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Troubleshooting
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Troubleshooting
Problem Cause Solution
One side of air cap (1) dirty or
clogged.
Clean air cap orifices. See page 6. Blow
air through orifices until clean. If air cap
holes are damaged, replace air cap.
a. Loose air cap (1). a. Tighten.
b. Dried or damaged air
cap (1) or fluid nozzle (2).
b. Rotate air cap 180°.
If pattern follows air cap, problem is
in air cap. Clean and inspect. See
page 6. 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 6. If the pattern is not corrected,
replace nozzle.
a. Atomization air pressure
set too high.
a. Reduce air pressure.
b. Spraying a thin material in
too wide of a pattern.
b. Increase material control by turning
fluid adjustment knob (8-2) counter-
clockwise while reducing spray width
by turning pattern adjustment
knob (5) clockwise.
Or increase material viscosity.
Air getting into paint stream.
a. Cup almost empty. a. Fill cup.
b. Dry needle packing (3-1,
3-2).
b. Loosen packing seat and put a few
drops of machine oil on packing (3-1,
3-2). Retighten seat (4).
c. Fluid nozzle (2) too loose. c. Tighten.
d. Dried material between
nozzle (2) and gun body.
d. Clean nozzle and front of gun. See
page 6.
e. Damaged needle seal. e. Replace seal. See page 8.
Other spray pattern
problems.
a. Gun not properly adjusted. a. See page 5.
b. Sluggish needle (10). b. Clean and lubricate.
Unable to get round
pattern.
Pattern adjustment knob (5)
not seating properly.
Clean or replace knob.
Will not spray. a. No air pressure at gun. a. Check air supply and air lines.
b. Cup empty. b. Fill cup.
c. Fluid adjustment knob (8-2)
turned too far clockwise.
c. Adjust knob (8-2) counterclockwise.
d. Fluid too thick for gravity
feed.
d. Thin material.
Spitting