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Troubleshooting
Troubleshooting
Problem
Spray Pattern
Right
Spray Pattern
Wrong
Heavy top
or bottom
Spray Pattern
Wrong
Split pattern
Spray Pattern
Wrong
Gun spitting
10
Cause
Normal pattern.
Dirty or damaged air cap or
fluid nozzle.
Pressure too high for viscosity
of material being sprayed.
Dirty or distorted air horn holes. Clean and inspect air cap. If pattern is
Air getting into paint stream.
Solution
No action necessary.
Rotate air cap 180°.
If pattern follows air cap, problem is in
air cap (13). Clean and inspect. If pat-
tern is not corrected, replace air cap.
If pattern does not follow the air cap,
the problem is with the fluid nozzle.
Clean and inspect the nozzle. If the pat-
tern is not corrected, replace nozzle.
Reduce air pressure and increase
material viscosity.
Correct pattern by narrowing fan size
with fluid control valve (8).
not corrected, replace air cap.
Check if cup is empty and fill.
Tighten fluid nozzle (11).
Check and tighten needle packing
nut (17).
Check fluid nozzle (11) for damage.
312578H
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