1. Selection of specifications and types of slings. When selecting the specifications of the sling, the size, weight, shape of the load to be hoisted, and the coefficient of use that are jointly affected by the hoisting method to be adopted must be taken into consideration in the calculation, given the requirements for the limit working force, and the working environment. , the type of load must be considered. It is necessary to choose a sling with sufficient capacity and the appropriate length to meet the usage method. If multiple slings are used to lift loads at the same time, the same type of sling must be used; the material of the flat sling cannot be affected by the environment or load. Regardless of whether attachments or soft lugs are required, careful consideration must be given to matching the ends of the sling with auxiliary attachments and lifting equipment.

2. Restricted use angle of the sling When using a flat sling with soft lugs, the length of the less lug used should not be less than 3.5 times the thickness of the hook at the contact part of the lug, and the angle of movement of the lug should not exceed 20° °. When connecting a sling with soft lugs to a lifting appliance, the contact part of the sling and the lifting appliance must be straight, unless the axial width of the sling does not exceed 75mm, and the bending radius of the lifting attachment must be at least zui 0.75 times the axial width of the cable.

3. Follow good hoisting experience. Plan the hoisting and handy operation plan before starting hoisting.

4. When hoisting, use the correct connection method of the sling. The sling is correctly placed and connected to the load in a safe manner. The sling must be placed on the load so that the load can balance the width of the sling; never knot or twist the sling. Cable sutures should not be placed on hooks or lifting equipment and should always be placed on an upright part of the sling to prevent damage to the tag by keeping it away from the load, hook and locking angle.

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