generator components. In this type, the fan is built into the rotor
1. Cover screw; 2. Drive housing, bearing and retainer (valve cotter); 3. Rotor and slip ring end bearing; 4. Pulley nut and washer; 5. Casing end slip ring and related components; 6. Stator; 7. Fastening of a brush of a voltage regulator; 8. Rectifier
Note: Solder will be needed for this procedure.
1. Remove the alternator as described in Chapter 13.
2. Remove the three screws that hold the two halves of the generator housing together.
3. Heat the bearing housing to 50°- 60°C, but do not overheat other components.
Warm up the ring and bearing housing
4. With the bearing housing still hot, remove the drive housing and rotor. Be careful not to damage the stator winding. Make sure the slip ring and separator are not lost. Clean the alternator rings with a soft cloth soaked in solvent.
5. Loosen the screw on the voltage regulator brush fastener (photo). Also unscrew the clamp nut and washer "IN".
Unscrew the voltage regulator/brush screw
6. Unsolder the connecting rods from the rectifier to release the voltage regulator brush fastener (photo). Solder quickly to avoid damaging the rectifier.
Unsolder the connecting rods (arrow)
7. Remove the voltage regulator brush fastener assembly. Solder the old brushes and solder the new ones (photo). When the new brushes are properly installed, the pole limit line should project out of the brush holder by 2-3mm.
Solder new brushes | 
Properly installed brushes |
8. Install the voltage regulator brush fastener and solder the connecting rods. Install the nut, washer and clamp fastening pins «IN».
Generator brush installation
9. Gently lift the brushes and keep them up. Insert a thin rod or twist drill through the hole in the body slip ring (photo).
Use a twist drill to hold the brushes (marked with arrows)
10. Ensure that the end bearing slip ring retainer is still seated in the plain bearing oil groove.
Ensure that the end bearing slip ring retainer (arrow) located in the oil groove (Chapters 14 and 16)
11. Install the three pints that connect the two parts of the body and clamp them.
12. Remove the rod that was used to hold the brushes (photo).
Remove the drill to release the brushes
13. Install the generator (Chapter 13).