DeVilbiss AG361 Service Manual page 17

TROUBLESHOOTING SPRAY PERFORMANCE
CONDITION
Heavy top or bottom pattern.
Heavy right or left
side pattern.
Remedies for the top-heavy, bottom-heavy, right-heavy and left-heavy patterns.
Determine if the obstruction is on the air cap or the fluid tip. Do this by making a test spray pattern. Then, rotate
the cap one-half turn and spray another pattern. If the defect is inverted, obstruction is on the air cap. Clean the
air cap as previously instructed. Also check for dried paint just inside the cap centre hole opening, remove by
washing with solvent.
If the defect is not inverted, it is on the fluid tip. Clean tip. If problem persists, renew tip.
SB-E-2-642 R3.1
CAUSE
Material build-up on air cap,
plugged horn holes, centre holes or
jets.
Material build-up on fluid tip exterior
or partially plugged fluid tip.
Fluid tip or cap dirty or damaged.
Left or right side horn holes plugged.
Dirt or damage on left or right side
of fluid tip exterior.
17/24
CORRECTION
Soak cap or tip in suitable solvent
and thoroughly clean.
Replace fluid tip or air cap if
necesarry.
Replace fluid tip or air cap if
necesarry.
Soak cap or tip in suitable solvent
and thoroughly clean.
Replace fluid tip or air cap if
necesarry.
EN