Since the feeding mixer can only operate the boom after confirming that the support legs of the pump truck have been properly supported, the operation of the boom must be carried out in accordance with the sequence described in the operating procedures. Now let's take a look at the operation of the boom.

雷雨或恶劣天气情况下，自上料搅拌车不能使用臂架。臂架不能在大于8级风力的天气中使用；操作搅拌车臂架时，臂架的全部都应在操作者的视野内。

In case of thunderstorm or bad weather, boom cannot be used for self loading mixer. The boom can not be used in the weather with wind force greater than 8; when operating the boom of the mixer, all parts of the boom should be in the view of the operator.

搅拌车在高压线附近作业时要小心触电的危险，应保证臂架与电线的距离；臂架下方是危险区域，可能有混凝土或其它零件掉落伤人；末端软管规定的范围内不得站人，搅拌车启动泵送时不得引导末端软管，它可能会摆动伤人或喷射出混凝土引起事故。

When the mixer is working near the high-voltage line, it is necessary to be careful of the danger of electric shock and ensure the safe distance between the boom and the electric wire; below the boom is a dangerous area where concrete or other parts may fall and hurt people; people are not allowed to stand within the specified range of the end hose, and the end hose should not be guided when the mixer starts pumping, which may swing and hurt people or spray concrete to cause accidents.

启动搅拌车时的危险区就是末端软管摆动的周围区域。区域直径是末端软管长度的两倍。末端软管长度较大为3m，则危险区域直径为6m；切勿折弯搅拌车末端软管，末端软管不能末入混凝土中。

The dangerous area when starting the mixer is the area around the swing of the end hose. The area diameter is twice the length of the end hose. If the length of the end hose is larger than 3m, the diameter of the dangerous area is 6m; do not bend the end hose of the mixer truck, and the end hose cannot end into the concrete.

如果搅拌车臂架出现不正常的动作，就要立即按下急停按钮。由人员查明原因并排除后方可继续使用。

If there is abnormal action of the mixer boom, press the emergency stop button immediately. It can be used only after the cause is found out and eliminated.

以上就是关于搅拌车的臂架操作介绍。臂架作为一个备用的支撑，在使用时一定要规范操作，另外要注意臂架与电线的距离。

The above is about the mixer boom operation. Boom as a backup support, in use must be standardized operation, in addition to pay attention to the safe distance between the boom and the wire.