Another brake problem
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URL: http://www.rpod-owners.com/forum_posts.asp?TID=11691
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Topic: Another brake problem
Posted By: lgblau
Subject: Another brake problem
Date Posted: 07 Jun 2018 at 5:50pm
Just had the wheel bearings repacked, and now I do not have TT brakes. Factory controller says everything is connected, and all lights work.I know the shop that I took it to gor the repack is going to say they did not cause this problem. Is there some simple test I can do myself. Thanks
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Leonard🌵
2017/179
2017 Ram 1500
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Replies:
Posted By: Leo B
Date Posted: 07 Jun 2018 at 6:23pm
Have them check the wires that go to the brake hubs.
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Leo & Melissa Bachand
2017 Ford F150
2021 Vista Cruiser 19 csk
Previously owned
2015 Rpod 179
2010 Rpod 171
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Posted By: mcarter
Date Posted: 07 Jun 2018 at 7:00pm
How do you know the brakes aren't working? The controller sends a signal to the brake magnets and that is how it knows the brakes are connected. It could be the brakes are adjusted to far from the drums, which is how they made removal of drums easy. When they put the drum back on they didn't adjust the shoes out. Therefor the shoes can't touch the drums. The controller would indicate normal, but brakes wouldn't work.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: lgblau
Date Posted: 07 Jun 2018 at 8:45pm
I thought about that. I asked the mechanic if he had to adjust the shoes to get the drum off, and he said no. I can hear the magnets clicking and I think that I felt a slight amount of braking when I set the controller as high as it went. (10). I have an appointment at the same shop tomorrow. I will ask that question again. I hope you are right. Thanks Mike, for the input.
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: mcarter
Date Posted: 08 Jun 2018 at 2:32am
The magnets clicking is a good sign the wiring is good. Let us know.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: lgblau
Date Posted: 08 Jun 2018 at 11:45am
Good Morning....Took the Pod back,and the shop took the wheels off. Could not find anything wrong, and said the magnets were working. Still no brakes. Got an appointment at a trailer (only) repair for Tuesday.
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: mcarter
Date Posted: 08 Jun 2018 at 2:56pm
Oh man, if the magnetics are working there is a brake control voltage. Interested in what trailer shop says but this is not a complicated system. When energized the brake shoes have to contact hub. If not the shoes need to be adjusted out and then the self adjusters will maintain.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: lgblau
Date Posted: 08 Jun 2018 at 3:50pm
Is there a certain amount of electricity required. Like a full 12 volts. The first shop mech said he could not tell if the magnet actually moved [sic].
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: mcarter
Date Posted: 08 Jun 2018 at 5:27pm
The amount of voltage applied is determined by the gain of the brake controller. At the maximum setting it should be close to the 12V supply. Most wiring is standard 12V in on black wire , brake voltage out on blue wire. Now I'm wondering how mech checked. Did he use brake controller or did he use jumper and apply 12V to blue wire at the 7 position on trailer 7 pin. Here's why I'm asking the brake controller is proportional, it's looking for movement, not a stationary trailer, so using the brake controller on a stationary trailer doesn't test right. So your trailer guy should check the controller wiring, RED wire, BLACK wire and Blue wire, all good - move back. Then I would use 12V right on trailer brake line while watching magnets, they will not move far, just enough to apply contact to hub. They make a caliper gauge for drum brakes that measures the diameter of hub on outside and correlates that to what the inside diameter of brakes shoes are to ensure the shoes are close to the hub diameter. Every drum brake guy knows that:) Sorry for lengthy reply but not rocket science. Good luck with a trailer guy.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: GlueGuy
Date Posted: 08 Jun 2018 at 5:38pm
Since this happened after the wheel bearings were packed, I'm thinking something was not re-assembled correctly. I would, for sure, check that 12V applied to each of the brakes engages the drum and also prevents it from turning. If that is not the case, then your task is to figure out what got missed on re-assembly.
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bp
2017 R-Pod 179 Hood River
2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost
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Posted By: mcarter
Date Posted: 08 Jun 2018 at 5:56pm
Igblau could do that if he wants on one wheel. Pull the tire and wheel on one side. Use a 1/4 spade jumper with a fuse. Jump from the 11 to 7 positions on the 7 pin as you look at it, with the alignment lug on top (12) position. The brake should push the shoes out to contact the hub. The hub should be hard or impossible to turn by hand. If not the shoes are not contacting the hub.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: mcarter
Date Posted: 08 Jun 2018 at 6:15pm
Just so we are on same page. When the hub is pulled and bearings replaced the brakes stay with the backing plate. There is no reason to mess with the brakes. The bearings, races and seals are all in the hub. The only reason to be on the backside of the backing plate would be to release the star adjust to let hub off easier, that's it. Nothing in relation to brake to assemble wrong, just the hub and bearing components and you can jack that up but brake still works.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: GlueGuy
Date Posted: 08 Jun 2018 at 8:03pm
Originally posted by mcarter
Just so we are on same page. When the hub is pulled and bearings replaced the brakes stay with the backing plate. There is no reason to mess with the brakes. The bearings, races and seals are all in the hub. The only reason to be on the backside of the backing plate would be to release the star adjust to let hub off easier, that's it. Nothing in relation to brake to assemble wrong, just the hub and bearing components and you can jack that up but brake still works. |
I know, but I was trying to search for a cause and effect. You shouldn't have to open up the brakes at all for a bearing re-pack, but something went wrong here.
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bp
2017 R-Pod 179 Hood River
2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost
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Posted By: lgblau
Date Posted: 08 Jun 2018 at 9:41pm
The brake guy simply took the wheel and drum off, and looked to see if the bearing pack was done. He said everything that he was supposed to do was done. What could I do. It was my word that the brakes were good before the repack. I have an appointment Tuesday at a shop thst builds trailers. Again, Thanks.
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: lgblau
Date Posted: 09 Jun 2018 at 9:34am
Thanks again for all the information, and I know you are all trying to help, but it’s still something that I can’t deal with. I will let you know what the trailer specialists do to fix it.
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: mcarter
Date Posted: 09 Jun 2018 at 3:39pm
It's cool Leonard, interested in what they find. Sometimes I talk to much, but I'm a brake guy:)
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: lgblau
Date Posted: 09 Jun 2018 at 4:51pm
That’s okay Mike. I am interested in the topic, but just don’t get it. My older brother was a master electrician (RIP).
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: lgblau
Date Posted: 12 Jun 2018 at 11:42am
Okay, Fixed. Actually it was quite simple. The brakes were out of adjustment. The original mech said he did not touch the shoes. NOT SO. Thanks again for the support.
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Leonard🌵
2017/179
2017 Ram 1500
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Posted By: mcarter
Date Posted: 12 Jun 2018 at 2:21pm
Zactly. He adjusted them in to allow drum removal and didn't adjust back. Guaranteed.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Posted By: lgblau
Date Posted: 12 Jun 2018 at 2:53pm
😎
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Leonard🌵
2017/179
2017 Ram 1500
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