If a train operator cannot move the controller handle from the OFF position, what should he check first?

When a train operator encounters a situation where the controller handle cannot be moved from the OFF position, the first check should be whether the reverser is set to the forward position. The reverser is a critical control that indicates the direction the train should move. If it is not positioned correctly, the train's system will prevent any movement from the OFF position as a safety measure. The design of train control systems ensures that they cannot be inadvertently activated without proper alignment, thus prioritizing safe operations.

This protocol helps avoid accidental movement of the train, which could lead to hazardous situations. An incorrectly positioned reverser is often a common cause for handling issues. Following this check ensures that the operator can systematically troubleshoot the situation based on standard operating procedures.