Re-Wiring the brakes.
My 35' ~10,000 lb GVWR trailer brakes were wired with 14 gauge wire and very poor crimps. All the crimps on that I've seen so far are pretty bad... I'm going to redo it with a quality crimp tool ...
Forum Discussion
mrekim wrote:Gdetrailer wrote:
The trailer side however per the axle manufacturers ALL the ground returns for the brakes MUST be terminated at the FRONT of said trailer. In other words the grounds must not be terminated at the axles to the frame.
The diagram I saw showed a ground at the frame at the front (battery grounded to this) and then another ground at the frame at the rear at the end of the brake cable ground run. So both the frame and the cable end up as ground conductors. Is this a good practice, or is it frowned upon?
It seems like it could only improve the return and therefore decrease any voltage drop.
Gdetrailer: I see you answered above - while I was typing this....
Bad practice, grounding in two places results in ground loops on the wire.
Per Dexters "faqs" ..
HERE
BRAKES - Do Dexter brake magnet wires have polarity?
The wires on a Dexter magnet do not have polarity. It works like a common resistor. One wire will connect to power and the other to a ground. It is Dexter's recommendation that a common ground be run from the trailer plug to the brake magnets. Do not ground each brake individually to the trailer frame or structure. Also note that the brakes should be wired in parallel, not in series.
