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4. Remove the trigger adjustment nut if it was required
when pulling the needle shaft from the barrel packing
chamber. Then remove the packing nut, spacer, rear
seal retainer sub-assembly, and packing tube from the
rear of the needle shaft. The spring loaded u-cup and
o-ring can now be re-moved from the rear seal retainer.
Figure 14: Needle Shaft Insert/Removal
NOTE
† If the spacer and seal retainer do not separate
easily, wedge a knife blade between them and pry
them apart.
Figure 15: Chevron Seal Assembly
5. Unscrew needle/electrode from shaft and slide the male
chevron adapter, the chevron seals and female chevron
adapter off the shaft (see Figure 15).
6. Remove retaining ring and air cap from barrel.
7. Loosen the fluid nozzle using the special multi-purpose
wrench and unscrew it by hand to remove.
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Cleaning and Inspection
1. Clean the packing chamber of the barrel with a suitable
solvent and a soft bristle bottle brush. DO NOT sub-
merge or soak the barrel in solvent. If the chamber
has dry paint in it and cannot be cleaned out, the barrel
MUST BE REPLACED.
† Soaking or submerging the barrel could allow
solvents into the high voltage section of the barrel,
leading to applicator failure and/or possible dangerous
conditions that could result in property damage and
personnel injury.
2. Examine the plastic section of the needle shaft and the
packing tube for signs of carbon tracking. Also, inspect
the air passages and packing chamber of the barrel for
signs of scratches, additional carbon tracking, or dried
paint. Shine a small flashlight into the front of the barrel
to highlight any damage in these areas.
3. From time to time it is desirable to test the electrical
integrity of the 70430-01 resistive electrode (see "Needle/
Electrode Resistance Testing" in the "Maintenance"
section).
Reassembly
(Refer to Figures 15, 16, 17, 18, and 19)
Figure 16: Needle Shaft Assembly (2k Packings)
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MAINTENANCE
CAUTION
!
AH-06-02-R17 (06/2022)
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