On the other hand, when the hydraulic equipment system fails, it is also very important to be able to quickly find the cause and effectively solve it. The hydraulic equipment is composed of mechanical, hydraulic, electrical and instrumentation devices. Therefore, when analyzing the failure of the hydraulic equipment system, it is necessary to understand the transmission principle, structural characteristics, components and material configuration of the entire hydraulic system. Since the hydraulic equipment system is a sealed and pressurized system, the flow of oil in the pipeline, the movement of the internal parts of the hydraulic component and the damage of the seal are not easy to observe, so it is difficult to analyze the cause of the failure and judge the location of the failure. There are many reasons for the failure of hydraulic equipment systems such as metal balers, metal shears, and metal chip briquetting machines. Most of the reasons are: mechanical failure of the equipment---such as the unreasonable design of the hydraulic equipment system and the incorrect installation clearance. The quality problems of hydraulic components, improper selection of seals, and operating errors cause hydraulic system failures. This means that the hydraulic equipment system is caused by improper operation by the operator during normal operation, such as the wrong operation sequence or the wrong opening and closing of the valve, and normal operation When the power supply is suddenly interrupted, the temperature or pressure of the hydraulic oil is too high during work, no action is taken, the wrong oil is added when refueling, and the existing oil volume of the oil tank is too much or too little. In addition, the quality of the hydraulic oil causes the failure of the hydraulic equipment system. This is mostly caused by improper oil selection or the use of unqualified oil. It may also be caused by the hydraulic oil being used for a long time, and the new oil is not replaced in time.
