1. During the driving process of concrete mixer, the transmission should be in the high speed zone as much as possible, so as to make full use of the engine power.

2.新车行驶1500-2000km时，须更换润滑油。以后每行驶5000km应检查润滑油的油面高度和泄露情况，随时进行补充。

2. When the new car runs 1500-2000km, the lubricating oil must be changed. In the future, the oil level and leakage of lubricating oil should be checked every 5000km and replenished at any time.

3.每行驶20000km应更换润滑油。

3. The lubricating oil should be changed every 20000km.

4.工作温度：搅拌车上的变速器在连续工作期间的高温度不得超过120°C，低温度不得低于-40°C，工作温度超过120°C时，会使润滑油分解并缩短变速器的使用寿命。

4. Working temperature: during continuous operation, the high temperature of the transmission on the mixer truck shall not exceed 120 ° C, and the low temperature shall not be lower than - 40 ° C. when the working temperature exceeds 120 ° C, the lubricating oil will decompose and the service life of the transmission will be shortened.

5.正确的油面位置。要确保油面与注油口平齐。油面高度由壳体侧面的锥形注油孔检查，油面注孔口外出现溢出即可。

5. Correct oil level position. Make sure that the oil level is flush with the oil filling port. The height of the oil level is checked by the conical oil filling hole on the side of the shell, and the oil level can be injected until the overflow occurs outside the hole.

6.换挡时须踏下离合器，换抵挡时驾驶员须在空挡加速，以便使相结合的零件达到同样的转速。换挡踩下离合器踏板时，应使离合器分离，避免换挡故障和结合部的早期磨损。在换挡过程中须平稳的扳动变速杆，直该挡完全接合。下坡时严禁在高低挡区之间切换。

6. When shifting gears, the clutch must be stepped down. When shifting gears, the driver must accelerate in neutral gear so that the combined parts can reach the same speed. When stepping on the clutch pedal when shifting, the clutch should be separated to avoid shifting failure and early wear of the joint. Pull the shift lever smoothly during shifting until the gear is fully engaged. It is strictly forbidden to switch between high and low gears when going downhill.

7.拖行或滑行。搅拌车上的变速器在工作时，变速器的轴和齿轮不停地转动，可以为变速器提供充分的润滑。但当车辆在后轮着地传动系连接的情况下被拖行时，主箱的中间轴齿轮与主轴齿轮并不旋转，而主轴却被后轮带着高速旋转，这样会引起变速箱的严重损坏。变速器挂空挡滑行时也会产生同样的恶果。因此当车辆需要拖行时，须使驱动轮离地拖行，也可抽出半轴或拖开传动轴后拖行。

7. Towing or sliding. When the gearbox on the mixer works, the shaft and gear of the gearbox rotate constantly, which can provide sufficient lubrication for the transmission. However, when the vehicle is towed when the rear wheels land on the ground and the transmission system is connected, the intermediate shaft gear of the main box does not rotate with the main shaft gear, but the main shaft is driven by the rear wheel at high speed, which will cause serious damage to the gearbox. The same can happen when the transmission slides in neutral. Therefore, when the vehicle needs to be towed, the driving wheel must be pulled off the ground, or the half axle can be pulled out or the transmission shaft can be towed away.