The concrete mixer has a lot of load, and the road conditions are mostly very poor. The appearance that the tire is cut and scratched by foreign matters and sharp objects on the road simply occurs. The operation at high temperature is also a big test for the concrete mixer tire. The service life of the concrete mixer truck is reduced, not to mention, the tire burst occurs from time to time. Nowadays, tires are more expensive. If there is only a small crack, it can be corrected and a lot of money can be saved. However, if there is a big crack and for the sake of safety, it is better to replace it with a new one.

　　关于修补工来说，若是初次修补没有经验，都是先用废旧轮胎做试补，修补时常常查看补胎机温度是不是正常，气囊压力是不是正常。运用打磨机时须带上防护眼镜;打磨时握紧打磨机轻打避免反弹。下面是补轮胎的详细步骤，我们能够参阅一下：

　　As for the repairman, if he has no experience in the first repair, he will first use the waste tires for trial repair. When repairing, he often checks whether the temperature of the tire repair machine is normal and whether the pressure of the air bag is normal. Wear protective glasses when using the grinder; hold the grinder tightly and hit gently to avoid rebound. The following are the detailed steps for tire repair, which we can refer to:
               

　　先涂刷胶水，等胶水阴干，胎内贴上橡胶及帘子布，然后压实压紧，谨防空气夹入，接下来选用与轮胎巨细共同的补胎气囊，轮胎外侧创伤有必要缝合，缝合后填充补胎生胶。要注意一点的是，补胎生胶填充高于胎面有些2-3毫米。下面是用扩胎器将轮胎阔开，将气囊装入编制带或涂改滑石粉后，装入轮胎，放入上模，并在上模与下模加放铁皮，在气囊上方放入橡胶板(便宜)，然后放入维护气囊的铁板，放入压铁，装好丝杠。旋紧两头丝杠，将轮胎赶紧。要尽量确保轮胎与模具严密贴合，如不贴合，请松开丝杠及压铁，从头调整。较终将硫化出的剩余橡胶割掉，确保胎面平坦。

　　First, brush glue, wait for glue to dry in the shade, paste rubber and cord fabric inside the tire, and then compact and compact it to avoid air entrapment. Next, use the tire repair air bag which is the same as the tire size. It is necessary to suture the external trauma of the tire, and fill the tire with raw rubber after stitching. It should be noted that the raw rubber filling is 2-3 mm higher than the tread. The next step is to use the tire expander to open the tire. After the airbag is loaded into the braided belt or coated with talcum powder, the tire is loaded into the upper mold, and the iron sheet is placed in the center of the upper mold and the lower mold, and the rubber plate is placed above the air bag (cheap), and then the iron plate for maintaining the air bag is put in, and the lead screw is installed. Tighten the two lead screws, and make the tire quickly. Try to make sure that the tire fits the mold tightly. If it doesn't fit, please loosen the lead screw and iron and adjust it from the beginning. Finally, cut off the remaining rubber to ensure the smooth tread.

　　无论是什么产品，什么车辆。如果我们能从日常生活当中，行驶当中就能做好保养，那么很多情况是会远离我们的，较怕大家明明知道它存在隐患，但是还是义无返顾不顾及自己的生命。为了您和您家人的，请驾驶每一分钟，每一秒钟。

　　No matter what kind of product or vehicle it is. If we can do a good job of maintenance from our daily life and driving, many situations will be far away from us. We are afraid that everyone knows that there is a potential safety hazard, but we still have no intention to look back on our own life safety. For the safety of you and your family, please drive safely every minute, every second.