Why Choose Hydraulic Brakes Over Standard Electric Brakes?

In the video above Brad from Deutsche Hydrapro reviews why you would want electric-over-hydraulic brakes for your next Maxx-D Trailer. For trailer braking systems, the debate between hydraulic brakes and electric brakes is ongoing. While electric brakes are more commonly used, electric-over-hydraulic (EOH) brake actuators offer significant advantages that allow them to be the preferred choice for many heavy-duty towing applications and customers who use their trailer daily. In this article, we’ll explore why hydraulic brakes outperform electric brakes, the importance of proportional braking, and what sets the Deutsche Hydrapro EOH brake actuator apart from competitors.

Why Hydraulic Brakes Are More Powerful and Easier to Maintain

One of the biggest advantages of hydraulic brakes is their superior stopping power compared to standard electric brakes. Hydraulic brakes provide:

Stronger braking force, making them ideal for heavy loads.
Less maintenance, which extends the lifespan of the braking system.
A smoother braking experience, reducing wear and tear on both the trailer and tow vehicle.

Electric brakes are commonly used on pickup trucks, but if they were truly the best braking option, they would be used on all vehicles—including commercial trucks. Instead, hydraulic brakes offer better control, particularly when towing heavy loads.

The Importance of Proportional Braking for Safety

A critical factor in any braking system is the ability to proportionally control the force between the tow vehicle and the trailer. Without proper braking distribution, you may encounter:

Unequal braking, which can cause either the truck or trailer to apply more force than necessary.
Increased risk of jackknifing, especially in slick or emergency situations.
Trailer sway or lane departure, due to wheel lock-up or delayed braking response.

Hydraulic brakes, especially when controlled by an EOH actuator, ensure balanced and proportional braking. This prevents dangerous braking delays and enhances overall driving safety.

Why Deutsche Hydrapro EOH Brake Actuator Stands Out

Deutsche Hydrapro electric-over-hydraulic actuators are designed to provide the smoothest brake application with industry-leading compatibility. Here’s what makes it superior to competitors:

Deutsche Hydrapro Alpha G-1600

Advanced Proportional Brake Software
- Provides smoother brake engagement.
- Maintains higher pressure with less amperage, reducing strain on the system.
- Enhances driver confidence by ensuring seamless braking.
Larger Motor and Custom Hydraulic Pump
- Deutsche HydraPro uses a bigger, more efficient motor to deliver stronger braking force.
- The separate hydraulic fluid reservoir prevents leaks from reaching the circuit board, a common failure point in other brands.
Instant Compatibility with Newer Trucks
- Many modern tow vehicles use a ping function to detect connected trailers.
- Deutsche Hydrapro actuators feature a built-in compatibility adapter, making them ready for use with most new truck models.
- For vehicles lacking EOH brake settings, an aftermarket controller may be needed—just like adding a hitch to a truck.

Preventing Premature Wear on Your Actuator

A common issue with EOH braking systems is premature wear due to incompatible brake controllers. When towing a trailer with an electric-only brake setting, the system can still function, but:

The truck continuously sends power signals every four seconds.
This causes relay contact wear, significantly reducing actuator lifespan.

To avoid this problem, ensure your tow vehicle is properly set to EOH mode. If your truck doesn’t support this, an aftermarket brake controller is necessary.

Addressing Brake Lag and Response Time

Some drivers worry about brake lag—the time delay between pressing the brake pedal and the trailer brakes engaging. Deutsche Hydrapro products minimize this issue with:

Optimal actuator placement near the axles for reduced response time.
A high-powered motor that reaches 1000 PSI in just 0.118 seconds.
Faster and smoother brake engagement than other actuators on the market.

This reduces driver stress and provides instant braking response, even in emergency situations.

The Role of Proper Wiring in Brake Performance

One often-overlooked factor in EOH braking systems is wiring quality. Using undersized wiring can lead to:

Excessive heat buildup, which shortens motor lifespan.
Increased electrical resistance, reducing actuator efficiency.
Premature motor failure due to arcing inside the armature.

Deutsche HydraPro combats these issues with:

Heavy-duty sealed harnesses that support higher amperage.
Optimized wiring for consistent power delivery.
Longer-lasting actuators that withstand high braking loads.

When purchasing a trailer, ask about the wiring setup—it’s crucial for long-term performance.

How Proportional Braking Extends Actuator Life

A final advantage of Deutsche Hydrapro’s system is proportional braking technology. Unlike basic actuators, which continuously run while stopped:

Deutsche Hydrapro actuator only engages when braking force is needed.
New truck brake controllers automatically disable braking signals under 10 mph, preventing unnecessary strain.
This extends the actuator’s lifespan up to three times longer than standard systems.

This feature prevents overheating and ensures a durable, reliable braking system, even in high-traffic or long-haul situations.

Conclusion: Deutsche Hydrapro is the Best Choice for EOH Braking

For those hauling heavy loads, safety and reliability are top priorities. Deutsche Hydrapro electric-over-hydraulic brake actuator offers:

Stronger braking power than standard electric brakes.
Proportional braking control for safer towing.
Instant compatibility with new truck models.
Industry-leading response times with minimal brake lag.
Longer lifespan due to superior wiring and software.

If you’re looking for the most advanced EOH brake actuator on the market, Deutsche Hydrapro is the clear choice. Upgrade your braking system today and experience stronger, safer, and smoother stopping power with one of our dealers around the US!

Learn firsthand from a trailer manufacturer that allows you to buy a custom trailer

with our hydraulic brake system, at DiamondC.com.

Safety First

Before starting, take the necessary safety precautions:
✅ Make sure people around you are aware that you are working underneath the trailer.
✅ Secure the trailer on a stable lift or jack stands.
✅ Remove the wheels to access the brake components.

Tools & Materials You’ll Need

DOT 3 or DOT 4 Brake Fluid
7/16" Wrench or Socket
Brake Fluid Reservoir
Auto Filler (if available)

Step 1: Inspect the System

Before beginning the bleeding process:
🔹 Ensure all fittings are tight.
🔹 Visually inspect the brake fluid level in the reservoir.

If you don’t have an auto filler, have someone assist by manually refilling the reservoir as needed.

Step 2: Start Bleeding from the Rear Axle

Begin the bleeding process at the rear axle, as this helps push any air bubbles back toward the reservoir. Follow this order:

1️⃣ Rear Axle
2️⃣ Passenger Side Front
3️⃣ Driver’s Side Front

This sequence ensures the air bubbles travel toward the reservoir for proper removal.

Step 3: Loosen the Bleeder Valve

Use a 7/16" wrench to loosen the bleeder valve.
Attach a brake fluid reservoir or a clear hose to capture the expelled fluid and air.

Step 4: Activate the Brake Pump

Pull the Breakaway Pin to engage the brake pump.
Once the power is on, open the bleeder valve.
Watch for air bubbles in the brake fluid—this indicates air is still in the system.

Once the fluid runs clear with no bubbles, close the valve immediately to prevent leaks and ensure proper bleeding.

Step 5: Complete the Process

🔹 Close the auto-filler or manually top off the brake fluid.
🔹 Turn off the brake pump.
🔹 Reinsert the Breakaway Pin to finalize the process.

Final Check

Listen for a humming sound when engaging the pump to verify that your brakes are properly bled. The hum should last no more than two seconds before the brakes engage.

That’s it! Your hydraulic brake system is now bled and ready to go.

🔧 Regular brake maintenance is key to ensuring the safety and longevity of your trailer. Stay tuned for more maintenance tips and guides! Click here to see the full lineup of brake actuators.