Air Cap/Tip Guard, Spray Tip, And Fluid Seat Housing Replacement - Graco 333013B Instructions - Parts Manual

Air Cap/Tip Guard, Spray Tip, and Fluid Seat Housing Replacement

1. See Prepare the Gun for Service, page 38.
2. Remove the retaining ring (24), shroud (26), and air
cap/tip guard assembly (25).
F . 26 Remove Air Cap
IG
3. Disassemble the air cap assembly. Check the con-
dition of the u-cup (24a), o-ring (25b), and tip gasket
(3a). Replace any damaged parts.
40b
25
3
25a
F . 27 Disassemble Air Cap Assembly
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F . 28 Tip Gasket
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4. To replace the electrode (25a), see Electrode
Replacement, page 40.
333013B
26
25
24
24a
24
3a
The conductive ring (33) is a conductive metal
contact ring, not a sealing o-ring. To reduce the risk
of fire, explosion, or electric shock:
• Do not remove the conductive ring except to
replace it.
• Never operate the gun without the conductive ring
in place.
• Do not replace the conductive ring with anything
but a genuine Graco part.
5. Remove the fluid seat housing (4) using the
multi-tool (48).
F . 29 Seat Housing Replacement
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NOTICE
To avoid damaging the seat housing and gun bar-
rel, never overtighten the seat housing. Overtight-
ening may affect the fluid shutoff.
6. Install the fluid seat housing (4). Tighten until snug,
then 1/4 turn more.
7. Check that the spray tip gasket (3a) is in place.
Align the spray tip tab with the groove in the air cap
(25). Install the spray tip (3) in the air cap.
8. Make sure that the electrode (25a) is installed cor-
rectly in the air cap.
9. Check that the air cap o-ring (25b) is in place.
10. Check that the u-cup (24a) is in place on the retain-
ing ring (24). The lips of the u-cup must face for-
ward.
Repair
48
4
39