Fluid Packing Rod Removal And Repair - Graco 236685 Instructions And Parts List

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. Prepare the gun for service as instructed on
page 28.
2. Remove the air cap assembly and the gun shroud.
3. Remove the jam nut (46) and actuator arm (19).
See Fig. 25, page 32.
NOTE: The fluid nozzle must be in place when remov-
ing or installing the jam nut and actuator arm.
4. Remove the fluid nozzle, resistor stud, and elec-
trode needle as instructed on page 29.
5. Remove the fluid packing rod assembly (28) with
the multi-tool (83). See Fig. 23.
6. Clean all the parts, and check them for wear or
damage. Replace the parts if necessary.
Before installing the fluid packing rod assembly
(28), 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.
CAUTION
Clean all the parts in non-conductive solvent compat-
ible with the fluid being used, such as xylol or mineral
spirits. Use of conductive solvents can cause the gun
to malfunction.
Service
7. If the parts are purchased separately, assemble
them as instructed in steps 8 to 11 and as shown
in Fig. 24, on page 32.
If installing the complete fluid rod assembly, go to
step 12, page 32.
28
Fig. 23
83
03902A
Continued on the next page.
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