Beatrice Lang
Lippert's forward self-adjusting RV brakes are electric drum brakes that have long been the dominant braking system used in travel trailers due to their reliability and low cost. They can be manually adjusted using a brake spoon, brake adjustment tool, or flathead screwdriver. This is done by turning the star wheel adjuster inside the brake chamber, which is typically located below the brake drum. It is recommended that you check and adjust your utility trailer brakes every 3,000 miles or 3 months.
Lippert Electric Trailer Brakes Characteristics and Values Table
| Characteristics | Values |
|---|---|
| Brake type | Electric drum brakes |
| Adjustment | Self-adjusting |
| Adjustment method | Manual adjustment with a brake tool or trailer brake spoon |
| Adjustment frequency | After the first 200 miles and then every 3,000 miles or 3 months |
| Brake components | Electromagnets, brake pads, brake controller |
| Brake controller function | Regulates the amount of power to the brakes |
| Brake pad engagement indication | Slight scraping sound or slight drag when tire spins |
| Installation | Possible to install on own, but professional installation recommended for safety |
| Cost | $96.03 for 12-by-2-inch brakes; $83.72 for 10-by-2.25-inch assemblies |
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What You'll Learn
- Electric trailer brakes use electrical signals, electromagnets and brake pads to help the trailer stop
- The built-in electromagnets draw power from the vehicle to squeeze the brake pads
- Use a trailer brake spoon, brake adjustment tool or flathead screwdriver to turn the star wheel adjuster
- Lippert's Forward Self-Adjusting RV Brakes can be manually adjusted
- Self-adjusting brakes do not require travelling in reverse to adjust
Electric trailer brakes use electrical signals, electromagnets and brake pads to help the trailer stop
Electric trailer brakes are an essential safety feature, and it is important to understand how they work and how to adjust them. Electric trailer brakes rely on electrical signals, electromagnets, and brake pads to bring the trailer to a stop. They are connected to the tow vehicle's power and regulated by a brake control unit. When the driver steps on the brakes, an electrical current is sent to the brake control, which then activates the trailer's brakes. This process is facilitated by an electrical connection between the trailer and the tow vehicle.
Lippert self-adjusting electric trailer brakes are designed to adjust automatically, whether the vehicle is moving forward or backward. However, they do require an initial adjustment. These self-adjusting brakes can be challenging to adjust manually due to the starwheel design and the attachment of the self-adjusting cable. It is recommended to refer to the procedure provided by Lippert for manual adjustments. Additionally, a device on the adjustment wheel prevents the shoes from adjusting inward, requiring manual intervention to move it out of the way.
To manually adjust Lippert electric trailer brakes, you may need a tool like a drum brake spoon. Troubleshooting information can also be helpful to identify any specific issues with your brakes. While self-adjusting brakes offer convenience, they may not always be sufficient, and manual adjustments may become necessary to ensure optimal braking performance.
It is worth noting that electric trailer brakes differ from surge (mechanical or hydraulic) brakes, which operate independently and rely on inertia to slow down. Electric trailer brakes, on the other hand, require an electric connection to function. They activate electromagnetic brake drums to create attrition and slow the trailer down. This process involves sending precise voltages to the trailer brakes to match the speed of the tow vehicle, resulting in a smoother and more efficient braking experience.
In conclusion, electric trailer brakes play a crucial role in trailer safety. Understanding their functioning and knowing how to adjust them, especially in the case of Lippert electric trailer brakes, can help ensure effective braking performance and a safer towing experience. Remember to consult official sources and professionals for detailed instructions and guidelines specific to your trailer's braking system.
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The built-in electromagnets draw power from the vehicle to squeeze the brake pads
Electric trailer brakes work by activating electromagnetic brake drums to create attrition and slow the trailer down. The built-in electromagnets draw power from the vehicle to squeeze the brake pads. This is done through an electrical connection on the trailer that plugs into the connector on the vehicle. Electrical wires run from the trailer connector to each brake on the axle, creating a complete circuit. When the driver steps on the brakes, a current is sent to the brake control in the vehicle, which then sends a current back to the trailer to activate the brakes.
The electric current controlling the brake force is supplied by a trailer brake controller, which provides the control current from the towing vehicle. This current magnetizes the brake magnet, attracting it to the drum face. When the magnet contacts this area, the resulting friction causes it to rotate, moving the actuating arm and pushing the brake pads out against the drum. The brake pads have a special material that resists the heat caused by friction. When the pads press against the inside of the drum, they prevent the wheel from spinning.
The brake controller plays a crucial role in this process. It continuously monitors the vehicle's dynamics and sends the precise amount of voltage to the trailer brakes, ensuring that the speed of the trailer matches that of the tow vehicle. This results in a smoother braking experience and more efficient braking, prolonging the life of the trailer brakes. For example, when descending a slope, using lower gears to slow down reduces brake wear. Inertia-based brake controllers detect the vehicle's deceleration and adjust the trailer's braking power accordingly.
