Before performing maintenance on ordnance facility equipment, what is the correct step?

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Multiple Choice

Before performing maintenance on ordnance facility equipment, what is the correct step?

Controlling hazardous energy before work is essential to prevent unexpected energization or energy release during maintenance. The correct step is to isolate all energy sources and apply locks and tags. This means identifying every energy source powering the equipment—electrical, hydraulic, pneumatic, mechanical, gravity, and any stored energy—and de-energizing or disconnecting them. Then place lockout devices on the energy control points and attach tags that identify the maintenance activity and the person responsible. This physical lock-and-tag setup ensures the equipment cannot be re-energized while work is in progress. After isolation, verify zero energy by attempting to operate controls or using the appropriate testing methods to confirm that no energy remains able to cause movement or startup. Only then should maintenance proceed. The other options fail because they allow energization during maintenance, or rely on after-the-fact actions that don’t protect workers during the task.

Controlling hazardous energy before work is essential to prevent unexpected energization or energy release during maintenance. The correct step is to isolate all energy sources and apply locks and tags. This means identifying every energy source powering the equipment—electrical, hydraulic, pneumatic, mechanical, gravity, and any stored energy—and de-energizing or disconnecting them. Then place lockout devices on the energy control points and attach tags that identify the maintenance activity and the person responsible. This physical lock-and-tag setup ensures the equipment cannot be re-energized while work is in progress. After isolation, verify zero energy by attempting to operate controls or using the appropriate testing methods to confirm that no energy remains able to cause movement or startup. Only then should maintenance proceed. The other options fail because they allow energization during maintenance, or rely on after-the-fact actions that don’t protect workers during the task.

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