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11
To remove the core bit, follow the procedures 1 or 2.
1. Rotate the change lever to the position. Then rest
the core bit on the concrete and turn the tool on. The
core bit will come loose from the hammering action.
2. Hold the adapter with the wrench, insert the rod (optional
accessory)intotheholeinthecorebitandtapwitha
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.
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”.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
003213
1. Rod
1
003215
1. Core bit
2. Adapter
1
2
003216
003211