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User Manual
Once the ceiling mount is secured, its steel plate provides a
G
surface to which the magnetic pivot bracket
can be attached.
The position of the laser can then be fine-tuned by sliding the
magnetic pivot bracket up or down on the wall mount.
Using the Lasers with Accessories
The lasers are equipped with 1/4" - 20 and 5/8" - 11
female threads on the bottom of the unit. This thread is to
accommodate current or future DeWALT accessories. Only use
DeWALT accessories specified for use with this product. Follow
the directions included with the accessory.
CAUTION:
The use of any other accessory not recommended for use
with this tool could be hazardous.
If you need any assistance in locating any accessory, please
contact your nearest DeWALT service center or go to
www.dewalt.com on the Internet.
Leveling the Lasers
As long as the laser is properly calibrated, the laser is self-
leveling. Each laser is calibrated at the factory to find level as
long as it is positioned on a flat surface within average ± 4° of
level. No manual adjustments are required.
Maintenance
• To maintain the accuracy of your work, check the laser often to
make sure it is properly calibrated. See Field Calibration Check.
• Calibration checks and other maintenance repairs may be
performed by DeWALT service centers.
• When not in use, store the laser in the kit box provided. Do not
store your laser at temperatures below -5˚F (-20˚C ) or above
140˚F (60˚C).
• Do not store your laser in the kit box if the laser is wet. The laser
should be dried first with a soft dry cloth prior to storage.
10
Cleaning
Exterior plastic parts may be cleaned with a damp cloth.
Although these parts are solvent resistant, NEVER use solvents.
Use a soft, dry cloth to remove moisture from the tool before
storage.
Accuracy Check and Calibration
Checking Accuracy –
Horizontal Beam, Scan Direction (See figure
)
7
Checking the horizontal scan calibration of the laser requires
two walls 9m (30') 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, with the
laser facing straight ahead toward the opposing wall (0 degree
position).
2. Turn on the laser's horizontal beam and front vertical beam and
mark the beam position on the opposing wall directly across from
the laser. Always mark the center of the beam's thickness.
3. Pivot the laser 180 degrees and mark the beam position on the
opposing wall.
4. Measure the vertical distance between the lowest mark
the highest mark
B
. 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 Marks
30' (9m)
1/8" (3.0mm)
40' (12m)
5/32" (4.0mm)
50' (15m)
7/32" (5.0mm)
Checking Accuracy –
Horizontal Beam, Pitch Direction (See figure
)
8
Checking the horizontal pitch calibration of the laser requires a
single wall at least 30' (9m) long. 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 one end of a wall using its pivot bracket.
2.
Turn on the laser's horizontal beam and pivot the laser toward
the opposite end of the wall and approximately parallel to the
adjacent wall.
3.
Mark the center of the beam at two locations (
30' (9m) apart.
4.
Reposition the laser to the opposite end of the wall.
5.
Turn on the laser's horizontal beam and pivot the laser back
toward the first end of the wall and approximately parallel to
the adjacent wall.
6.
Adjust the height of the laser so that the center of the beam is
aligned with the nearest mark
7.
Mark the center of the beam
c
farthest mark
.
8.
Measure the distance between these two marks
(
c
,
e
). If the measurement is greater than the values shown
below, the laser must be serviced at an authorized service
center.
Distance Between Walls
30' (9m)
40' (12m)
A
and
50' (15m)
Checking Accuracy –
Vertical Beam (See Figure
9
Checking the vertical (plumb) calibration of the laser can be
most accurately done when there is a substantial amount of
vertical height available, ideally 30' (9m), with one person on
the floor positioning the laser and another person near a ceiling
to mark the position of the beam. 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.
Place the laser on the floor and turn on both vertical beams.
2.
Mark two positions where the beams cross on the floor
f
g
(
,
) and also on the ceiling
the beams' thickness.
3.
Rotate the laser 180 degrees, and reposition it close to the
g
second mark
so the beam crossing is exactly on the original
marks (
f
,
g
) on the floor.
4.
Mark the position where the beams cross on the
j
ceiling
.
5.
Measure the distance between the two ceiling marks
h
j
(
,
). If the measurement is greater than the values shown
below, the laser must be serviced at an authorized service
center.
c
d
,
) at least
Ceiling Height
8' (2.5m)
10' (3m)
d
.
14' (4m)
e
directly above or below the
20' (6m)
30' (9m)
Checking 90º Accuracy Between Vertical Beams (DW089LR/G)
(See Figure
)
Allowable Distance
10
Between Marks
Checking 90º accuracy requires an open floor area at least 33' x
18' (10m x 5m). Refer to Figure 9 for the position of the laser at
1/4" (6.0mm)
each step and for the location of the marks made at each step.
5/16" (8.0mm)
Always mark the center of the beams' thickness.
1. Set up the laser in one corner of the floor and turn on the side
13/32" (10.0mm)
vertical beam.
2. Mark the center of the beam at three locations
a
b
c
(
,
,
)on the floor along the side laser line. Mark
should be at the midpoint of the laser line.
)
3. Move the laser to mark
4. Position the beam crossing precisely at mark
beam aligned with mark
d
5. Mark a location
away from the unit.
6. Rotate the laser cross over mark b so that the side vertical beam
now passes through mark
7. Mark the location
mark
d
.
8. Measure the distance between marks
measurement is greater than the values shown below, the laser
h
. Always mark the center of
must be serviced at an authorized service center.
Allowable Distance
Between Marks
1/16" (1.5mm)
3/32" (2.0mm)
1/8" (2.5mm)
5/32' (4m)
1/4' (6m)
b
b
and turn on both vertical beams.
b
, with the side
.
c
along the front vertical beam at least 5m (18')
b
d
,
.
e
where the side vertical beam passes by
d
e
and
. If the
11
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