【Car owner's car knowledge】When the vehicle is jacked up, the engine must not be started, because the vibration of the engine or the rotation of the wheels will cause the vehicle to slip off the jack and cause danger. In order to ensure the safety of various types of cars, the jacks generally have a fixed position when using the jacks, and the jacks cannot be used to support bumpers, beams and other parts.
Auto mechanics must never work under an unsupported vehicle, and passengers must not linger on the vehicle while changing wheels, as their movement may cause the vehicle to slip off the jack. If there is no jack when changing the tire, different emergency measures can be taken according to the position of the tire being replaced.
When replacing the outer tires of the two wheels, the inner wheel of the car can be parked on a wooden block or stone with a suitable height, and the outer tire can be suspended in the air for replacement. Pay attention to tighten the handbrake and plug the front wheel. When replacing the front tires or rear inner tires, use stones or bricks to stabilize the front axle and rear axle of the car, and dig holes under the tires to be removed so that the tires can be suspended in the air for replacement.
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