In which position is the automatic brake valve handle placed to release air for charging the train brake system?

The automatic brake valve handle is placed in the release position to allow air to flow from the main reservoir into the train brake system, thus charging it. When the handle is moved to this position, it opens the pathway for the air to fill the brake lines and the individual brake cylinders, which is essential for preparing the train for operations. This action ensures that the air pressure reaches a suitable level so that the brakes can be applied effectively when necessary.

In contrast, the application position is used to apply the brakes, the neutral position serves as a resting or disengaged state where no air is being sent to the brakes, and the control position is typically associated with managing brake functions without fully engaging the application or release. Understanding these functions is crucial for safe train handling and efficient operation of the air brake system.