What is the proper position of the ME-42 brake valve when running normally over the road?

When running normally over the road, the ME-42 brake valve should be in the "Running Release" position. This setting allows the train's braking system to function correctly while maintaining a state where the brakes are off and the train can operate smoothly. The "Running Release" position enables air to flow freely to the brake cylinders, allowing the train to continue moving without applying the brakes, which is essential for maintaining speed and control during regular operations.

The other settings, such as "Emergency mode" and "Full service," are used in specific situations where additional braking force is necessary, such as when an immediate stop is required or when a more severe braking application is needed to control the train's speed. The "Handle off" position indicates that the braking system is disengaged, which is not suitable for normal operation as it would prevent any brakes from engaging if needed. Thus, "Running Release" is the optimal position for safe and efficient travel over the road.