DeWalt DCE822D1G18, Manual

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Turning the Laser On
The Place the laser on a flat level surface. Slide the
Power/Transport Lock switch
C 2
to the right to
unlock/turn ON the laser.
Button Displays
• Press once to display a horizontal laser
line (Figure
C 4
).
• Press a second time to display a
vertical laser line (Figure
C 5
).
• Press a third time to display a
horizontal line and a vertical line
(Figure
C 6
).
• Press a fourth time to stop displaying
laser lines.
DCLE34220
DCLE34520
1b
1a
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3f
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• Press once to display dots above and
below the laser (Figure
C 7
).
• Press a second time to stop
displaying dots.
You can use and /
1b
1a
3a
3b
3c
3d
3e
3f
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together to display laser
dots and lines. For example, if you press three
times and /
1b
1a
3a
3b
3c
3d
3e
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x1
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once, the laser will display cross
lines and two dots (Figure
C 8
).
When the laser is not in use, slide the Power/Transport
Lock switch to the left in the OFF/Locked position. If
the Power/Transport Lock switch is not placed in the
lock position, all 4 LEDs will continuously flash on the
Battery Meter.
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 first 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, flat, stable surface
that is level in both directions.
• Mark the center of the laser beam.
Field Calibration Check
Checking Accuracy – Horizontal Beam,
Scan Direction (Fig. D)
Checking the horizontal scan calibration of the
laser requires two walls at least 30’ (9 m) apart. It
is important to conduct a calibration check using
a distance no shorter than the distance of the
applications for which the tool will be used.
1. Attach the laser to a wall using its pivot bracket.
Make sure the laser is facing straight ahead.
2. Turn on the laser’s horizontal beam and pivot the
laser approximately 45˚ so that the right-most end
of the laser line is striking the opposing wall at a
distance of at least 30’ (9 m). Mark the center of
the beam (a).
3. Pivot the laser approximately 90˚ to bring the
left-most end of the laser line around to the mark
made in Step 2. Mark the center of the beam (b).
4. Measure the vertical distance between the marks.
• If the measurement is greater than the values
shown below, the laser must be serviced at an
authorized service center.
Distance
Between Walls
Allowable Distance
Between
a
and
b
10.0 m 3.0 mm
12.0 m 3.6 mm
15.0 m 4.5 mm