Does the air brake system have to be fully charged during all switching operations?

The air brake system must be fully charged during switching operations to ensure the safety and effective control of train movements. A fully charged brake system is crucial for providing the necessary stopping power, especially in situations where the train may need to make quick stops or adjustments. This ensures that the train is responsive and can be controlled effectively, reducing the risk of accidents or mishaps during switching operations.

Additionally, having a fully charged brake system helps to maintain consistent braking pressures and performance across all cars in the train, which is vital for safe operations. Other factors like the weight of the train or weather conditions are not sufficient justifications for operating with an uncharged or partially charged brake system, as these could compromise safety and operational efficiency.