Hydraulic system working pressure

Hydraulic system working pressure
Hydraulic system working pressure is generally 20 to 25 MPa. Troubleshooting construction hydraulic valve block at the pump shaft extension is due to wear and tear caused by leakage or emissions reduced. Whether gear pump or piston pump, 80% of its internal leakage is due to wear and tear caused by the axial sealing surface, can be solved by grinding. Failure of the hydraulic cylinder connected to the more performance for leakage or internal leakage. After being brushed hydraulic cylinder piston rod, cylinder head seals wear out quickly at the produce leakage; guide sleeve eccentric wear out of round, when it roundness error than 0.20mm will lead to leakage; seals aging also cause one reason for leakage of. In addition to replacing the seals, but also pay special attention to maintenance of the hydraulic cylinder when the amount of wear on the bearing piston ring wear is large and should be replaced. If emergency treatment, padded thin material between the support ring and the piston, the piston and cylinder in order to avoid direct contact with the cylinder caused by the pull. To avoid straining the cylinder, the support ring and the guide sleeve make the best use of non-metallic materials. By contrast the piston rod is easy to handle. If it is a large area of the nap, the cylindrical grinder can be polished rod will then hard chrome plated .05 thick. It is possible to reduce the diameter of nearly 1mm, increasing the thickness of this case can be the corresponding guide sleeve, the remainder of the cylinder head structure size even without change, will also have a good sealing effect. If you are a local or a hardened layer peeling bumps, you can use ordinary carbon steel welding rod fill the lesion.