Which action should be taken before working on controls that may disrupt plant operations?

Having an operator present before working on controls that may disrupt plant operations is crucial for maintaining safety and operational integrity. The operator is typically familiar with the system and can provide essential information about the current operation, including any critical processes that may be impacted by changes or maintenance work. Their presence ensures that, if any unexpected situation arises, immediate operational adjustments can be made to mitigate risks. Additionally, the operator can assist in communicating with other personnel who may be affected by the control changes and can help coordinate any necessary shutdowns or adjustments to maintain safety and efficiency within the plant. This collaborative approach not only enhances safety but also ensures that operational disruptions are minimized.

While reviewing the operation manual, checking weather conditions, and wearing personal protective equipment are all important safety practices, they do not provide the immediate oversight and communication essential for safely managing work on controls that could disrupt operations.