I ran out of room in the main description, so I'm putting some key points here for some of the comments I receive. Keep in mind that the problem is intermittent. If you check the magnets with a tester (Ohm meter, volt meter, amp meter, test light, load tester....) it might show everything is fine, right now. But as soon as you hit a bump, one or more magnets might lose connection. On the next bump, it may change again. A lot of people bring up the idea of replacing the drums with disc brakes. Both disc and drum brakes have their pros and cons. Disc brakes are great in most respects for most people. But they may not be good for certain situations. I, and many others tend to spend 1-6 months in 1 location before moving. Frequently, I'm near the ocean or gulf. In a humid and salty environment, disc brake rotors rust very quickly. The parts inside a drum are somewhat protected from the humidity that attacks metal each day in these types of environments. Once the disc surface has pitting and scale, the disc brakes don't work as well. The area of the disc under the pads usually doesn't rust. So the brakes don't work well until that nice part of the rotor comes around. Then they work. This can cause the brake to lock during emergency stops. Florida snowbirds would be a good example of folks that may have more problems with disc than drums. Also keep in mind that disc brakes convert electric energy into hydraulic energy. If the electric part fails the brakes won't work. If the hydraulic part fails/leaks, the brakes won't work. For people that use their trailer frequently and are not in a salt air environment, disc are probably the better way to go (if you have the money). If you want to read the old comments, they are in the old version- electric brakes: ruclips.net/video/UPhhT_383-4/видео.html
Fantastic video that outlines an obviously very serious design flaw. Thank you for bringing this to our attention, hopefully something can be done to resolve this potentially deadly issue.
Sometimes the brake wires are fed through the axel to the other set of brake magnets and there is no support in axel for the wires so they can rub through insulation and cause intermittent shorts in brakes. Thanks for taking the time to show what is inside the magnet. Another issue some brands of Nev-r-adjust just keep getting tighter and tighter and fail.
I saw a video about the wire in the tube issue. I haven't ran into that problem yet. I bet a combination of rust in the tube and an out of balance tire can chew right thru the insulation. I had the nev-r-lube axles. Should have been called "can't-lube". Also can't turn the drum, cuz you can't find anyone that knows how to do it for that design.
Not really a fix but you could measure the current to each brake with a current clamp with the brakes applied before a trip. Or make a 'device' using hall effect current sensors to measure each wheel and indicate to the driver a failed brake. That could even show uneven braking with the current measured by each wheel.
I've measured the current to my electric brake solenoids using a clamp on meter and they were all 1/4 of the total current since the solenoids are in parallel. But that doesn't guarantee even braking . . . .
Interesting! Like you, I'm surprised they would use a push on connection but I understand why they do it. It simplifies and cuts cost in the manufacturing process. I also would feel a lot better knowing the wires were soldered together! I would think that if they're pouring in or applying a liquid potting material over the connections that after it sets up (hardens) that it should prevent any loosening of the connection, but maybe with age and the extreme heat generated during braking that this material could be breaking down over time, allowing the connection to fail. I'll bet if you contacted the "Major Axle Manufacturer " and spoke with one of their customer service technicians they'd be glad to explain their reasoning for using the push on connectors. It's possible they may have since changed their process or they may just say it's a super rare incidence that a connection fails ?? You could also contact several local RV dealers and talk to their repair guys and see if they've seen these issues. I'll bet they'll just say "Yeah, we see an occasional brake magnet fail with age and we'll put on a new one. They're not very expensive". I'm interested in what you find out.
I was at princess auto and they are selling trailer tongues that bind without swiveling enough to drive into a small hill i was shocked even a small change in angle can cause it to snap off i purchase it and was baffled by stupidity felt like going back to store and going crazy loading all them in cart and taking it to customer service and say who the fuck is responsible for this
The gov has most of us so heavily taxed that we can't afford to pay for quality. So corps have to compete heavily for customers. Then you have the executives at the top skimming off the profits. They have to make things as cheap as they can to compensate. Then try to make products so they don't last or can't be fixed or can't get parts. Then they make more money because you have to buy another one sooner than you anticipated and the old one goes in the landfill This is the way they make RVs, cars, phones, computers, appliances..... Between the gov and corporations (the same thing these days) they have created a crap world.
I need brakes but i find most have an identity crisis and dont even provide basic info required for engineering a braking sytem thats better than nothing, its like the world dosnt have enough ram, its incomplete, not gunna order.... is the point to be confused and just give up and hire a professional thats not professional and get scammed
Here's a "fix": Some down and out ambulance chaser researches all collisions involving trailers with such electric brakes. He then sues (on behalf of whoever lost life or money) against the manufacturers -- requiring the manufacturer to prove his brakes weren't the cause. Insurance pays the award and damages. Soon insurance companies refuse to insure such vehicles. Should be a short path from there to properly made magnets.
@@fixpro256 Never underestimate the power of an unemployed ambulance chaser! Besides which, any evidence of suppressing could lead to humongous punitive damages. We just need to get the word out to hungry attorneys.
I ran out of room in the main description, so I'm putting some key points here for some of the comments I receive.
