What should be done after receiving a signal to release the brakes during the AFM test?

Releasing the brakes during the Air Brake and Train Handling test is a critical step in ensuring that the train is ready to move safely and efficiently. When you receive a signal to release the brakes, the appropriate action is to move the automatic brake valve handles to the RELEASE position. This function is essential because it activates the air brake system, allowing the train to prepare for movement.

Properly releasing the brakes ensures that there is no unnecessary drag on the train, which can affect its ability to accelerate and maintain speed following the test. This procedure must be executed correctly to verify that the braking system is functioning as intended.

While other actions, such as notifying the dispatcher, checking the coupling between cars, or inspecting the locomotive for defects, are important in various contexts of train operations and safety checks, they are not the immediate actions required upon receiving a signal to release the brakes during this specific test. Focusing on moving the brake handles to the RELEASE position directly addresses the instruction given by the signal and is essential for advancing the test procedures and maintaining operational safety.