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Page 15
OPERATION
INSTALL THE BIT (FIG.13)
FIG. 13
Unlock
(Release)
1. Remove the battery pack from the
hammer drill.
2. Open the chuck jaws until the opening
is slightly larger than the bit you intend
to use and raise the front of the hammer
drill slightly to keep the bit from falling
out of the chuck jaws.
3. Insert the bit into the chuck.
4. Rotate the chuck in the direction of the
arrow marked LOCK to close the chuck
jaws.
5. Tighten the chuck jaws securely on the
bit.
REMOVE THE BIT (FIG.13)
1. Remove the battery pack from the
hammer drill.
2. Open the chuck jaws.
3. Rotate the chuck in the direction of the
arrow marked UNLOCK to loosen the
chuck jaws.
4. Remove the bit.
WARNING:
Make sure to insert
the bit straight into the chuck jaws. Do
not insert the bit into the chuck jaws at an
angle and then tighten. This could cause
the bit to be thrown from the hammer drill,
resulting in possibly serious personal
injury or damage to the chuck.
WARNING:
Use protective gloves
when removing the bit from the tool, or
rst allow the bit to cool down. The bit
may be hot after prolonged use.
DRILLING
1. Check that the direction-of-rotation
selector is at the forward setting.
2. Secure the material to be drilled in a vise
or with clamps to keep it from turning as
the drill bit rotates.
3. Hold the hammer drill firmly and place
the bit at the point to be drilled.
4. Depress the trigger switch to start the
hammer drill.
5. Move the drill bit into the workpiece,
applying only enough pressure to keep
the bit drilling. Do not force the drill or
apply side pressure to elongate a hole.
Let the tool do the work.
6. When drilling hard and smooth surfaces,
use a center punch to mark the desired
location of the hole. This will prevent the
drill bit from slipping off-center as the
hole is started.
7. When drilling metals, use light oil on
the drill bit to keep it from overheating.
The oil will prolong the life of the bit and
increase the drilling action.
8. If the bit jams in the workpiece or if the
drill stalls, stop the tool immediately.
Remove the bit from the workpiece and
determine the reason for jamming.
Bit
Keyless Chuck
Lock
(Tighten)
Chuck Jaws
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