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1经验法(1)问诊。除驾驶员自己外,任何人在诊断故障之前,必须问明情况,如拖拉机作业量、近期保养情况、拆装调整部位、故障发生前有何征兆以及是突变还是渐变等。(2)听诊。驾驶员在没有检测工具的情况下,根据拖拉机工作时声响特点,可大致判断配合件的技术状态。(3)观察。观察拖拉机外部机件与总
1 experience (1) ask the doctor. Except for the driver himself, any person must ask about the condition of the tractor before diagnosing the problem, such as the tractor’s work load, recent maintenance, disassembly and adjustment of the site, any signs of failure, and whether it is abrupt or gradual. (2) Auscultation. The driver in the absence of testing tools, according to the characteristics of the tractor when the sound can be roughly determine the technical status of the mating parts. (3) observation. Observe tractor external parts and total