液压系统有哪些常见故障的诊断方法?

 A 简易故障诊断法

(4)彩涂板通过温升、振动、爬行及连接处的松紧程度判定运动部件工作状态是否正常。

 B 液压系统原理图分析法

根据彩涂板液压系统原理图分析液压传动系统出现的故障，找出故障产生的部位及原因，并提出排除彩涂板故障的方法。结合动作循环表对照分析、判断故障就更容易。
 C其他分析法

液压系统发生故障时根据液压系统原理进行逻辑分析或采用因果分析等方法逐一排查，最后找出发生故障的部位，这就是用逻辑分析的方法查找出故障。为了便于应用，故陈诊断专家设计了逻辑流程图或其他图表对故障进行逻辑判斯，为故障诊断提供了方便。

A simple fault diagnosis method

(4) The working state of the moving parts is judged by the temperature rise, vibration, crawling and the tightness of the joints.

B hydraulic system schematic diagram analysis method

According to the principle diagram of the hydraulic system of the color coating board, this paper analyzes the faults of the hydraulic transmission system, finds out the parts and causes of the faults, and puts forward the methods to eliminate the faults of the color coating board. Combined with the action cycle table, it is easier to analyze and judge the fault.

C other analytical methods

When the hydraulic system breaks down, the logic analysis is carried out according to the principle of the hydraulic system or the cause and effect analysis is used to check one by one. Finally, the fault location is found out, which is to find out the fault with the method of logic analysis. In order to facilitate the application, Chen diagnosis experts designed logic flow chart or other charts to judge the fault logically, which provides convenience for fault diagnosis.