文档介绍：在使用前，首先查看行车和龙门吊的锁紧装置是否打开。
Before operation, please check whether locking apparatus is open.
在使用前，必须查看电源保险装置是否灵敏。
Bef在使用前，首先查看行车和龙门吊的锁紧装置是否打开。
Before operation, please check whether locking apparatus is open.
在使用前，必须查看电源保险装置是否灵敏。
Before operation, the safety device of power must be checked.
在使用前，必须查看行车和龙门吊的轨道上有无杂物。
Before operation, the rail of truss crane and gantry must be leaned up.
在使用前，必须查看行车和龙门吊的索具是否完好。
Before operation, it is requested to make sure the rigging of truss crane and gantry is in good condition.
在使用前，必须先检查行车和龙门吊的电机运转是否正常，否则通知检修人员进行检修。
Before operation, it is requested to check whether the engines of truss crane and gantry run well. If not please inform operator for maintenance.
在起吊前，必须了解所吊构件的重量是否在行车和龙门吊的额定起重范围内。
Before lifting, operator must guarantee the weight of work piece is within the rated value.
在起吊过程中，必须有专人统一指挥。
During lifting, it is requested that an operator is assigned for conduct.
在起吊过程中，严格遵循“十不吊”。
During lifting, “ten no lifting” must be followed strictly.
在起吊过程中，任何人不得挡住指挥人员的手势和操作人员的视线。
During lifting, no body is allowed to obstruct the signal and sight of operator
行车和龙门吊在行走过程中，构件的前方不得站人。