L68B2 Mast Section As for the safety operation rules
1. There shall be enough working site for tower crane operation, no obstacles within the boom boom rise and fall and turning radius, and sufficient lighting equipment for night operation.
2. Before operation, it is necessary to have a comprehensive understanding of the surrounding environment, driving road, overhead power lines, buildings, component weight and distribution of the work site.
3. Safety protection devices such as luffing indicator, moment limiter and various travel limit switches of tower crane must be complete, sensitive and reliable, and shall not be adjusted or removed at will. It is strictly prohibited to use the limit device instead of the operating mechanism for shutdown.
4. It is not allowed to lift some overload objects. It is strictly prohibited to use tower crane for oblique lifting, oblique pulling and lifting of heavy objects buried underground or condensed on the ground. The concrete components on the construction site must be all loose before lifting.
