Why is it important to check the air brake system during winter?

Checking the air brake system during winter is crucial primarily because ice can form in the air lines, which can significantly affect brake performance. When moisture within the air brake system freezes, it can lead to blockages that prevent air from reaching the brake chambers. This blockage can cause the brakes to be less responsive or may even result in complete brake failure in extreme cases.

Additionally, since winter conditions often involve lower temperatures and the presence of moisture, it is especially important to ensure that the air system is functioning correctly to maintain safe braking under potentially hazardous driving conditions. Regular checks can prevent dangerous situations that might arise from reduced brake effectiveness, ensuring that the brakes perform reliably when needed.