Air over electric trailer brake controllers offer a unique and efficient braking solution for trailers that require precise control. This system combines the benefits of both air and electric braking mechanisms, providing superior performance, especially for heavier trailers. In this guide, we will explore what an air over electric trailer brake controller is, how it works, and how to adjust and maintain it for optimal performance.
What is an Air Over Electric Trailer Brake Controller?
An air over electric trailer brake controller is a hybrid system that combines the braking force of air brakes with the precision of an electric brake controller. This type of brake controller is typically used on trailers that are equipped with air brakes but need the control and fine-tuning offered by an electric brake system. It allows for better modulation of braking force, making it ideal for trailers carrying heavy loads or those used in rugged terrains.
How Does an Air Over Electric Brake Controller Work?
In an air over electric system, the brake controller manages the application of electric brakes while simultaneously activating the trailer’s air brakes. The system uses compressed air to engage the mechanical brake components, while the electric brake controller adjusts the intensity and timing of the braking force. This combination offers superior stopping power and control, particularly in situations that require a more delicate balance of braking power.
- Air Brake Activation: When the driver presses the brake pedal, air pressure is sent to the trailer’s air brakes.
- Electric Brake Modulation: The electric brake controller adjusts the braking force based on the pressure applied to the brake pedal, ensuring smooth and proportional braking.
Benefits of Air Over Electric Trailer Brake Controllers
This hybrid braking system offers several key benefits, including:
- Superior Stopping Power: The combination of air and electric brakes provides powerful stopping ability, making it ideal for larger trailers or those carrying heavy loads.
- Enhanced Control: Electric brake controllers offer precise modulation, allowing for smoother braking transitions and better control, especially in varying road conditions.
- Reduced Brake Wear: The proportional braking offered by the electric brake controller helps reduce wear on the trailer’s brake components, extending their lifespan.
- Increased Safety: Air over electric systems improve the safety of towing by ensuring that the brakes engage quickly and efficiently, even under heavy loads or in emergency situations.
Step-by-Step Guide to Adjusting an Air Over Electric Trailer Brake Controller
Properly adjusting an air over electric trailer brake controller is essential for achieving optimal braking performance. Follow these steps to ensure that your brake controller is set correctly.
1. Install the Controller
If you haven’t already done so, install the air over electric brake controller in your towing vehicle. The controller should be mounted within easy reach of the driver and connected to the trailer’s braking system according to the manufacturer’s instructions.
2. Set the Initial Gain
The gain control determines how much braking power is sent to the trailer’s brakes. Start by setting the gain to the manufacturer’s recommended level based on your trailer’s weight. For heavier trailers, a higher gain setting will be needed, while lighter trailers require a lower setting.
3. Adjust Air Pressure
Ensure that the air pressure in the trailer’s braking system is set according to the trailer manufacturer’s specifications. The air pressure must be balanced with the electric brake controller to ensure smooth and effective braking.
4. Test the System
Drive the trailer to a safe area, such as an empty parking lot, and test the brakes at low speeds. Apply the brakes and observe how the trailer responds. If the brakes feel too aggressive or lock up, reduce the gain. If the trailer doesn’t seem to be stopping quickly enough, increase the gain.
5. Fine-Tune the Sensitivity
The sensitivity control adjusts how quickly the electric brakes respond to the driver’s brake input. Start with the sensitivity at a medium setting and adjust it based on how the trailer reacts. For smoother braking, reduce the sensitivity, and for quicker engagement, increase it.
6. Test Under Different Conditions
Test the brake controller under different road conditions, such as hills or rough terrain. Adjust the settings as needed to ensure that the brakes engage proportionally and that the trailer stops smoothly.
Common Issues with Air Over Electric Trailer Brake Controllers
If your air over electric trailer brake controller isn’t functioning correctly, there are several common issues to troubleshoot:
- Inconsistent Braking: If the brakes engage unevenly, check the air pressure levels and ensure that the gain is set correctly.
- Brakes Locking Up: This is usually caused by the gain being set too high. Reduce the gain and test again.
- Brake Delay: If there is a delay in brake response, check the wiring connections and ensure that both the air and electric systems are functioning properly.
Maintenance Tips for Air Over Electric Trailer Brake Controllers
To keep your air over electric trailer brake controller in good working condition, follow these maintenance tips:
- Inspect Regularly: Check the air lines, wiring connections, and brake components for signs of wear or damage. Replace any worn parts promptly.
- Clean the System: Keep the controller and air system free from dirt, debris, and moisture. Clean and dry the components regularly to prevent malfunctions.
- Test Before Every Trip: Before each trip, perform a test of the brake controller settings to ensure the system is working as expected and that the trailer is stopping safely.
Conclusion
Air over electric trailer brake controllers provide a powerful and precise braking solution for trailers, particularly those carrying heavy loads or traveling in demanding conditions. By adjusting and maintaining your brake controller properly, you can ensure that your trailer brakes function efficiently, offering enhanced safety, control, and performance.