1. The load is not properly lifted;
2. The command signal is unclear, the weight is unknown, and the lighting is insufficient;
3. The object is not securely fastened, does not meet safety standards, and should not be lifted;
4. Direct handling while hanging without taking necessary safety measures is not allowed;
5. Oblique or slanting lifting is prohibited without a designated commander;
6. Hanging objects or items attached to moving objects must not be lifted;
7. Oxygen cylinders, acetylene tanks, and other hazardous materials must not be lifted without proper safety precautions;
8. Sharp-edged or rapidly moving objects must be protected with padding or not lifted at all;
9. Objects buried in the ground or with uncertain conditions must not be lifted;
10. Lifting is not permitted if safety devices are malfunctioning, machinery makes unusual noises, or there are mechanical issues.
Additionally, all lifting operations must be conducted under the supervision of trained personnel, and any doubts about the stability, weight, or condition of the load should result in immediate stoppage of the operation. Proper communication between operators and signalers is essential for safe lifting. All equipment must be inspected before use to ensure it is in good working order. Safety protocols must always be followed to prevent accidents and protect workers on site.
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