Section R. 408.12034 - Warning device; wind-indicating deviceRule 2034.
(1) A crane or monorail equipment, except a pendant or rope-controlled crane or monorail equipment where the operator and other employees in the area of the load can see all load movements, shall be equipped with a warning device, such as a flashing light, horn, bell, or siren. An operator shall use a warning device before starting and intermittently while traveling in an occupied area.(2) A wind-indicating device shall be provided on an outdoor storage gantry-type crane which gives a visual or audible alarm to the operator at a predetermined wind velocity. When the warning is given, the crane shall be secured as prescribed in R 408.12014.Mich. Admin. Code R. 408.12034