My Surge Brakes Are Activating When I Back Up My Trailer - What Can I Do?
Question:
Im having trouble backing up my boat trailer because the surge brakes wont release. Other trucks can hook up to it without a problem, but I cant seem to get it to work. Weve already changed the plug in the back of the truck, and my lights and turn signals are working fine, so its not a ground issue. Im really confused and could use some help figuring out whats going on!
asked by: Gregg G
Expert Reply:
Hello Gregg, I think I can help shed some light on what is going on. Basically, there are two ways to stop surge brakes from actuating when backing up the trailer.
The first and most popular way to do this is to use a surge brake actuator with a reverse lockout. For example, the Dexter DX7.5L A-60 Brake Actuator# DX56FR has an electric lockout. The solenoid is wired to the reverse light circuit on the tow vehicle. This way when the vehicle is put in reverse, the actuator will be locked out and the brakes will not activate. Not all actuators have an electric lockout though, some have a manual lockout and some do not have a lockout at all. It sounds like your actuator may not have a lockout feature, which would explain what is going on.
I am not sure exactly what model of actuator you have, but it may be possible to add a Reverse Lockout Solenoid like part # T4748800. This solenoid is not universal though, so please do let me know the model number from your actuator so I can confirm fitment.
The other way to stop the brakes from actuating is to use free backing brake assemblies. For an example, the Hydraulic Brake Assemblies # AKFBBRK-35-D are free backing. Meaning the brake shoes will not engage in reverse. Free backing brakes do not require a lockout feature on the actuator. The # AKFBBRK-35-D brakes are intended for a 3,500 lb rated axle. If you can let me know the weight capacity of your axle, I can make sure you get the right size brakes.
Feel free to post any additional info or any questions in the comments below.
Products Referenced in This Question
Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs
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Dexter DX7.5L A-60 Brake Actuator w Electric Lockout - Bolt On - Disc - 2" Ball - Zinc - 7.5K
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Product Page this Question was Asked From
Replacement Shock Absorber for Dexter Model 60 Brake Actuators
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Gregg G.
4/18/2024
This is a brand new trailer for a 22 ft tritoon. The brakes work fine when other people back our boat up, Just not ours. I have a 3/4 ton diesel and I believe it is something on my truck that I’m missing.