-How to use: Before use, check whether the chain, hook, transmission and braking are normal, 

and check the nameplate to confirm the rated load. During operation, the hook is positioned first,

 and the lifting is tested. After confirming that it is correct, the lifting

 handle is pulled clockwise for lifting operations. When descending, the handle is pulled 

counterclockwise, and the speed should be slow. 

-Maintenance: After each use, the surface of the chain should be cleaned of dust and oil, special

 anti-rust grease should be applied, and the braking system should be checked every month to 

remove dirt in the ratchet groove, test the braking sensitivity, and replace key components that

 have reached the limit of wear in time.