Agricultural trucks operate in cold conditions in winter. How to use reasonable water is a fine work. In the daily production and life, if agricultural vehicles use improper cooling water, it is easy to damage the engine and even reduce the engine. Life expectancy. Xue Shaoping, a researcher at the College of Mechanical and Electrical Engineering at Northwest A&F University, reminded the farmers that in order to use the vehicles in winter, they should pay attention to the scientific management of adding water and water to agricultural vehicles.

Do not rush to put water after the end of the agricultural vehicle operation. Xue Shaoping said that many agricultural households immediately let go of water after using the car. This is an extremely wrong practice. The engine temperature of the engine that has just stopped is as high as 90°C, which is very different from the outside temperature. , Because of the cooling speed is too fast, it will easily cause the tank, engine parts, cylinder heads and other cracks. "The correct way is to allow the engine to run idly for 5-6 minutes. When the temperature of the standby body drops to 50-60°C, the cooling water is released," said Xue Shaoping.

After heating the water and then starting the agricultural vehicle, the temperature of the engine will rise sharply. At this time, the instantaneous temperature of the combustion chamber can reach more than 100°C. “Cool water must not be added at this temperature, otherwise it is easy to make the cylinder of the engine. The cylinder head and the vortex chamber insert will crack due to the rapid cooling, and the piston, connecting rod, etc. will also be deformed." Xue Shaoping said, we must ensure that the water tank is added with 80°C hot water before the engine starts.

When releasing water, pay attention to observation of water discharge. Long-term use of agricultural vehicles can easily form scales, impurities, and other deposits, and these sediments will be accumulated in a large number of water discharge switches, resulting in blockage of the switch, resulting in endless cooling water, resulting in engine cracks. . Therefore, the farmer should carefully observe the water discharge situation. If the water flow is not smooth, the drain switch should be opened so that the cooling water in the body can be fully discharged.

After the water is discharged, the crankshaft must be cranked several revolutions to drain the water. When the large and medium-sized agricultural vehicles turn on the water release switch, the cooling water in the water tank can often not be exhausted. As a result, a part of the cooling water remains in the water channel, so that there is still a frozen body. Possible. Xue Shaoping said that after the water is drained, the farmer needs to crank the crankshaft several times with humans, and the remaining water will be drained through mutual work between engine parts and cylinders.

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