While the self-adjusting nature of Lippert brakes can make manual adjustment challenging, it is possible to do so with tools like a drum brake spoon. The adjustment process involves accessing the adjuster, a screw that fine-tunes brake behaviour to prevent unexpected brake force while maintaining responsiveness. Additionally, the brake shoes, magnet pad, and drum are wear items that require periodic inspection and replacement to ensure safe braking performance.
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Use a trailer brake spoon, brake adjustment tool or flathead screwdriver to turn the star wheel adjuster
Adjusting your trailer brakes is important for towing safely. To adjust the Lippert electric trailer brakes, you will need a trailer brake spoon, a brake adjustment tool, or a flat-head screwdriver.
First, jack up the trailer and access the brakes. The star wheel adjuster is typically located inside the brake chamber, below the brake drum. Using your tool of choice, push down on the brake spoon handle so that the adjuster wheel is pried upward. This will tighten the brake pads or shoes.
Now, turn the wheel one click at a time. After each click, spin the tire to make sure it spins freely. Once the trailer tire becomes difficult to turn, stop tightening the adjuster. If you need to, you can pry upward on the adjustment tool to loosen the adjuster wheel. The tire should spin freely but still have a slight scraping sound or slight drag, indicating that the trailer brake pads are properly engaged.
Finally, replace the cover on the trailer brake access point. It is also a good idea to check the torque on your trailer tire nuts at this point. Follow a star pattern and make sure each one is torqued to the manufacturer’s specifications.
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Lippert's Forward Self-Adjusting RV Brakes can be manually adjusted
Lippert Components, Inc.'s Forward Self-Adjusting RV Brakes are designed to eliminate the need for periodic adjustments, which are required for standard electric drum brakes. These self-adjusting brakes can adjust themselves during every forward stop, providing up to 50% better braking distance. They also help prevent premature brake line and magnet wear, making them a safer option for travel trailers.
However, it is important to note that even self-adjusting brakes require an initial adjustment. While these brakes are designed to reduce maintenance costs and provide convenience while on the road, there may be instances where manual adjustment is necessary. For example, if you have a brand new trailer with new self-adjusting brakes, you may need to perform an initial adjustment.
To manually adjust Lippert's Forward Self-Adjusting RV Brakes, you can use a drum brake spoon, such as the #W80630. This tool can help you fine-tune the brake settings to ensure optimal performance. Alternatively, you can take your trailer to an empty parking lot, reach a speed of 25 mph, and then apply the brakes using the manual override on your brake controller. This method will result in a hard stop, similar to an emergency brake application, but it should properly adjust the brakes after a few attempts.
It is important to consult the Lippert manuals, videos, and FAQs for detailed instructions on adjusting their Forward Self-Adjusting RV Brakes. While these brakes are designed to self-adjust, understanding the manual adjustment process can be helpful for troubleshooting and optimizing brake performance. Remember that adjusting self-adjusting brakes can be more complex than manual brakes due to the starwheel and the configuration of the self-adjusting cable.
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Self-adjusting brakes do not require travelling in reverse to adjust
Self-adjusting brakes, such as the Lippert self-adjusting brakes, do not require travelling in reverse to adjust. This is because they can adjust themselves both when the vehicle is moving forward and backward. This is in contrast to older self-adjusting brakes, which required the driver to reverse the vehicle for the self-adjusters to work.
Self-adjusting brakes play a critical role in a vehicle's safety by ensuring consistent braking power even as components wear. They automatically maintain the optimal distance between the brake shoes and the drum to compensate for wear and tear. This ensures that the brakes remain effective. The key components enabling this autonomous compensation are the adjuster lever and the star wheel.
The adjuster lever holds a pivotal role by nudging the adjuster gear forward one tooth whenever there is an expansion of space between the brake drum and shoe during reverse stops. The star wheel adjuster is essential for maintaining the appropriate distance between the brake shoes and the drum. It facilitates adjustments, making them more or less snug as necessary.
Despite the self-adjustment feature, self-adjusting brakes require regular inspections and manual adjustments to ensure peak performance. This involves specific tools like a brake spoon. The initial manual adjustment is crucial for setting the base for the self-adjustment mechanism.
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Frequently asked questions
You will need a trailer brake spoon, brake adjustment tool or flathead screwdriver.
First, jack up the trailer and access the brakes. Then, turn the star wheel adjuster inside the brake chamber, usually located below the brake drum. Push down on the brake spoon handle so that the adjuster wheel is pried upward, tightening the brake pads or shoes. Turn the wheel one click at a time, spinning the tire between each click. Once the trailer tire becomes difficult to turn, stop tightening the adjuster.
It is recommended that you check and adjust your trailer brakes every 3,000 miles or 3 months. Self-adjusting brakes only require one initial adjustment.
