A Lock-Out and Tag-Out (LOTO) lock or tag can only be removed by the authorized employee who placed it on the machine. In the event that the authorized employee is unavailable, a designated supervisor or manager may remove the lock or tag, but only after following specific procedures to ensure that the machine is safe to operate. This typically involves verifying that all employees are clear of the machine and that it is safe to re-energize the equipment.
A tag out is placing a tag on a piece of equipment notifying any potential user of that equipment that it is defective. A lock out is using a device that physically prevents use of the equipment, such as a trigger lock on a pistol.
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a device that uses a positive means such as a lock to hold an energy isolating device in a safe position and prevent the energizing of the equipment and/or machinery being worked on
Drilling the lock of a Coke machine to open it is generally not advisable, as it can damage the machine and may be illegal if you do not own it. Additionally, many machines have reinforced locks designed to resist drilling. If you're locked out of a machine you own, it’s better to contact the manufacturer or a professional locksmith for assistance.
A door key functions as a type of simple machine known as a lever. When the key is inserted into the lock and turned, it applies force to the locking mechanism, allowing it to engage or disengage. This action effectively multiplies the input force, enabling the user to unlock or lock the door easily.
Lockout/Tagout (LOTO) is a safety procedure used to ensure that machinery is properly shut off and not able to be started up again before maintenance or servicing work is completed. It involves placing a lock (lockout) on the energy-isolating devices and a tag (tagout) to warn others that the machinery should not be operated. This practice is critical for preventing accidental machine startup, protecting workers from injuries, and ensuring a safe working environment. Compliance with LOTO regulations is essential in industries where machinery poses potential hazards.
It is a written system of how hazardous energy will be controlled before a worker is exposed to it. For instance, when repairing a machine, if the machine were started while a worker was still making repairs, the worker could be killed or injured. Lock out/ tag out would prescribe how to turn off all power, lock it in the off position, tag it (what is turned off, by who, when, why) and release or block all stored energy in the machine.
Proper lockout tagout practices safeguard workers from the release of hazardous energy. Workers must be trained in the function of the energy control program and have the skills required for safe application usage and removal of the energy control devices.
Lockout procedures are discussed in Chapter 13 of AFOSH 91-501. This chapter provides guidelines and requirements for implementing lockout/tagout procedures to control hazardous energy sources and prevent unexpected startup of equipment during maintenance or servicing.
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notify, Shut down, Isolate/Relieve Energy Source(s), Lock out, Verify, Perform
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the placement of both a lock and tag by an authorized worker on an energy isolating device in accordance with AFOSH 91-502 Chapter 21 to ensure that the energy-isolating device and the equipment being controlled cannot be operated until the lock is remove
Lockout Tagout (LOTO) procedures must include four essential elements: Preparation involves identifying the equipment and understanding the hazards; Lockout/Tagout requires applying locks and tags to energy-isolating devices to prevent accidental re-energization; Verification ensures that the equipment is properly isolated and that no energy sources are active; and Release outlines the steps for safely removing locks and tags once maintenance is complete, ensuring all personnel are informed before re-energization. These elements are crucial for ensuring worker safety during maintenance activities.
Group lockout tag out is a safety procedure where multiple individuals working on the same equipment or machinery each place their own lock and tag on the energy isolation point. This ensures that everyone in the group is aware of who is working on the equipment and prevents the equipment from being energized until all locks and tags are removed. It helps to enhance safety by providing visual confirmation that all workers are accounted for and protected.
To lock out an SF6 (sulfur hexafluoride) circuit breaker, follow standard lockout/tagout (LOTO) procedures. First, ensure the breaker is in the "off" position, then isolate the power supply by opening disconnect switches or circuit breakers upstream. Place a lock on the operating mechanism and attach a tag indicating that maintenance is being performed. Finally, verify that the breaker is de-energized and cannot be operated until the lock is removed by authorized personnel.