Sometimes small concrete mixer will have some small problems. If these problems are not worth repairing in the repair shop, we can repair them by ourselves. Let's take a look at them!

1、车门拉手松、钥匙孔发涩：一把螺丝刀加一点润滑油就可以搞定。

1. Door handle loose, keyhole astringent: a screwdriver with a little lubricating oil can be done.

打开前车门，侧面有一个塑料盖，用螺丝刀旋开可以看到里面一个螺丝，松动一下，但不要完全拧开来，从外面把锁芯拔出来，里面有一个门锁拉线扣在把手上，调整一下拉线的松紧就可以这个问题。

When opening the front door, there is a plastic cover on the side. You can see a screw inside by unscrewing it with a screwdriver. Loosen it, but don't screw it out completely. Pull out the lock cylinder from the outside. There is a door lock cable in the handle. Adjust the tightness of the cable to solve this problem.

后备箱门的螺丝用密封条挡着，拨开密封条可以处理，锁芯涂上润滑油，就可以了。

The screw of the trunk door is blocked by the sealing strip. The sealing strip can be removed and the lock cylinder can be coated with lubricating oil.

2、轮胎噪音很大怎么办?

2. What to do with the noisy tires?

胎噪本身是不可避免的，但如果在环境噪音比较小的时候，会感觉胎噪格外大，所以判断胎噪是否异常，要对比环境噪音和道路状况。

Tire noise itself is inevitable, but if the ambient noise is relatively small, it will feel that the tire noise is particularly large, so to judge whether the tire noise is abnormal, it is necessary to compare the ambient noise and road conditions.

异常的胎噪一般是由于轮胎异常磨损引起的，使用一段时间的轮胎，如果感觉到胎噪增大，可以尝试定期清理一下轮胎花纹里夹着的石子，又可以保护轮胎，还能降低胎噪。

Abnormal tire noise is generally caused by abnormal tire wear. If you feel that the tire noise increases after using the tire for a period of time, you can try to clean the stones in the tire pattern regularly, protect the tire and reduce the tire noise.

一般来说下过雨后车行驶时轮胎噪声变小，而洗车后胎噪会变大，这是因为内侧防护板上有泥吸噪。如果将前轮内侧防护板上粘上一层黑毡布或绒布就可以避免这一情况了。

Generally speaking, after rain, the tire noise becomes smaller when the car is driving, but it becomes larger after washing the car. This is because there is mud on the inner guard board to absorb the noise. If you stick a layer of black felt or flannelette on the front wheel inner guard, you can avoid this situation.

日常用车时，每一万要调整一下轮胎位置，每2万检查一下四轮定位，如果异常进行校正调整。

In daily use, adjust the tire position every 10000 km, check the four-wheel alignment every 20000 km, and correct and adjust if it is abnormal.

小型混凝土搅拌机

Small concrete mixer

3、剩下的机油有妙用：积少成多。

3. The rest of the oil has a magic effect: a little makes a lot.

每次保养，桶装机油是用不完的，每次的剩余量盖好盖放在后备厢里就是了。三四次剩余的机油合在一起，也够保养一次使用了。

Every time you maintain, you can't use up the barreled oil. Just cover the remaining oil and put it in the trunk. Three or four times the remaining oil together, also enough to maintain a use.

或者可以将每次换油剩下来用不了的那些机油都存起来，行驶4000后，从机油尺处抽出部分机油，加入剩下的机油，再开3000换油。

Or you can save the remaining oil that you can't use every time you change the oil. After driving 4000 km, draw some oil from the oil dipstick, add the remaining oil, and drive another 3000 km to change the oil.

或者在下次保养时，放完机油后，先用少量剩余机油倒入缸内冲洗，排出残留在缸底的油底，再添加新机油，这样保养效果更好。

Or in the next maintenance, after the oil is discharged, first pour a small amount of remaining oil into the cylinder to flush, drain the remaining oil at the bottom of the cylinder, and then add new oil, so that the maintenance effect is better.