The system works, you can turn all circuits are numbered. If the first actuator is numbered 0, the identifier associated with the control element was 1. If the corresponding element actuator extends identifier is even, then the corresponding element identifier retraction actuator was odd. Not only to deal with the hydraulic circuit are numbered, the actual device should also be numbered in order to detect system failures. DIN ISO1219-2 standard defines the number of constituent elements, which include the following four parts: device number, loop number, element identifier and device number. If the entire system is only one device, you can omit the device number. In practice, another way is to number all the components of the hydraulic system were numbered consecutively, this time, element number should be consistent with the member list number. This method is particularly suitable for complex hydraulic control system, Henan hydraulic automation equipment, each control loop has a number that corresponds to its system. The basic idea is a comprehensive analysis evaluated. That maintenance personnel by observing, listening, touching and simple test and hydraulic systems to understand, empirically determine the cause of failure. When the hydraulic system fails, there are many possible root cause. Algebraic methods using logic, the list of possible causes of failure and difficult one by one according to the principles of logic is easy after the first judgment, itemized approach, ultimately identify the cause of the failure and the specific conditions that cause failure. Troubleshooting process requires maintenance personnel with basic knowledge and analysis of hydraulic systems strong ability, can only be assured efficiency and accuracy of diagnosis. However, the diagnostic process is relatively complex, subject to a large number of checks, verification, and only qualitative analysis, diagnose the cause of the fault is not accurate enough. In order to reduce blindness and empirical fault detection and dismantling work, the traditional fault diagnosis method has been far can not meet the requirements of modern hydraulic systems. With hydraulic systems to large-scale, continuous production, automatic control direction, and the emergence of a variety of modern fault diagnosis. Spectrum technology such as iron off the number can be separated from the oil out of a variety of grains, shape, size, composition and distribution, etc., hydraulic automation equipment design, timely and accurately determine the wear parts of the system components, form of degree. But also of the hydraulic oil contamination quantitative analysis and evaluation, so that line detection and fault prevention. Diagnosis is based on artificial intelligence expert off, where there is production of hydraulic automation equipment, there are ways through the computer to mimic the experience of experts to solve problems in a field. The man-machine interface input Symptom computer, the computer based on the phenomenon of input and knowledge in the knowledge, hydraulic automation equipment, the reason for the malfunction can be calculated, and then outputs the reason for man-machine interface, and propose preventive maintenance program or measures . These methods to the hydraulic system fault diagnosis bring a broad prospect, to the hydraulic system fault diagnosis automation foundation. However, most of these methods require expensive testing equipment and sophisticated sensing control systems and computer processing systems, some methods study has certain difficulties, generally not adapted to promote the use of the site. Here's a simple, practical hydraulic system fault diagnosis. Hydraulic automation equipment prices, hydraulic automation equipment, provided by the Texas subfamily subfamily hydraulic machinery automation equipment Limited. Texas subfamily Hydraulic Machinery Automation Equipment Co., Ltd. (dzykzdh.com) strong, credible, in Dezhou industrial automation control systems and equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead subfamily automation equipment into the brilliant and you work for a better future!