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- Lockout is a technique used to prevent the release of hazardous energy,
or to prevent the hazardous energy from escaping.
- A padlock is placed on the appropriate energy isolating device that is
in the off or closed position.
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- Failure to stop equipment
- Failure to disconnect from power source
- Failure to dissipate (bleed, neutralize) residual energy
- Accidental restarting of equipment
- Failure to clear work areas before restarting
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- Authorized Employee - one who locks out machines or equipment in order
to perform the servicing or maintenance on that machine or equipment.
- Affected Employee - one whose job requires him/her to operate or use a
machine or equipment on which servicing or maintenance is being
performed under lockout, or whose job requires him/her to work in an
area in which such servicing or maintenance is being performed.
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- Energy Isolating Device - A mechanical device that physically prevents
the transmission or release of energy.
- Energy Control Procedure - Safety program adopted by the employer that
includes energy control procedures plus provisions for inspecting the
procedures and training employees for lockout/tagout.
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- Electrical
- Mechanical
- Thermal
- Machines or Equipment
- Chemical Reactions
- Potential
- Pressure
- Hydraulic
- Pneumatic
- Vacuum
- Springs
- Gravity
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7
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- Plug Locks
- Ball Valve Lockout
- Gate Valve Lockout
- Group Lockout Hasp
- Electrical
- Hydraulic, pneumatic, and other pressurized systems
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- Alert the operator (s) that power is being disconnected.
- Preparation for Shutdown
- Equipment Shutdown
- Equipment Isolation
- Application of Lockout Devices
- Control of Stored Energy
- Equipment Isolation-Verification
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- Ensure equipment is safe to operate
- Safeguard all employees
- Remove lockout/tagout devices. Except in emergencies, each device must
be removed by the person who put it on.
- Last person to take off lock
- Follow checklist
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- Remove unnecessary tools from the work area and make sure everyone is
clear of the equipment
- Remove lockout/tagout devices and re-energize the system
- As soon as the energy is no longer needed, isolate the equipment and
re-apply lockout/tagout, using the six step procedure.
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- Servicing lasts longer than one shift.
- Contractors are performing service or maintenance at your workplace
- Worker who applied lock is not available
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- Never attempt lockout/tagout procedures unless you have been trained and
certified by your employer under an approved Energy Control Program.
- Never loan or share your lock, combination, or key with anybody else.
- Always be sure all lockout/tagout devices are compatible with the
environment in which they will be used i.e. corrosive, humid, etc.
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