The specific summary is as follows:
1. It is strictly forbidden to start operation when no one is directing or the command signal is incorrect;
2.it is strictly prohibited to operate when the mechanical equipment is defective or the safety device fails;
3. Lifting operations are strictly prohibited under overloaded lifting or the quality of the equipment is not clear;
4. Never lift when someone is standing on or under the hanging object;
5. The environment is dark and the optical fiber cannot be lifted if the object cannot be seen clearly;
6. Lifting objects with sharp edges and corners are strictly prohibited if safety measures are not taken.
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