There are many reasons for the increase of fuel consumption of self-propelled mixer. But the common and easy to be ignored is the inspection of tire pressure. Insufficient tire pressure will not only increase the driving resistance and fuel consumption, but also affect the service life of self-propelled mixer tire.

自走式搅拌车预防耗油的方法：自备胎压测量器，经常检查自走式搅拌车轮胎气压。切记不要忘记备胎的检查，以免急需更换备胎时，才发现备胎不能使用。气温高时胎压会比平时高一些，冷天或阴凉处测量的胎压比较准确。轮胎每行驶1万km要互换位置，避免前后磨损程度相差太大。如果需要更换磨损严重的轮胎，好2个或4个一起更换，纹路相同的轮胎可以前后交叉更换。另外，折线花纹的轮胎有助于节省燃油。

Methods to prevent fuel consumption of self-propelled mixer: provide self-contained tire pressure gauge and check tire pressure of self-propelled mixer frequently. Remember not to forget the check of the spare tire, so as not to find that the spare tire can not be used when it is urgent to replace it. When the temperature is high, the tire pressure will be higher than usual. The tire pressure measured in cold weather or in the shade is more accurate. The position of the tires should be changed every 10000 km to avoid too much difference between the front and rear wear. If it is necessary to replace the severely worn tires, two or four of them should be replaced at the same time, and the tires with the same grain can be replaced alternately. In addition, the tire with broken line pattern helps to save fuel.

自走式搅拌车的电器系统由三部分组成：冷却风扇控制部分和后示廓灯部分。

The electric system of self-propelled mixer consists of three parts: cooling fan control part and rear position indicator part.

自走式搅拌车冷却风扇控制部分：冷却风扇的起停由温度开关自动控制，温度高于 6 5℃时风扇启动，低于60℃时风扇停止。温度开关位于冷却器上，继电器与保险片在蓄电池旁电源继电器盒内。后示廓灯部分：后示廓灯用于夜间表示车后部轮廓大小，与后牌照灯同时点亮与熄灭。

Self propelled mixer cooling fan control part: the start and stop of the cooling fan is automatically controlled by the temperature switch. The fan starts when the temperature is higher than 65 ℃, and stops when the temperature is lower than 60 ℃. The temperature switch is located on the cooler, and the relay and fuse are in the power relay box beside the battery. Rear clearance lamp part: the rear clearance lamp is used to indicate the size of the rear contour of the vehicle at night, and is on and off at the same time as the rear license plate lamp.

自走式搅拌车主要电器元件包括：一个继电器和继电器底座、闪光蜂鸣器、推拉开关、纽子开关、片式保险及接线座等。

The main electrical components of self-propelled mixer include: a relay and relay base, flashing buzzer, push-pull switch, button switch, chip fuse and wiring base, etc.