Work should be conscientious and responsible, and should not be taken lightly. If you want to be handy in the use of work, you must understand the product so that the product is on standby and ensure that the product is good. It is strictly forbidden to be responsible for the product. Do the maintenance of the group hoist electric hoist. 1. When using the group hoist electric hoist, it is absolutely forbidden to use it in an environment where it is not allowed, and it is strictly prohibited to use it in overload. 2. In many cases, the electric hoist of the group crane is operated by multiple units, so it is strictly forbidden to press two different buttons at the same time during use. 3. Cut off the power supply immediately after using the group hoist electric hoist to avoid danger. 4. In the use of group hoist electric hoist, professional personnel must regularly check the product, take measures in a timely manner when a failure occurs, and make a record. 5. When using the group hoist electric hoist, it must be kept sufficiently lubricated and clean without any debris. 6. When the group hoist electric hoist is not working, do not hang the product in the air to prevent permanent deformation of the parts. Responsible for the tool. Not only the product must be on standby at the same time, but also the operator who uses it should maintain the electric hoist of the group crane to maintain the performance of the product.