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1. The lifting hook, chain, and rotating parts are not flexible
2. Brake (self-locking mechanism) failure
3. The chain wheel guard of the chain hoist is missing, and the chain rod is damaged
4. The accessories of the chain hoist are not complete
5. The weight to be lifted exceeds the rated load of the chain hoist
6. Use of lifting hooks for dismantling chain hoists
7. The selection of lifting points and the weight of lifting heavy objects are unreasonable
8. Twisting and knotting phenomenon when lifting the chain with a chain hoist
9. The lifting weight is not securely and reliably tied
10. Other unexpected power operations caused by manual labor during lifting
11. Standing on the lifting object for lifting operation or standing in the direction of chain rebound operation
12. Uneven force when pulling the chain hoist, several people jerking
13. During the lifting process, the heavy object was temporarily suspended and the hand zipper was not tied to the lifting chain
14. Walking or engaging in other work under lifting heavy objects
15. When used tilted or horizontally, the zipper direction is not adjusted to conform to the direction of the sprocket, and the zipper is out of groove or stuck When multiple chain hoists are used to lift a heavy object simultaneously, the selection of lifting points for each chain hoist is unreasonable, and the bearing capacity of each chain hoist is not within the rated load range.
17. Overloading or unclear weight of objects
18. Oblique pulling and lifting of objects
19. Loose or unbalanced binding and hanging
20. There is no padding between the edges and corners of the heavy object and the steel rope
2023-12-19
admin
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Why should the stage hand hoist work environment b...
The stage hoist often operates in outdoor environments and inevitably comes into contact with a large amount of dust.
2023-12-18
admin
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Do not use stage gourds in violation of regulation...
Stage gourds are divided into two types: stage electric gourds and stage chain gourds, mainly used for stage construction, prop lifting
2023-12-18
admin
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The "Invisible Cloak" of Stage Electric Hull
The stage electric hoist is a commonly used lifting tool when building a stage. It has a compact appearance and is easy to use
2023-12-15
admin
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Electric hoists on stage can enhance the presentat...
When we set up the stage, our goal is to present a more dazzling stage to the audience. In addition to the lighting and sound equipment on stage