DeWalt DW075 Instructions Manual page 36

EN GLI SH
Field Calibration Check (fi g. 10–12)
WARNING: Always have the laser head
calibrated by a qualified repair agent.
Field calibration checks should be done frequently.
NOTE: As part of the D
E
the owner is entitled to one FREE calibration
service within the first year. Simply complete
the enclosed voucher and return along with the
laser and proof of purchase to an authorised
D WALT agent. A certificate will be awarded at
E
no additional charge.
Field calibration checks do not calibrate the laser.
These checks indicate whether or not the laser is
providing a correct level and plumb line and do not
correct errors in the leveling or plumbing capability
of the laser.
These checks cannot take the place of professional
calibration performed by a D
E
LEVEL CALIBRATION CHECK (X-AXIS)
1. Set up a tripod between two walls that are at
least 50 feet (15 m) apart. The exact location of
the tripod is not critical.
2. Mount the laser unit on the tripod so that the
X-axis points directly toward one of the walls.
3. Turn the laser unit on and allow it to self-level.
4. Mark and measure points A and B on the walls
as shown in Figure 10.
5. Turn the entire laser unit 180º so the X-axis
points directly toward the opposite wall.
6. Allow the laser unit to self-level, and mark and
measure points AA and BB on the walls as
shown in Figure 11.
7. Calculate the total error using the equation:
Total Error = (AA – A) – (BB – B)
8. Compare total error to the allowable limits
shown in the following table.
Distance between walls
L = 15 m (50')
L = 25 m (80')
L = 50 m (160')
LEVEL CALIBRATION CHECK (Y-AXIS)
Repeat the procedure above, but with the laser unit
positioned so the Y-axis is pointed directly toward
the walls.
34
PLUMB ERROR CHECK (FIG. 12)
1. Using a standard plumb bob as a reference,
2. Position the rotary laser securely on the floor
WALT guarantee,
3. Turn the laser on, and point the dot at the
NOTE: This check should be done with a wall no
shorter than the tallest wall for which this laser will
be used.
WALT service centre.
Cleaning
Allowable Error
6 mm (0.25")
10 mm (0.4")
20 mm (0.8")
mark the top and bottom of a wall. (Be sure to
mark the wall and not the floor and ceiling.)
approximately 1 m (3') from the wall.
mark on the bottom of the wall. Then, using the
up/down arrows on the remote control, rotate
the dot upwards. If the center of the dot scans
over the mark on the top of the wall, the laser is
properly calibrated.
WARNING:
• Remove the batteries before cleaning
your laser unit.
• Never use solvents or other harsh
chemicals for cleaning the non-
metallic parts of the laser. Use a cloth
dampened only with water and mild
soap.
• Never let any liquid get inside the
unit; never immerse any part of the
unit into a liquid.
• Never use compressed air to clean
the laser.
• Keep the ventilation slots clear and
regularly clean the housing with a
soft cloth.
• The flexible rubber shield can be
cleaned with a wet lint-free cloth
such as a cotton cloth. USE WATER
ONLY — DO NOT use cleansers
or solvents. Allow the unit to air dry
before storing.
• Under some conditions, the glass
lens inside the rotary head may
collect some dirt or debris. This will
affect beam quality and operating
range. The lens should be cleaned
with a cotton swab moistened with
water.