For the wedding ceremony chain hoist, it is necessary to establish a chain usage ledger, which details the wear condition after each use, lubrication time and maintenance content. When the cumulative service time of the chain reaches 500 hours or the elongation of the chain link exceeds 1% of the original length, a load test is required (the test load is 1.25 times the rated load, lasting for 10 minutes), and it can continue to be used only after confirming that there is no permanent deformation
In conclusion, the chain of the wedding ceremony chain hoist is the "safety lifeline". Its material, structure and maintenance directly affect the reliability of stage hoisting operations. It is necessary to strictly follow safety standards for selection, use and maintenance. Any slight negligence may cause equipment failure or safety accidents, which in turn affect the smooth progress of stage performances. Therefore, the maintenance of the wedding ceremony chain hoist chain should be included in the core link of daily equipment management to ensure that every hoisting operation is foolproof.
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