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Use method and precautions of chain and chain rigging

author: from: time:2020-12-24 classify:News and information
Before use, the chain and chain rigging shall see clearly the working load and applicable scope on the label. Overload use is strictly prohibited, and visual inspection of the chain rigging shall be carried out before use

1. Before use, the chain and chain rigging shall see clearly the working load and applicable scope on the label. Overload use is strictly prohibited, and visual inspection of the chain rigging shall be carried out before use

2. In normal operation, the hoisting Angle is the key affecting the load. The included Angle of the shadow part in the figure should not exceed 120 degrees at most, otherwise it will cause local overload of the chain rigging.

3. It is forbidden to use informal link between the chains.

4. It is forbidden to hang the load-bearing chain rigging directly on the components of the crane hook or to be wound on the hook.

5. Add padding at edges and corners when the chain rigging surrounds the suspended objects to prevent damage to the ring chain and the suspended objects.

6. The temperature has a certain influence on the use of the chain rigging. The rated load is between 40 degrees below zero and 200 degrees, 90% of the rated load is between 200 degrees and 300 degrees, 75% of the rated load is between 3,300 degrees and 400 degrees, and it is not allowed to use above 400 degrees.

7. The lifting point of hoisting machinery hooks is required to be on the same plumb line with the lifting center, so that the lifting weight can be in a stable equilibrium state and prevent sliding or overturning during lifting.

8, the chain between the torsion, distortion, knot, adjacent chain activities should be flexible.

9. When lifting heavy objects, the lifting, dropping and stopping should be slow and steady. The center of gravity of the object to be lifted should be balanced to avoid impact load and the heavy objects should not be hung on the chain for a long time.

10, the chain rigging should be handled with care. It is strictly prohibited to fall, touch or drag on the ground. It should be prevented from falling from high altitude to avoid deformation, surface and internal damage of the chain