FREE CDL Air Brake Dangers and Safety Questions and Answers
What can cause brake fade or failure?
Brake fade or failure occurs when brakes overheat, reducing their effectiveness. Excessive use of service brakes (e.g., during long downhill drives) generates too much heat. To avoid this, use proper gear selection and controlled braking techniques.
What should you do if your low air pressure warning activates?
The low air pressure warning signals a serious problem with the brake system, typically at 55-75 psi. Continuing to drive risks a total brake failure. Parking safely allows the spring brakes to engage before total air loss occurs.
How can you avoid brake fade when driving downhill?
Using a lower gear reduces reliance on brakes by letting the engine slow the vehicle. Applying brakes only briefly and firmly when needed prevents overheating and brake fade. Continuous or excessive braking leads to heat buildup and reduced stopping power.
How often should air tanks be drained?
Air tanks accumulate moisture and oil, which can freeze and damage the brake system in cold weather. Draining tanks daily ensures the system stays functional and safe.
When should you avoid using the parking brake?
Hot brakes can stick if the parking brake is applied immediately after heavy use, leading to damage. In freezing temperatures, moisture in the system can cause the brakes to freeze. Use wheel chocks in these situations instead.