Under the condition of the same structure and size, the diesel engine can obviously improve the power, increase the torque, reduce the fuel consumption and reduce the exhaust pollution, especially in the plateau area. During the working process, the speed of the supercharger is as high as tens of th......
Read MoreThe set pressure of the hydraulic system of the excavator is 30MPa, and if it is less than this pressure, the system pressure is low. The failure of the hydraulic system is mainly manifested in two aspects: the boom is lifted slowly and weakly; the rotation is slow and weak. The main reason for the ......
Read MoreThe relief valve is a hydraulic pressure control valve, which mainly plays the role of constant pressure relief, voltage stabilization, system unloading and safety protection in hydraulic equipment. During the assembly or use of the relief valve, due to the damage of the O-ring and the combined seal......
Read MoreThe tensioner is divided into accessory tensioner (generator belt tensioner, air conditioner belt tensioner, mechanical supercharger belt tensioner, etc.) and timing belt tensioner according to the location of occurrence. The tensioner is mainly divided into mechanical automatic tensioner and hydra......
Read MoreThe replacement or misuse of excavator accessories is common, regardless of the type of accessories. During repairs, replacement or misuse of spare parts is still common. Emergency replacement of some spare parts is feasible, but there is no benefit in long-term use, affecting the safety and technic......
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