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How to judge whether the 300kw generator needs to be changed oil?

May 23, 2022
Oil is the "blood" of the 300kw Cummins generator, which plays an important role in the normal operation of the unit. If the oil is not replaced for a long time, its lubricating ability will decline rapidly, so that the diesel generator set cannot be well lubricated, resulting in abnormal wear. At the same time, because the metal debris cleaned by the oil cannot be discharged, it will always accumulate inside the engine, and the dirt will produce a large amount of sludge. The engine will also have phenomena such as increased fuel consumption, decreased power, difficulty in starting, abnormal jitter, and poor operation, which may even lead to direct scrapping of the engine.
Diesel generator oil
 
       Oil is the "blood" of the 300kw Cummins generator, which plays an important role in the normal operation of the unit. Oil has important functions such as lubrication, heat dissipation, cleaning, sealing, and anti-corrosion and rust prevention. If the oil is not replaced for a long time, its lubricating ability will be reduced. Rapid decline, so that the diesel generator set can not be well lubricated, resulting in abnormal wear. At the same time, because the metal debris cleaned by the oil cannot be discharged, it will always accumulate inside the engine, and the dirt will produce a large amount of sludge. The engine will also have phenomena such as increased fuel consumption, decreased power, difficulty in starting, abnormal jitter and poor operation, which may even lead to direct scrapping of the engine. So how to determine whether the 300kw Cummins generator needs to be replaced? The following Dingbo Power will teach you a few simple methods.
 
       The finger test
       Use a dipstick to put a few drops of oil on the pulp of the thumb and carefully rub it back and forth with the thumb and index finger. Normal engine oil feels clean, lubricated and free of graininess. If it has poor stickiness and a sense of impurities, it means that there are too many impurities in the engine oil and needs to be replaced.
       2. Irradiation method
       Take out the oil with the oil dipstick and observe it carefully under strong light. If there are impurities in the oil, you need to replace the oil. If there are no impurities in the oil droplets, you can continue to use it.
       Three, smell method
       Normal oil will not have a peculiar smell, but deteriorated oil will have a strong strange smell. Generally, you only need to take out the oil dipstick and smell it with your nose to determine whether the oil has deteriorated.
       4. Observation method
       Take out the oil dipstick and drop the oil on the oil test paper. After waiting for the oil to soak into the test paper, it is normal to observe that the oil is yellow and oily. Push the oil droplets by hand, and the paper surface feels smooth, which means the oil quality is good. On the other hand, if the oil is dark brown and feels impurity, it proves that there are many impurities and the oil needs to be replaced in time.
 
When changing the oil of 300kw Cummins generator, it is best to replace the filter element of the oil filter. The function of the oil filter is to filter the impurities in the oil. If it is not replaced in time, the accumulated impurities will cause blockage. If it is light, it will cause insufficient oil pressure, poor lubrication of mechanical parts, and in serious cases, it will cause excessive wear of the engine and affect the service life of the diesel generator set.
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