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OPERATING INSTRUCTIONS
Removing Bits
a. Place the direction-of-rotation selector (E) in the
center lock position.
b. Open the chuck jaws.
c. Remove the drill bit.
WARNING
• Do not hold the chuck body with one hand and
use the power of the hammer drill to tighten or
loosen the chuck jaws on the drill bit. The chuck
body could slip in your hand, or your hand could
slip and come in contact with the rotating bit.
This could cause an accident resulting in serious
personal injury.
13. Drilling
WARNING
• Always wear safety goggles or safety glasses
with side shields during power tool operation or
when blowing dust. If operation is dusty, also
wear a dust mask.
a. Set the direction-of-rotation selector (E) to
forward rotation.
b. Secure the material to be drilled in a vise or
with clamps to keep it from turning as the drill
bit rotates.
c. Hold the hammer drill firmly and place the bit at
the point to be drilled.
d. Depress the variable-speed trigger switch (F) to start the hammer drill.
e. Move the drill bit into the work piece, applying only enough pressure to keep the bit drilling.
Do not force the hammer drill or apply side pressure to elongate a hole. Let the tool do the
work.
f. When drilling hard, smooth surfaces, use a center punch (sold separately) to mark the
desired location of the hole. This will prevent the drill bit from slipping off center as the hole
is started.
g. If the bit jams in the work piece or if the hammer drill stalls, stop the tool immediately.
Remove the bit from the work piece and determine the reason for jamming.
h. To stop the hammer drill, release the variable speed trigger switch and allow the tool to
come to a complete stop.
12b
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