Know what is the screw jack and how to use it, then what should you pay attention to when using the screw jack? This is also crucial for us who often use jacks. It enables us to better understand the screw jacks, thus reducing unnecessary troubles during use.

The specific precautions for the screw jack are as follows:

First, always keep the surface of the screw jack clean, regularly check whether the internal structure is intact, make the pinion in the rocker flexible and reliable, and lift the lifting sleeve freely.

Second, the friction surface between the lifting sleeve and the housing must be oiled at any time. Other oil filling holes should be lubricated regularly.

Third, in order to take into account the safety in use, the jack should not be overloaded, work with illness, it is not appropriate to use more than one to avoid danger.