What are the two acceptable methods for testing the brake system for leakage?

The Air Flow Method and the Brake Pipe Leakage Method are both recognized as acceptable approaches for testing the brake system for leakage.

The Air Flow Method involves monitoring the airflow through the brake system to identify any leaks that may interfere with the proper operation of the brakes. This method is effective because it allows a technician to pinpoint areas where air is escaping, ensuring that the brake pressure is maintained.

The Brake Pipe Leakage Method assesses the integrity of the brake pipe itself. This method typically involves pressurizing the brake pipe and observing any pressure drops that may suggest a leak. If there is a notable reduction in pressure over time, it indicates that there is a breach in the system that needs to be addressed.

Selecting these two methods aligns with industry best practices for ensuring brake safety and functionality, as they facilitate thorough examination of the brake system to prevent potential operational failures.