Bosch Generator
1– fan pulley; 2 – front cover; 3 – rotor; 4 – bearing; 5 – stator; 6 – rectifier; 7 – back cover; 8 – brush holder; 9 – electronic voltage regulator
The voltage regulator and generator brushes can be replaced without removing the generator from the engine.
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, which should 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.