308-68512
Spray
T
echniques
These spray techniques discuss how to use and adjust
the
features of the LineLazer
. Y
ou must also consider op
-
erator
technique, job site conditions and weather
.
1. Use
water rather than paint to
practice spraying tech
-
nique and positioning the gun. Slight readjustment
may
be required when switching from water to paint.
2. Be sure the RAC IV T ip Guard is always parallel to
the
ground
and the “wings” of the spray tip guard face
the
front and back of the unit, as shown in Fig. 4.
WARNING
T
o reduce the risk of a fluid injection injury
, always
disengage the remote trigger cable to the gun and
engage the gun trigger safety latch before moving
or adjusting the spray tip guard, gun, or gun arm.
3. Use the lowest pressure necessary for good atom-
ization. High pressure may cause excessive paint
buildup
and overspray
.
4. Start
moving the LineLazer before triggering the
gun
to
prevent a build up of paint at the beginning of the
line. Release the trigger a second before stopping
the
LineLazer. Move at an even rate of speed.
5. Always
check your gun adjustments on cardboard or
paper before starting each job. When painting curbs,
paint
first in an area that is less frequently seen.
6. Keep in mind that many factors af fect the straight-
ness of a line, including uneven surfaces, potholes,
rocks
and other debris and a clogged or worn
spray
tip.
See manual
308–235
for
how to clear or change
a
spray tip.
7. To
minimize the ef
fect of bumps on the spray pattern,
keep the spray tip guard centered with the front
wheel
axis.
8. The
spray tip size and the rate at which you move the
unit
af
fect the
coating thickness. Generally
, the fast
-
er you move the unit, the larger the spray tip orifice
should
be.
The fan width of the spray tip indicates ap
-
proximately
how wide the line will be.
9. Position the gun to suit your requirements. See the
section
below and pages 13 to 14.
10. Traffic
paints
may be formulated for air spray
, airless
spray or have no formulation description.Generally,
air
spray formulas are pre–thinned, and will work
well
in the LineLazer, but there may be more overspray.
Non-air spray formulas tend to deliver more lineal
feet
of line per gallon with less overspray
, since they
are
less easily absorbed into the pavement.
11. If
you use fast–draying traf
fic paint on a hot day
, float
compatible
solvent on top of the paint to prevent skin
from
forming on it.
Line Width Adjustment
Several factors affect line width: vertical distance of the
spray tip to the spraying surface, spray tip fan pattern,
paint
pressure, and a worn or clogged spray tip.
The typical conditions for a 4 in. wide line are: 217 size
LineLazer Tip (supplied), the gun positioned one inch
from the lowest vertical position, and just enough pres-
sure to atomize the paint. Depending on the fan pattern
of the spray tip, the gun can paint 2 to 12 in. wide lines.
To
decrease line width
, lower the gun (if
possible) or use
a
tip with a narrower fan pattern.
To increase line width, raise the gun, or use a tip with a
wider
fan pattern.
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