Hydraulic universal testing machine hydraulic components installation should pay attention to what

Hydraulic universal testing machine is a large load, high practicality of the universal testing machine, the following hydraulic components installation precautions, there are mainly the following four aspects: First, the hydraulic components of the hydraulic universal testing machine before installation, to use kerosene cleaning, the test pressure can be twice the working pressure, or take the highest use of pressure 1.5 times. The test should be carried out in stages, do not rise to the test pressure at once, and check once every level. Second, check whether the sealing ring at the oil inlet and outlet meets the requirements. Before installation, the sealing ring should be prominent on the installation plane to ensure a certain amount of compression after installation to prevent leakage. Third, the direction control valve (the control element used to change the flow of gas or liquid in the channel is called the direction control valve) should ensure that the axis is arranged in a horizontal position. Fourth, the fastening force of each screw of the hydraulic system of the hydraulic testing machine should be uniform, so that the installation plane of the component is in good contact with the base plane of the component.