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ENGLISH
12
Power Button
The Power button is used to turn the laser unit on and off.
• To power ON the DW074LR or DW079LR/LG laser unit,
press the Power button once.
• To completely power OFF the DW074LR or DW079LR/LG
laser unit, press the power button for 3 sec.
Speed/Rotation Button
The speed button
3
is used to adjust the rotation speed of the
laser beam through its 4 preset speeds (150, 300, 600, and
1200 RPM).
Scan Mode Button
15˚/45˚/90˚
The scan mode button
4
is used to make the laser head
sweep back and forth, creating a short, bright laser line. This
short line is much brighter and more visible than when the unit
is in full rotation mode.
Using Scan Mode
• To enter Scan Mode, push and release the scan mode
button
4
. To cycle through the scan angles, continue to
press the button until you reach the desired angle.
• The direction of the scan zone can be controlled with the
arrow buttons
6
and
7
.
Slope Mode Button
• To activate Slope Mode press the slope mode button
2
.
• To return to self-leveling mode and re-engage full self-
leveling, press and hold the mode button
2
again.
Setting the Slope Direction
When Slope Mode is activated, the unit automatically engages
the X- Axis. This allows you to slope the laser in the direction of
the X-Axis, as indicated by the “gunsights” on the rollcage.
The LED light
11
or
12
indicates the current slope direction.
DW079LR/LG only: In certain situations, it may be desirable
to slope the laser in the Y-axis. The direction of Slope Mode
can be changed back and forth between the Y-axis and the
X-axis by pressing the X-Y axis button
5
. The selected axis is
identified by LED light
24
or
25
.
Setting the Amount of Slope
1. Turn on Slope Mode.
2. Select the desired axis.
3. Use the Arrow buttons (Fig.
B
,
6
and
7
) to tilt the laser
rotor head up and down.
- Each quick press of an Arrow button will move the slope
by 0.01º (1/16" @ 30ft. or 1.6mm @ 10m).
- If you press and hold an Arrow button between 2 sec-
10 sec, the slope will move from .0.01º/sec to 0.2º/sec.
- If you press and hold an Arrow button longer than 10
sec, the slope will move 0.2º/sec.
Arrow Buttons (Fig.
B
,
R
)
The arrow buttons (
B
6
and
7
) are used for different
functions depending on the operating mode of the laser unit.
• In Self-Leveling Horizontal Mode, the arrow buttons
rotate the direction of the laser beam clockwise or counter-
clockwise during rotation, or adjust the position of the laser
beam clockwise or counter-clockwise during Scan Mode.
• In Self-Leveling Vertical Mode, the arrow buttons rotate
the direction of the laser beam clockwise or counter-
clockwise during rotation, or adjust the position of the laser
beam clockwise or counter-clockwise during Scan Mode.
• In Slope Mode, the arrow buttons are used to tilt the
laser head.
Turning the Laser On (Fig.
E
,
B
)
1. Insert the fully charged 20V battery pack as shown in
Figure
E
.
2. Gently press the power button
1
to power ON the laser.
- The power LED indicator light
9
will illuminate
- Self-leveling mode is activated automatically and
the laser unit will self-level. Once the laser unit is
level, the beam will rotate once at 600 RPM in the
clockwise direction.
- After 10 sec., Hi Mode (Anti- Drift) is activated
automatically and the Hi LED
8
will illuminate.
3. Press the speed/rotation button
3
to adjust the rotation
speed. The direction can be changed using buttons
6
and
7
.
4. Press the Scan button
4
to set the laser to scan in 0°, 15°,
45°, or 90° degree mode.
If you turn ON Slope Mode, the Slope LED
(
12
)
will light. If using
X-axis leveling, the X-axis LED
(
24
)
will light, or if using Y-axis
leveling, the Y-axis LED
(
25
)
will light instead.
Calibrating the Laser (Fig. O, P)
Field calibration checks should be done frequently. This section
provides instructions for performing simple field calibration
checks of your
DeWALT
Rotary Laser. Field calibration checks
do not calibrate the laser. That is, these checks do not correct
errors in the leveling or plumbing capability of the laser. Instead,
the checks indicate whether or not the laser is providing a
correct level and plumb line. These checks cannot take the
place of professional calibration performed by a
DeWALT
service center.
DW074_DW079 User Manual - NA - TRANSLATED.indd 12 5/17/2018 2:05:33 PM
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