What do signalmen do?

The work of the bell man includes: 1, strictly implementing the hoisting scheme, technical and safety requirements and measures; 2, the correct use of gestures, audio, semaphores and other command signals; 3, it is forbidden to overload the use of tower crane and tools and rigging; 4. Strictly implement the regulations that no idle people are allowed to enter the hoisting operation area; 5. Protect hanging objects and tower crane equipment; 6. Complete other tasks assigned by superiors. The recruitment conditions for signal soldiers are: 1, 18 years old, and have not retired; 2. There is no disease or physical defect that hinders the signalman's related work; 3. Have relevant qualification certificates.