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、車門拉手松、鑰匙孔發澀：一把螺絲刀加一點潤滑油就可以搞定。

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

打開前車門，側面有一個塑料蓋，用螺絲刀旋開可以看到里面一個螺絲，松動一下，但不要完全擰開來，從外面把鎖芯拔出來，里面有一個門鎖拉線扣在把手上，調整一下拉線的松緊就可以這個問題。

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.

后備箱門的螺絲用密封條擋著，撥開密封條可以處理，鎖芯涂上潤滑油，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、輪胎噪音很大怎么辦?

2. What to do with the noisy tires?

胎噪本身是不可避免的，但如果在環境噪音比較小的時候，會感覺胎噪格外大，所以判斷胎噪是否異常，要對比環境噪音和道路狀況。

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.

異常的胎噪一般是由于輪胎異常磨損引起的，使用一段時間的輪胎，如果感覺到胎噪增大，可以嘗試定期清理一下輪胎花紋里夾著的石子，又可以保護輪胎，還能降低胎噪。

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.

一般來說下過雨后車行駛時輪胎噪聲變小，而洗車后胎噪會變大，這是因為內側防護板上有泥吸噪。如果將前輪內側防護板上粘上一層黑氈布或絨布就可以避免這一情況了。

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.

日常用車時，每一萬要調整一下輪胎位置，每2萬檢查一下四輪定位，如果異常進行校正調整。

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.

小型混凝土攪拌機

Small concrete mixer

3、剩下的機油有妙用：積少成多。

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

每次保養，桶裝機油是用不完的，每次的剩余量蓋好蓋放在后備廂里就是了。三四次剩余的機油合在一起，也夠保養一次使用了。

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.

或者可以將每次換油剩下來用不了的那些機油都存起來，行駛4000后，從機油尺處抽出部分機油，加入剩下的機油，再開3000換油。

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.

或者在下次保養時，放完機油后，先用少量剩余機油倒入缸內沖洗，排出殘留在缸底的油底，再添加新機油，這樣保養效果更好。

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.