Troubleshooting; Spray Pattern - DeVilbiss AGMDPRO Serie Manual De Operación

Possible Problems in Operation
CONDITION

Spray Pattern

Heavy top or
bottom pattern.
Heavy right or left
side pattern.
Remedies for the top-heavy and bottom-heavy patterns:
1. Determine if the obstruction is on the air cap or the fluid nozzle. 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.
2. If the defect is not inverted, it is on the fluid nozzle. Clean nozzle. If problem persists, renew nozzle.
Heavy centre
pattern.
Split spray
pattern.
Jerky or
fluttering spray.
Fluid Starved spray pattern.
© 2013 Finishing Brands UK Ltd.

Troubleshooting

CAUSE
Horn holes plugged.
Obstruction on top or bottom of fluid
nozzle.
Cap and/or nozzle seat dirty.
Left or right side horn holes plugged.
Dirt on left or right side of fluid nozzle.
Fan Air pressure set too low.
Material too thick.
Fluid Flow set too low.
Fan Air pressure set too high.
Material level too low.
Obstruction in fluid passage.
Inadequate material flow.
13
CORRECTION
Clean with non-metallic point.
Clean.
Clean.
Clean with non-metallic point.
Clean.
Increase Fan Air pressure to achieve
correct pattern.
Thin to correct consistency.
Increase Fluid Flow to achieve
correct pattern.
Decrease Fan Air pressure to
achieve correct pattern.
Refill.
Back flush with solvent.
Increase Fluid Flow.
Change to larger fluid nozzle size.
Check hose for blockage.