Final answer:
Before checking the trouble with an inoperative brake system on a stopped train, the operator must apply manual brakes, potentially use wheel chocks, and follow specific safety protocols. They must communicate with the dispatcher and signal any nearby trains to ensure safety.
Step-by-step explanation:
If a train has been stopped by an emergency brake application and the brake system cannot be recharged, before leaving the train to check the trouble, the train operator must ensure that proper safety protocols are followed. This includes applying the manual brakes (handbrake or parking brake), where available, to secure the train and prevent any unintended movement. Since the air brake system may be compromised, relying on it solely is not prudent.
Depending on the railroad's operating rules and the country, the operator may also need to follow additional safety precautions such as placing wheel chocks if available, notifying the dispatcher or control center about the train's emergency status, and displaying red signals or red flags to warn other trains on adjacent tracks. These procedures are designed to ensure not only the operator's safety but also that of others who may be nearby or aboard any approaching trains. The priority is to prevent further incidents or complications from arising due to the stopped train.
After these precautions have been taken, the train operator may then proceed to check the issue with the brake system. Keeping communication open with the relevant authorities, the control center, and potentially other crew members is essential to inform them of findings and receive further instructions. Understanding and applying these procedural steps is vital for anyone responsible for the operations of a train.