Makita HM1211B Owners Manual - Page 8

1 1. Commutator 2. Insulating tip 3. Carbon brush 001146 Replacing carbon brushes 2 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 3 in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes. 002949 Use a hex wrench to remove the rear cover. 1. Hex wrench 2. Rear cover 1 2 002950 Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure 1 the brush holder caps. 2 1. Screwdriver 2. Brush holder cap 1 1. Lock nut wrench 2. Crank cap 8 002963 Lubrication This tool requires no hourly or daily lubrication because it 2 has a grease-packed lubrication system. It should be relubri- cated after every 6 months of operation. Send the complete tool to Makita Authorized or Factory Service Center for this lubrication service. However, if circumstances require that you should lubricate it by yourself, proceed as follows. 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.