SB-2-616-B Page 7
TROUBLESHOOTING (continued)
CONDITION
CAUSE
CORRECTION
Fluid leaking from packing nut
Packing nut loose.
Tighten, do not bind needle.
Packing worn or dry.
Replace or lubricate.
Fluid leaking or dripping from
Packing nut too tight.
Adjust
front of gun
Dry packing.
Lubricate.
Fluid tip or needle worn or damaged.
Replace tip & needle.
Foreign matter in tip.
Clean.
Fluid needle spring broken.
Replace.
Wrong size needle or tip.
Replace.
Runs and sags
Too much material flow.
Adjust gun or reduce fluid pressure.
Material to thin.
Mix properly or apply light coats.
Gun tilted on an angle or gun motion too slow.
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".
drying before it flows out
Too much air pressure.
Reduce air pressure and check spray pattern.
Improper thinner being used.
Follow paint manufacturer's mixing instructions.
Thick, dimpled finish "orange
Gun too close to surface.
Check distance. Normally 6-8".
peel".
Too much material coarsely atomized.
Turn in fluid adjusting screw or reduce fluid
pressure or change to a smaller tip size.
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.
