1, the correct choice of cutting height. According to the crop yield, height and maturity, timely adjustment of the harvester's forward gear, cut width and cutting height, to minimize long-term overload operations. 2, a reasonable choice of job speed. When the crop is mature, the ground is flat, the straw is relatively dry, sparse, and there are few weeds, the walking speed should be faster. After the rain or morning and evening, the dew is large, the straw is wet, the weeds are more, the plant density is high, and the high-yielding grain is good. The walking speed must be slower. 3, grasp the direction of driving. The forward direction of the combine harvester should follow the direction of crop sowing, and strive to maintain a straight line, allowing only minor corrections. If the crop is lodging, it is advisable to harvest from the side of lodging to reduce header loss. 4. Be careful when adding cooling water. When adding cooling water, seal the mouth of the tank with multi-layer gauze and fix it with lead wire to prevent crops and dust from entering the water tank. When adding cooling water, the radiator should not be wetted, and water should not be poured onto it. 5, to add lubricants in a timely manner. If the oil is not added in time, the oil level of the oil pan will be too low, resulting in high oil temperature and poor lubrication. If the oil level of the oil pan is lower than the lower scale of the oil scale, the combine harvester may expose the oil filter to the oil surface, so that the oil pump cannot draw in air to supply oil, causing serious accidents such as burning tiles. 6. Maintain before and after each operation. Remove mud, sand and dust from the outside of the machine; check whether the external connection bolts are firm; whether diesel oil, lubricating oil, and water are sufficient, whether there is water leakage or oil leakage; lubricate all parts according to regulations; check and adjust the tightness of the transmission parts. Degree and so on. Cervical Tractor,Tractor Cervical,Cervical Vertebra Tractor,Cervical Traction Tractor Hebei Dingli Medical Apparatus and Instrument Co., LTD , https://www.dinglimed.com