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To remove the core bit, follow the procedures
(1)
or
(2).
1)
Rotate the change lever
to
the posi-
tion. Then rest the core bit on the con-
crete and turn the tool on. The core bit
will come loose from the hammering
action.
2)
Hold the adapter with the wrench, in-
sert the rod into the hole in the core bit
and tap with
a
hammer to unscrew.
[When not using the center bit]
Screw the core bit on the adapter. Install
the adapter with the core bit in the tool in
the
same manner
as
a
drill bit.
Rotate the change lever to the position.
Rest
the core bit on the concrete and turn
the tool on. Once the core bit has cut
a
shallow groove into the concrete, rotate
the change lever to the position and
resume drilling.
Ti
NOTE
:
No
problem
is
caused even if the core bit unscrews slightly during brief use since the core
bit rotates in the tightening direction.
To remove the core bit, follow the same removal procedures covered in [when using the
center bit
1.
8