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rwbradley's avatar
rwbradley
Explorer
Apr 25, 2016

Brake question

Just a little background, my current trailer is a 3 year old HTT. I bought it at 1 year old in near showroom condition. It was apparently seasonally parked so very little mileage from the previous owner. It is a dual axel with Dexter Ez Lube hubs with electric drum brakes.
I finally got around to doing the bearings and brake inspection etc... a little late I know. Everything was uneventful, the bearings and the brakes were in good condition.
The one thing that I find odd was the rear driver side brake. What I found odd was that the brake assembly looked to be in new condition, like right out of the box new, where as the rest had lots of brake dust and I could feel the drag when I turned the hubs. This one did not drag, so I assume the shoes were never ever making contact with the hub, but it only took about 4 notches until I could feel/hear it drag.
What I wonder is, is 4 notches out really enough that the shoes would never ever touch the hub even in an emergency stop or should I be checking the electrical to make sure it is working at all?

13 Replies

  • Both great ideas...
    does the break away switch get power from the house battery as well or do I need to plug the 7 pin connector into the TV?
  • Jack up that wheel, pull the break-away pin, and try to spin the wheel. It should move maybe 1/8-1/4 turn then lock up solid. If it doesn't lock up look for a broken wire to the magnet (favorite spot is where the wire goes into the axle.) Or you may have an open magnet.
  • Check that magnet is actually getting voltage.

    Hold a compass next to that wheel down low where magnet is located
    Then have someone pull the Emergency Breakaway Switch Pin
    If magnet is being energized the compass needle will deflect towards magnet

    (Pulling Pin allows FULL Battery Voltage to be applied and Checks that Emergency Breakaway Switch works-----don't leave it out longer than necessary to test)

    Bet that wire connectors for that brake assembly magnet are loose/corroded or wires are chafted and magnet has not been getting voltage

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