Service
Fluid Packing Rod Repair
The fluid packing rod can be replaced as individual parts or as an assembly. The overall assembly is
NOTE: Before installing the fluid packing rod into the gun barrel, make sure the internal surfaces of the barrel are clean. Remove any residue 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.
If the parts are purchased separately, assemble them as instructed below and as shown in Fig. 17.
1.Place the packing nut (28c) and
2.Fill the entire inner cavity of the spacer (28d) with petroleum jelly. Place the spacer on the fluid rod (28b) in the direction shown in Fig. 17. Generously apply petroleum jelly to the outside of the spacer.
3.Place the fluid packing (28f), needle packing (28e), and housing (28a) on the fluid rod (28b) as shown in Fig. 17.
28f 28h 28a 28d
28e | 28g | 28c | |
28b | |||
|
|
4.Lightly tighten the packing nut (28c). The packing nut is properly tightened when there is 2 lbs. (9 N) of drag force when sliding the packing housing (28a) assembly along the shaft. Tighten or loosen the packing nut as needed.
5.Install the
6.Make sure the spring (30) is installed against the nut (E) as shown in Fig. 17.
7.Install the fluid packing rod assembly (28) into the gun barrel. Using the
8.Install the trigger (13) and tighten the trigger screws (4).
9.Install the electrode needle, nozzle and resistor stud assembly and the air cap assembly as instructed on page 23.
10.Test the gun resistance as instructed on page 20.
28
Item 30 is not included with the Packing/Needle Assy. (28)
Apply a very light coat of lubricant
Fill entire inner spacer cavity with petroleum jelly and generously lubricate outside of spacer
Tighten packing nut to 2 lbs (9 N) of drag force
Fig. 17
E 30
0383
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