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How to Maintain Diesel Generator Sets in Winter?

Dec. 08, 2021

Do you know how to maintain the diesel generator set in winter? The first is to replace the fuel. Generally, the freezing point of the diesel used should be lower than the seasonal minimum temperature of 3-5℃ to ensure that the minimum temperature will not affect the use due to freezing. Generally speaking, 5# diesel is suitable for use when the temperature is above 8℃; 0# diesel is suitable for use when the temperature is between 8℃ and 4℃; -10# diesel is suitable for use when the temperature is between 4℃ and -5℃; -20# diesel is suitable for use when the temperature is between -5℃ and -14℃; -35# diesel is suitable for use when the temperature is between -14℃ and -29℃; -50# diesel is suitable for use when the temperature is between -29℃ and -44℃ Or use when the temperature is lower than this.


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And regularly replace the antifreeze, and prevent leakage when adding it. There are several types of antifreeze, red, green and blue. It is easy to find when it leaks. Once you find that you need to wipe off the leak and check the leak, choose an antifreeze with a suitable freezing point. Generally speaking, the freezing point of the selected antifreeze is best to be low. Set aside the local minimum temperature of 10℃, and leave a lot of surplus to prevent sudden temperature drops at certain times. When the temperature drops sharply, the oil viscosity will increase, and it may be greatly affected during cold start. It is difficult to start and the engine is difficult to rotate. Therefore, when selecting the oil for the diesel generator set in winter, it is recommended to replace the oil with a lower viscosity. Due to the extremely high requirements for the air filter element and the diesel filter element in cold weather, if it is not replaced in time, it will increase the wear of the engine and affect the service life of the diesel generator set. Therefore, it is necessary to change the air filter frequently to reduce the probability of impurities entering the cylinder and extend the service life and safety of the diesel generator set.


In winter, special attention should be paid to temperature changes. If the temperature is lower than 4 degrees, the cooling water in the diesel engine cooling water tank should be discharged in time, otherwise the cooling water will expand during the solidification process, which will cause the cooling water tank to burst and damage. When the diesel generator set starts in winter, the temperature of the air sucked in the cylinder is low, and it is difficult for the piston to compress the gas to reach the natural temperature of diesel. Therefore, corresponding auxiliary methods should be adopted to increase the temperature of the diesel generator set body before starting. After starting the diesel generator set in winter, it should run at low speed for 3-5 minutes to increase the temperature of the whole machine and check the working condition of the lubricating oil. It can be put into normal operation after the check is normal. When the diesel generator set is running, try to minimize the sudden increase in the speed or the operation of stepping on the throttle to the maximum, otherwise the time will affect the service life of the valve assembly.


Starlight Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to sales@dieselgeneratortech.com we will pay highly attention on your question.

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