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308-08423
SERVICE
Fluid Packing Rod Removal and Repair
NOTE: The fluid packing rod can be replaced as
individual parts or as an assembly . If the assembly is
purchased,
it is pre-adjusted at the factory
.
1. Remove
the jam nut (25) and arm (29). See Fig 20 .
2. Remove
the air cap assembly
, fluid nozzle and resis
-
tor stud and electrode as described in Electrode
Replacement.
3. Remove
the fluid packing
rod assembly (3), using the
9
mm hex nut driver (45). See Fig 21 .
CAUTION
Clean all parts in non-conductive solvent
compatible
with the fluid being used, such as xylol
or
mineral spirits. Use of conductive solvents can
cause the gun to malfunction.
4. Check
all the parts for wear or damage and replace if
necessary.
Before installing the fluid packing rod assembly (3),
clean the internal surfaces of the barrel with a soft
brush or cloth. Check the inside of the barrel for
marks from high voltage arcing. If the marks are
present,
replace the barrel.
5.
If the parts are purchased separately ,
assemble
them as instructed in steps 6 to 9 and as shown in
Fig 22 .
If installing the complete fluid rod assembly ,
go to
step
10, on page 24.
Fig 21
KEY
3 Fluid
Packing Rod Assembly
45
Hex Nut Driver
45
3
0448
6. Place
the packing nut (3c) and o-ring (3g) on the fluid
rod
(3b). The flats on the packing nut must be facing
toward
the back of the fluid rod.
7. Fill
the entire inner cavity of the spacer (3d) with the
dielectric grease included with the gun. Place the
spacer
on the fluid rod (3b), in the direction shown in
Fig
22 . Generously apply the grease to the outside
of
the spacer
.
KEY
E Nut
3 Fluid
Packing Rod
Assembly
3a
Packing Housing
3b
Fluid Rod
3c
Packing Nut
3d Spacer
3e
Rod Packing
3f
Fluid Packing
3g O-Ring
11 Spring
3
3e
3a
3d
3b
3h
11E
03224
3c
3f
3g
(Item 11 not included with
Fluid Packing Rod Assembly)
Fig
22