When energizing the crane, which state is appropriate for the controller?

When energizing the crane, which state is appropriate for the controller?

• A. Raised
• B. Lowered
• C. Either raised or lowered
• D. Either neutral or off

Answer: (D)

When power is applied to the crane’s control system, you want no movement to be commanded. Keeping the controller in neutral or off prevents any rise, drop, swing, or travel commands from taking effect as power comes up. If the control were in a raised or lowered position, energizing could immediately send a movement command, creating a safety risk for nearby people and loads. Neutral or off is the safe, non-energized state that allows you to proceed with inspection or setup without unintended motion.

When power is applied to the crane’s control system, you want no movement to be commanded. Keeping the controller in neutral or off prevents any rise, drop, swing, or travel commands from taking effect as power comes up. If the control were in a raised or lowered position, energizing could immediately send a movement command, creating a safety risk for nearby people and loads. Neutral or off is the safe, non-energized state that allows you to proceed with inspection or setup without unintended motion.