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726 Introduction to Machine Guarding
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Release from Lockout/Tagout

Once maintenance or servicing of a machine or piece of equipment is completed, a structured and cautious process must be followed to safely release it from lockout/tagout (LOTO) and return it to normal operation.

Image of a locked master switch on a panel
When the maintenance is completed, there are specific steps which must be taken to return the machine to service.

This critical procedure ensures that all hazardous energy sources are properly managed, safety devices are fully functional, and employees are protected from risks associated with reenergization. By adhering to the following steps, workers can verify that the equipment is safe to operate, the work area is clear of hazards, and all personnel are informed, minimizing the potential for accidents or injuries during the transition back to operational status.

These steps ensure the machine is safe to operate and that employees are protected from hazards during the reenergization process. Follow these procedures:

  1. Inspect the Work Area: Ensure all tools and parts are removed and the machine is fully reassembled.
  2. Check for Safety: Confirm that all employees are safely positioned away from the equipment.
  3. Verify Controls: Make sure all machine guards are reinstalled and settings are correct.
  4. Notify Affected Employees: Let all affected workers know that lockout/tagout devices will be removed.
  5. Remove Lockout/Tagout Devices: Each authorized employee must remove their own lock and tag.
  6. Restore Energy: Reconnect the power sources and prepare the equipment for startup.
  7. Test Equipment: Start the machine to ensure it operates safely and correctly.

Knowledge Check Choose the best answer for the question.

6-5. What is the first step for release from lockout/tagout?