When repairing the car, you need to place the jack on the bottom of the car, find the point of focus and then lift the car up. Note that the jack should be placed vertically. During the lifting operation, the handle should be shaken with even force to avoid accidents and damage to the jack caused by up and down impact. The jacking height should not exceed the mark on the sleeve or piston. After the car is jacked up, observe that the car remains stable and then repair the car.

After the repair of the car is completed, slowly lower the screw jack, and try not to shake the car to ensure its safety. The used jack should be cleaned up and placed in the trunk for the convenience of next use.