DeWalt DW089 User Manual page 21

5. Measure the vertical distance between the lowest mark (A) and
CHECKING ACCURACY – HORIZONTAL BEAM, PITCH DIRECTION (FIG. 6)
Checking the horizontal pitch calibration of the laser requires a single
wall at least 9 m (30') 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.
TABLE 2
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
3. Mark the centre of the beam at two locations (C, D) at least 9 m
4. Reposition the laser to the opposite end of the wall.
5. Turn on the laser's horizontal beam and pivot the laser back
6. Adjust the height of the laser so that the centre of the beam is
7. Mark the centre of the beam (E) directly above or below the
8. Measure the distance between these two marks (C, E). If the
DW089_DW089CG - User Manual - NA - May 2018.indd 19
the highest mark (B). If the measurement is greater than the values
shown in Table 1, the laser must be serviced at an authorised
service centre.
Distance
Between Walls
9.0 m (30')
12.0 m (40')
15.0 m (50')
opposite end of the wall and approximately parallel to the adjacent
wall.
(30') apart.
toward the first end of the wall and approximately parallel to the
adjacent wall.
aligned with the nearest mark (D).
farthest mark (C).
measurement is greater than the values shown in Table 2, the laser
must be serviced at an authorised service centre.
DW 0 8 9/ D W089CG
Allowable Distance
Between Marks
6.0 mm (1/4")
8.0 mm (5/16")
10.0 mm (13/32")
E
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