Before inspecting an overhead crane, which procedure should be used to ensure safety?

Before inspecting an overhead crane, which procedure should be used to ensure safety?

• A. Lift hoist to highest level
• B. Notify supervisor
• C. Turn off power
• D. Use a lockout procedure

Answer: (D)

The main concept is isolating all energy sources and preventing re-energization during inspection by applying a lockout procedure. Lockout/tagout physically locks the crane’s power source (like the main disconnect) and places a labeled tag so that no one can re-energize the equipment until the worker who set it removes the lock. This ensures the crane cannot move and nobody can unexpectedly start the system while you’re inspecting, addressing electrical, hydraulic, pneumatic, and gravity-related energy. Turning off power alone isn’t enough because it can be reversed or overridden; a lockout provides a formal, verifiable control that remains in place until the inspection is complete and the lock is removed by the responsible person. Notifying a supervisor and positioning the hoist at a certain level don’t eliminate energy hazards. A thorough lockout ensures zero energy state, including released stored energy, so the crane is truly safe to inspect.

The main concept is isolating all energy sources and preventing re-energization during inspection by applying a lockout procedure. Lockout/tagout physically locks the crane’s power source (like the main disconnect) and places a labeled tag so that no one can re-energize the equipment until the worker who set it removes the lock. This ensures the crane cannot move and nobody can unexpectedly start the system while you’re inspecting, addressing electrical, hydraulic, pneumatic, and gravity-related energy.

Turning off power alone isn’t enough because it can be reversed or overridden; a lockout provides a formal, verifiable control that remains in place until the inspection is complete and the lock is removed by the responsible person. Notifying a supervisor and positioning the hoist at a certain level don’t eliminate energy hazards. A thorough lockout ensures zero energy state, including released stored energy, so the crane is truly safe to inspect.