What condition should the independent brake valve handle and MU-2A valve be in before connecting the BN 7042 as a trailing locomotive?

Before connecting the BN 7042 as a trailing locomotive, the appropriate condition for the independent brake valve handle and the MU-2A valve is to have them fully applied and lead. This setting ensures that the trailing locomotive is properly prepared for operational readiness.

When the independent brake valve is fully applied, it engages the brakes effectively, allowing for a secure connection to be made without risk of unintended movement. The MU-2A valve in the lead position facilitates communication and control between the lead locomotive and the trailing unit, helping to synchronize the braking systems and operational functions.

This ensures a smooth transition and safe operation during the coupling process. Other conditions, such as those that suggest the brakes are released and dead, would not provide the necessary control and safety needed when connecting locomotives. Similarly, a normal service and cut out or locked and operational states may not provide the appropriate operational readiness required at the time of connection.