1. Take the jack out of the car.
2. Find the support point for jacking up the car under the door panel of the car side body.
3. Put the jack on the top column, and there should be no sundries under the jack.
4. Raise the jack. The jack must not be skewed and must be straight.
5. Use the rocker to lift the jack, clockwise to lift, and counterclockwise to loosen the jack.
6. The top column under the chassis can be topped with steel plates and beam frames. When topping, be careful not to hit the oil pipes, lines, and the height of the top should not be too high.
7. Improper position of the top will rot the frame, even if the car falls to the ground, the top time should not be long. Repair it as soon as possible and put down the jack. If it is topped for a long time, it is best to put the spare tire below, so as to prevent the car from falling.