What is the first step in conducting a locomotive air brake test?

In conducting a locomotive air brake test, the first step is to secure your consist with hand brakes. This action ensures that the train is safely immobilized before any testing begins, which is crucial for the safety of personnel and equipment. By securing the consist, you prevent any unintended movement during the air brake test, allowing for a controlled environment.

This foundational step is vital as it establishes a safety protocol before proceeding to the next steps, such as applying or releasing brakes. Once the train is secured, you can confidently move on to testing the brakes without the risk of the locomotive moving unexpectedly. The procedure emphasizes safety and proper protocols, making it essential to complete this action prior to any brake testing activities.