The daily maintenance of diesel generator sets can not only ensure the working efficiency of the generator and prolong the service life, but the wrong maintenance not only fails to maintain the generator, but also prone to failure and safety hazards. Therefore, the quark motor Through practice and sorting, the following common problems in the maintenance of generator sets are summarized.

When cleaning or replacing the plunger and nozzle, ignore the inspection of the delivery valve:

    The fuel delivery valve directly affects the working efficiency of the fuel injection nozzle. If it is not regularly checked and replaced, it will cause the diesel engine to emit smoke, knock the cylinder or run unstable, which will leave a safety hazard. Therefore, the customer must regularly inspect or replace the oil outlet valve according to the actual usage.

    Ignore the valve timing when adjusting the valve clearance:

    When adjusting the valve clearance of diesel generator sets that have been working for many years, many people often ignore whether the valve timing is correct; the cam of the generator set is worn and deformed due to prolonged operation, which easily leads to insufficient intake air, increased fuel consumption, and reduced power. The problem; therefore, for a generator that has been working for a certain period of time, when adjusting the valve interval, the gap value should be appropriately reduced to compensate for the error of the valve phase.

    Only pay attention to changes in oil volume and ignore oil quality:

    When adding engine oil, many people often ignore the quality of the remaining engine oil; and the remaining engine oil will produce oxidized substances and metal chips due to quality problems, which will reduce the lubrication performance and increase the wear of components; therefore, you need to check the remaining engine oil before adding engine oil. quality.

    Ignore the air short circuit problem when checking the air filter:

    When inspecting or replacing the air filter, it is necessary to check whether the welding of the intake pipe, the sealing gasket, the rubber tube is broken, or the lack of rubber ring in the air filter, etc., to avoid air short circuit, resulting in unfiltered The clean air enters the cylinder, causing wear and tear on parts such as cylinders and valves.

    Ignore the cleaning of the purifying oil chamber when cleaning the machine hole filter:

    Purifying the oil cavity has the effect of improving the quality of lubrication. If it is not cleaned regularly, it will cause too much impurities and affect the lubrication effect; therefore, it needs to be based on the usage of the generator set

    Remove the oil plug regularly and clean the impurities in the purifying oil cavity and oil passage according to the prescribed method.


    Only the correct maintenance of the diesel generator set can effectively extend the service life and safe operation of the generator set. Therefore, Quark Motor reminds our customers to pay more attention to the observation and cleaning of the details during the daily maintenance of the generator set.

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