1, explain the rope should be carefully checked before use, the rope should avoid knots or distortions. Wire ropes can not be connected directly to each other. When splicing type wire rope sling, ring rope and wire rope are connected by braiding method, the length of the splicing joint section should not be less than 20 times the diameter of the wire rope, and not less than 300mm. Sling and ring rope shall be used after passing the static test of 1.25 times the allowable working load.

2, the wire rope can not be in direct contact with the edges and sharp edges of the object, should be padded with semicircle pipe, wood, etc., to avoid damage to the wire rope. Steel wire rope in mechanical motion can not produce friction with other objects or between each other.

Chain block

1. Pay attention to the use of lifting tools: Before use, check whether the hook, chain, transmission device and brake device are good. When the hook, sprocket, reverse card, etc. are deformed, and the chain diameter wear amount reaches 10%, it is prohibited to use.

2. When two or more chain hoists lift the same weight, the total weight of the weight should not be greater than the allowable weight of each chain hoists. Lifting chain can not be twisted, nor can be split into a single strand use.