1. Replace the oil but do not clean the oil gallery. Some agricultural operators lack maintenance knowledge and do not clean the oil passage when replacing the oil. It should be noted that after the lubricant is used, many mechanical impurities remain in the oil. Even if the lubricant is exhausted, impurities still remain in the oil pan and the oil passage. . If you do not clean it and you are eager to put it into use, it is very easy to cause accidents such as burning tiles and holding shafts.
2. The oil is replenished but the quality inspection is ignored. The long-term use of the harvester oil contains a large amount of oxides and metal shavings, resulting in reduced lubricating performance and increased wear of parts. Therefore, the engine should be regularly changed according to the specified cycle.
3. Add water but never remove scale. Although part of the harvester's driver has a sense of water, he never cleans the scale in the tank. As a result, the cooling water is sufficient, but the cooling effect is poor, causing multiple failures.
4. Do not clear the carbon deposit in the exhaust pipe. This will result in too thick carbon deposits, reduced cross-sectional area of ​​the exhaust gas, exhaust gas exhausts, insufficient fresh air, and poor combustion.
5. Install the piston and warm it with an open flame. The uneven thickness of each part of the piston, the thermal expansion and contraction of different degrees, easily lead to deformation. If the piston is heated to a certain high temperature with an open flame, the metal structure will be damaged and the wear resistance will be reduced after the natural cooling, and its service life will be greatly shortened.
6. Apply butter when installing the cylinder head gasket. Many agricultural machine operators are accustomed to applying butter when installing cylinder head gaskets. They believe that this can increase the airtightness of cylinders. They do not know that this is counter-productive. Because of the loss of butter after high temperatures, gaps between cylinder pads, cylinder heads and the plane of the body, high-temperature and high-pressure gas can easily be impacted from here, destroying cylinder mats and causing air leakage.
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