Atomising air pressure too low.
Intermittent or 'fluttering'
spray fan.
Thin to correct consistency.
Increase fluid flow by changing fluid
tip size, opening needle control knob
or increase fluid pressure on
pressure feed container.
Too much air for fluid quanitity used.
Fluid tip not seated correctly in gun
head.
Remove fluid tip, clean components,
check cone seating on tip and gun
for damage or contamination.
Turn out counter clockwise to
achieve correct pattern.
Not enough material flow.
Reduce air pressure by rotating
pattern control valve clockwise.
Partially obstructed fluid passage or
hose.
Reduce fluid flow by turning fluid
needle adjusting screw clockwise.
Reduce fluid pressure.
Pattern adjustment valve set too low.
Reduce input air pressure.
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