Page 8

SB-2-540

 

 

TROUBLESHOOTING (continued)

 

 

 

 

 

CONDITION

CAUSE

CORRECTION

 

 

 

Fluid dripping or leaking from

Cup loose on gun.

Tighten.

bottom of cup

Cup gasket worn or missing below cup.

Replace cup gasket.

 

 

Cup threads dirty.

Clean.

 

 

 

Runs and sags

Too much material flow.

Adjust gun or reduce fluid flow.

 

 

Material too thin.

Mix properly or apply light coats.

 

 

Gun tilted on an angle, or gun

Hold gun at right angle to work and

 

 

motion too slow.

adapt to proper gun technique.

 

 

 

Thin, sandy coarse finish drying

Gun too far from surface.

Check distance. Normally approx. 8".

before it flows out

Too much air pressure.

Reduce air pressure and check spray pattern.

 

 

Improper thinner being used.

Follow paint manufacturer's mixing instrs.

 

 

 

Thick, dimpled finish "orange peel"

Gun too close to surface.

Check distance. Normally approx. 8".

 

 

 

Too much material coarsely atomized.

 

 

Air pressure too low.

Increase air pressure or reduce fluid flow.

 

 

Improper thinner being used.

Follow paint manufacturer's mixing instrs.

 

 

Material not properly mixed.

Properly clean and prepare.

 

 

Surface rough, oily, dirty.

 

 

 

 

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Image 8
DeVillbiss Air Power Company SB-2-540 operation manual Condition Cause Correction