5
310799B
COBALT HVLP SIPHON/PRESSURE FEED SPRAY GUN
Troubleshooting
WARNING
Follow
Pressure Relief Procedure
, page 3, before troubleshooting or servicing. Read warnings, page 2.
Problem
Cause
Solution
Normal pattern
No action necessary
Dirty or damaged air cap or fluid nozzle.
Rotate air cap 180°.
If pattern follows air cap,
problem is in air cap. Clean and
inspect. See page 4. 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. See page 4. If the
pattern is not corrected, replace nozzle.
Pressure too high for viscosity of material
being sprayed.
a. Reduce air pressure.
b. Increase material viscosity
c. Correct pattern by narrowing fan size with spray width
adjustment knob.
Dirty or distorted air horn holes.
Rotate air cap 180°.
If pattern follows air cap,
problem is in air cap. Clean and
inspect. See page 4. If pattern is not corrected, replace air
cap.
Will not spray.
a. Cup is not tight
a. Tighten cup.
b. Cup or fluid supply empty.
b. Fill.
c. Fluid adjustment knob (15) turned too far
clockwise.
c. Adjust knob (15) to the counterclockwise.
a. Fluid pressure too high for viscosity of
material being sprayed.
a. Reduce air pressure.
b. Air pressure too low.
b. Increase fluid pressure.
c. Gun held too close to surface.
c. Hold gun about 6-8 inches (150-200 mm) from surface.
Right
Wrong
Heavy top or
bottom pattern
Wrong
Split pattern
Wrong
Wrong
Heavy pattern or
orange peel
