When using a jack, if the wrong support point is selected, the chassis will be damaged. So, what should you pay attention to when using a jack?
The jack support points of private cars are generally on the inside of the side skirt, like the two fins on either side of the chassis. This fin protrudes from the chassis steel plate and can withstand relatively high pressure. The support point of the front wheel is 20 cm behind the front wheel and 20 cm in front of the rear wheel.
If the jack is supported on the steel plate of the chassis, it may cause unnecessary damage to the chassis. In addition, supporting on the boom and hem is also an incorrect method of operation. If the jack slips during use, the vehicle falls, and the chassis and jack will be damaged.
When lifting the vehicle with a jack, do not start the engine
If the engine starts, the vibration of the engine or the rotation of the wheels will have the risk of the vehicle rocking and sliding off the jack.
In order to ensure safety, various models of cars generally have a fixed position when using a jack, and can not use a jack to support the bumper, beam and other positions.
When replacing the two-wheel outer tire, the inner wheel of the car can be parked on the wood block or stone at the appropriate height, so that the outer tire is suspended for easy replacement, and pay attention to tightening the handbrake.
When replacing the front tire or rear inner tube, use stones or bricks to stabilize the front and rear axle of the car.
In particular, the rocker arm of the car jack is a split structure, and can only be turned after being connected with a matching wrench and bushing. In addition, in the process of lifting the jack, one point should be even, and too much or too much force should be avoided.