Operation
3A8099A 17
5. Turn the fan adjustment knob (21g) clockwise until
completely closed.
6. Set the atomizing air pressure to approximately 5
psi (34 kPa, 0.34 bar) when triggered.
7. Spray the gun to check the spray pattern.
8. Slowly increase the inlet air pressure until the tails
are completely atomized and pulled into the spray
pattern. See F
IG. 20.
NOTE: Most spray material, especially low viscosity
materials, typically atomize at 7 to 10 psi (48 to 69 kPa,
0.48 to 0.7 bar). Setting the air pressure too high causes
material build-up on the air cap and decreases spray
efficiency.
9. Adjust the pattern width if desired.
FIG. 17: Close the fan adjustment knob
FIG. 18: Set atomizing air pressure
FIG. 19: Check spray pattern
FIG. 20: Atomizing tails
FIG. 21: Spray pattern widths
No air
pressure
Too little air
pressure
Correct
amount of air
pressure
Wide pattern
(Standard)
Narrow Pattern
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