Repair
Air Cap and Noz
zle Replacement
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. See Prepare the Gun for Service, page 37.
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.
NOTICE
Use non-
silicone grease, Part No. 111265, on
the sma
ll o-ring (4b). Do not over-lubricate. Do
not lub
ricate the conductive contact ring (4a).
4. Make sure the conductive contact ring (4a) and
thesmallo-ring(4b)areinplaceonthenozzle
(4). Lightly lubricate the small o-ring (4b).
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 i
n the gun barrel (1/8 to 1/4 turn
past hand-tig
ht).
7. Install the ai
r cap (5) and retaining ring (6). Make
sure the u-cu
p (6a*) is in place with the lips facing
forward.
8. See Test Gun R
esistance, page 31.
Figure 20 Air Cap and Nozzle Replacement
38 3A2494E
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