What should never be done unless authorized by the manufacturer’s load rating chart?

The correct approach is to recognize that the manufacturer's load rating chart is a critical resource that provides specific guidelines for safe lifting operations. The chart outlines the maximum weight that can be lifted safely under various conditions, including configurations of the equipment and the environment in which the lift is taking place.

"Pick and carry a load" refers to the action of lifting a load and then transporting it while it is still hoisted. This maneuver can alter the center of gravity and put unusual stress on the equipment and, potentially, the operator. If this action is not authorized specifically in the load rating chart, it might exceed the safe lifting capacity or ignore potential hazards that could arise from lateral movement of the load or instability during transport. Therefore, any pick and carry operation must always be referenced against the manufacturer's guidance to ensure safety and compliance with best practices.

The reason this action stands out from the others is that it introduces additional risks that are not inherently present in simply lifting or other actions, which may have established guidelines. It is crucial to follow all safety protocols and operating manuals when dealing with heavy equipment to avoid accidents and ensure compliance with regulations.