Testing Trailer Brakes with Break Away Cable
Trailer has weak brakes even with controller set to full power. Two trips back to dealer and dealer states brakes work fine and problem is with my vehicle (wiring). I do not believe them. The con...
Forum Discussion
brulaz wrote:
I routinely check that my brakes are getting current by pulling the breakaway pin and measuring the current (clamp-on ammeter). You just plug the pin back in then.
Not a problem. You should be able to pull the pin and try dragging the trailer. Or jacking it up and rotating the wheels.
Any possibility that your bearing seals are leaking? That will reduce braking action a lot. I routinely check my brake drum temperatures by touch after a quick stop from highway speeds (like at a reststop). Once I noticed one of the drums was much less hot than the other. And sure enough, there was grease all over inside the drum.
And yes, brake adjustment needs to be done every year, unless your brakes are self-adjusting (an easy and worthwhile upgrade).
How many amps should there be?
