Troubleshooting One Set of Brakes Running Hot on Tandem Axle Trailer

Updated 02/08/2022 | Published 02/07/2022

Products Featured in This Question

Computer Safe Logistic Probe

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Replacement Spring Kit for 10" and 12" Manual-Adjust Electric Trailer Brake Assemblies

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$13.84

etrailer Electric Trailer Brakes - 7" - Left/Right Hand Assemblies - 2,000 lbs

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$95.79

etrailer Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3,500 lbs

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etrailer Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 5,200 lbs to 7,000 lbs

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Question:

the two rear hubs tandem trailer w/brakes are ALWAYS warm/hot to the touch front hubs are cool to the touch. This is true with the controller connected or not. I have rechecked bearings, adjusted linings and so forth. I think the magnets are dragging. Are there heavier stand-off springs if thats the correct terminology for the magnets? I have previously installed new magnets and springs from your warehouse. Im getting ready for a long-haul and need to correct the hear issue. Many tks for any info,

asked by: Robert S

Expert Reply:

I recommend using a circuit tester like part # PTW2991 to check and see if the wiring to your trailer brakes has constant power or not as this could be a result of 12V power jumping over to the brake circuit for that rear axle.

If those look okay then you need to double check the adjustment of your trailer brakes. You want them to slightly drag when you freely spin the wheel. If the wheel is locked or drags a lot when you spin the wheel then that means your brakes are still too aggressive.

If none of that works then I recommend replacing your brake assemblies completely since replacing the magnets hasn't done anything on your end. If you have 7" brakes use part # AKEBRK-2, for 10" brakes use part # AKEBRK-35, and for 12" brakes use part # AKEBRK-6.

As far as replacement springs go for the brake pads we do have those, like the kit # AKBRKR-SP for 10" and 12" manual adjust brakes, but the springs are brake-specific so they would be direct replacements and no more powerful than your current ones.