Final answer:
If a train operator cannot move the controller handle from the OFF position, they should first check the power supply, batteries, and connections. If no issues are found, consult a technician.
Step-by-step explanation:
If a train operator cannot move his controller handle from the OFF position, he should first check if the power supply to the train is turned on. This could be a simple issue of the train not being properly connected to the power source. The operator should verify if the train's batteries are properly charged or if there are any loose connections.
Additionally, the train operator should check if the control system or the controller itself is faulty. This could be due to a malfunction in the control system, such as a blown fuse or a damaged controller handle.
If none of these issues are present, the operator should consult with a qualified technician or contact the train maintenance team for further assistance.