(1) lifting operations must be a clear division of labour, in accordance with the provisions of the lifting and command signals signal, unity of command.
(2) have two sets of hoisting mechanism of crane main and auxiliary, are not allowed to use the main and auxiliary hook.
(3) the mast crane, railway cranes, truck cranes, crawler cranes working, the cantilever stand is prohibited in the work area can be reached. Use lifting magnet crane, prohibited within the designated area.
(4) prohibition of wind or rain, snow, fog lifting.
(5) the homework to ensure illumination at night.
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