III. EDGE String LOTO Procedure
Below are recommended LOTO procedures for various machine/facility configurations.
Note, these are recommended procedures only. The owner/facility manager is
responsible for defining all LOTO procedures based on the specific operational
requirements of the facility.
Read This First
• All operators must be trained on a facility's safety rules and practices (including
LOTO) before performing any operation or maintenance tasks.
• Operators may perform required operation and maintenance tasks only under the
supervision of a facility manager. Only a facility manager is authorized to conduct
operator training.
• The operator who implements LOTO (as evidenced by lock tag) is the only person
permitted to remove the LOTO. Under no circumstances is an operator allowed to
unlock a LOTO device that was implemented by another operator. This includes, but is
not limited to, cutting off padlocks or otherwise bypassing an LOTO device to restore
machine power. Only a facility manager may grant authority to cut off a padlock after
ensuring the machine is safe to energize.
• LOTO must be implemented before any machine guards are removed.
• All machine guards must be installed before a machine is energized.
• Never reach into or cross over the machine boundary of an energized machine.
• An energized machine may be observed from another machine to which LOTO has
been applied.
• If a machine will be down overnight, turn off main power to the machine pair and leave
a note for the next shift. LOTO is not required overnight if an operator is not inside the
machine boundary. LOTO must be implemented when maintenance resumes.
A. LOTO at System Controller
The system controller main power plug is the primary location for LOTO of a machine
pair. Follow the steps below.
1. Turn off main power to the machine pair by switching the system controller main
power switch to OFF.
2. Remove the system controller main power plug.
3. Implement LOTO by placing the main power plug in a plug lockout. Lock the plug
lockout using a padlock and secure a lock tag through the padlock shackle. See
Figure A-1. Note, the lock tag must be labeled with the name of the operator
implementing the LOTO.
400-051-202-01 Rev. B
Owner's Manual
Page A-6
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