Manual hydraulic pump pressure is not what is the reason

In the early 21st century in our country, our electromechanical industry through the introduction of foreign advanced assembly and fastening technology, while the use of high-strength hydraulic nut, hydraulic tensioners, as the source of simultaneous introduction of high pressure manual hydraulic Pump. As a simple and convenient hydraulic power source, EHV manual hydraulic pump is widely used in many fields such as shipbuilding industry, coal mining machinery, petrochemical industry, metallurgy, electric power and heavy machinery. And its small size, light weight, easy to carry, security and other advantages are accepted by the majority of users. Manual hydraulic pump prone to pressure in the use of the situation, this issue has been more and more people's attention. Manual hydraulic pump pressure is not what is the reason Manual hydraulic pump pressure is not what is the reason: 1, may be manual piston and hole strain, then need to do is to open the handle and open the grinding hole and plunger. 2, check the spring is not broken, so easy to plug the plunger. 3, one-way outlet port blocked. The working principle of the manual hydraulic pump to convert the mechanical energy of the power machine into liquid pressure energy, which is the same as the working principle of the pump used in our daily life. When the piston rod is extended, the check valve on the oil suction channel is opened and the row When the piston rod is retracted, the one-way valve on the oil sucking passage is closed and the one-way valve on the oil discharging passage is opened to complete the oil draining process. The main function of the manual hydraulic pump is that when there is no power source failure of the power source, the actuator reaches a certain position through the manual hydraulic pump.