Makita HR5000K Instruction Manual page 6

Blow-out bulb (optional accessory)
002449
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
003208
Set the change lever to the
Hold the tool firmly with both hands. Turn the tool on and
apply slight pressure on the tool so that the tool will not
bounce around, uncontrolled. Pressing very hard on the
tool will not increase the efficiency.
Core bit (optional accessory)
When 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.
003209
Install the center bit.
1
003210
1. Blow-out bulb
1
symbol.
1. Core bit
1
2. Adapter
2
1. Center bit
Rest the core bit on the concrete and turn the tool on.
Once the core bit has cut a shallow groove into the
concrete, remove the center bit. Then resume drilling.
003212
To remove the core bit, follow the procedures 1 or 2.
003214
1. Rotate the change lever to the
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) into the hole in the core bit
and tap with a hammer to unscrew.
1
003215
When not using the center bit
003216
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
6
position. Then
1. Rod
1. Core bit
1
2. Adapter
2
position. Rest the core