Setup
Flush Before Using Equipment
1.The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid contaminating your fluid with oil, flush the equipment with a compatible solvent before using the equip- ment. See Flushing and Cleaning, page 14.
2.Relieve the pressure. See Pressure Relief Proce- dure, page 10.
Select a Spray Tip and Air Cap
The fluid flow and pattern width depend on the size of the spray tip, the fluid viscosity, and the fluid pressure. See Spray Tip Selection Chart, page 30. Contact your Graco distributor for assistance in selecting an appropri- ate spray tip for your application.
Install a Spray Tip
Install a spray tip in the gun. Ensure that the tip locating tab is positioned in the slot of the air cap. See FIG. 5. Tighten the air cap retaining ring (6) firmly by hand to ensure a good seal between the tip gasket and the dif- fuser (5).
Slot |
|
Tip Locating Tab | TI6847A |
FIG. 5
Position the Air Cap
The air cap and spray tip position determines the direc- tion of the spray pattern.
Rotate the air cap (the spray tip rotates with it) as needed to achieve the desired spray pattern direction. See FIG. 6.
Setup
TI6558A
FIG. 6
Air Cap Alignment Pin
Model G15 guns (249233) use an air cap alignment pin to position the air cap. The standard location of the air cap alignment pin is the horizontal air cap position.
If you would like to change the spray pattern direction, use a needle nose pliers to unscrew the pin and relocate it to the desired position. See FIG. 7. When relocating the pin use
The air cap alignment pin can be removed according to preference.
Air cap alignment pins do not come standard with model G40 guns (249242).
TI6847A
Horizontal
Air Cap Position
(standard)
Vertical
Air Cap Position
FIG. 7
8 | 311001C |