Keep in mind that the problem is intermittent. If you check the magnets with a tester (Ohm meter, volt meter, amp meter, test light, load tester....) it might show everything is fine, right now. But as soon as you hit a bump, one or more magnets might lose connection. On the next bump, it may change again.
A lot of people bring up the idea of replacing the drums with disc brakes. Both disc and drum brakes have their pros and cons.
Disc brakes are great in most respects for most people. But they may not be good for certain situations. I, and many others tend to spend 1-6 months in 1 location before moving. Frequently, I'm near the ocean or gulf. In a humid and salty environment, disc brake rotors rust very quickly. The parts inside a drum are somewhat protected from the humidity that attacks metal each day in these types of environments. Once the disc surface has pitting and scale, the disc brakes don't work as well. The area of the disc under the pads usually doesn't rust. So the brakes don't work well until that nice part of the rotor comes around. Then they work. This can cause the brake to lock during emergency stops. Florida snowbirds would be a good example of folks that may have more problems with disc than drums.
Also keep in mind that disc brakes convert electric energy into hydraulic energy. If the electric part fails the brakes won't work. If the hydraulic part fails/leaks, the brakes won't work.
For people that use their trailer frequently and are not in a salt air environment, disc are probably the better way to go (if you have the money).
If you want to read the old comments, they are in the old version- electric brakes: ruclips.net/video/UPhhT_383-4/видео.html
Fantastic video that outlines an obviously very serious design flaw. Thank you for bringing this to our attention, hopefully something can be done to resolve this potentially deadly issue.
All of your points are valid. One other factor that I would mention it heat.
Sometimes the brake wires are fed through the axel to the other set of brake magnets and there is no support in axel for the wires so they can rub through insulation and cause intermittent shorts in brakes. Thanks for taking the time to show what is inside the magnet. Another issue some brands of Nev-r-adjust just keep getting tighter and tighter and fail.
I saw a video about the wire in the tube issue. I haven't ran into that problem yet. I bet a combination of rust in the tube and an out of balance tire can chew right thru the insulation. I had the nev-r-lube axles. Should have been called "can't-lube". Also can't turn the drum, cuz you can't find anyone that knows how to do it for that design.
Not really a fix but you could measure the current to each brake with a current clamp with the brakes applied before a trip. Or make a 'device' using hall effect current sensors to measure each wheel and indicate to the driver a failed brake. That could even show uneven braking with the current measured by each wheel.
I've measured the current to my electric brake solenoids using a clamp on meter and they were all 1/4 of the total current since the solenoids are in parallel. But that doesn't guarantee even braking . . . .
Interesting!
Like you, I'm surprised they would use a push on connection but I understand why they do it.
It simplifies and cuts cost in the manufacturing process.
I also would feel a lot better knowing the wires were soldered together!
I would think that if they're pouring in or applying a liquid potting material over the connections that after it sets up (hardens) that it should prevent any loosening of the connection, but maybe with age and the extreme heat generated during braking that this material could be breaking down over time, allowing the connection to fail.
I'll bet if you contacted the "Major Axle Manufacturer " and spoke with one of their customer service technicians they'd be glad to explain their reasoning for using the push on connectors.
It's possible they may have since changed their process or they may just say it's a super rare incidence that a connection fails ??
You could also contact several local RV dealers and talk to their repair guys and see if they've seen these issues. I'll bet they'll just say "Yeah, we see an occasional brake magnet fail with age and we'll put on a new one. They're not very expensive".
I'm interested in what you find out.
I was at princess auto and they are selling trailer tongues that bind without swiveling enough to drive into a small hill i was shocked even a small change in angle can cause it to snap off i purchase it and was baffled by stupidity felt like going back to store and going crazy loading all them in cart and taking it to customer service and say who the fuck is responsible for this
The gov has most of us so heavily taxed that we can't afford to pay for quality. So corps have to compete heavily for customers. Then you have the executives at the top skimming off the profits. They have to make things as cheap as they can to compensate. Then try to make products so they don't last or can't be fixed or can't get parts. Then they make more money because you have to buy another one sooner than you anticipated and the old one goes in the landfill This is the way they make RVs, cars, phones, computers, appliances..... Between the gov and corporations (the same thing these days) they have created a crap world.
I need brakes but i find most have an identity crisis and dont even provide basic info required for engineering a braking sytem thats better than nothing, its like the world dosnt have enough ram, its incomplete, not gunna order.... is the point to be confused and just give up and hire a professional thats not professional and get scammed
Here's a "fix": Some down and out ambulance chaser researches all collisions involving trailers with such electric brakes. He then sues (on behalf of whoever lost life or money) against the manufacturers -- requiring the manufacturer to prove his brakes weren't the cause. Insurance pays the award and damages. Soon insurance companies refuse to insure such vehicles. Should be a short path from there to properly made magnets.
Good idea. I'm afraid the manufacturers may be so big now they can afford to pay off anyone to keep that from happening. But we can always hope.
@@fixpro256 Never underestimate the power of an unemployed ambulance chaser! Besides which, any evidence of suppressing could lead to humongous punitive damages. We just need to get the word out to hungry attorneys.
@@freemab222 True. Maybe I need to look at my "key words" to make sure they find the video easier.