启闭机试验方法
Test method of hoist
1、启闭机操作人员必须掌握启闭机的结构、性能与操作方法，并有一定的机械知识，以确保机器的正常运转。
1. The hoist operator must master the structure, performance and operation method of the hoist, and have certain mechanical knowledge to ensure the normal operation of the machine.
2、操作前，对起闭机进行全面检查，各部位润滑情况是否良好，螺栓有无松动。3、当启闭机运转时，操作人员不得离开现场，发现问题立即停机。
2. Before operation, check the hoist and shutdown machine thoroughly. Whether the lubrication condition of each part is good or not and whether the bolt is loosened. 3. When the hoist is in operation, the operator must not leave the scene and stop immediately when problems are found.
4、对机器进行维修时，必须清除载荷。
4. When repairing the machine, the load must be removed.
5、在使用时,需随时由注油孔注入润滑油，要经常保持足够的润滑油，螺杆要定期清除油垢，涂护新油，以防锈蚀。
5. When in use, it is necessary to inject lubricating oil into the injection hole at any time, to keep enough lubricating oil, to regularly remove grease scale on the screw, and to coat new oil to prevent rust.
