1. In order to avoid possible oil leakage due to distortion. When installing o-rings, do not pull them to the point of permanent deformation, and do not roll them over the edge.

2. V-shaped sealing ring is composed of supporting ring, sealing ring and pressure ring with different shapes. When the pressure ring is pressed on the sealing ring, the supporting ring can make the sealing ring shape and play a sealing role.

When adjusting the pressure ring, it shall be limited to no oil leakage and shall not be pressed too tightly to prevent excessive sealing resistance. For Y - shaped seal ring, the lip should be in response to the pressure of the oil chamber; Yx seal ring also pay attention to the area

Split shaft or hole, do not install the wrong. In addition, when installing Y - shaped and V - shaped seal ring, pay attention to its installation direction to avoid oil leakage.

3. If the sealing device is matched with the sliding surface, an appropriate amount of hydraulic oil shall be applied during assembly.

4, after the removal of o-ring seal and dust ring should be replaced.

5. When the hydraulic cylinder is installed on the main machine, sealing rings must be added and tightened between inlet and outlet joints to prevent oil leakage.

Finally, it is tested: after the assembly is completed, the piston components should move without the phenomenon of retardation and uneven resistance, etc., piston and piston rod assembly, we must try to measure its coaxiality and straightness in the full length is out of tolerance. After assembly as required, reciprocate several times under low pressure to remove the gas in the cylinder.