The spare tire of semi-trailer should not be "conserved"
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We must regularly inspect the spare tire. Before daily maintenance or long-distance travel, we should check the spare tire for wear or cracks. If it has worn to the mark line, it should be replaced as soon as possible. If there is a small crack on the sidewall, it cannot be used to run long distances or high speeds, because the thin tire sidewalls are prone to puncture when running at high speed. If the repaired tires are to be used again, the vehicle must be placed on the rear wheels regardless of the driving mode. This is because the risk factor after the front tire burst is relatively higher, so the repaired tires are placed on the rear wheels. It will be relatively safe. Do not put together with corrosive items, because the main component of the tire is rubber, and rubber is most afraid of all kinds of oil erosion. Some owners often store similar oils such as lubricating oil in the trunk. When these oils touch the tires, the tires will distort to a certain degree, which will greatly reduce the service life of the tires.
In fact, spare tire care can not be ignored, spare tires that can help you in the emergency, the same need we usually double their care.