4.0 square mouth mixer is a special vehicle for transporting concrete. A large tank will be installed at the back of the truck to mix the concrete. To introduce the operation of automatic feeding mixer.

一、人进入筒内混凝土的结块时，应将车辆熄火，拔下电门钥匙，筒外设人监护。

1、 When people enter the cylinder to remove the concrete caking, they should turn off the vehicle, pull out the switch key, and set people outside the cylinder to monitor.

二、操作操纵杆时，应在“空档”位置稍作停留后方可动下一个位置。

2、 When operating the control lever, stop at the "neutral" position for a while before moving to the next position.

三、运输前，卸料槽必须固定在“行驶”位置，防止摆动。

3、 Before transportation, the discharge chute must be fixed in the "driving" position to prevent swing.

四、启动后，应将搅拌操纵杆放在“卸料”位置，放去筒内积水。

4、 After starting, the mixing control rod should be placed in the "discharge" position to remove the water in the cylinder.

五、装料时，搅拌操作杆应放在“装料”位置。

5、 When loading, the mixing operating rod should be placed in the "loading" position.

六、启动前，应将搅拌操纵杆放在“空档”位置。

6、 Before starting, put the mixing control lever in the "neutral" position.

七、搞好文明施工，桶内多余材料不准随便乱倒。卸料后必须对搅拌筒、料槽、托辊等部位进行清洗。

7、 Do a good job in civilized construction, and do not dump the surplus materials in the barrel. After discharging, the mixing drum, material trough, idler and other parts must be cleaned.

八、启动前应对机械系统各部位认真进行检查，确认良好后方可启动。

8、 Before starting, all parts of the mechanical system should be carefully checked, and the machine can be started only after it is confirmed to be in good condition.