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Old 08-12-2017, 11:10 AM   #1
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Default Brake magnets ?

While crawling around under my new toy I noticed a broken wire behind the backing plate of one of the wheels. I know that it goes to a magnet on the inside and it needs to be replaced. I have never repaired electric brakes and have some drum brake experience.

Can I replace just one magnet or do they get replaced in pairs? Are they one size fits all? Are there junk parts or brands to avoid?

Please advise.
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Old 08-12-2017, 11:17 AM   #2
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Here's a video on magnet replacement.

http://www.etrailer.com/tv-demo_trai...placement.aspx

They're not one size fits all, they go by hub diameter and axle weight rating.

Good luck.

Replace both magnets on same axle. Probably wise to replace all 4 if you have 2 axles.
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Old 08-12-2017, 02:46 PM   #3
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Super video! Thanks, I can do that!
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Old 08-12-2017, 05:26 PM   #4
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Personally, I'd advise getting the complete assembly that includes new drums. This simplifies installation and they are not all that expensive. I get mine from E-Trailer.

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Old 08-15-2017, 07:50 AM   #5
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What Jack said.

Its almost easier to replace the hub than to repair - you have to disassemble down to the hub anyway, and replacement parts can easily have a new design thats ever so slightly different-just enough so it won't fit (mount bar is 1/16" wider, for example).

New hub is just four more bolts and two wire crimps (crimps you have to do with a repair anyway).

I once converted a surge brake trailer to electric for lower cost and less time than repairing the hydraulics. Thats how easy electrics are.
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