How to do a good job in minor repairs of diesel generators? The minor maintenance of the generator is carried out after each season or after a total of 500 hours of operation. In addition to completing the daily maintenance work of the generator, its specific contents include cleaning the surface of the collector ring or commutator, as well as the brushes and brush holders, cleaning the dust on the window cover plate, dismantling the small end cover of the diesel generator shaft cover to check the lubricating oil, consumption, and cleanliness. Today, I will explain to you the operational strategies for minor repairs of diesel generators.

1. Clean the surface of the collector ring or commutator, as well as the brush and brush holder, using a soft and dry cloth dipped in a small amount of diesel (alcohol, kerosene, etc.) to wipe, then use other clean cloth to dry the surface, and check the wear condition of the brush and its contact with the collector ring (or commutator). If necessary, repair or adjust it, and also check the pressure of the carbon brush. If it is not suitable, adjust it again.

2. Open the window cover and if dust is found inside the diesel generator, it should be cleaned. Use dry and clean compressed air to blow away dust from various parts inside the generator, ensuring that the pressure does not exceed 2 × Pa. The surfaces of each winding and the inside of the fan should also be thoroughly cleaned to maintain efficient ventilation and heat dissipation.

3. Disassemble the small end cover of the motor shaft cover (one at the shaft extension end does not need to be removed), check the lubricating oil, consumption, and cleanliness. If insufficient measurement is found, it should be added appropriately. If uneven color, hardening, or other metal impurities are found, the lubricating oil should be cleaned and replaced. When dismantling the generator, it is important to grasp the essentials to avoid damaging the generator.

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