Winter maintenance precautions for diesel generators
There are power outages and outages in many public places across the country. After years of technological transformation, Reed Power has built a series of safe and reliable generating units. It is necessary to do daily maintenance of the units. Let me tell you how to maintain the diesel generator in winter.
I. Open flame start
In places where the temperature is low, the machine can be started with an open flame, but the air filter cannot be removed. Use cotton yarn dipped in diesel to ignite, and then put the igniter into the intake pipe to start the combustion. In this way, during the startup process, the external dusty air will be directly sucked into the cylinder without filtering, causing abnormal wear of the pistons, cylinders and other components, and will also cause the diesel engine to run unevenly and damage the machine.
Whether to discharge the cooling water prematurely
在停机前以怠速运转。 The generator runs at idle speed before stopping. When the temperature of the cooling water drops below 60 ° C, the water will not be hot, and then the flame will be turned off. If the cooling water drains too early and is attacked by cold air at high temperatures, the body will suddenly contract and crack. When draining water, the remaining water in the fuselage should be drained to prevent frost heaving and cause the fuselage to expand and crack. Shun Jinxing recommends that users use antifreeze in any season, and higher level generator sets use antifreeze. Because antifreeze can not only cool, but also protect the diesel engine.
Selection of lubricant
In winter, oil with a lower freezing point should be used. When starting, external oil bath heating can be used to increase the oil temperature. Open flames are not recommended to prevent the oil in the oil pan from deteriorating or even burning, reducing or completely losing the lubricating performance, thereby increasing the wear of the machine.
Fourth, the starting method
In winter, if conditions permit, each generator is equipped with a water jacket heater so that the machine can maintain a certain "temperature" and can be easily operated at any time. In order to quickly start diesel generator sets , some operators often use abnormal waterless starting methods (starting first, then adding cooling water). This practice will cause serious damage to the machine and should not be used. The correct preheating method is: first cover the heat preservation cover on the water tank, open the water drain valve, and continuously inject clean soft water at 60-70 ° C into the water tank, touch the water flowing from the water drain valve with your hands to feel hot, and then close the water drain valve Then start the drain valve.
V. Precautions for low temperature load
After the diesel generator set caught fire, some operators could not wait to start the load operation immediately. Due to the low body temperature and the high viscosity of the oil, it is difficult for the oil to be injected into the moving friction surface, causing serious engine wear. In addition, plunger springs, valve springs, and injector springs are prone to break due to "cold brittleness". Therefore, after the diesel generator starts to catch fire in winter, it should be idled for a few minutes at low and medium speeds, and put into operation with load after the cooling water temperature reaches 60 ° C.
Six, engine fuel
Low temperature in winter can easily increase the viscosity of diesel oil, worsen its fluidity, make it difficult to inject diesel oil, cause poor atomization, worse combustion, and reduce the power and economy of diesel engines. Therefore, light diesel oil with low freezing point and good ignition performance should be used in winter. Generally, the freezing point of a diesel engine should be 7-10 ° C lower than the local low temperature of the season.
The above content is written for you by Reed Power Equipment Co., Ltd. We hope to help you. To learn more about generators or to purchase a generator set, please contact us. To provide you with better services.
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