Which of the following actions is NOT part of the uncoupling procedure on PA4 cars?

The uncoupling procedure on PA4 cars involves several critical steps aimed at ensuring safe operation and minimizing risks during the process. Conducting a visual inspection of the cars, while important for overall safety and operational integrity, is not specifically listed as part of the uncoupling procedure itself. Instead, the primary steps for uncoupling involve preparing the train, ensuring it is secured, and then proceeding with the actual uncoupling actions, such as charging the train, removing safety chains, and applying hand brakes to the section that remains.

In this context, while a visual inspection may occur before or after the uncoupling operation to check for any issues like brake condition or car alignment, it is not a direct action taken during the uncoupling process. This distinction emphasizes the specific tasks associated with uncoupling as opposed to broader safety checks that occur at different phases of operation.