Which hand motion signifies the action to retract the boom of a crane?

The action to retract the boom of a crane is represented by making two fists with the thumbs pointing at each other. This hand motion is commonly used in crane operations to indicate that the boom should be moved back toward the crane's body. In the context of crane signaling, clear and specific motions are crucial for effective communication between the operator and signal person to ensure safety and precision during operations.

Understanding the correct signal helps prevent accidents and miscommunication on job sites, where distinguishing between various motions is critical for safe equipment operation. In this case, the specific gesture of two fists with thumbs pointing at each other succinctly conveys the need to retract the crane's boom, aligning with established hand signaling protocols used in the industry.