Lock Out/Tag Out (LO/TO)

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Lock Out/Tag Out(LO/TO)
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This material was produced under grant number
46B4-HT15 from the Occupational Safety and Health
Administration, U.S. Department of Labor. It does
not necessarily reflect the views or policies of
the U.S. Department of Labor, nor does mention of
trade names, commercial products, or
organizations imply endorsement by the U.S.
Government.  
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LOCK OUT / TAG OUT(LO/TO)29 CFR 1910.147
"Lockout/tagout" refers to specific practices
and procedures to safeguard employees from the
unexpected energization or startup of machinery
and equipment, or the release of hazardous energy
during service or maintenance activities.

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LO/TO

• Most incidents occur in workplace around
  machinery or equipment
• Other incidents occur from electric shock or
  hazardous materials
• This can be avoided by using Lock Out/Tag Out to
  contain hazardous energy

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LO/TO When To Use It

• For Service Maintenance of Equipment
• Installation
• Inspection
• Cleaning
• Modification
• Lubrication
• Un-jamming

• If worker needs to remove safety guards
• When a worker needs to place any part of their
  body into machinery
• To avoid an unexpected start-up

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LO/TOEnergy Sources

• Electrical
• Hydraulic pneumatic
• Potential energy from springs
• Gravity
• Chemical
• Radiation
• Pneumatic
• Thermal
• Mechanical (from sources other than springs)

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LO/TOAchieve Zero Energy Status

• Utilizing Lock Out/Tag Out
• No one may start the machinery or equipment while
  it is being repaired or cleaned

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LO/TOThree Classifications

• Authorized Personnel perform service and
  maintenance, apply locks tags
• Affected Personnel operate the machinery,
  prepare machines and/or equipment, and work
  within same area when lock out/ tag out occurs
• Other may pass by an area where LO/TO is being
  used (example an office worker)

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LO/TOLock Out Devices

• Lock with one key and a tag
• Chain
• Block
• Flange
• Pipe blank or blind

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LO/TOTag Out Devices

• Tags are always attached to the lock or energy
  isolation device
• Serves as a communication device
• TAG STATES DO NOT OPERATE
• and securely fastened

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LO/TO

• Locks and Tags are to be used by each individual
  working on a machine (double check for extraneous
  power or stored energy), either on the hasp
  itself, or lockable to a box with alternate hasp
• should only be removed by the individual, after
  work is complete or replaced by oncoming shift
• Tags without locks only allowed when as safe as
  lock and additional protection is taken i.e.
  cap over start button with fuse removed in panel

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Lock Tag with equipment lock
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Lock Tag with personal tag
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LO/TOSix Steps of LO/TO

• Preparation
• Equipment Shutdown
• Equipment Isolation
• Application of LO/TO device
• Release of stored energy
• Verification

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LO/TOSix Steps of LO/TO (contd)

1. Preparation identify and isolate hazardous
   energy sources, and understand how to use
   equipment
2. Equipment Shutdown stop buttons, and follow shut
   down procedures
3. Equipment Isolation install device to isolate
   hazardous energy sources

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LO/TOSix Steps of LO/TO (contd)

• 4. Apply Locks Tags if something can be
  locked, it MUST be locked if it cant be locked
  it MUST be tagged
• 5. Release Stored Energy guard against residual
  energy
• 6. Verification try activating start button to
  ensure everything is off, check interlock, and be
  sure area is clear

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LO/TOWhen Work is Complete

• Remove tools equipment
• Keep a safe distance
• Remove LO/TO devices
• Restore energy
• Notify operators and supervisors work is complete

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LO/TODoesnt Apply When

• Performing routine adjustments
• Performing repetitive adjustments
• Working on cord plug equipment kept within
  sight
• Integral with production
• Always use safe work practices

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LO/TOEmployee Training

• Employer must provide initial training and
  retraining as necessary
• Training must be certified with employees name
  and date of training

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LO/TOWritten Procedures

• Routine lockouts require the company to maintain
  a written procedure for
• Each individual machine or piece of equipment, or
• Each group of similar machines or equipment
• Non-routine lockouts must have a specific written
  procedure for the lockout activity.

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LO/TOWritten Procedures

• Procedures must have
• A statement of the intended use of the procedure
• Procedural steps for the LOTO process for that
  type of equipment. Specific steps for testing a
  machine to determine if a zero energy state is
  achieved
• Steps to release or remove the equipment from
  LOTO

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LO/TOPeriodic Inspections

• Performed at least annually to assure that the
  energy control procedures are effective and
  continue to be implemented
• Inspection must be certified identify machinery
  and equipment, record the date, and note
  employees included in the inspection
• Review with all authorized users

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LO/TOTag-Only Situations

• When machine or equipment cannot be locked out
• Employer may choose to modify to allow 100
  LO/TO
• Full protection includes complying with all Tag
  Out provisions, plus implementing additional
  safety measures

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LO/TOGroup LO/TO

• Group LO/TO includes having each authorized
  employee place his/her lock and tag on equipment
  being locked out
• See www.osha.gov/dts/osta/lototraining/tutorial/gr
  -loto.htm for examples of group procedures
• Shift or Personnel Change specific procedures
  are utilized during shift changes

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LO/TOAbsentee Lock Removal

• One person at the company is designated
• This designated person must
• Make reasonable efforts to find the absentee
  individual
• Ensure it is safe to remove the device
• Absent Authorized Individual must be notified
  BEFORE resuming work at the facility.

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LO/TOSummary

• LO/TO provides for control of energy sources that
  could cause injury during service or maintenance
  of machinery and equipment
• Devices must be unique and substantial
• Authorized Individuals are the ONLY people who
  can apply locks, tags and other LO/TO devices
• Tags must identify who applied the device
• Six steps must be followed.
• Written procedures must be developed
• Group lockouts and Absentee lock removal
  processes defined