Ransburg REA Automatic Applicators 77359, 76110, 77140 - Manual (Page 39)

• From time to time it is desirable to test the
electrical integrity of the 70430-00 resistive
electrode (see “To Test” in the “Service for
9000W”, previously discussed in the
“Maintenance” section of this manual).
BARREL REASSEMBLY
(REA 9000R and 900A)
1. Place conductive female chevron adaptor onto
the front of shaft with the concave side toward
the front.
2. Screw the four (4) new chevron seals onto shaft,
concave sides forward.
C A U T I O N
!
> To avoid damage to the chevron seals, they
MUST be installed from the rear of the barrel.
C A U T I O N
!
>
DO NOT push the chevron seals straight
onto the shaft. The shaft threads may
damage the chevron bore and cause the
applicator to leak fluid.
> Inspect needle/electrode shaft sealing
surface for wear. If it is rough or uneven,
replace it.
3. Place male non-conductive chevron adaptor
onto shaft with the convex end rearward.
NOTE
>
The chevron adaptors and chevron
seals should seat together to form an
unbroken seal.
4. Screw needle/electrode onto shaft hand- tighten.
NOTE
> Apply a light coating of dielectric
grease to the chevron seals. The pack-
ing tube 18842-02 should be thoroughly
packed with LSCH0009-00 dielectric
grease leaving no air space or voids
when assembling.
5. Place packing tube over the end of shaft.
6. Place the new u-cup into rear retainer with the
open side out.
C A U T I O N
!
> Failure to pack the needle electrode/elec-
trode shaft assembly and packing tube may
cause lower electrical output of the applicator.
7. Place new o-ring onto rear retainer.
8. Place rear retainer over shaft with the open
end toward the rear.
9. Place the spacer over shaft, flanged end first.
10. Place the six (6) (Belville) spring washers onto
shaft with the first, third, and fifth ones with the
cupped side facing the electrode (front of shaft),
and the second, fourth and sixth ones with the
cupped side facing the rear of shaft (see Figure 8).
NOTE
> Seat the u-cup into the rear retainer
very carefully with the eraser end of a
pencil or a wood or plastic dowel rod.
Ransburg
REA Automatic Applicators - Maintenance
35 AA-99-02.5