Clean The Air Cap And Fluid Nozzle - Graco PRO Auto Xs Instructions-Parts List Manual

Maintenance
Clean the Air Cap and Fluid
Nozzle
Equipment Needed
• soft bristle brush
• compatible solvent
Procedure
1. Discharge the system voltage, page 21.
2. Relieve the pressure, page 21.
3. Remove the air cap assembly (1, 3) and shroud (2).
See F . 15..
IG
4. Wipe the fluid nozzle (4), shroud (2), and exterior of
the gun clean with a cloth dampened in non-flam-
mable solvent. Avoid getting any solvent into the air
passages. Whenever possible, point the gun down
when cleaning it.
5. If it appears that there is fluid inside the fluid nozzle
(4) air passages, remove the gun from the line for
servicing.
6. Clean the air cap (3) with the soft bristle brush and
solvent or submerge the air cap in suitable solvent
and wipe it clean.
CAUTION
Do not use metal tools to clean the
air cap or fluid nozzle holes as this
could scratch them, and make sure
the electrode is not damaged.
Scratches in the air cap or nozzle or
a damaged electrode can distort the
spray pattern.
7. Slide the shroud (2) onto the gun.
8. Carefully install the air cap (3). Be sure to insert the
electrode (7) through the center hole of the air cap.
Rotate the air cap to the desired position.
28
9. Make sure the u-cup (1a) is in place on the retaining
ring (1). The lips must face forward. Tighten the
retaining ring until the air cap is held firmly in place;
you should not be able to rotate the air cap horns by
hand.
10. Test gun resistance, page 30.
2
1a
3
1
Fig. 15. Clean Air Cap and Fluid Nozzle
7 4
309457G
TI1779A