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Service
Air Cap/Nozzle/Resistor Stud
Replacement (continued)
6. Trigger the gun while installing the fluid nozzle (21)
and resistor stud (22) assembly with the multi-tool
(62). Tighten until the fluid nozzle seats in the gun
barrel.
7. Install the air cap assembly (1, 2, 8). Test the gun
resistance as instructed on page 19.
Fig. 11
20
2
1, 8
21
22
25
D
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62
Apply a very light coat of lubricant
Tighten 1/8 to 1/4 turn past hand tight
Fig. 12
21
22
62
0444A
Torque to 10 in-lbs (1.12 NSm)
Electrode Replacement
1. Prepare the gun for service as instructed on page
22.
2. Remove the air cap, nozzle and resistor stud as
instructed on page 22.
3. Unscrew and remove the fluid needle/electrode
(20) with the multi-tool (62). See Fig. 13. Hold the
needle shaft end to prevent it from turning.
CAUTION
Be careful not to damage the contact wire when
removing the electrode from the gun.
4. Apply low-strength (purple) Loctiter or equivalent
thread sealant to the electrode and needle shaft
threads. Install the new electrode finger-tight. Do
not over-tighten it.
CAUTION
To avoid damaging the plastic threads or contact
wire, be very careful when installing the electrode.
5. Install the fluid nozzle, resistor stud, and air cap
assembly as instructed at left.
6. Test the gun resistance as instructed on page 19.
Fig. 13
62
20
Apply low-strength (purple) Loctite or equivalent to needle shaft
threads
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