I've been going through a similiar problem on my 20' 14k Gooseneck. I had little braking action just like you're seeing. I was beating my head against the wall. I checked my connections, cleaned gounds, even replaced the Cable from the truck to the Junction box that my trailer has. I still could only get around 10.5 volts to the junction box, and I know all is well with the truck, as I can lock up my friend's brakes, just not the brakes on my own trailer. I opened up the brakes, thought the magnets may be bad, didn't find anything wrong with the magnets or the mechanism.
What helped my trailer the most was making 5 or 6 20 mile runs hauling machinery home from the Lenawee County Fair for myself and a freind. After that, I could lock the brakes up and drag them on the gravel in my driveway, at least. I've decided to leave them alone at that. When they don't at least function that well I'll probably be forced to spend the big bucks and start from scratch with wiring and brakes.
I should probably add that My trailer sits most of the time. I don't make many trips, mostly local stuff, with my own couple tractors. No regular long trips hauling tractors or hay, and I'm not commercial. My longest trip will probably be going up to the Mackinac Bridge with 2 tractors in a few weeks. About 300 miles. Honestly, I'm more concerned about melting down my old 6.5 than I am stopping the trailer.
My trailer is new to me this spring. It was pulled commercially by the previous two owners, and then sat for a year or two I believe before I bought it. Mine is about 10 years old. Mine just seemed to need to be used. I'm still learning, this is my first expirence with owning my own trailer with electric brakes. Hope my expirence this year helps you. -Andy
This post was edited by FC Andy at 07:00:43 08/25/12 3 times.
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