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