Brake Performance After Changing Brake Assemblies

When I replaced the magnets on my trailer I had to burnish the brake magnets. It took many miles of activating the manual control on the brake controller. After about an hour and many trailer brake only stops the trailer was stopping better than it ever did (reason for replacing the magnets). You will have to aggressively stop the trailer. Set the controller to max and use the lever only to stop both Rick and trailer from about 50mph. Give some time in between to let the magnets cool.