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Spray Tip
Selection
Spray
Tip
Application
Recommendations
Other
Applications
-
LinealFeetlMinute
(rate et which unlt
Is
moved)
Based on
4"
wide line and
15
mils of
paint
sport court,
2" wide
line
115, 117
Crosswalk,
I
12"
wide line,
1
gun 621,
Application
Airport,
Parking
Lot
Lines
623,625
400
352
308
264
220
184
144
120
4"
wide
24"
wide
line, two guns 721
224
223
221'
LLT-319't
217
6"
wide
231
228
227
225
223
221'
4-6" wide
Stencils
41 7',
41
9 '
325
323
321'
3 1 9 '
317
Long Lines,
Cuhs
419'
417'
General Stationary
Painting
517t
Tips can be
used
with two guns.
t Supplied with the Line Lazer.
Spray Techniques
These spray techniques discuss how to use and adjust
the features of the Line Lazer. You 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 guns.
2. Be sure the RAC IV Tip 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.
15.
To reduce the
r i s k
of a fluid injection injury, always
disengage the remote trigger cable to the gun(s)
and engage the gun trigger safety latch(es) before
moving or adjusting the spray tip guards, guns, or
gun a n s . See Page 21.
3.
4.
5.
6 .
7 .
16
Use the lowest pressure necessary for good atom-
ization. High pressure may cause excessive paint
buildup and overspray.
Start moving the tine Lazer 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 Line Lazer. Move at an even rate
of speed.
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.
Keep in mind that many factors affect the straight-
ness of a line, including uneven surfaces, potholes,
tip. See page
15
for how to clear or change a spray
rocks and other debris and a clogged or worn spray
tip.
To minimize the effect of bumps on the spray pattern,
wheel axis.
keep the spray tip guard centered with the front
308-082
8.
9.
The spray tip size and the rate at which you move the
er you move the unit, the larger the spray tip orifice
unit affect the coating thickness. Generally, the fast-
proximately how wide the line will be. See the chart
should
be.
The fan width of the spray tip indicates ap-
in Fig.
14
for spray tip application recommendations.
Position the guns to suit your requirements. See the
section below and pages 17 to 19.
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 Line Lazer, 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 traffic 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,
us-
ing one or two guns, paint pressure, and a worn or
clogged spray tip.
The typical conditions for a 4 in. wide line are:
319
size
from the lowest vertical position, and just enough pres-
Line L a m Tip (supplied), the gun positioned one inch
sure to atomize the paint. Depending on the fan pattern
of the spray tip, use one gun to paint
2
to
12
in. wide lines,
and
two
guns to paint 12 to 24 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
wider fan pattern, or use two guns.
,
raise the gun, or use a tip with a
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