DeVilbiss FAC752-3 Manual de usuario descargar pdf (Pagina 8)

Page 8 SB-2-001-H

TROUBLESHOOTING

CONDITION CAUSE CORRECTION

Heavy top or bottom pattern Horn holes plugged. Clean. Ream with non-metallic

point.

Obstruction on top or bottom of Clean.

ﬂuid tip.

Cap and/or tip seat dirty. Clean.

Heavy right or left Left or right side horn holes plugged. Clean. Ream with non-metallic

side pattern point.

Dirt on left or right side of ﬂuid tip. Clean.

Remedies for the top-heavy, bottom-heavy, right-heavy and left-heavy patterns:

1) 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.

2) If the defect is not inverted, it is on the ﬂuid tip. Check for a ﬁne burr on

the edge of the ﬂuid tip. Remove with #600 wet or dry sand paper.

3) Check for dried paint just inside the opening. Remove paint by washing

with solvent.

Heavy center pattern Fluid pressure too high for atomization Balance air and ﬂuid pressure.

air (pressure feed). Increase spray pattern width with

spreader adjustment valve.

Material ﬂow exceeds air cap's capacity. Thin or lower ﬂuid ﬂow.

Atomizing pressure too low. Increase pressure.

Material too thick. Thin to proper consistency.

Split spray pattern Fluid adjusting knob turned in too far. Back out counterclockwise to

achieve proper pattern.

Atomization air pressure too high. Reduce at air regulator.

Fluid pressure too low (pressure feed only).

Increase ﬂuid pressure.

Spreader adjusting valve set too high. Adjust by turning in clockwise.

Suction And Pressure Feed

Jerky or ﬂuttering spray

*Loose or damaged ﬂuid tip/seat. Tighten or replace.

Material level too low. Reﬁll.

Container tipped too far. Hold more upright.

Obstruction in ﬂuid passage. Backﬂush with solvent.

Loose or broken ﬂuid tube or ﬂuid Tighten or replace.

inlet nipple.

Dry or loose ﬂuid needle packing nut. Lubricate or tighten.

*Most common problem.

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DeVilbiss FAC752-3 Manual de usuario Pagina 8