs to be replaced, assemble
on piston plate [9] and push both onto shaft, tighten
securely with piston nut [7] and install in body as
one assembly.
11. Assemble the remainder of the applicator head
as stated earlier.
AA-08-01.1