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Defective Pattern
A.
B.
C.Spitting,
irregular
or fluttering
spray
D.Split spray
pattern
E.Unatomized
or spattered
spray
F.Inadequate
air delivery
G.Excessive fog
H.Material keaking
from fluid inlet
of cup.
I.Material leaking
from nozzle
when trigger is
released
SPRAY PATTERNS
Likely cause
Dried material is clogging
side-port "A" and causing
side-port "B" to blow spray
towards theclogged side
Dried material at fluid
nozzle "C" restricts air flow
Loose air nozzle
Air pressure set too high
Fluid nozzle cracked or worn
Leak at thread of fluid nozzle
Leak at fluid needle
Needle packing worn out Insufficient
fluid in cup
Vent hole in container cover clogged
Air pressure too high
Material too heavy
Insufficient air pressure
Fluid pressure too high
Dried material on tip of fluid nozzle or
air jets of air cap
Air needle partially closed
Dried material in air jets or air cap
Obstruction in air line
Air pressure to high for
viscosity of fluid
Loose cup or foreign substances
on/between cup thread and
fluid inlet
Worn fluid needle
Dried material in tip of nozzle
Loose packing nut
Suggested Remedy
A
Soak side-ports in
thinner to clean clog.
DO NOT poke any
opening with hard objects.
B
Remove air nozzle.
C
Wipe off fluid tip using a
cloth soaked in thinner
or by soft brush
Fasten nozzle securely
Reduce air pressure
Tighten or replace
Tighten fluid nozzle
Tighten compression nut
assembly or replace
needle packing
Replace packing
Fill cup with fluid
Clean Out
Turn pattern control knob
clockwise to decrease fan width.
Turn fluid needle adjusting nut
counter-clockwise to increase
fluid flow
Thin material or use
larger orifice fluid nozzle set
Increase pressure to within limit
Reduce pressure
Clean
Oopen control knob
Clean
Remove obstruction
Reduce air pressure and/or
open fluid control knob
Tighten and clean or replace it
Replace Clean
Tighten needle packing nut by
turning counterclockwise
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