INFORMATION FOR USE AS PER EN 1492 PART 1 AND 2
Before a load is lifted the weight of the load must be determined by checking the delivery note, marking on the load or packing, weight tables(e.g. steel profiles) or by crane weigher. The load must not weigh more than the carrying capacity shown on the sling label for the given angle of inclination.
The larger the angle of inclination on multi-fall slings the greater is the tension force between the individual slings that has to be taken up in addition to the load. The reductions in carrying capacity for the inclinations 45° to 60° are shown on the sling label. Inclination angels larger than 60° are not permissble.
To lift a load without twisting or turning adhere to following instructions: On single-fall slings and chains, round slings and endless flat slings, the point of attachment shoud be over the load center; 3 and 4-fall slings should be attached at one level around the load centre. Preferably they shoud be attached with equal spacing and above the load centre.
In multi-fall cases where the slings are attached at different angles of inclination the greatest strain is borne by the single sling with the smallest inclination angle. In extreme cased a single vertical sling will bear the weight of the complete load. When mult-fall slings are attached asymmetrically only half of the carrying capacity shown on the sling lable may be carried.