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RVing message boards => Towing and towables => Topic started by: TNBigfoot on July 26, 2017, 06:12:48 PM

Title: Help on brake problem
Post by: TNBigfoot on July 26, 2017, 06:12:48 PM
Hope someone can help me with where to go next.  Purchased a Thor 20' tow behind 3 months ago.
Pulling the camper the last time, I noticed the tire rims were very hot to the touch.  I pulled all the tires and drums, checked and clean the backplate and hub, and even re packed the wheel bearings.  After replacement, I adjusted the star wheel to set the brakes.  I still have one hub that gets very hot.  When I jack the trailer, the wheel spins freely.  When I hook to the truck, the magnet engages and everything works as it should.  Where do I go next to troubleshoot the problem?  After adjustment to the "tight"position, I back off until the tire rotates freely and I hear little if any pad engagement on the drum.  Am I doing this correctly?  Thanks for your help?
Title: Re: Help on brake problem
Post by: RVfixer on July 26, 2017, 10:34:19 PM
If the axle nut is too tight it will cause the bearing to overheat and heat up the wheel.  The axle nut should be snugged and then backed off to the next hole back.  Often the nut can be moved a little back and forth with your fingers if done correctly and that it OK.  Too tight is not OK.

I assume that you cleaned the bearings, both inner and outer and inspected them for corrosion, pitting, bent or damaged cage, heat discolored and smooth rotation.
Title: Re: Help on brake problem
Post by: SkateBoard on July 26, 2017, 10:36:53 PM
Does the trailer have electric brakes? One side could be malfunctioning.
Title: Re: Help on brake problem
Post by: Rene T on July 27, 2017, 07:44:10 AM
Does the trailer have electric brakes? One side could be malfunctioning.

They said: "the magnet engages and everything works as it should".
I would also look at the nut as previous posted.
Title: Re: Help on brake problem
Post by: tracyimc on August 12, 2017, 07:27:44 PM
Having this problem is bad. Where are you camping? You can contact the maintenance center, such as Cottman blog, they operate very extensively.