The concrete is easy to dry, so it is necessary to use the concrete mixer truck during the transportation, especially for the long-distance transportation, because the mixer truck can not only realize the long-distance transportation, but also continuously mix the concrete in the transportation process. Don't let it dry to powder. During this period, the tires are often in contact with the ground. How to judge whether the mixer tire should be changed:
1. Tread depth of tire
The thickness of tread pattern must be greater than 1.6 mm. If you often drive on wet roads with low friction, you can ensure that the tread pattern thickness is twice the above value.
2. Tread pattern wear indicator line
Wear indicator line of tread pattern of concrete mixer truck. When the wear reaches a certain level, the indication lines hidden in the tread grooves appear. The tread pattern wear indicator line is a flat rubber strip, which is embedded in the tread groove vertically with the tread. If almost all of the indicator lines on the tire are clearly visible, it means that you need to change the tire as soon as possible.
3. Tire sidewall crack
The problems existing in the tire are not all concentrated on the tread, and there are also some problems on the sidewall of the tire. Look for cracks and cuts on the sidewall of the tire that are visible to the naked eye. These small grooves indicate that there may be air leakage cracks on the tire in the future, and even cause the tire to burst. Therefore, it is recommended to replace the tire when the sidewall crack is serious.
4. Bumps and blisters on tires
In some cases, the outer surface of concrete mixer tire will bulge and blister higher than the normal tire surface due to insufficient strength. This is just like an aneurysm in a blood vessel. If the tire is not repaired in time, the area with insufficient strength on the tread may cause a sudden burst.
If it is found that the tire of the concrete mixer meets one of the above conditions, it means that the tire should be replaced. No matter whether the tire is burst or how long it takes, the tire that needs to be replaced should be replaced with a new one to ensure driving safety.
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