There are many specifications and models of screw jacks, which are suitable for the lifting work of most vehicles. However, the jack cannot be arbitrarily adapted to the lifting position of the vehicle, and for the safety of the vehicle and the use of the jack, there is a fixed lifting position on each type of vehicle.

Generally speaking, the lifting position of a family car is located at the bottom of the body, usually on the inner side of the side skirt, like the two fins on both sides of the chassis, about 20 centimeters behind the front wheels and about 20 centimeters in front of the rear wheels. This fin protrudes from the chassis steel plate and can withstand relatively high pressure, serving as a dedicated support point for the jack.

Other places are not suitable for lifting with a screw jack. If the jack is supported on the steel plate of the chassis, it is likely to cause damage to the chassis.

In addition, supporting the lower arm of the suspension is also an incorrect operation. If the jack slips and the vehicle falls down, both the chassis and the jack will be damaged. It is also not advisable to use the jack to support the bumper, crossbeam, and other parts of the vehicle. This not only fails to lift the vehicle, but also damages important parts of the car.