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1. Do not start the fire and add cold water. After the start of the agricultural vehicle, the temperature of the engine body rises sharply and the instantaneous temperature of the combustion chamber can reach more than 100°C. If cold water is suddenly added to the water tank at this time, cracks may easily occur in the cylinder head cover and the vortex chamber insert of the engine due to rapid cooling, and the piston, the connecting rod, and the like may also be deformed. The correct method is to fill the tank with 80°C hot water before starting.
2. Don't rush to put water after the agricultural truck operation. The winter temperature is low. The outdoor temperature is generally about 0°C. The temperature in the north will be lower. The agricultural vehicle operation is completed. If the flame is just turned off, the cooling water will be released. At this time, the temperature of the body is as high as 90°C. Left and right, with a large temperature difference from the outside, the water tank, engine parts, cylinder heads, etc. will be cracked due to excessive cooling speed. The correct method is to allow the engine to run at idle speed for 5 to 6 minutes. After the temperature of the standby body drops to 50°C to 60°C, the cooling water is discharged.
3. Pay attention to the observation of the release of water when the long-term use of agricultural vehicles, scale, impurities and other easily deposited in the water switch, resulting in switch clogging, resulting in cooling water put in endlessly, causing the engine to crack. Therefore, when the agricultural vehicle is used for water discharge in winter, the operator should carefully observe the water discharge situation at the side of the machine. If the water flow is not smooth, the drain switch should be opened to allow the cooling water in the body to be fully discharged.
4. When the water is discharged, the crankshaft must be cranked for several revolutions to turn the water out of the large and medium-sized agricultural vehicles. When the water release switch is turned on, the cooling water in the tank is often not exhausted. A part of the cooling water remains in the water channel, and there is still the possibility of freezing the body. . Therefore, after releasing the cooling water in the water tank in winter, it is necessary to crank the crankshaft several times to drain the water in the water channel.
In winter, the weather is cold, and the working conditions of agricultural vehicles are deteriorating. If improper cooling water is used, the body is easily damaged. Therefore, the winter water for agricultural vehicles should pay attention to the following matters.