10
Troubleshooting
THE LASER DOES NOT TURN ON
• Make sure batteries are installed according to (+) and (–) on the inside of the
battery door.
• Make sure the batteries are in proper working condition. If in doubt, try installing
new batteries.
• Make sure that the battery contacts are clean and free of rust or corrosion. Be
sure to keep the laser level dry and use only new, high-quality, name-brand
batteries to reduce the chance of battery leakage.
• If the laser unit is heated above 50 °C (122 °F), the unit will not turn on. If the
laser has been stored in extremely hot temperatures, allow it to cool. The laser
level will not be damaged by pressing the on/off button before cooling to its
proper operating temperature.
THE LASER BEAMS FLASH
The DW089-XE is designed to self-level up to an average of 4° in all directions
when positioned as shown in Figure 3. If the laser is tilted so much that the internal
mechanism cannot level itself, it will flash the laser beams – the tilt range has been
exceeded. THE FLASHING BEAMS CREATED BY THE LASER ARE NOT LEVEL OR
PLUMB AND SHOULD NOT BE USED FOR DETERMINING OR MARKING LEVEL OR
PLUMB. Try repositioning the laser on a more level surface.
THE LASER BEAMS WILL NOT STOP MOVING
The DW089-XE is a precision instrument. Therefore, if the laser is not positioned on a
stable (and motionless) surface, the laser will continue to try to find level. If the beam
will not stop moving, try placing the laser on a more stable surface. Also, try to make
sure that the surface is relatively flat, so that the laser is stable.
Repairs
NOTE: Disassembling the laser level will void all warranties on the product.
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement) should be performed by certified
service centers or other qualified service organizations, always using identical
replacement parts.
SPECIFICATIONS
Light source 3 semiconductor laser diodes
Laser wavelength 620 – 690nm visible
Laser power <1.50 mW (each beam) CLASS 2 LASER PRODUCT
Beam divergence 0.24 mrad full angle
Working range ± 15 m (50')
Accuracy (plumb) ±3 mm per 9 m (±1/8" per 30')
Accuracy (level) ±3 mm per 9 m (±1/8" per 30')
Indicators Flashing indicator: battery low
Flashing laser beams: tilt range exceeded
Power source 4 AA (1.5V) size batteries (6V DC)
Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
Storage temperature -20 °C to 60 °C ( -5 °F to 140 °F)
Humidity Maximum relative humidity 80% for temperatures up
to 31 °C (88 °F) decreasing linearly to 50% relative
humidity at 40 °C (104 °F)
Environmental Water resistant
ACCESSORIES
WARNING: Since accessories, other than those offered by DEWALT, have not been
tested with this product, use of such accessories with this tool could be hazardous.
To reduce the risk of injury, only DEWALT recommended accessories should be used
with this product.
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