Lockout Tagout

2. Most accidents are caused
by the uncontrolled release
of hazardous energy.
Many of these accidents
can be prevented by
proper lock-out/tag-out
procedures.
OSHA’s standard is
designed to prevent
needless deaths and
serious injury to workers by
controlling hazardous
energy.

3.  This training is intended to provide a general overview of Lock-out/Tag-
out Systems used in today’s workplace.
 This awareness information will not provide specific direction in using
lock-out/tag-out in confined space rescue operations.

4. • Define what is lock-out/tag-out
• Determine when lock-out/tag-out should
be used
• Define energy as it applies to this area
• Apply lock-out/tag-out guidelines
• Describe procedures for removing lock-
out/tag-out

5. • A disconnect switch, circuit breaker, valve or other
energy isolating mechanism is put in a safe or “off”
position.
• A device is often placed over the energy isolating
mechanism to hold it in a safe position.
• A lock is attached so the equipment cannot be
energized.

6. • In a tag-out, the energy isolating
device is placed in a safe position and
a written warning is attached to it. All
lock-out/tag- out materials are
supplied by the employer.

7. • Lock-out/tag-out is necessary
whenever you are performing
service or maintenance around
any machine where you can be
injured.
• When placing any portion of
your body in a position that
may be caught in moving
machinery
• Any work in or near electrically
charged machinery.

8.  Unexpected start-up of the equipment
 Release of stored energy

9.  Energy can be defined in many areas.
For the purposes of these guidelines,
energy is defined as the following:
 Energy is the movement or the possibility of movement
 Whenever the power switch is “on” or “off”, energy as some sort is always
present in any powered equipment
 Energy can come from the force caused by the motion of an object, or potential
energy, or force stored in an object that is not moving.

10.  Before you turn off any equipment, in
order to lock or tag it out, you must
know:
 The type and amount of energy that
powers it
 The hazard of that energy
 How the energy can be controlled
applying lock-out/tag-out guidelines

11. applying lock-out/tag-out guidelines
 Shut the system down by using its operating controls.
 Follow the proper procedure which is right for that equipment.
 Assistance from employees knowledgeable with the equipment

12. • Operate all energy isolating devices so the equipment is
isolated from its energy source
• Be sure to isolate all energy sources, secondary power supply,
as well as the main one
• Never pull an electrical switch while it is under load
• Never remove a fuse instead of disconnecting
 Make sure all danger areas are cleared of personnel
 Verify that the main disconnect switch or breaker can’t be
moved to “on” position
 Press all start buttons and other controls on the equipment
 Shut off all machine controls when testing is finished
verification

13.  Isolating devices are to be locked, tagged
or both
 Use only standardized devices supplied
by your employer
 If tags are used instead of locks, attach
them at the same point as a lock or as
close as possible
 If no tags available, post a firefighter at
the energy source

14.  To guard against stored energy
residual; do any of the following.
 Inspect the system
 Relieve trapped pressure
 Release tension on springs
 Block or brace parts that may
fall
 Gravity
 Bleed the lines and leave vent
port open
 Process piping systems and
close valves

15.  Contact Incident Command
 Remove only the tags you put in place
 Make sure equipment is safe to operate
 Remove all tools from work area
 Safeguard all employees
 Conduct a head count to assure everyone is clear of the equipment
and make notification that lock-out/tag-out is being removed
 Follow a check list if there are required steps to re-energize the system

16. According to OSHA, how many workplace deaths are attributed
to improper use of lock-out/tag-out annually?
According to OSHA, 2% of workplace deaths could be
avoided by proper implementation of lock-out/tag-out
procedures.
What are the four major types of energy sources which require
lock-out/tag-out?
Electrical
Mechanical
Hydraulic
Chemical

17. What is the last step of the lock-out/tag-out procedure?
Verify the isolation of energy and
assure stored energy has been released.
How often should lock-out/tag-out procedures be inspected?
They must be reviewed annually in the workplace.

18. This presentation shared by Snohomish County Fire District 7