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.
1
2
003225
1.Hex wrench
2.Rear cover
003212 |
NOTE: |
Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.
•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.
•Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.
Replacing carbon brushes
1 |
2 |
003231 |
Lubrication |
1 |
2 |
1.Screwdriver
2.Brush holder cap
1.Lock nut wrench
2.Crank cap
2
1
3
001146
1.Commutator
2.Insulating tip
3.Carbon brush
003236 |
This tool requires no hourly or daily lubrication because it has a
When the resin insulating tip inside the carbon brush is exposed to contact the commutator, it will automatically shut off the motor. When this occurs, both carbon brushes should be replaced. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.
Use a hex wrench to remove the rear cover.
Run the tool for several minutes to warm it up. Switch off and unplug the tool.
Remove the crank cap using a Makita lock nut wrench 35 (optional accessory). Rest the tool on the table with the bit end pointing upwards. This will allow the old grease to collect inside the crank housing.
7