DeVilbiss FAC752-3 Manuale Utente Scaricare il pdf (Pagina 10)

Page 10 SB-2-001-H

CONDITION CAUSE CORRECTION

Dry Spray Air pressure too high. Decrease air pressure.

Material not properly reduced Reduce to proper consistency.

(suction feed).

Gun tip too far from work surface. Adjust to proper distance.

Gun motion too fast. Slow down.

Gun out of adjustment Adjust.

Fluid leaking from Packing nut loose. Tighten, do not bind needle.

packing nut

Packing worn or dry Replace or lubricate.

Fluid leaking or dripping Packing nut too tight Adjust

from front of pressure

feed gun Dry packing. Lubricate.

Fluid tip or needle worn or Replace tip & needle with matched

damaged sets.

Foreign matter in tip. Clean.

Fluid needle spring missing or Replace.

broken.

Wrong size needle or tip. Replace.

Needle bound by misaligned Tap sprayhead perimeter with a

sprayhead (MBC guns only). wooden mallet. Retighten lock bolt.

Runs and sags Too much material ﬂow. Adjust gun or reduce ﬂuid pressure.

Material too thin. Mix properly or apply light coats.

Gun tilted on an angle. Hold gun at right angle to work and

adapt to proper gun technique.

Thin, sandy coarse ﬁnish Gun too far from surface. Check distance. Normally 6-8" - HVLP,

drying before it ﬂows out 8-10" - conventional.

Too much air pressure. Reduce air pressure and check

spray pattern.

Improper thinner being used. Follow paint manufacturer's

mixing instructions.

Thick, dimpled ﬁnish Gun too close to surface. Check distance. Normally 6-8" - HVLP,

"orange peel". Too much 8-10" - conventional.

material coarsely

atomized Air pressure too low. Increase air pressure or reduce

ﬂuid pressure.

Improper thinner being used. Follow paint manufacturer's

mixing instructions.

Material not properly mixed. Follow paint manufacturer's

mixing instructions.

Surface rough, oily, dirty. Properly clean and prepare.

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DeVilbiss FAC752-3 Manuale Utente Pagina 10