Replace with new fluid tip.
Excessive fluid tip wear.
Open fluid needle adjustment
knob.
Check air supply and air line.
Fluid needle adjustment knob not
open enough.
Check fluid tip/needle selection
chart and fit correct item.
Gun spits paint when triggering
on and off.
Unable to get round spray
Remove, check components for
damage and refit correctly.
Fluid tip/needle leakage.
Paint build-up on fluid tip.
Fluid tip not fitted correctly in
gun head.
Fluid tip/needle leakage.
Check for damage or blockage.
Replace with new air cap.
Gradual build-up of bounce-back
on gun head.
Check for damage or blockage.
Fluid tip not fitted correctly in
gun head.
TROUBLESHOOTING MECHANICAL PERFORMANCE
Fluid tip or sprayhead incorrectly
fitted.
Paint build-up on air cap.
Gun spits paint when triggering
on due to paint build-up inside air
cap between spraying operations.
Incorrect needle fitted to gun.