Lockout/Tagout

Lockout - Tagout

Control of Hazardous Energy

OSHA Standard 1910.147

What Is Lockout/Tagout?

Referred to as LOTO

Blocks the flow of energy from power source to the equipment

Provides means of warning (tag)

Why is Lockout/Tagout Important?

OSHA’s Top 10 Most Cited Violations:– Lockout / Tagout has ranked 4th on the list for

the last two years.– Over 4,000 violations per year.

Types of Energy

Electrical Mechanical Chemical Thermal Hydraulic Pneumatic

Use Safe Electrical Practices

Use non-conducting tools.

Check circuits dead before working.

Ensure all control power is de-energized.

Discharge all capacitors after lockout.

Mechanical Energy Hazards

Kinetic – energy in motionPotential - stored energy Energy stored in machinery Weights & Springs Pistons under pressure Hydraulic controls

Stored potential energy can be released during work causing

injury or death.

Chemical Energy Hazards

Chemicals have energy that can: start fires cause skin burns generate harmful gases or fumes

Before working – release, drain or vent chemicals safely.

Thermal Energy Hazards

Energy of Heat and Cold Hot or cold equipment & fluids can burn you Quick releases of compressed gases can freeze

your skin

Allow equipment to reach a safe temperature before starting work.

Hydraulic Energy

Energy of Liquids Under Pressure pressure can cause equipment to

move rapid release can cause injury or ejection of

system parts

Block energy or relieve pressure slowly into a proper container.

Pneumatic Energy Hazards

Energy of Compressed Gases – uncontrolled release can cause injury – rapid de-pressurization creates extreme low

temperature

Properly vent all systems before starting work.

LOTO Procedure

1. Prepare for Shutdown

2. Shutdown Equipment

3. Isolate all energy sources

4. Place Locks & Tags

5. Release Stored Energy

6. Verify Equipment Isolation

1. Prepare for Shutdown

Understand equipment hazards! Notify other employees of shutdown.

2. Shutdown Equipment

Follow normal shutdown procedure.

Turn all switches to the OFF position.

Shut all valves. Disable all sources of

energy!

3. Isolate All Energy Sources

Shut valves Open breakers &

disconnects

4. Place Locks & Tags

Valves Breakers / electrical

disconnects Block or disconnect

all lines

5. Release or Block all Stored Energy

Discharge capacitors Block or release springs Block elevated parts Stop rotating parts Relieve system pressure Drain fluids Vent gases Allow system to cool

6. Verify Equipment Isolation

Check all other workers are clear of the equipment.

Check locking devices securely placed. Check isolation. Attempt normal startup. Return Controls to OFF/Neutral.

Items needed for LOTO

Written LOTO procedures Locks & Tags Hasps --for multiple locks

& tags Breaker Lockouts Gate Valve Lockouts Ball Valve Lockouts

Types of Lockout Devices

Locks Blocks Chains Multilock hasps Wheel valve covers Ball valve covers

Requirements for Lockout/Tagout Devices

They must be:– Durable

– Standardized

– Substantial

– Identifiable

Typical Equipment Requiring LOTO

Presses Saws Conveyors Pumps Production

equipment Trash

compactors Ovens

Affected Employees

Employees who Operate Work around Occasionally

adjust equipment that is subject to LOTO

Affected Employee Responsibilities

Notify maintenance, etc., when equipment needs repair or adjustment

Leave all LOTO devices in place Verify equipment is safe to operate

following LOTO Follow all safety rules while operating the

equipment

Authorized Employee

Maintains equipment Services equipment Is trained to use LOTO

Repair or service equipment as needed Ensure that all energy sources are locked out Test equipment to verify residual energy is

dissipated Place a “Danger—Do Not Operate” tag on

equipment Obtain assistance when necessary Remove locks and/or tags following LOTO Coordinate multi-shift repair

Authorized Employee Responsibilities

Authorized employees—initially and at least annually

Affected employees—at least initially Authorized and affected—whenever

changes are made to jobs or procedures Authorized and affected—when program

deficiencies are noted

Training Requirements

Ensure de-energization of equipment Ensure employee awareness Provide appropriate levels of training Review program effectiveness Maintain and revise program Administer appropriate disciplinary actions

Company Responsibilities

When Must LOTO Be Used?

When servicing or maintaining equipment where: Hazardous energy exists Unexpected start-up could occur Employees are required to remove or bypass a

safety device Employees are required to place any part

of their body in harm’s way Employees are exposed to hazardous energy

Work where hazardous energy does not exist

Activities performed during routine production processes

Work on cord-controlled devices Hot tap operations where shutdown

is not feasible

LOTO Exceptions

Releasing Equipment from LOTO

Inspect Area and Equipment. Ensure all Machine Guards in place. Move tools away from equipment. Inform others of startup. Restore system connections. Remove Locks & Tags. Restore equipment to normal. Conduct normal startup.

Know the Equipment!

– Hazards – Energy isolation points – Lockout/Tagout

procedures

Working on unfamiliar machinery is a hazard!

Who Can Lockout Equipment?

Only employees who have

been trained and

authorized by management.

Who can remove Locks & Tags?

Only the employee who placed the tag

or

a supervisor, after obtaining permission from the worker who placed the tag.

Lockout-Tagout Protects YOU!

ALWAYS Use Proper Lockout -

Tagout Procedures

They are for your protection!!!