DeVilbiss CVi Guide D'utilisation page 9

TROUBLESHOOTING (continued)
CONDITION
Fluid dripping or leaking from
bottom of cup
Runs and sags
Thin, sandy coarse finish drying
before it flows out
Thick, dimpled finish "orange peel"
ir leaks out front of aircap with
gun not triggered
ir leaks out around airvalve
spindle behind trigger with gun
not triggered
ir leaks out behind trigger with
gun triggered
C USE
Cup loose on gun.
Cup gasket worn or missing below cup.
Cup threads dirty.
Too much material flow.
Material too thin.
Gun tilted on an angle, or gun
motion too slow.
Gun too far from surface.
Too much air pressure.
Improper thinner being used.
Gun too close to surface.
ir pressure too low.
Improper thinner being used.
Material not properly mixed.
Surface rough, oily, dirty.
irvalve seat damaged or not installed
properly, or dirty.
irvalve spindle damaged or dirty.
Rear airvalve seal damaged or not
installed properly, or dirty.
irvalve spindle damaged or dirty.
Rear airvalve seal damaged or not
installed properly, or dirty.
Front airvalve seal damaged or not
installed properly, or dirty.
irvalve spindle damaged or dirty.
SB-2-658-G
CORRECTION
Tighten.
Replace cup gasket.
Clean.
djust gun or reduce fluid flow.
Mix properly or apply light coats.
Hold gun at right angle to work and
adapt to proper gun technique.
Check distance. Normally approx. 8".
Reduce air pressure and check spray pattern.
Follow paint manufacturer's mixing instrs.
Check distance. Normally approx. 8".
Too much material coarsely atomized.
Increase air pressure or reduce fluid flow.
Follow paint manufacturer's mixing instrs.
Properly clean and prepare.
Replace or clean as necessary.
Replace or clean as necessary.
Replace or clean as necessary.
Replace or clean as necessary.
First remove needle adjusting screw and fluid
needle spring. Trigger gun and feel behind
fluid needle to see if air is coming out rear of
gun. If air is felt, rear airvalve seal is leaking.
If air is not felt, front airvalve seal is leaking.
Replace or clean as necessary. lso check to
make sure airvalve spring is installed
correctly.
Replace or clean as necessary.
Page 9