1、判明气液增压缸的工作条件和外围环境是否正常,搞清是设备机械部分或电器控制部分故障，还是气液增压机本身的故障，同时查清气液增压缸的各种条件是否符合正常运行的要求。
1. First, it is clear whether the working conditions and peripheral environment of the gas-liquid turbocharging cylinder are normal. First, it is clear whether the mechanical part of the equipment or the electrical control part of the equipment, or the fault of the air liquid supercharger itself, and check the conditions of the pressurized cylinder of the gas liquid to meet the requirements of the normal operation.
2、区域判断根据故障现象和特征确定与该故障有关的区域，逐步缩小发生故障的范围，检测此区域内的元件情况，分析发生原因，终找出故障的具体所在。
2, regional judgment based on the fault phenomena and characteristics to determine the area related to the fault, gradually reduce the range of the fault, detection of the element in this area, analysis of the causes, and finally find out the specific location of the fault.
3、掌握故障种类进行综合分析。根据故障终的现象，逐步深入找出多种直接的或间接的可能原因，为避免盲目性，必须根据系统基本原理，进行综合分析、逻辑判断，减少怀疑对象逐步逼近，终找出故障部位。
3. A comprehensive analysis of the types of malfunctions. In order to avoid blindness, in order to avoid blindness, a comprehensive analysis and logical judgment must be carried out according to the basic principle of the system to reduce the gradual approximation of the suspect and find out the fault location.
4、故障诊断是建立在运行记录及某些系统参数基础之上的。建立系统运行记录，这是预防、发现和处理故障的科学依据；建立设备运行故障分析表，它是使用经验的高度概括总结，有助于对故障现象迅速做出判断；具备一定检测手段，可对故障做出准确的定量分析。
4, fault diagnosis is based on operation records and certain system parameters. It is the scientific basis for the establishment of system operation record, which is the scientific basis for the prevention, discovery and treatment of faults; the establishment of the breakdown analysis table of the equipment operation is a summary of the use of experience, which helps to make a quick judgment on the failure phenomenon, and has certain detection means to make accurate quantitative analysis of the fault.
5、验证可能故障原因时，一般从可能的故障原因或易检验的地方开始，这样可减少装拆工作量，提高诊断速度。
5. When the cause of the possible failure is verified, it usually starts from the most likely cause of failure or the most easily tested place. This can reduce the load and increase the speed of diagnosis.
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