What must you remember with an air brake system with air-drier?

In an air brake system with an air-drier, the main purpose is to remove moisture from the compressed air to prevent corrosion and freezing in the brake system. Regularly checking the water-drainage valves of the air tanks is important because it ensures that any accumulated water is properly drained, indicating that the air-drier is functioning well. Additionally, servicing the air-drier regularly is necessary to maintain its ability to remove moisture effectively. Checking the antifreeze level, however, applies more to cooling systems, not to the air-drier in air brake systems. Therefore, focusing on drainage valve checks and regular servicing helps keep the air brake system safe and reliable.