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Troubleshooting
Problem
Normal pattern.
Right
Dirty or damaged air cap or fluid
nozzle.
Wrong
Heavy top
or bottom
pattern
Pressure too high for viscosity of
material being sprayed.
Wrong
Split pattern
Dirty or distorted air horn holes.
Wrong
Gun spitting
Air getting into paint stream.
Will not spray
Cup is empty.
Fluid adjustment knob (8) turned
too far clockwise.
Excessive air
Loose fluid nozzle (11).
blowing back
Damaged fluid nozzle seal (21).
312106F
Cause
Solution
No action necessary.
Rotate air cap 180°.
If pattern follows air cap, problem is in air
cap (13). Clean and inspect. If pattern 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 pattern is
not corrected, replace nozzle.
Reduce air pressure and increase
material viscosity.
Correct pattern by narrowing fan size with
spray width adjustment knob (8).
Clean and inspect air cap. If pattern is 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.
Fill cup.
Adjust knob (8) counterclockwise.
Tighten fluid nozzle (11).
Replace seal (21).
Troubleshooting
7
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