Section 9, The Machinery (Safe Working Citation

(I) Every owner shall cause all moving parts of machineryand dangerous places, such as elevated platforms, pits, trap~ holes, and such other places as an Inspector may in writing direct, to be fenced off in such a way as effectively to safeguard persons who may approach thereto. (2) No person shall, except if his duty necessitates it, enter within an area so fenced off.