DeVilbiss AG361 - Page 15

EN
Unable to get round spray
Fluid tip or sprayhead incorrectly
fitted.
Gun spits paint when triggering on
due to paint build-up inside air cap
between spraying operations.
Fluid tip not fitted correctly in gun
head.
Tighten.
Damaged air cap holes.
Excessive needle wear.
Replace with new needle.
GENERAL FAULTS
Excessive fluid tip wear.
Replace with new fluid tip.
Remove, check components for
damage and refit correctly.
Open fluid needle adjustment knob.
Check air supply and air line.
CORRECTION
Will not spray.
Fluid needle adjustment knob not
open enough.
TROUBLESHOOTING MECHANICAL PERFORMANCE
No air pressure at gun.
Gradual build-up of bounce-back on
gun head.
Thoroughly clean.
When removing air cap from retaining ring, do not remove the ring seat from the retaining ring. Damage to the
parts may occur. Simply wipe parts clean and reassemble with new or clean air cap.
Paint build-up on air cap.
Replace with new air cap.
Check for damage or blockage.
Fluid tip/needle leakage.
Paint build-up on fluid tip.
Incorrect needle fitted to gun.
Check fluid tip/needle selection
chart and fit correct item.
Fluid tip not fitted correctly in gun
head.
Tighten.
Gun spits paint when triggering on
and off.
CAUSE
Fluid tip/needle leakage.
Check for damage or blockage.
SB-E-2-642 R3.1
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