Spray Tip Selection; Spray Tip Application Recommendations; Spray Techniques; Line Width Adjustment - Graco GM 5000 Instructions And Parts List

Spray Tip Selection
Spray Tip Application Recommendations
Other Applications
I
I
1
sport
court,
I I
Lineal FeeUMlnute
I
2"
wide line
12" wide
line,
1
gun
Crosswalk,
Airport,
Stencils
General Stationary
24"
wide line,
two
guns
Painting
Tips can be used with
two
guns.
t
Supplied with the Line Lazer.
115,117
623,625
621,
721
417', 419*
51 7t
Spray Techniques
These spray techniques discuss how to use and adjust
the features of the Line Lazer. You must also consider
operator technique, job site conditions and weather.
1.
Use water rather than paint to practice spraying
technique 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.
13.
To reduce the risk of a fluid injection injury, always
and engage the gun trigger safely latch@) before
disengage the remote trigger cable to the gun@)
gun arms. See page 22.
moving or adjusting the spray tip guards, guns or
3. Use the lowest pressure necessary for good atom-
ization. High pressure may cause excessive paint
buildup and overspray.
4. Start moving the Line Lazer before triggering the
gun to prevent a build up of paint at the beginning
of the line. Release the trigger a second before stop-
ping the Line Lazer. 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 affect the straight-
ness of a line, including uneven surfaces, potholes,
rocks and other debris and a clogged or worn spray
tip. See page 16 for how to clear or change a spray
tip.
7. T o minimize the effect of bumps on the spray pat-
front wheel axis.
tern, keep the spray tip guard centered with the
8. The spray tip size and the rate at which you move
faster you move the unit, the larger the spray tip ori-
the unit aifect the coating thickness. Generally, the
fice should be. The fan width of the spray tip indi-
the chart in Fig. 12 for spray tip application recom-
cates approximately how wide the line will be. See
mendations.
9. Position the guns to suit your requirements. See the
section below and pages
18
to 20.
10. Traffic paints may be formulated for air spray, airless
air spray formulas are pre-thinned, and will work
spray or have no formulation description.Generally,
well in the Line Lazer, but there may be more over-
spray. 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 pave-
ment.
11. If you use fast-draying traffic paint
on a hot day,
vent skin from forming on it.
float compatible solvent on top
of
the paint to pre-
Line Width Adjustment
spray tip to the spraying surface, spray tip fan pattern,
Several factors affect line width: vertical distance of the
clogged spray tip.
using one or two guns, paint pressure, and a worn or
The typical conditions for a
4
in. wide line are: 319 size
from the lowest vertical position, and just enough pres-
Line Lazer 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.
T o decrease line width, lower the gun (if possible) or use
a tip with a narrower fan pattern.
wider fan pattern, or use
two
guns.
To increase line width, raise the gun, or use
a tip with a
308-105
17