A. The cutter chains of any mining machine shall be locked securely by mechanical means or an electrical interlock while such machine is parked or being trammed.
B. Drilling in rock shall be conducted wet or other means of dust control shall be used.
C. Each electric drill or other electrically operated rotating tool intended to be held in the hand shall have the electric switch constructed so as to break the circuit when the hand releases the switch or shall be equipped with a properly adjusted friction or safety clutch.
D. While equipment is in operation or is being trammed, no miner shall position himself or be placed in a pinch point between such equipment and the face or any rib of the mine or another piece of equipment in the mine.
E. Each piece of equipment that is raised for repairs or other work shall be securely blocked prior to any person positioning himself where the falling of such equipment could create a hazardous condition.