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Repair
NOTICE
Do not overtighten the fluid seat housing (24).
Overtightening may damage the housing and
the gun barrel, resulting in improper fluid
shutoff.
6. Trigger the g
un and install the fluid seat housing
(24). Tighte
n until snug, then 1/4 turn more.
7. Check that t
he spray tip gasket (27a) is in place.
Align the sp
ray tip tab with the groove in the air
cap (25). In
stall the spray tip (27) in the air cap.
8. Make sure t
hat the electrode (25a) is installed
correctly
in the air cap.
9. Check that
the air cap o-ring (25b) is in place.
10. Check that
the u-cup (22a) is in place on the
retainin
gring(22).Thelipsoftheu-cupmust
face forw
ard.
NOTICE
To avoid
damaging the tip guard, orient the
air cap a
ssembly (25) before tightening the
retaini
ng ring (22). Do not turn the air cap
when the
retaining ring is tight.
11. Orientate the air cap and tighten the retaining
ring securely.
12. See Test Gun Resistance, page 32.
Electrode Replacement
To reduce the risk of fire, explosion, or electric
shock, do not operate the spray gun without the
electrode installed in the air cap.
1. See Prepare the Gun for Service, page 39.
2. Remove the air cap assembly (25). See
Air Cap, Spray Tip, and Fluid Seat Housing
Replacement, page 40.
3. Pull the electrode (25a) out of the back of the air
cap, using a needle-nose pliers.
4. Push the new electrode through the air cap hole.
Make sure the short end (BB) of the electrode
engages the hole (CC) in the back of the air
cap. Press the electrode in place firmly with your
fingers.
5. Install the air cap assembly.
6. See Test Gun Resistance, page 32.
Figure 24 Replace Electrode
3A2495C
41