In fact, pneumatic tire repair is divided into pneumatic tire repair and pneumatic tire repair. “Pneumatic tire repair” is a kind of pneumatic tools. When repairing tires, pneumatic tools are used to screw the tires, which is much faster than manual tire repair. Therefore, many tire repair shops use “pneumatic tire repair” to attract customers, indicating that their tire repair speed is very fast. It’s necessary to use this kind of air cannon if it’s a big truck or bus. After all, the tires are big and the screws are thick, and it’s also very resistant to rotation. But if it’s a car, many experienced tire shopkeepers don’t recommend it. Why?
Because the strength and speed of the wind cannon are actually not easy to control, if the technique is not skilled, only two situations will occur:
1. It is impossible to completely tighten the screw, and if it is not reinforced with a manual wrench afterwards, it will easily shake or even fall off when driving;
2. It’s the excessive force that causes the screw to slip, so it’s not a tire change problem. Maybe the entire brake disc should be replaced. As early as this, some tire shops often used pneumatic cannons to repair tires, so that after the customers’ cars were driven for a period of time, the tires came off directly. Long-term use of air cannon in the tire of a bus in a certain place caused cracks in the screw due to pulling and vibration, which eventually led to a serious accident.
This situation is frightening when it happens on the highway, and if it happens on the highway, the consequences will be unimaginable 2.
So how to judge whether the screw is loose or not? The method is very simple, that is, when the tires are loaded, take some downhill roads. Gently brake when going downhill. If the tire screw of the car is loose, it will make a slight cough sound. If the screw of the rear wheel is loose, the sound of the wheels will pass through the trunk and be louder.
When the wheel hub screws are loose badly, the wheels will swing when they are driving, and when the speed is slow, you will hear obvious clicking sound. If such a phenomenon occurs, you should immediately find a suitable place to stop and check whether the wheel hub screws are loose.
Therefore, although air cannon tire repair is good, it needs to be used with caution, especially for small vehicles!
Post time: Jun-29-2022
