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rbpru's avatar
rbpru
Explorer II
Apr 30, 2016

check and double check

In the last 2 1/2 years, the DW and I have towed our used Dutchmen over 21,000 miles.

Coming home from our most recent trip of two months and 8500 miles, I had the feeling that the braking was not as it should be. Since we had driven the Rockies and the desert I did not think there could be too much wrong. Well when I got home,I discovered that 3 of the 4 TT brakes did not work. :E

Further investigation I found three broken wires and a bad magnet.

It is hard to believe this all happened on this trip but I will not belabor the point. Prior to leaving I had the bearings packed the technician said the brakes "looked good". Well they may have looked good with plenty of shoe left there is no way to know if they were working or not.

I needed the TT for another trip so I did the clean up, repaired and adjustment myself. It had been a long long time since I worked on drum brakes. ;)

I intend to replace the entire brake assembly and drums before another major trip. It will be far easier.


Now after pulling and cleaning the drums and magnets plus rewiring, I have questions.

* Is it normal for the magnets and drums to be deeply scored after 20,000 + miles?
* How often do you have to tighten the drum brakes. I have heard every 3000 and others say 5000 miles.

The point learned is check and double check the service done on your TT or do it yourself if you can. Your assumption of what was done may be wrong.

5 Replies

  • One of the green wires into the brake drum was severed. One of the two wires running through the axle was open. One of the wire into a three way connector had pulled out.

    I have never been able to lock the TT wheels with no matter how high I set the controller.
  • rbpru wrote:
    Further investigation I found three broken wires and a bad magnet.

    Curious where the wires were broken? Severed wires? If so, where? Or bad splice? Have read reports of owners finding substandard wiring to the brakes in the past and am not surprised to hear this. I eventually want to redo and upgrade the wiring from brake drums right up to the front of our TT.

    I just re-wired all the wiring in the A-frame area which came about because of a lot of corrosion on the 2 mini circuit breakers there. While doing this, the positive wire from the battery fell clear out of the ring terminal at the circuit breaker! The crimp connection was poorly done (partially compressed) and in addition was corroded. What this means is that ALL 12 volts to the TT could have been lost, and most importantly the braking system. As well, splices from the 7-pin harness were not done well and some wires were also tarnished and the main battery ground to the frame was badly corroded. Our TT got delivered in the winter (Indiana to west coast) when there was lots of salt on the roads which would have contributed. I get pretty choked up when I find bad workmanship and design like this. Probably doesn't meet NEC requirements but who do you complain to??

    If you value your braking system, it can't hurt to check the related wiring in the A-frame area too.


    Lynnmor wrote:
    Remember when Spadoctor said that they should last at least 30,000 miles? How's that working?

    :)
  • Remember when Spadoctor said that they should last at least 30,000 miles? How's that working?

    This stuff is basically junk, and you have to babysit the bearings and brakes if you want them to work.

    I'm sure you have read my tale before, but now that you have a different perspective, here it is again. Brakes, etc.
  • We only went 5 or 6 thousand miles a year and I would check and adj if needed about every 4 years. The brakes will last a lot longer if you leave the wires disconnected.
  • Yes, the drums and magnets get pretty scored up, basically metal to metal contact. On my last two campers the auto adjusters never work very well. I checked/adjusted mine once a year but I'm just a weekend camper in flat Florida.