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Question:

There are several reasons for the hydraulic cylinder oil leak on the elevator

There are several reasons for the hydraulic cylinder oil leak on the elevator

Answer:

The sealing part of the seal is worn out to buy two oil seals according to oil cylinder model to change to be good also a few dollars
Internal leakage 1) wear-resisting ring on the piston is badly worn, causing friction between the piston and the cylinder liner, and finally pulling the casing, piston and seal. Sealing long term failure, piston seal (mostly U, V, Y ring, etc.) aging; 3) the hydraulic oil is dirty, and a large amount of impurities enter the cylinder to seal the piston seal to the bad.
Oil cylinder in and out tubing joint cracking; (I've seen a lot of this in practice.) 2) the sealing damage of the piston rod with the piston rod is caused by the pull of the piston cylinder. 3) cooperate with cylinder liner piston rod out end seal is damaged, this is caused by long-term use of seal aging more, also has a lot of end cover on is too hard to seal extrusion is damaged, there is a lot of domestic manufacturer of hydraulic cylinder design is not reasonable cause (mostly in order to save costs)

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