(a) While in operation drills shall be attended at all times.
(b) Men shall not drill from positions that hinder their access to
the control levers, or from insecure footing or staging, or from atop
equipment not designed for this purpose.
(c) Men shall not be on a mast while the drill bit is in operation
unless a safe platform is provided and safety belts are used.
(d) Drill crews and others shall stay clear of augers or drill stems
that are in motion. Persons shall not pass under or step over a moving stem
(e) In the event of power failure, drill controls shall be placed in
the neutral position until power is restored.
(f) When churn drills or vertical rotary drills are used, drillers
shall not be permitted to work under suspended tools, and when collaring
holes, inspecting, or during any operation in which tools are removed from
the hole, all tools shall be lowered to the ground or platform.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401