吊车的工作顺序是首先在一个位置将物品提起，然后到达指定的一个地点之后将物品落下，再然后是执行反向动作，把吊车开回原来的位置，来进行下一次的循环。起重机械尤其是在港口码头、工地上还有车间里被应用得最多。
The working sequence of the crane is to first lift the goods in a position, then drop the goods after reaching a designated place, and then perform the reverse action to drive the crane back to the original position for the next cycle. Lifting machinery, especially in the port terminal, construction site and workshop, is the most widely used.
在进行吊车作业之前我们首先要清楚将要被吊起的物品的重量，吊车的承载能力一定要大于被吊起的物品的重量。第二在吊起之前一定要将被吊的物品牢牢井盖钢模具 U型槽模具 天津水处理设备 检查井钢模具 保定公司注册 u型槽模具 流水槽模具 地捆绑吊挂在吊车上。第三要记住当天气状况不好像刮风下雨的时候不能进行吊车作业。第四，在吊车作业中要有明确的指挥信号进行引导。
Before carrying out the crane operation, we must first know the weight of the goods to be lifted. The carrying capacity of the crane must be greater than the weight of the goods to be lifted. Second, before lifting, the objects to be lifted must be firmly tied and hung on the crane. Third, we should remember that when the weather conditions are not like wind and rain, we can not carry out crane operation. Fourth, there should be a clear command signal to guide the crane operation.