If the train does not roll freely when the controller is moved to the first point and then shut off, what should the train operator do?

When the train does not roll freely after moving the controller to the first point and then shutting it off, it indicates that there is likely an issue preventing the train from moving. The most appropriate course of action is to stop and have the conductor assist in checking that all hand brakes are off. This is critical because if any hand brakes are still engaged, it would cause the train to be immobile. Ensuring that all hand brakes are released is a fundamental safety procedure before investigating further.

If the train operator were to check the fuel level without addressing the hand brake situation, they might overlook the primary reason why the train is not rolling. Continuing to move the controller in hopes that it would free the train could lead to potential safety hazards and failures of equipment. Calling maintenance could be necessary later on, but the immediate concern should be addressing the possibility of engaged hand brakes, which is a straightforward check that can often resolve the issue directly.