What are the problems that cranes need to pay attention to when lifting large work pieces?
When lifting large work pieces, crane should grasp and grasp the following essentials:
1. Before work, observe the shape of the work piece, grasp the center of gravity of the work piece, and confirm the weight of the work piece according to the drawing.
2, the correct choice of ropes, shackles, hooks and other rigging.
3, on the work piece itself for lifting and the design of rings or lugs, should be carefully examined before operation, and in all the rings
4, the work piece itself does not have rings, should correctly select the location of the cable point. The crane's hook head is aligned with the center of gravity of the work piece.
5, note that the angle between the rope should generally be less than 90 degrees.
The 6 corners, rope passes through the angle of protection must be added.
7, lifting machinery should be tested before lifting, confirm the security, and then continue the next step.
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