Air
Air
Air Cap
Cap
Cap and
and
and Nozzle
Nozzle
Nozzle Replacement
Replacement
Replacement
NOTICE
NOTICE
NOTICE
Trigger the gun while removing the nozzle to help
drain the gun and prevent any paint or solvent left
in the gun from entering the air passages.
1.
Follow the steps in
Prepare the Gun for Service, page 58
2.
Remove the retaining ring (6) and air cap (5).
3.
Trigger the gun while removing the fluid nozzle
(4) assembly with the multi-tool (41).
The nozzle contact ring (4a) is a conductive
contact ring, not a sealing o-ring. To reduce
the risk of sparking or electric shock, do not
remove the nozzle contact ring (4a) except to
replace it and never operate the gun without
the contact ring in place. Do not replace the
contact ring with anything but a genuine Graco
part.
NOTE:
NOTE:
NOTE: Use non-silicone grease, Part No.
111265, on the small o-ring (4b). Do not
over-lubricate. Do not lubricate the conductive
contact ring (4a). Excessive grease can mix with
paint and blemish the finish on the workpiece.
4.
Make sure the conductive contact ring (4a) and
the small o-ring (4b) are in place on the nozzle
(4). Lightly lubricate the small o-ring (4b).
NOTE:
NOTE:
NOTE: The conductive contact ring (4a) may
show some wear at the point where it makes
contact with the barrel pin. This is normal and
does not require replacement.
5.
Make sure the electrode needle (3) is finger-tight.
6.
Trigger the gun while installing the fluid nozzle
(4) with the multi-tool (41). Tighten until the fluid
nozzle seats in the gun barrel (1/8 to 1/4 turn
past hand-tight).
7.
Install the air cap (5) and retaining ring (6). Make
sure the u-cup (6a*) is in place with the lips facing
forward.
Figure 32 Air Cap and Nozzle Replacement
3A2496H
59
