Evercraft Air Tools 776-3703 Manuel page 6

Pistolet pulvérisateur à siphon pleine grandeur et godet
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SPRAY PATTERN/
CONDITION
Spitting
Improper spray pattern.
Unable to get round spray.
Will not spray.
Fluid leakage from
packing nut.
Dripping from fluid tip.
Thin, sandy coarse finish.
Thick, dimpled finish
resembling orange peel.
776-3703
776-3703_Manual_091310.indd 6
TrOublEshOOTiNg
PROBLEM
One side of nozzle wing is
clogged.
A.) Loose air nozzle.
B.) Material around outside of
air nozzle has dried.
A.) Atomization air pressure is set
too high.
B.) Trying to spray a thin material
in too wide a pattern.
A.) Packing around needle valve
is dried out.
B. Fluid nozzle loosely installed,
or dirt between nozzle
and body.
C.) Loose or defective swivel nut
on siphon cup.
A.) Gun improperly adjusted.
B.) Dirty air cap.
C.) Fluid tip obstructed.
D.) Sluggish needle.
Fan adjustment screw not
seating properly.
A.) No air pressure at gun.
B.) Fluid pressure too low with
internal mix cap and
pressure tank.
C.) Fluid control screw not
open enough.
D.) Fluid too heavy.
A.) Packing nut loose.
B.) Packing worn or dry.
A.) Dry packing.
B.) Sluggish needle.
C.) Tight packing nut.
D.) Worn fluid nozzle or needle.
A.) Gun held too far from surface.
B.) Atomization pressure set
too high.
Gun held too close to surface.
6
SOLUTION
Soak nozzle in solvent to loosen clog, then blow air
through until clean. To clean orifices use a broom straw
or toothpick. Never try and detach dried material with
sharp tool.
A.) Tighten air nozzle.
B.) Take off air nozzle and wipe off fluid tip,
using rag moistened with thinner.
A.) Reduce air pressure.
B.) Increase material control by turning fluid
control screw to left, while reducing spray
width by turning spray width adjustment
screw to right.
A.) Back up knurled nut, put a few drops of
machine oil on packing, re-tighten nut.
B.) Take off fluid nozzle, clean rear of nozzle and
seat in gun body. Replace nozzle and tighten.
C.) Tighten or change out swivel nut.
A.) Readjust gun. Follow instructions carefully.
B.) Clean air cap.
C.) Clean.
D.) Lubricate.
Clean or replace.
A.) Check air supply and air lines.
B.) Increase fluid pressure at tank.
C.) Open fluid control screw.
D.) Thin material or change to pressure feed.
A.) Tighten, but not so tight as to grip needle.
B.) Replace packing or lubricate.
A.) Lubricate.
B.) Lubricate.
C.) Adjust.
D.) For pressure feed, replace with new fluid nozzle
and needle.
A.) Move gun closer to surface.
B.) Adjust atomization pressure.
Move gun further from surface.
09/13/10
9/13/10 4:41:38 PM

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