CONVERT FROM ELECTRIC TO HYDRAULIC DRUM BRAKES ON 7K AXLES?

ROTFLMFAO! So you're wanting to convert from electric to electric/hydraulic, and you point to a thread where they converted from air/hydraulic to air as your justification? Did you not read the #### thread? The reason they did the alteration was because of the unsafe nature of hydraulic brakes (loose 100% of the brakes with ANY problems that arise)...and that's what you're wanting to install instead of just fixing your electric brakes? This thread has got to be a joke.

 

Nobody is laughing at me. Why? Because I've never seen the trailer in question (but you have), and I haven't claimed to be a 20 year ASE certified mechanic (but again, you have). Now, after providing no details that would provide even the slightest clue short of a broad list of possibilities, you (the stumped master mechanic) find it amusing I haven't solved your problem for you? The only one being laughed at is you. Hate to break it to you, but based upon this thread you lack any sort of "high technical knowledge", especially where trailer brakes are concerned.

 

You came in here asking a question looking for a specific answer, and you aren't going to get it. Why? Because it isn't a worthwhile thing to do and everybody else (besides you) seems to get that. And yes, I (unlike you) understood the point of that thread just fine. Hydraulic brakes (which you want to go to) are problematic because if there is a problem with ANY of the lines or at ANY of the wheel ends, YOU HAVE NO BRAKES....which is a wholly unacceptable condition to find yourself in descending a mountain. The conversion from air/hydraulic to air is relatively simple and easily done...the total opposite of what you are wanting to do.

Fix the problem with your electric brakes or trade in the trailer on one that works to your satisfaction. I'm done with you.

 

in the RV world they upgrade from electric drum to hydraulic disc using one of the many kits available. Below i linked a kit from Kodiak, but there are options available.
https://www.kodiaktrailer.com/

 

He probably has to issues with his trailer brakes, they just aren't designed to stop as much weight as they all claim. Electric brakes are not for commercial purposes no matter how many are on the road. Trailer brakes have to be able to hold the combination still while loaded on commercial vehicles. He's at least trying to do the correct thing.

All he was saying about locking his trailer brakes when empty was that they were functioning, nothing else.

Reading Comprehension in 2019.

 

I have done an electric over hydraulic conversion on two car trailers.

To answer your question, they still locked up with a full load. I had to replace the controller with a better one and adjust it up till I had good braking. If you are doing 100%, then maybe you need to replace the controller too.