Husky HDS790 Instructions D'utilisation Et Manuel De Pièces page 4

Operating Instructions and Parts Manual
Preparation (continued)
4. Trigger a short burst while turning
fluid control knob counterclockwise.
Observe the spray pattern on the
target and adjust the fluid control
knob until the desired pattern
(atomization) is obtained (See Figure
6).
Paint too Correct
fine
Figure 6 - Pattern consistency
(atomization)
If the spray is too fine (excessive
overspray), caused by too much air for
the amount of paint being sprayed,
reduce the air pressure or open the fluid
control to spray more material.
If the spray is too coarse (spitting globs),
reduce the amount of material with the
fluid control knob or thin the paint.
5. The fluid control knob can be used
to finely adjust pattern consistency.
Before spraying the workpiece, practice
a few minutes on a cardboard target to
ensure the pattern size and consistency
are set correctly.
All compressor pumps discharge some condensed water, oil or contaminates
with the compressed air.
IMPORtant: This condensation will cause "fish eyes" to appear in the paint
job. Install appropriate water/oil removal equipment and controls as necessary
for the intended application. Locate filter as close to spray gun as possible.
workpiece.
Paint too
coarse
Fluid Tip (Nozzle)
Figure 7 - Gravity Feed Spray Gun
Operation
1. Begin spraying.
Always keep
the gun at right
angles to the
work (See
Figure 8).
WateR/OIL In cOMPReSSeD aIR
Failure to install appropriate water/oil removal
equipment may result in damage to machinery or
Air Cap
Fluid Packing Nut
Trigger
6 to 9
inches
Figure 8
4
Vent Hole
Cup
Pattern Control Knob
Fluid Control Knob
Air Valve Packing Nut
1/4 inch NPS
Air Inlet Fitting
2. Keep the nozzle about 6 to 9 inches
from the work surface throughout
the stroke and always keep the gun
in motion while spraying. Stopping
gun movement in mid-stroke will
cause a build up of paint and result
in runs. Do not fan the gun from
side to side while painting. This
will cause a build-up of paint in
the center of the stroke and an
insufficient coating at each end (See
Figure 9).
Thin Heavy
Coat Coat
Figure 9
Thin
Coat