In preparation for the 2016 Roslyn Rally I wanted to check the condition of the bearings and electric brakes. When I rewired the trailer to tow vehicle plug I had checked the continuity of the wiring harness going back to the brakes. So I knew that was in good condition.
I pulled the wheels and the drums to take a look. I started on the driver side. The outer bearing looked good. The grease looked tired. The electric brake assembly was rusty, worn out. The lower spring was broken. I had planned on getting new brake assemblies anyways. They are inexpensive and you cannot find individual parts for these brakes.
Here is a side by side of the new and old:
I then treated the axle and leaf springs, which only had surface rust, with several coats of Corroseal:
I pulled the rear bearing out of the drum and it looked good. Cleaned and inspected the spindle which also was in good shape, no wear or rust.
The drums were also in good condition, very little wear on them. I scuffed the inside of the drum with 80 grit sandpaper. Next I cleaned the bearing races and the drum with brake cleaner. Here is a before and after photo:
I then reinstalled there inner bearing with new seals. I took the old seal to my local auto store and they were able to match it to a current one. Inexpensive and easy.
New brake assembly:
Pretty!
Drums get anti rust treatment and back on they go:
After the driver side was done headed over to the curb side and repeated the process.
These new brakes are self adjusting which is a nice feature to have. Only cost about $15 more per assembly so well worth it. I also put new grease covers on, the old ones were very rusted. Reconnected the electrical leads and weatherproofed them. Then tested the brakes by hooking up the tow vehicle, plugging in the brake controller and stepping on the brake pedal. If the magnet on the trailer electric brakes magnetizes then you know they are working properly.
With the axle inspected and treated, new brakes, and repacked bearings, we are ready to roll!