Home>Knowledge
Multi way directional valve is called multi-way valve for short. It is a combined valve with more than two directional valves as the main body. According to the requirements of different systems, t...
The overflow valve is used for hydraulic excavator with four main functions: 1) It is used in the hydraulic system of the constant displacement pump (gear pump) to keep the pressure of the hydrauli...
Working principle of hydraulic pump: use the constant change of sealing volume to realize oil absorption and pressure. Oil suction condition of the pump: the oil tank is connected to the atmospheri...
Due to the high frequency of use of excavators, most of the excavators often encounter such fault phenomena as abnormal rotation sound, rotation jamming, slow and weak movement during construction....
When the equipment is abnormal, sometimes the corresponding codes will be displayed in the middle of the lower part of the display, and each code has its own specific meaning. Therefore, you can an...
The running deviation of excavator often occurs in the old machine, poor working environment, large potholes and slopes, etc. Excavator model: Hitachi zx870h-3 excavator Causes of Hitachi excavator...
What are the reasons why Kato excavator can not walk in a straight line? The problem of walking fault can be regarded as the most distressed public enemy of the old driver, because there is a probl...
The summer solstice, which means the hottest day of the year is coming! The outdoor ambient temperature is often 30 ~ 40 degrees, which is a severe test for the motor, electric control, battery and...
1. reasons for improvement The hydraulic circuit of the gantry of a 14T forklift is controlled by four reversing valves, of which two reversing valves control the action of the gantry, one reversin...
① The hydraulic pumps of Hitachi excavators are mostly variable piston pumps. After working for a certain time, the internal parts of the pump will inevitably be worn, resulting in internal leakage...
