Operation
Adjust the Spray Pattern
WARNING
INJECTION HAZARD
To reduce the risk of component rupture
and serious injury, including injection, do not exceed the gun's maximum fluid
working pressure of 950 psi (66 bar) or the maxi- mum working pressure of the lowest rated compo- nent in the system.
NOTE: Optional gun parts are available for special applications. See page 20.
1.Set the fluid pressure at 300 psi (21 bar) with the fluid regulator.
2.Trigger the gun to check the atomization; do not be concerned about the pattern shape yet.
3.Increase the fluid pressure just to the point where a further increase in fluid pressure does not signifi- cantly improve fluid atomization.
4.Close the pattern adjustment valve by turning the knob (see Fig. 4) counterclockwise all the way. This sets the gun for its widest pattern.
5.Set the atomizing air pressure at about 20 psi (1.4 bar). Check the spray pattern, then adjust the air pressure until the tails are completely atomized and pulled into the spray pattern. See Fig. 5. Do not exceed 100 psi (7 bar) air pressure to the gun.
For a narrower pattern, turn the pattern adjustment valve knob clockwise. If the pattern is still not narrow enough, increase the air pressure to the gun slightly or use a different size tip.
NOTE: For some spray tips, when the line air pressure to the gun is increased to a certain level, the spray pattern will become round. This is the smallest pattern width. Further increases in air pressure will force the pattern to turn from horizontal to vertical or from verti- cal to horizontal.
Apply the Fluid
When applying the fluid, keep the gun a consistent distance, 8 to 10 inches (200 to 250 mm), from the surface of the object being sprayed. Always hold the gun at a right angle from the surface. Do not make an arc with the gun as it causes an uneven coat of fluid. See Fig. 6.
Pattern
Adjustment
Knob
Fig. 4
No Air | Too Little Air | Right Amount | ||
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| of Air | |
Fig. 5 |
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RIGHT
WRONG
Fig. 6