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4.
GB
Check the laser beams. The laser is designed to self-level.
If the laser is tilted so much that it cannot self-level (> 4°),
the laser beam will flash.
• If the laser is tilted between 4° and 10°, the beams will
flash constantly.
• If the laser is tilted greater than 10°, the beams will
continually flash 3 times.
5.
If the laser beams fl ash, the laser is not level (or plumb) and
should NOT BE USED for determining or marking level or
plumb. Try repositioning the laser on a level surface.
6.
If ANY of the following statements are TRUE, continue with
the instructions for Checking Laser Accuracy BEFORE
USING THE LASER for a project.
• This is the first time you are using the laser (in case the
laser was exposed to extreme temperatures).
• The laser has not been checked for accuracy in a while.
• The laser may have been dropped.
Checking Laser Accuracy
The laser tools are sealed and calibrated at the factory.
It is recommended that you perform an accuracy check
prior to using the laser for the fi rst time (in case the laser
was exposed to extreme temperatures) and then regularly to
ensure the accuracy of your work. When performing any of the
accuracy checks listed in this manual, follow these guidelines:
• Use the largest area/distance possible, closest to the
operating distance. The greater the area/distance, the easier
to measure the accuracy of the laser.
• Place the laser on a smooth, fl at, stable surface that is level
in both directions.
• Mark the center of the laser beam.
Horizontal Line Accuracy - Tilt
Checking the tilt of the laser's horizontal line requires a fl at
vertical surface at least 30' (9m) wide.
1.
Place the laser as shown in Figure
ON.
2.
Press
3 times to display a horizontal line and a vertical
line.
3.
Aim the laser's vertical line at the fi rst corner or reference
point (Figure
G
10
#1 and turn the laser
G
#1).
4.
Measure half the distance across the wall (D
#1).
5.
Where the horizontal laser line crosses the halfway point
(D
), mark point P1 (Figure
1/2
6.
Rotate the laser to another corner or reference point
(Figure
#2).
G
7.
Where the horizontal laser line crosses the halfway point
(D
), mark point P2 (Figure
1/2
8.
Measure the vertical distance between P1 and P2 (Figure
#3).
G
9.
If your measurement is greater than the Allowable
Distance Between P1 & P2 for the corresponding
Distance (D1) in the following table, the laser must be
serviced at an authorized service center.
Distance (D1)
30' (9m)
40' (12m)
50' (15m)
Horizontal Line Accuracy - Level
Checking the level of the laser's horizontal line requires a fl at
vertical surface at least 30' (9m) wide.
1.
Place the laser at one end of the wall as shown in Figure
#1, and turn the laser ON.
2.
Press
once to display a horizontal line.
3.
Mark two points (P1 and P2) at least 30' (9m) apart along
the length of the laser's horizontal line on the wall (Figure
#1).
H
4.
Relocate the laser at the other end of the wall and align
the laser's horizontal line with point P2 (Figure
5.
Mark point P3 on the laser line near point P1 (Figure
#2).
6.
Measure the vertical distance between points P1 and P3
(Figure
#2).
H
) (Figure
1/2
#1).
G
#2).
G
Allowable Distance
Between P1 and P2
7/32" (5.5mm)
9/32" (7.2mm)
11/32" (9mm)
H
#2).
H
H
E
G
11
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