Ransburg Vector R Series Classic 79520 R90 Waterborne - Manual (Page 42)

Vector R Series Classic Applicators - Maintenance
38
Ransburg
AH-06-02.12
† To avoid damage to the chevron seals,
they MUST be installed from the rear of the
barrel.
C A U T I O N !
1. Place conductive female chevron adapter onto
the front of shaft with the concave side toward
the front.
2. Screw the four (4) chevron seals onto shaft,
concave sides forward (see Figure 17).
† DO NOT push the chevron seals straight
onto the shaft. The shaft threads may dam-
age the chevron bore and cause the appli-
cator to leak fluid.
† Inspect needle/electrode shaft sealing
surface for wear. If it is rough or uneven,
replace it.
C A U T I O N !
3. Place male nonconductive chevron adapter
onto shaft with the convex end rearward.
† The chevron adapters and chevron
seals should seat together to form an un-
broken seal.
NOTE
4. Screw needle/electrode onto shaft and hand
tighten.
† Apply a light coating of dielectric grease
to the chevron seals and needle shaft.
NOTE
5. Fill the inner diameter of the packing tube with
dielectric grease.
6. Insert the needle shaft, rear section first, into
the packing tube. Rotate the needle shaft while
moving back and forth inside the packing tube
until fully inserted.
7. With your finger, wipe the excess grease from
both ends of the packing tube. Using the excess
grease, apply a thin film to the outer surface of
the packing tube and to the external o-ring on the
cartridge seal.
† FAILURE to coat the needle shaft as-
sembly MAY CAUSE lower electrical output
of the gun.
C A U T I O N !
† Be generous with the dielectric grease
when applying it to the packing tube and
needle shaft. This helps to remove air
voids from this chamber. DO NOT apply
so much grease that it creates an air lock
during assembly of the gun.
NOTE
8. Apply a light film of dielectric grease to the
seal retainer o-ring and install it into the external
groove.
9. Insert the spring loaded u-cup seal into the seal
retainer (with the concave side facing outward).
Use the short end of the spacer to seat the seal.
10. While holding the rear seal retainer sub-assem-
bly and spacer together, place these components
(with the spacer rearward) onto the rear of the
needle shaft and slide them over the sealing area.
11. Place the six (6) spring washers onto shaft with
the first, third, and fifth ones concave (cupped)
side forward. The second, fourth, and sixth ones
should be cupped side rearward (see Figure 17).