The browser you are using is not supported. Please consider using a modern browser.
Trailer Maintenace
What are surge brakes?
Surge brakes are the most common braking system on boat trailers because they are simple, self-contained, and effective in wet conditions. They do not require an electric brake controller in the tow vehicle. Instead, they rely on the trailer’s momentum: when the tow vehicle slows down, the trailer pushes forward against the coupler. This compresses a hydraulic actuator, which sends brake fluid to the disc or drum brakes, slowing the trailer in sync with the tow vehicle.
Considerations when using surge brakes
Backing Up: To reverse with surge brakes, you may need to use a manual lockout pin or an electric solenoid. The lockout prevents the actuator from engaging the brakes in reverse.
Delayed Response: Surge brakes have a slight delay compared to electric brakes because they activate only after the tow vehicle slows down and the trailer pushes against the hitch. This requires drivers to allow more stopping distance when towing a trailer with surge brakes
Load Sensitivity: Braking performance depends on trailer weight distribution and tongue weight. A poorly balanced trailer may cause uneven or weak braking.
Maintenance
Fluid Levels: Regularly check the brake fluid levels in the master cylinder. If the fluid is low, top it up with the appropriate type of brake fluid (usually DOT 3, but always verify with the manufacturer’s specifications)
Brake Pads: Inspect the brake pads periodically for wear, corrosion, or contamination and replace them if necessary. Squealing or grinding noises are indicators that the pads may need replacement
Bleeding the Brakes: If you notice a spongy feel when braking, it may be due to air in the brake lines. Bleeding the brakes can remove these air bubbles and restore proper braking performance.
Saltwater Use: Always rinse brakes after launching in saltwater. Disc brakes (standard on Venture models) should be hosed down, while drum brakes may include flush kits for easier cleaning.