To Install Batteries; Operating Tips; Description (Fi G. 1) - DeWalt DW089 Instruction Manual

TO INSTALL BATTERIES

1. Lift up the battery compartment cover (A) as shown in figure 1.
2. Insert four fresh LR6 (AA-size) batteries in the compartment,
placing the batteries according to (+) and (–) on the inside of the
battery door.
WARNING: When replacing batteries, always replace the complete
set. Do not mix old batteries with new ones. Preferably use alkaline
batteries.

Operating Tips

• Use only new, high-quality, name brand batteries for best results.
• Ensure batteries are in good working condition. If the low battery
red indicator light is flashing, the batteries need replacement.
• To extend battery life, turn laser off when not working with or
marking the beam.
• To ensure the accuracy of your work, check often to make sure
your laser is calibrated. See Field Calibration Check.
• Before attempting to use the laser, make sure it is positioned
securely, on a smooth, flat surface.
• Always mark the center of the beam created by the laser.
• Extreme temperature changes may cause movement of internal
parts that can affect accuracy. Check your accuracy often while
working. See Field Calibration Check.
• If the laser has been dropped, check to make sure your laser is
still calibrated. See Field Calibration Check.
LOW BATTERY INDICATION (FIG. 1)
The DW089 laser is equipped with a red indicator light (B), as shown
in figure 1. The red indicator light is located to the left of the on/off
buttons (C, D, E).
A flashing red indicator light indicates that the batteries are low and
need to be replaced. The laser may continue to operate for a short
time while the batteries continue to drain, but the beam(s) will quickly
dim. After fresh batteries are installed and the laser is turned on again,
the laser beam(s) will return to full brightness and the red indicator
light will stay off. (A flashing laser beam is not caused by low batteries;
see Out of Tilt Range Indicator.)
Description (fi g. 1)
WARNING: Never modify the power tool or any part of it. Damage
or personal injury could result.
G
FIG. 1
B
D
C
E
A, I
(+)
(–)
33
F
H
A
I
(–)
A
(+)