Program Policy Manual - VOLUME V - Mine Safety and Health ...

MSHA PROGRAM POLICY MANUAL VOLUME V
inspector has reason to believe that any equipment, including
off-track mining equipment, has been allowed to contact the
trolley or trolley feeder wires, creating a short circuit, this
Section should be cited.
The following precautions are considered adequate for movement
of equipment other than off-track mining equipment in track and
trolley entries:
1. Maintenance of 12 inches vertical clearance between the
equipment being moved and energized trolley or trolley
feeder wires; or
2. Deenergization of the trolley and trolley feeder wire
while equipment is being moved along track and trolley
entries; or
3. Transportation of the equipment in a mine car or other
vehicle having two sides with dimensions not greater
than the sides of mine cars normally used in the track
haulage system. The equipment being transported shall
not extend above the sides of the mine car; or
4. Transportation of small items of mine equipment, such as
small pumps, component parts of mining equipment, and
mine supplies, in a vehicle that normally traverses the
intended route, provided no part of the equipment being
transported extends higher than that part of the frame
of the vehicle that is in front of or to the rear of the
item being transported.
If items 1 through 4 cannot be met, adequate protection would
require compliance with Sections 75.1003-2(a) through 75.1003-
2(f)(5) or other equally effective safeguards designed to insure
that such equipment will not contact energized trolley wires or
trolley feeder wires.
75.1003-2 Requirements for Movement of Off-Track Mining
Equipment in Areas of Active Workings Where
Energized Trolley Wires or Trolley Feeder
Wires are Present; Premovement Requirements;
Certified and Qualified Persons
"Off-track mining equipment" for the purpose of this Section is
interpreted to be a major item of complete or reasonably
complete mining equipment, built on its own individual frame,
consisting of its own components, performing its own unique
function, and not designed to operate on mine track. "Off-track
mining equipment" includes all self-propelled equipment
February 2003 (Release V-33) 89