What is the main purpose of a lockout/tagout (LOTO) procedure?

The main purpose of a lockout/tagout (LOTO) procedure is to establish a safety protocol that ensures machines are securely shut off during maintenance or servicing. This practice is crucial for preventing accidental machine start-up, which can pose severe risks to maintenance personnel and other workers. By using lockout devices, workers can physically restrict access to the energy sources of machines, while tags communicate warnings that alert others to the presence of maintenance work.

This procedure not only protects the workers performing maintenance but also ensures that all energy sources, whether electrical, mechanical, hydraulic, or pneumatic, are properly addressed. The use of LOTO contributes to a safer work environment by minimizing the risk of injuries that could occur if machines were inadvertently activated.

Other options do not align with the core intent of LOTO. Identifying malfunctioning equipment does serve an important function in safety and maintenance, but it is not the primary focus of a lockout/tagout procedure. Similarly, improving machine efficiency is related to operational performance and does not address the safety measures intended by LOTO. Training employees on safety procedures is essential as well, but LOTO specifically pertains to the actions taken during maintenance to ensure safety rather than general safety training.