一台手扶拖拉机在机耕作业时发生了齿轮室侧主轴瓦烧瓦故障。机手在检查了润滑油油量油质、油泵、油管及油管接头连接、机油滤清器、润滑油路、曲轴离心净化室等都正常的情况下更换了轴瓦,短时间试运转,工作正常;但重新下田进行机耕作业没多长时间又再度烧瓦。那么烧瓦故障到底是什么原因引起的呢?后经仔细检查,发现是由于飞轮侧的主轴瓦已过 A walking tractor in the tilling operation gearbox side spindle bush burning tile failure. The hand was checking the lubricant oil quality, oil pump, tubing and tubing connections, oil filters, lubricants, crankshaft centrifugal clean room and so on are all normal replacement of bearing bush, a short trial run, working properly However, it did not take long before the farm machinery was re-shredded. So what is the cause of the bush fault? After careful examination, it is found that the flywheel side of the main bearing bush has passed