It is possible to remove the brushes and the regulator separately.
Bosch Generator
1. Remove the ground wire from the battery.
2. Unscrew 3 bolts and remove the heat shield.
3. Unscrew the 2 screws securing the voltage regulator and carefully remove the regulator.
4. Check the length of the graphite brushes (distance A), which must be at least 5 mm.
5. To replace carbon brushes, it is necessary to unsolder the current leads, remove worn brushes and springs, install new brushes with springs in the regulator socket and solder the current lead so that the length of the brushes is 10 mm. When soldering, do not allow flux and solder to get on the current lead, except for the soldering point (1 - brushes, 2 - brush pressure springs, 3 - brush holder).
6. Check the ease of movement of the brushes in the holder.
Lucas Generator
1. Remove the ground wire from the battery.
2. Remove the heat shield.
3. Remove the connector with wires from the generator.
4. Unscrew the rear cover of the generator.
5. Disconnect the wires from the regulator, unscrew the connecting plate, the regulator mounting screw and remove the regulator (1 - screw, 2 - plastic gasket, 3 - connecting plate, 4 - regulator).
6. Unscrew the screws (indicated by the arrow) securing the graphite brushes and remove the brushes from the holder.
7. Check the length of the graphite brushes, which should be at least 5 mm.
Motorola Generator
1. Remove the ground wire from the battery.
2. Remove the heat shield.
3. Remove the connector with wires from the generator.
4. Unscrew the regulator (A) and disconnect 2 wires (indicated by arrows).
5. Unscrew the brush holder mounting screw.
6. Unscrew the brush holder and, carefully turning it outward, remove it from the generator (1 – graphite brush, 2 – contact).
7. Check the length of the graphite brushes, which should be at least 4 mm.