E&J push'n wind wrote:
jmtandem wrote:
This is a good thread. This is also why I use a infrared temp thermometer to check hubs and brakes. All mine have been within 10 degrees of each other. I am a little surprised of the temps you consider normal as after towing more than an hour my temps are more like 115-120 degrees and that is with minimal braking and properly adjusted brakes.
Compared to your temps mine do look high. The only thing perhaps is the accuracy of your heat tracer or pyrometer, it could be reading low maybe or not. How do you know its accuracy? Ours is checked anually against a blackbody which is calibrated anually to the National Bureau of Standards for accuracy and certified for accuracy. Our thermal imager is accurate to within 2 degrees on either side of what the Blackbody reads.
restlesswind wrote:
I don't know about other brake controllers,but mine give me an amperage readout.There should be right at 3 amps current draw per magnet,with 12-13 amps when braking when all 4 are working.
For a while mine were only showing 9 amps when braking.With a little trouble shooting using a clamp-on amp meter I was able to find which magnet was not doing its share of work.Though the braking seemed to be fine.
There was a bad wire conection.I redid the connection and all is now well.
If I'm not mistaken, wouldn't the current draw depend on how hard you are braking? Mine shows current draw as well but it is never constant, it varies with brake input. How could you know based on that how much each magnet is drawing? Little input, little draw and again, not constant and more input, more current draw. Am I missing something?
I check for current draw right after hooking up.I apply full braking using the manual mode,then do the same using the brake pedal.I also check the reading at a stop sign,once in a while,especialy if the braking seems to feel "not quite right".
After towing this trailer over 70K miles,it's pretty easy to tell if the brakes feel OK or not.I also use the "ray gun" at just about every rest stop.
