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In hot summer, construction machinery and equipment are more likely to cause hidden dangers. Therefore, the maintenance in summer is of great significance to the safe use of construction machinery ...
1. relevant operating instructions shall be placed in a place where they can be seen at any time, and the operators shall be trained or work under the guidance of professionals. 2. there shall be n...
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...
