13
OPERATING INSTRUCTIONS
11. Installing Bits (not included)
a. Remove the battery pack.
b. Open or close the chuck jaws to a point where
the opening is slightly larger than the shank of
the bit you intend to use.
c. Insert the bit.
d. Tighten the chuck jaws securely on the bit.
NOTICE:
Rotate the chuck body in the direction of
the arrow marked GRIP to close the chuck jaws. Do
not use a wrench to tighten or loosen the chuck jaws.
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 and then tighten the
chuck as shown in Fig.11b. This could cause
the drill bit to be thrown from the hammer drill,
resulting in possibly serious personal injury or
damage to the chuck.
Removing Bits
a. Remove the battery pack.
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.
12. 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. Check the direction-of-rotation selector (F) for
the correct setting (forward or reverse).
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. Hold with two hands if
needed.
d. Depress the variable-speed trigger switch to start the hammer drill.
12
11a
11b
