Husky HDS550 Manual De Instrucciones Y Lista De Piezas página 3

Operating Instructions and Parts Manual
Preparation
(cont.)
Figure 2 - adjustment on Spray Gun
PaTTern aDjUSTMenT
1. Adjust air pressure to the spray gun
according to the recommendations
supplied with the spray material.
This air pressure usually falls
between 40 - 60 PSI. Adjust air
pressure with the trigger pulled.
2. Turn fluid control knob fully clock-
wise until closed.
3. Trigger a short burst while turning
fluid control knob counterclockwise.
Observe the spray pattern on the tar-
get and adjust the fluid control knob
until the desired pattern (atomiza-
tion) is obtained.
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.
Paint too
Correct
Paint too
fine
Figure 3 - Pattern consistency
(atomization)
If the spray is too coarse (spitting globs),
reduce the amount of material with the
fluid control knob or thin the paint.
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.
Fluid Control
Knob
Operation
1. Begin spray-
ing. Always
keep the gun at
right angles to
the work. (See
Figure 4.)
Keep the nozzle
about 6 to 9 inches
from the work
surface through-
out 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 insuffi-
cient coating at each end (See Figure 5).
Thin coat
coarse
Figure 5
2. "Trigger" the gun properly. Start
the gun moving at the beginning
of the stroke BEFORE SQUEEZING
THE TRIGGER and release the trigger
BEFORE STOPPING GUN MOVEMENT
at the end of the stroke. This pro-
cedure will "feather" (blend) each
stroke with the next without show-
ing overlap or unevenness).
WaTer/OIl In cOMPreSSeD aIr
Failure to install appropriate water/oil removal
equipment may result in damage to machinery or
workpiece.
6 - 9"
Figure 4
Heavy coat
Thin coat
3
6 - 9"
Pull
Trigger
Start
Stroke
Figure 6
3. The amount of paint being applied
can be varied by the speed of the
stroke, distance from the surface and
adjustment of the fluid control knob.
4. Overlap strokes just enough to
obtain an even coat. nOTe: Two
thin coats of paint will yield better
results and have less chance of runs
than one heavy layer.
5. Use a piece of cardboard as a shield
to catch overspray at the edges of
the work to protect other surfaces.
Use masking tape to cover other
areas if needed.
Figure 7
HDS550
Release
Trigger
End
Stroke