L48A1 Mast Section Regulations on safety use management of tower crane
1. The crane driver, signalman and rigger of tower crane must have the special operation certificate.
2. Before using the tower crane, safety technical disclosure shall be made to the crane driver, crane signalman, rigger and other operators.
3. Safety protection devices such as moment limiter, weight limiter, luffing limiter, travel limiter and height limiter of tower crane shall not be adjusted or removed at will.
4. Before operation of each shift, daily inspection and trial hoisting shall be carried out according to the regulations; during the use period, the installation unit or leasing unit shall regularly maintain the tower crane according to the requirements of the operation manual.
5. For the cross operation of two or more tower cranes on the construction site, a special anti-collision scheme shall be prepared.
6. In case of sudden failure during operation, measures shall be taken to lower the hoisted object to a safe place, and it is forbidden to hang the object in the air for a long time.
7. The tower crane shall not lift the lifting objects with the weight exceeding the rated load, and shall not lift the heavy objects with unknown weight.
8. When lifting objects, they shall be bound firmly, and other objects shall not be stacked or hung on the lifting objects; when lifting sporadic materials, they must be bound firmly with hanging cage or steel wire rope. Do not lift when standing on the lifting object.
9. The specification of wire rope shall meet the requirements of rated weight. The maintenance, inspection and scrapping of steel wire ropes shall comply with the current national standard code of practice for inspection and scrapping of steel wire ropes for cranes (GB / t5972).
10. In case of severe weather such as heavy rain, snow, fog, sandstorm and gale above level 6, the operation shall be stopped. After the rain and snow, the trial hoisting shall be carried out first to confirm that the brake is sensitive and reliable before the operation. Sufficient lighting shall be provided for construction at night.
11. It shall be ensured that the boom of tower crane can rotate with the wind under non working conditions.
12. The walking tower crane must be equipped with an effective winder.
