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How to install the seal

August 8, 2022

Install and use

The installation and use of the sealing ring should pay attention to:

(1) Prevent forced installation. Can not be knocked in with a hammer, but use a special tool to press the sealing ring into the seat hole, and then use a simple cylinder to protect the lip through the spline. Before installation, apply some lubricating oil to the lips to facilitate installation and prevent burns during initial operation. Pay attention to cleaning.

(2) Do not install in the wrong direction and damage the lip. If there are scars of more than 50μm on the lip, it may cause obvious oil leakage.

(3) Prevent overdue use. The service life of the rubber seal of the dynamic seal is generally 3000-5000h, and the new sealing ring should be replaced in time.

(4) The size of the replacement sealing ring should be the same. It is necessary to strictly follow the requirements of the manual and choose the same size of the sealing ring, otherwise the requirements such as compaction cannot be guaranteed.

(5) Avoid using old sealing rings. When using a new sealing ring, it is also necessary to carefully check its surface quality to ensure that there are no defects such as small holes, protrusions, cracks and grooves, and that it has sufficient elasticity before use.

(6) During installation, all parts of the opened hydraulic system should be cleaned strictly first, and special tools should be used to prevent fingers from being scratched by sharp metal edges.

(7) In order to prevent oil leakage caused by damage, it must be operated in accordance with the regulations, and at the same time, the machine cannot be overloaded for a long time or run in a relatively harsh environment.
(8) When replacing the sealing ring, strictly check the groove of the sealing ring, remove the dirt, and polish the bottom of the groove.



1. Clean the installation location;

2. Remove the burrs during the installation movement of the seal;

3. Apply lubricant on the seals;

4. Protect the sealing surface from damage;

5. Check to confirm that the size of the seal is correct;

6. Use corresponding tools to install the seals that need to be deformed and installed.

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