1. Unsupervised inspection, regular inspection, exceeding the periodic inspection cycle, and the operation is not allowed without the unit organization inspection.
2. The operator is not trained and is not allowed to work.
3. There is no commander at the lifting site to be allowed to work.
4. No lifting hoisting plan and lifting plan are not allowed to work without approval.
5. The surrounding environment of the lifting site is unclear, and the protection is not in place.
6. The safety protection device is not qualified for inspection.
7. The brake device is not qualified for inspection.
8. The spreader inspection is not qualified and the operation is not allowed.
9. The lifting site is not flat and solid, the crane legs are not fully extended, and the wooden blocks are not allowed to work.
10. Six or more winds, heavy rain, heavy snow, heavy fog and other bad weather are not allowed to work.
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