1. Anti-freeze clearance Every winter, accidents with frozen tractors occur from time to time. Water in the tractor's cooling system will freeze and expand in volume to below 0°C, cracking radiators, tanks, water jackets, and cylinder heads. The reason is as follows: First, after winter, the weather is cold, but the water is not frozen. Therefore, cooling water is often neglected after parking. At this time, if the climate changes abruptly and the temperature drops below 0°C during the night, the cooling water will freeze and freeze and crack the machine. The second is that the machine is not used for a long period of time when it is warm, and it forgets to let go of the cooling water. When it was cold, it did not think of the release of water. Cracks often occurred. The third is when the weather is cold and sloppy, turn on the switch to let the water flow and the person walks away. As a result, the dirt blocks the switch; or only the switch under the radiator is turned on, and some models of the body are left with the drain valve on the body. This can lead to frost cracking. Fourth, the temperature in spring is warming. When the temperature rises above 0°C, no water is released after parking. However, it is not thought that the cold wave has hit during the night and the temperature suddenly changes and the machine is frozen. 2. The diesel oil is divided into five grades of 10, 0, -10, -20, and -35. The number indicates the temperature of the freezing point. For example, the freezing point of 10 is 10°C; the freezing point of the number of -10 is -10°C. When using diesel, the freezing point should be lower than the local minimum temperature of 5 °C. If the local temperature is -5 °C, -10 diesel can be used. Although there is not much difference in the quality indicators for each diesel, the oil supply department cannot mix and store each oil. In winter, the viscosity of the diesel engine oil is large, and it is difficult to start and lubricate. Therefore, the 11th engine oil used in summer should be changed to the 8th motor oil used in winter. The lubricating oil in the gearbox and rear axle shall be replaced with No. 11 oil using diesel engine oil; the use of gear oil shall be replaced by No. 30 and No. 20. 3. Start off Before starting to fully warm up the body, first use the water below 90 °C into the water tank, wait a little, and then reheat the water and release it, after several times, until the released water reaches 30 °C, then add 90 °C The above water can be started. The first time you can not add boiling water, so as to avoid the body is suddenly exposed to high temperatures and was cracked. At the same time as preheating, the oil in the oil pan released after parking should be warmed with charcoal and diluted before being injected into the oil pan. Shake the crankshaft or dry ring to allow the oil pump to work before starting. If the water is not heated and the water is preheated, starting and then adding water may cause the sudden temperature increase of the piston and the cylinder liner to cause the pull of the cylinder liner, or the cold water may be added to crack the cylinder head. Tractor traction or slope starting may cause the clutch and transmission gear to be damaged by impact. If the oil is not warmed, it will cause poor lubrication and increase wear. At the same time, crankshaft rotation is also difficult and it is not easy to start. 4. Safety shutdown After starting, it should idle for a few minutes, cover the water tank insulation curtain, make the water temperature higher than 40°C, and the oil pressure can start after it is normal. After starting, drive at a low speed to warm up the oil in the transmission and in the rear axle housing before loading. In the winter, after the road surface is snow, the adhesion of the tire becomes worse, it is easy to skid, and the speed must be slowed down properly to avoid sudden braking, so as to prevent the vehicle from slipping and tipping over. Once a side slip occurs, the steering wheel should be used at the time of deceleration. Rotate in the direction of the rear wheel and gradually correct it. To climb a slope, use a gear that can be climbed and do not shift gears in the middle to avoid improper operation. Do not pick up the downhill slide, do not brake; the speed should be appropriate, the speed is too slow, may cause the trailer to push the car, causing the side slip rollover.
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