Rectifier diodes are sensitive to temperature. Therefore, when replacing them, solder them as soon as possible using pliers with sponges. It is not recommended to use an electric soldering iron, since if its insulation is damaged, a short circuit may occur in the rectifier diodes. The electrical characteristics of the generator should never be tested in a circuit with a voltage of more than 14 V.
Diodes should never be tested in a circuit with a DC voltage greater than 24 V. It is recommended to clean the generator parts with white spirit, and after cleaning, immediately dry the parts, especially the windings, with compressed air.
When inspecting the parts, check:
- condition of the brushes, degree of their wear, fit of the brushes to the rings and spring pressure;
- appearance of the contact rings. Contact rings can only be cleaned with a clean rag soaked in gasoline or trichloroethylene. Contact rings can only be cleaned with fine-grained sandpaper. It is prohibited to use emery cloth for these purposes;
- condition of the bearings. They do not require maintenance, as they contain long-lasting grease;
- appearance of the rotor and stator. Make sure that their windings have no breaks or signs of burning.
The article was published on the website [OPELBOOK]
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