1. The first thing is to adjust the center rearview mirror. Adjust the left and right position of the cab to the left edge of the mirror and cut it to the right ear of the image in the mirror. This means that in general, you can't see yourself from the central rearview mirror, but the upper and lower positions are to place the distant horizon in the center of the mirror.

2. 调整左侧后视镜，处理上下位置时把远处的地坪线置于，左、右位置调整至车身占据镜面范围的1/4.

2. Adjust the left rear-view mirror. When processing the upper and lower positions, place the far ground line in the center, and adjust the left and right positions until the car body occupies 1 / 4 of the mirror area

3. 调整后侧后视镜，因为驾驶座位位于左侧，因此驾驶员对车辆右侧的情况掌握的不是那么容易，再加上有时路边停车的需要，右侧后视镜在调整上、下位置时地面面积应留的较大，约占镜面的2/3.而至于左右位置，则同样调整车身占1/4镜面面积即可。

3. Adjust the rear rearview mirror. Because the driver's seat is on the left side, it is not easy for the driver to master the situation on the right side of the vehicle. In addition, when adjusting the up and down positions of the right side rear-view mirror, the ground area should be larger, accounting for about 2 / 3 of the mirror surface. As for the left and right positions, the car body should also be adjusted to account for 1 / 4 of the mirror area.

4. 自上料混凝土搅拌罐车，如何尽量消除视线死角，很多人觉得，要消除视线死角，都尽量把左右后视镜往外调或者往下调。另外，有研究显示，很多人误必须要将后视镜调整到看到自己才行，其实这是错误的做法，正常情况下。驾驶员在仅转动眼球而不回头的情况下，约可以看到前方200度左、右的范围，换句话说，还有约160度是看不见的。事实上，左右后视镜再加上后视镜，只能再提供额外约60度左右的可视范围，剩下的100度左右是看不见的，必须靠我们自己多注意，尤其是转弯的时候。

4. Since the loading mixer, how to eliminate the dead angle of sight as far as possible, many people think that to eliminate the blind angle of sight, they should try to adjust the left and right rear-view mirrors outward or downward. In addition, studies have shown that many people have to adjust the central rearview mirror to see themselves. In fact, this is a wrong practice. Under normal circumstances. When the driver only turns his eyes without turning back, he can see about 200 degrees left and right in front of him. In other words, he can not see about 160 degrees. In fact, the left and right rear-view mirrors, together with the central rear-view mirror, can only provide an additional visibility of about 60 degrees. The remaining 100 degrees are invisible. We must pay more attention to it, especially when turning.

自上料混凝土搅拌罐车提醒；不仅是自上料混凝土搅拌罐车、随车起重运输车、道路清障车，其它车辆在驾驶过程中同样要注意视觉盲区，否则很容易造成事故的。

It is not only the concrete mixer truck, truck mounted crane transport vehicle, road obstacle removal vehicle, but also other vehicles should pay attention to the visual blind area in the driving process, otherwise it is easy to cause accidents.