Fluid Packing Rod Removal And Repair - Graco PRO 224-094 Instructions Manual

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
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
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
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.
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
Fig 22
Electrode
solvent
, assemble
3h
3f
3d
3a
3e
3b
SERVICE
KEY
3 Fluid Packing Rod Assembly
45 Hex Nut Driver
Fig 21
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.
3g
3c
3
45
3
(Item 11 not included with
Fluid Packing Rod Assembly)
E
0448
11
03224