Hydraulic lift machines have many advantages, such as: stable, gentle, smooth, safe. Many customers like hydraulic drive mechanism.
However, the hydraulic machine has a drawback, when the machine work for a long time, the table will be a slight subsidence phenomenon, the main reason is because there are impurities in the hydraulic oil, plug the hydraulic valve, the solution is to use gasoline to clean the hydraulic valve, pls look at below video :
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