DeWalt DW077 Manual De Instrucciones página 11

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temperature below +40°F(+4.5°C), or above +105°F (+40.5°C).
This is important and will prevent serious damage to the battery
pack.
2. The charger and battery pack may become warm to touch while
charging. This is a normal condition, and does not indicate a
problem.
3. If the battery pack does not charge properly — (1) Check current
at receptacle by plugging in a lamp or other appliance, (2) Check
to see if receptacle is connected to a light switch which turns
power off when you turn out the lights. (3) Move charger and
battery pack to a location where the surrounding air temperature
is approximately 65°F - 75°F (18°- 24°C). (4) If charging problems
persist, take or send the tool, battery pack and charger to your
local service center.
4. The battery pack should be recharged when it fails to produce
sufficient power on jobs which were easily done previously. DO
NOT CONTINUE to use under these conditions. Follow the
charging procedure. You may also charge a partially used pack
whenever you desire with no adverse affect on the battery pack.
5. Under certain conditions, with the charger plugged into the power
supply, the exposed charging contacts inside the charger can be
shorted by foreign material. Foreign materials of a conductive
nature such as, but not limited to, steel wool, aluminum foil, or any
buildup of metallic particles should be kept away from charger
cavities. Always unplug the charger from the power supply when
there is no battery pack in the cavity. Unplug charger before
attempting to clean.
6. Do not immerse charger in water or any other liquid.
WARNING: Don't allow any liquid to get inside charger. Electric
shock may result. To facilitate the cooling of the battery pack after
use, avoid placing the charger or battery pack in a warm environ-
ment such as in a metal shed, or an uninsulated trailer.
CAUTION: Never attempt to open the battery pack for any rea-
son. If the plastic housing of the battery pack breaks or cracks,
return the battery pack to a service center for recycling.
LASER OPERATION
• Ensure that the battery is properly charged. If the "Power" LED
light is flashing, the battery needs to be charged.
• To extend battery life per charge, turn the laser off when it is not
in use.
• To ensure the accuracy of your work, check the laser calibration
often. See the "Field Calibration Check" section of this manual.
• Before attempting to use the laser, make sure the tool is posi-
tioned on a relatively smooth,secure surface.
• Always mark the center of the laser line or dot. If you mark dif-
ferent parts of the beam at different times you will introduce error
into your measurements.
• To increase working distance and accuracy, set up the laser in
the middle of your working area.
• When attaching to a tripod or wall, mount the laser securely.
• When working indoors, a slow rotary head speed will produce a
visibly brighter line, a faster rotary head speed will produce a
visibly solid line.
• To increase beam visibility, wear the Laser Enhancement Glass-
es provided and/or use the Laser Target Card to help find the
beam.
• Extreme temperature changes can cause movement or shifting
of building structures, metal tripods, equipment, etc.,which can
effect accuracy. Check your accuracy often while working.
• When working with the D WALT Digital Laser Detector, set the
E
laser's rotation speed to the fastest setting.
• If the laser is dropped or has suffers a sharp blow, have the cal-
ibration system checked by a qualified service center before
using the laser.
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