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THE DETECTOR IS GIVING OFF A TONE BUT THE
LCD DISPLAY WINDOW IS NOT FUNCTIONING.
• If the detector is very cold, allow it to warm up in a heated area.
• If the LCD display window is still not functioning, take the detec-
tor to a D
EWALT service center.
LASER MAINTENANCE
1. 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 as shown.
2. 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.
3. To maintain the accuracy of your work, check the calibration of
the laser often. See the Field Calibration Check section of this
manual.
4. Calibration checks and other maintenance repairs can be
performed by D
EWALT service centers. Two free calibration
checks are included under the D
EWALT One Year Free
Service Contract.
5. When the laser is not in use, store it in the kit box provided.
6. Do not store your laser in the kit box if the laser is wet. Dry
exterior parts with a soft, dry cloth and allow the laser to air dry.
7. Do not store your laser at temperatures below 0˚F (-18˚C) or
above 105˚F (41˚C).
CLEANING
Exterior plastic parts may be cleaned with a damp cloth and mild
detergent. Although these parts are highly solvent resistant,
NEVER use solvents. Never use compressed air to clean the laser.
Field Calibration Check
Field calibration checks should be done frequently. This section
provides instructions for performing simple field calibration checks
of your D
EWALT 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 D
EWALT service center.
LEVEL MODE CALIBRATION CHECK
1. Set up a tripod 50' (15m) from a vertical wall as shown. Make
sure that the head of the tripod is level using a bubble vial.
APPROX. 50 ft.
(15m)
APPROX. 50 ft.
(15m)
BEAM
BEAM
LASER UNIT
ROTATED 180˚