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Thread: Magnetic brake issues
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03-15-2023, 09:19 PM #11
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The appropriate setting on the brake controller depends on the condition of the brakes.
I’d be suspecting your breakaway switch is engaging during towing.John & Kathy
2014 F250 Lariat FX4 6.2L SBCC
2014 Reflection 303RLS
SW Indiana
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03-15-2023, 09:52 PM #12
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03-15-2023, 10:30 PM #13
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The breakaway switch is the same as having the gain all the way up on the controller. It’s nearly impossible to lock the brakes on a heavy trailer.
The condition of the brakes indicates they are being applied excessively either through the application of power too frequently or at too high a level. An intermittent breakaway switch might accomplish this.
But I wouldn’t discount issues with the dealer.John & Kathy
2014 F250 Lariat FX4 6.2L SBCC
2014 Reflection 303RLS
SW Indiana
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03-16-2023, 05:43 AM #14
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Does your Solitude have the Curt ABS braking system installed? The new Solitude's were supposed to have the new ABS braking system installed since about last May timeframe. If it does, then yes there is a brake controller in the RV with sensors on each wheel. There may be something wrong with the ABS braking on the Solitude.
Here is a thread on the Curt ABS braking system https://www.mygrandrv.com/forum/show...-new-SolitudesLast edited by Steven@147; 03-16-2023 at 05:47 AM.
Steve & Tami Cass - Escapee's, FMCA Members, Texas Fulltimers Since July 2020
2019 Solitude 3350RL S-Class, 2018 Ram 3500 DRW, Laramie Longhorn, B&W Companion, Texas Class A Non-CDL Drivers License
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03-16-2023, 06:05 AM #15
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So do you think your brakes were burnished correctly by the contract delivery driver from the factory to the dealership?
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03-16-2023, 06:23 AM #16
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My invoice from last August:
Part# Description Qty
KIT D50 7000 DEXTER 9/16" 865 4.00
BAS 12EFSA-LH 12"x2" LH ELECTRIC SELF ADJ 2.00
BAS 12EFSA-RH 12"X2"RH ELECTRIC SELF ADJ 2.00
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03-16-2023, 10:59 AM #17
Yes, I guess you are correct. I had my break away switch activated accidentally at low speed once and it felt like a complete lock up. Considering the constant drag on the tow vehicle equal to the controller's gain cranked all the way up, it seems the OP would have noticed and the hubs would have gotten excessively hot, maybe to the smoking point.
2020 Reflection 273MK
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03-16-2023, 11:12 AM #18
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Brake drums or brake pads are not generally burnished by the manufacturer. This means it is up to the installer or driver to burnish them appropriately. This is rarely done. In that video you can see the temperatures required to adequately burnish the brakes and these temps are not going to get reached with typical daily driving assuming everything is set correctly. But over time they get worn in. The purpose of intentional burnishing is to make them run better, longer, and more quietly (squeaking and such). All that said, not burnishing them is very unlikely to be the cause of the problems here. There appears to be something else going on to cause the excessive wear and damage is described in this thread.
Chad
2023 23LDE 965W Solar, Victron Multiplus, Solar Controllers, Cerbo GX, 4x280AH DIY Lithium Batteries, SeeLevel Tank Monitoring, Shock Absorbers (Replaced 2022 22MLE)
2022 F350 6.7L Superduty, Carbonized Gray, Ultimate Lariat Pkg, 4WD, Crew Cab, 160" Wheelbase, 3.55EL Rear End, 3566# Payload
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03-22-2023, 11:36 AM #19
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So what do you think caused your brakes to fail after 2k
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03-22-2023, 06:19 PM #20
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I've had numerous problems with my Dexter 12" brakes since swapping out my axles in 2020, and moving from 10" brakes to 12" Dexter brakes. You're problem certainly sounds like the brakes are dragging all the time and overheating. That happened to me a couple years ago. I think the problem is I had manually adjusted them a little too tight. I took photos and emailed them to Dexter and they sent me all new brake assemblies, no charge. However, I continued to have braking problems. I just couldn't get the trailer to stop like it did when I had 10" brakes.
After 2 years of troubleshooting, I finally discovered the brake problem was with my 12" Dexter brake magnets. I had a LOT of trouble getting my trailer to stop. After a ton of research I discovered that Dexter, 12" brake magnets are INTENTIONALLY about 1/2 the size of other manufacturer brake magnets. Therefore, way less stopping ability. They are designed to slow your trailer down, NOT STOP IT. If you look closely on the Dexter web site you will find this postings:
Dexter says their 12" brakes: "When loaded to capacity, you may not be able to lock your brakes as electric brakes are designed to slow the trailer at a controlled rate, and not designed to lock up the wheels on a fully loaded trailer. Our brakes are designed to meet all applicable safety standards."
The Dexter story is, years ago people kept complaining to Dexter that the 12" brakes would lock up and create flat spots on their tires. Dexter got tired of having the same argument with trailer owners so they made the magnets smaller so they won't lock up the brakes.
I ordered a different brand brake assembly on Amazon and the moment I opened the box I could see the difference, the magnets are almost twice the size! You still have to burnish in the new brakes according to the video you mentioned. I installed these new brakes in Oct 2022 and after 4,000 miles of driving they are starting to feel much better. I tried measuring the voltage, current, and even tried using a compass to measure the magnetic field of the magnets. My first suggestion is to get rid of the Dexter 12" brakes.
I ordered these on amazon for $237: "Southwest Wheel 2-Pack 12" X 2" TruRyde Self-Adjusting Electric Brakes with Hardware (2 Right Hand + 2 Left Hand) "
Best of luck,
DustinDustin and Doris
2018 2600RB
2016 Tundra: 5.7L with towing package.
Reupholstered RV Furniture
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