I got to do some work today on the trailer.
I greased all 4 sets of axle bearings with the Dexter EZ Lube process. Old grease looked fine, less than a year old.
I did a drag test on the brakes - where you lock the trailer brakes manually at a full stop on gravel. Then pull the trailer a couple feet. Surprise - only the front brakes lock up. The rear brakes do not lock up.
I adjusted the brakes according to Dexter instructions. No change, rear axle still won't lock up.
I did some voltage checks while holding the brake controller to manual "full on":
- 12 V at the back of the TV when measured at the 7-pin. (trailer unplugged)
- with trailer plugged in, something like 10 volts at the front brake and somewhat lower voltage at the rear brake.
I went for a test drive and the front brakes are running much hotter than the rear brakes.
So it looks like the wiring from the trailer 7-pin cable to the trailer brakes is at fault.
I need to check the connectors and isolate the voltage drop. Hopefully just a bad connection somewhere.
Ed
