Loto Security: 6 Steps to Lock/Tag

Sep. 08, 2020

LOTO stands for locked/listed. If the lockout/Tagout procedure is correctly completed before equipment repair or maintenance, hazardous energy can be controlled and workers can be protected from injury.

In this article, we will introduce the basics of lockout tagout and LOTO security. This will include some basic definitions, relevant OSHA regulations and information resources, and the steps to be followed when performing lockdowns.

Lock/tag and LOTO security purpose

When preparing to repair or maintain machines or equipment, they usually contain some form of "dangerous energy" that may cause injury to nearby people.

When we talk about hazardous energy, we are referring to any type of energy that can be released and may harm people. This may include the following types of energy:

  • Chemicals

  • Electrical

  • Hydraulic

  • Mechanical

  • Pneumatic

  • hot

  • Other energy

If proper LOTO safety procedures are not used, the equipment being repaired may accidentally start or release these forms of energy. This can result in injury or death to machine operators and even other people working in the area or living in the community.

The energy in machines and equipment, including electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other energy sources, may cause harm to workers. During the repair and maintenance of machines and equipment, accidental startup or release of stored energy may cause serious personal injury or even death.

Lockout Tagout

Lockout Tagout

Consider only a few examples:

A worker is repairing the press, another worker comes over and starts the press, and the repair worker is trapped in the press, resulting in amputation

The worker was repairing the connection in the pipeline, and somewhere in the same pipeline, another worker opened a valve to transport the liquid down the pipeline, eventually spilling and burning the maintenance personnel

A paper jam occurred in the conveyor belt. The worker reached out to try to clear the jam. The paper jam in the conveyor belt was suddenly and accidentally released, and the worker was crushed.

A worker was repairing the machine while the internal wiring inside the machine was short-circuited, which shocked the maintenance staff.

All of these are examples of hazardous energy sources that cause harm. This is the whole content of LOTO safety-these types of hazardous energy can be controlled so that they will never be released and will not cause harm.

The lock/list process should include the following six steps:

  • Preparation

  • Turn off

  • Isolation

  • Locked/listed

  • lEnergy storage inspection

  • Isolation verification

Let's take a closer look at each step of LOTO security in the following sections.

Locking/Listing Step 1: Preparation

The first step in locking and marking equipment for maintenance and upkeep is preparation.

In the preparation phase, authorized employees must investigate and fully understand all hazardous energy sources that may be controlled. In addition, it is important to determine the specific hazard, and of course the means to control that energy.

Lock/tag step 2: Shut down

After the plan is completed, the actual process of shutting down and locking the computer will begin.

At this time, it is time to shut down the machine or equipment to be repaired or maintained.

Another important part of this step is to notify all employees affected by the shutdown, even if they will not play a role in service or maintenance.

Locking/listing step 3: Isolation

The next step in the lockout/Tagout process is to isolate the machine or equipment from any energy source.

This can mean many things, such as turning off the power to the circuit breaker or closing the valve.


Lock/Mark Step 4: Lock/Mark

In cases where the machine or equipment is isolated from the energy source, the next step in locking/Tagout is to physically lock and tag the machine. It can be said that the entire six-step process is named after this step.

In this step, authorized employees connect locking and/or tagging equipment to each energy isolation device. The key is to apply the locking device to the energy isolation device in a certain way so that it is in a "safe" position unless the person performing the lock cannot move it to an unsafe position.

Marking means that the mark is also applied to the device. The tag includes the name and other information of the person performing the lock.

Lock/tag step 5: energy storage check

Even after the power is disconnected, in the third step of the locking safety process, and the machine is locked in the fourth step, this cannot completely guarantee that there is no dangerous energy storage or safety in the machine. Perform maintenance.

At this point, it is important to look for any hazardous energy or any "residual" energy "stored" in the machine. At this stage, any potentially dangerous stored or residual energy must be released, disconnected, restrained, or otherwise released in any other way.

Lock/tag step 6: Quarantine verification

The last step is to ensure.

Yes, you have turned off the machine, isolated it from the power supply, locked it out, and checked for dangerous energy storage. But now is the time to double-check if you did it right, and now you can safely work on the machine or equipment.

At this time, authorized employees will verify that the machine has been properly isolated and powered off.

Conclusion: Just 6 simple steps to ensure LOTO safety

We hope you liked our post and learned a few things from it, and the article lists the six basic steps of each lock/tag procedure.

We are the Valve Lockout supplier. If you have any questions about lockout/listing, please let us know and we will see if we can solve it for you.