(1) must be qualified products produced by formal manufacturers. Before using, you should be familiar with its separate Jack performance, characteristics and usage methods, and use it strictly according to the rated weight of the jack.

(2) keep separate Jack clean and put it in a dry and dust-free place. Clean the Jack before use, and check whether the piston is lifted and lowered, whether each component is flexible and reliable, and whether the injected oil is clean.

(3) when using separate Jack, it is forbidden for the staff to stand in front of the safety bolt of the jack. If the safety Bolt is damaged, it shall not be used.

(4) it should be perpendicular to the top and have better contact surface.

(5) separate Jack liters of heavy objects cannot be placed for a long time, and cannot be used for storing objects.

(6) when using, the place should be flat and solid. If it is on uneven or soft ground, a base plate with a certain strength should be laid.

(7) the pipe shall not be crank on the box-lock of the jack, or the length of crank shall be lengthened by any other method.

(8) the height of separate Jack liters shall not exceed the limit Mark line. If there is no mark line, it shall not exceed three quarters of the height of the screw rod buckle or piston. The spiral thread or rack wear up to 20% is strictly prohibited.