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