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(1)询问法一般有6问:一问液压系统近期工作有哪些异常现象,二问液压油最近的更换日期、更新油的品牌及标号,旧油的油样分析报告及滤网的清洁情况等;三问故障出现前,调压阀、调速阀、溢流阀、手动变量泵或马达等哪些元件调整过,怎样调整的,以及调整过程中伴随的现象;四问故障出现前,液压元件是否维修或更换过,维修过程中是怎样拆卸、清洗、检查、修理、装配、调试的;五问故障出现前后,机器在作业过程中有哪些差别,例如:作业效率等的差别;六问机器在以往使用过程中常出现哪些类型故障及排除经过,分析本次故障是否与其有关。
(1) Questioning Method Generally, there are 6 questions: First, what are the abnormalities in the recent work of the hydraulic system, 2, the latest replacement date of the hydraulic oil, the brand and label of the updated oil, the oil analysis report of the old oil and the cleanliness of the filter Three questions asked before failure, pressure regulating valve, speed control valve, relief valve, manual variable displacement pump or motor and other components adjusted, how to adjust, and the adjustment process accompanied by the phenomenon; Fourth, before the failure occurs, hydraulic How to disassemble, clean, inspect, repair, assemble and debug during the repair process after the components have been repaired or replaced? What are the differences in the operation of the machine before and after the malfunction occurs? The machine in the past often appear in the course of what type of failure and troubleshooting, analysis of the fault is related to it.