Ransburg Evolver NE A11279-XX, A11281-XX, A11775-XX, A11776-XX - Manual (Page 36)

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Evolver NE Solventborne Robotic Atomizers - Maintenance
REMOVING APPLICATOR FROM
THE REAR
MANIFOLD ASSEMBLY
(See Figure 7)
Anytime service is required, the applicator must be
removed from the tubing manifold assembly. After
the applicator is removed from the robot, always move
to a clear, clean work area to remove the applicator
shroud and begin servicing.
1. Purge all fluid from the system and blow lines
dry with pushout air before the applicator is re-
moved.
2. All pressures must be removed, both air and fluid,
before removing the applicator. Fluid pressure
can be removed by actuating the applicator trigger
with the fluid regulator open.
3. Remove applicator from robot by turning the
retaining ring counter-clockwise from the manifold
robot mounting plate.
4. Remove spray head [1] as described previously.
Disassembly
5. Remove four (4) screws [11] from dual mounting
block. Set block aside.
6. Remove and inspect the o-rings [12], [13], and
[14]. Replace if necessary.
7. Remove retaining ring [10] by pulling straight
up.
8. Remove the five (5) break-away screws from ring
and set aside.
9. Remove the three (3) screws [16] and the two (2)
bolts [9] from the bottom of the valve body [5].
Inspect the five (5) o-rings [6,7] together with the
two (2) o-rings [7] located within the screws [9] and
replace if necessary. Reassemble in reverse order.
10. To remove the dump valve use the valve removal
tool [B], remove the valve assembly [2] by turning
counter-clockwise. Use tool [A] to remove the seat
[1]. When replacing parts lubricate
o-rings. Torque both the valve and seat to 15-20 lbs•in
(1.7 - 2.0 Nm).
FLUID REGULATOR
1. To disassemble the fluid regulator, first remove
the regulator cap [13] using tool [C]. Turn counter-
clockwise.
2. Remove the six (6) screws [15].
3. Remove diaphragm assembly [8, 9, 10, 11, and
> Once the regulator bonnet [12] is
removed, diaphragm [10] will be loose and
may fall out.
NOTE
14] and inspect it for wear or damage. Pay particular
attention to the air side, since it can be damaged by
solvent contact. Replace if neces-
sary.
4. Use a 3/16" Allen wrench to unscrew the pop-
pet seat retainer [5]. The tungsten carbide seat
and needle may pop out because of the spring
force applied against them.
5. Inspect the needle and seat assembly [5] for
wear. If wear or damage is evident, replace. R e -
place both needle and seat at the same time because
they are a matched set. Inspect o-ring [7] for damage,
replace as necessary.
6. Reassemble the fluid regulator by inserting t h e
spring [4], needle and seat [5], and o-ring [7]
back into the regulator block assembly. Be sure to
lube o-ring. Secure the needle/seat assembly by
screwing the seat retainer [5] into the regulator
block assembly until a torque of 8-10 lbs•in
(0.9-1.1 Nm) is obtained.
AA-05-01.5