What action should be taken if the whistle fails during operation?

The appropriate action when the whistle fails during operation is to continue the movement while ringing the bell continuously. In situations where train whistles are unavailable, the bell serves as an alternative means of signaling. It serves to alert others of the train's approach, enhancing safety for both the crew and those near the tracks. Continuous ringing of the bell provides a warning to pedestrians and vehicles that a train is moving, thereby mitigating potential accidents.

Stopping the train immediately may not always be feasible or safe, especially if doing so could lead to hazards from trailing traffic or other operational concerns. Instead, the procedure emphasizes maintaining safe operations while using available signaling methods. Notifying the dispatcher is important in many scenarios, but it is crucial to ensure that safety signals are maintained during operations.