Hopefully someone here can help me out. My double axle trailer has mechanical brakes, replaced last year after I learned they were not functional. Now when I back up with the boat on the trailer, the brakes lock up. The trailer has a lever on the tongue area that says "brakes off-towable" when in the rear position, and the front position is no longer legible. This lever is attached to the break away wire. I have attached a pic in the hopes that someone here has seen my type of trailer before and can offer some help. Fist time posting a pic, so I likely messed that part up!