Use and Care Manual

7 - English
OPERATION
WARNING:
Make sure to insert the drill bit straight into the
chuck jaws. Do not insert the drill bit into the chuck
jaws at an angle, then tighten. This could cause
the drill bit to be thrown from the drill, resulting in
possible serious personal injury or damage to the
chuck.
 Rotate the chuck sleeve to close and tighten the chuck
jaws.
WARNING:
Do not hold the chuck sleeve with one hand and
use the power of the drill to tighten the chuck
jaws on the drill bit. The chuck sleeve could slip
in your hand, or your hand could slip and come in
contact with the rotating drill bit. This could cause
an accident resulting in serious personal injury.
To remove bits, lock the switch trigger and open the
chuck jaws.
The bit provided with the drill can be placed in the storage
area, located on the rear base of the drill.
LED LIGHT
See Figure 7, page 11.
The LEDs emit light from the front of the chuck when either
the switch trigger or grip light switch is depressed.
If the drill is not in use, the time-out feature will cause the
light to start fading and then shut off.
The LED light illuminates only when there is a charged bat-
tery pack in the tool.
TWO-SPEED GEAR TRAIN (HI-LO SWITCH)
See Figure 8, page 11.
Select LO (1) speed for applications requiring higher
power and torque.
Select HI (2) speed for fast drilling or driving applications.
NOTE: Running at low speeds under constant usage may
cause the drill to become overheated. If this occurs, cool the
drill by running it without a load and at full speed.
NOTICE:
Never change speeds while the tool is running.
Failure to obey this caution could result in serious
damage to the drill.
ADJUSTING TORQUE
See Figure 9, page 11.
When using the hammer drill for various driving applications,
it becomes necessary to increase or decrease the torque
to help prevent the possibility of damaging screw heads,
threads, workpiece, etc. In general, torque intensity should
correspond to the screw diameter. If the torque is too high or
the screws too small, the screws may be damaged or broken.
The torque is greater when the torque adjustment ring is
set on a higher setting. The torque is less when the torque
adjustment ring is set on a lower setting.
NOTE: The torque adjustment ring only functions in drive
mode.
SELECTING DRILL, DRIVE, OR HAMMER MODE
See Figure 10, page 12.
Drill mode should be used for drilling and other heavy duty
applications. Drive mode should be used for driving screws.
Hammer mode should be used for hammer drilling.
Select the option that best matches the type of bit, fastener,
and material you will be using.
 Choose your application.
 Choose the correct speed: LO (1) or HI (2).
 Choose the correct mode: drill, drive or hammer.
NOTE: The hammer drill has not been designed for reverse
hammering.
Use carbide-tipped bits and select hammer mode when
drilling in hard materials such as brick, concrete, etc.
Use carbide-tipped bits and select drill mode when drilling
in materials with hard, brittle surfaces such as tile, etc.
Use twist drills, hole saws, etc. and drill mode when drilling
in soft materials.
NOTE: When drilling in hammer mode, it is advisable to use
LO (1) Speed.
DRILLING/DRIVING SCREWS
See Figure 11, page 12.
 Installtheauxiliaryhandle.
 Check the direction of rotation selector for the correct
setting(forwardorreverse).
 Use LO (1) speed for high torque applications and
HI (2) speed for fast drilling or driving applications. Refer
to Two-Speed Gear Train and Adjusting Torque.
 Secure the workpiece in a vise or with clamps to keep it
fromturningasthebitrotates.