Ransburg Evolver 303 Solvent Applicator A11976-XXX - Manual (Page 38)

Air Valve Removal
(See Figure 11)
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
loosening 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
!
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.
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 11).
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 11 making sure that the alignment tab on
the bushing [14] lines up with the align groove in
the body [19].
Add adhesive (7969-03, blue) to secure piston
nut (7) to piston shaft (10). Torque piston nut (7)
to 35 lbs-in.
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
35
Evolver 303 Robotic Atomizers - Maintenance
Ransburg
AA-07-03.2