If the rear unit of a disturbed power train shuts down and cannot be restarted, what is the next step?

When the rear unit of a disturbed power train shuts down and cannot be restarted, the appropriate next step is to make arrangements with the dispatcher to conventionalize or re-marshal the train. This process involves assessing the train's situation and reorganizing the locomotive configuration or removing the inoperative units to safely continue the journey.

Effective communication with the dispatcher is crucial in this scenario, as they have the oversight and authority to coordinate actions across the rail network. They can provide guidance on how to manage the situation safely, which might include re-motoring the train or ensuring that operational protocols are followed for the ongoing journey.

Addressing the issue on-site, as with continuing to the next stop, may not be safe or feasible, especially if the rear unit significantly affects the train's performance. Disconnecting the rear unit entirely without the dispatcher’s input could lead to operational issues or safety concerns, and waiting for assistance may not be the most efficient or safe way to resolve the issue. Thus, making arrangements with the dispatcher to take appropriate action is the most effective and responsible approach.