首先，使用前必须检查：
First, you must check before using:
1、手扳葫芦的壳体紧固螺钉需要拧紧；
Tighten the screws of the shell of the gourd.
2、零部件完好无损，传动部分及起重链条滑润良好；
The parts are intact, the driving part and the lifting chain are good.
3、手柄扳动灵活可靠；
The handle is flexible and reliable.
其次，使用时注意事项：
Second, what to watch for in use:
1、上、下吊钩是否钩牢；
Whether the hook is fastened to the top or bottom of the hook;
2、链条是否有错扭打结或链环缠绕；
Whether the chain has a false twist or link wound;
3、载荷有没有障碍物；
There is no obstruction to the payload.
4、钩头不可受力。受力点应在吊钩的钩腔内缘中央；
The hook can't bear. The force point should be in the middle of the hook.
5、严禁将吊钩直接挂在工件上，在作业过程应充分利用卡兰/专用卡板等工装件；
It is strictly forbidden to hang the hooks directly on the workpiece, and should make full use of the karan/special card board in the course of the operation.
6、手扳葫芦机体与载荷作用力方向应呈一直线，以防止侧向力；
The body and the load force should be in a straight line to prevent lateral force.
7、要注意不能将润滑油渗到摩擦胶木片上，雨天不得在露天使用，以防止自锁失灵。
It is important to be careful not to seethe lubricants into the friction bakelite, and the rain is not to be used in the open air to prevent self-lock failure.
8、手扳葫芦钩头开口:2吨手扳葫芦不得大于40mm，3吨手扳葫芦不得大于45mm；
8, hand lever gourd hook head openings: 2 tons hand lever gourd cannot be bigger than 40mm, 3 tons hand lever hoist not bigger than 45mm;