A bogey release the water prematurely or without cooling water. Run at idle speed before turning off, until the temperature of cooling water falls below 60°C, the water is not hot, and then turn off the water. If the cooling water is discharged prematurely, the body suddenly suffers sudden shrinkage and cracks when it is exposed to cold air. When the water is drained, the residual water in the body should be completely discharged to prevent the ice from expanding and the body can burst. Second bogey choose fuel oil casually. The low temperature in winter deteriorates the fluidity of diesel oil, increases the viscosity, and does not easily spray, resulting in poor atomization and combustion deterioration, resulting in a decrease in the dynamic and economical performance of the diesel engine. Therefore, light diesel oil with low freezing point and good ignition performance should be used in winter. General requirements for the freezing point of the diesel engine should be lower than the current local minimum temperature of 7-10 °C. Three avoid using open flame combustion start. Can not take off the air filter, with cotton yarn ignited on diesel fuel made of firelight placed in the intake pipe to start combustion. In this way, during the start-up process, the external dust-laden air will be directly sucked into the cylinder without filtering, causing abnormal wear of pistons, cylinders and other parts, and can also cause the diesel engine to work rough and damage the machine. 4. Avoid using an open flame to bake the oil pan. In order not to deteriorate the oil in the oil pan, or even scorch, the lubrication performance is reduced or completely lost, which intensifies the wear of the machine. In winter, oil with a low freezing point should be used, and the temperature of the oil can be increased by using a method of warming the outside bath. Five bogey start method is improper. In winter, some drivers are able to quickly start the diesel engine and often use the non-normal starting method of waterless start (first start, followed by cooling water). This practice can cause serious damage to the machine and should be prohibited. The correct method of preheating is as follows: first heat insulation is covered on the water tank, open the drain valve, and continuously inject 60-70°C clean soft water into the water tank, touch the water discharge valve with hand to feel hot, then close the drain valve, Fill the tank with clean soft water of 90-100°C and crank the crankshaft so that the moving parts are properly pre-lubricated and then start again. Six avoid cold load operation. After the diesel engine started to catch fire, some drivers could not wait to immediately put into load operation. In a diesel engine that is on fire soon, due to the low temperature of the engine body and the large viscosity of the engine oil, the engine oil cannot be easily charged to the friction surface of the moving pair, causing serious wear and tear on the machine. In addition, plunger springs, valve springs and injector springs are also susceptible to breakage due to "cold and brittle". Therefore, after the diesel engine starts to catch fire in winter, it should be idling at a low speed for a few minutes, and when the temperature of the cooling water reaches 60°C, it will be put into load operation. Seven bogey do not pay attention to body insulation. The low winter temperatures make it easy to overcool the diesel engine during operation. Therefore, insulation is the key to using diesel engines in winter. In the northern regions, diesel engines used in winter should be equipped with cold-insulation equipment such as thermal insulation and insulation curtains. In addition, the thermostat plays an important role in the warming of the diesel engine during operation. Therefore, it is necessary to check whether the thermostat is working properly before entering the winter, and the thermostat that has failed should be replaced in time.
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