What action should be taken if a mobile crane operator signals to use the whip line?

When a mobile crane operator signals to use the whip line, the appropriate action is to prepare for lifting. The whip line is a secondary line used for lifting lighter loads or assisting in the movement of the main load, and the operator’s signal indicates that they are about to execute a lift using this line.

Preparing for lifting includes ensuring that all safety protocols are in place, the area is clear of personnel, and that the load has been properly attached and is secured. This proactive step is essential to ensure the safe and successful execution of the lift, as the operator relies on the crew to be ready and aware of the next operations.

Other options, such as changing the load or adjusting the hook, may be relevant in different contexts but do not specifically apply to the operator's signal to use the whip line. Stopping all operations could lead to unnecessary delays and situations where preparation is vital to maintain the workflow safely.