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

Maintenance
5. Clean the air cap and fluid nozzle daily, minimum.
Some applications require more frequent cleaning.
Replace the fluid nozzle and air cap if they are dam-
aged. See Clean the Air Cap and Fluid Nozzle,
page 20.
6. Check the electrode and replace if broken or dam-
aged. See Prepare gun for repair, page 28. on
page 31.
7. Check for fluid leakage from the gun and fluid
hoses. See Check for Fluid Leakage on page 21.
Tighten fittings or replace equipment as needed.
8. Clean fluid and air filters.
9. Flush the gun before changing colors and whenever
you are done operating the gun.
Clean the Air Cap and Fluid
Nozzle
Equipment Needed
• soft bristle brush
• compatible solvent
Procedure
To reduce the risk of an injury, follow the Pressure
Relief Procedure on page 15 when you stop
spraying and whenever you are instructed to relieve
the pressure.
1. Relieve the pressure, page 15.
2. Remove the charging probe (2), see page 9.
3. Remove the air cap assembly (1, 3) and shroud
(48). See F . 14.
IG
20
4. Wipe the fluid nozzle (4), shroud (48), and exterior
of the gun clean with a cloth dampened in solvent.
Avoid getting any solvent into the air passages.
Whenever possible, point the gun down when clean-
ing it.
5. If it appears that there is paint 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.
NOTICE
Do not use metal tools to clean the
air cap or fluid nozzle holes as this
could scratch them. 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 (48) 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.
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. Install the charging probe (2), see page 9.
11. Test gun resistance, page 22.
313227E