Filter
Top Products
5 309990C
MPFHVLP 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. 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.
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. If pattern is not corrected, replace air cap.
Will not spray. Fluid supply empty. Fill fluid supply.
a. Fluid pressure too high for viscosity of
material being sprayed.
a. Reduce fluid pressure.
b. Air pressure too low. b. Increase air 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