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Old 11-30-2014, 03:07 PM   #1
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Disc brake discussion

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Originally Posted by BoldAdventure View Post
Why is the sky blue?

Now to off to research weather or not I really want to do that disc brake conversion.

BoldAdventure,

Suggest a new thread for that question, but here's a idea to start it off. Have you driven a rig with hydraulic brakes just to see what they feel like? I think if you could compare very similar rigs with and without that could be interesting.

Gary
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Old 11-30-2014, 03:50 PM   #2
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Originally Posted by BoldAdventure View Post
Now to off to research weather or not I really want to do that disc brake conversion.
Why??

Everyone knows that disc brakes are many times superior to electric trailer brakes.

Yes, it costs a few bucks, but the margin of safety vastly improves.

The cost of safety, is meaningless when it comes to saving even one life.

Andy
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Old 11-30-2014, 06:03 PM   #3
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Andy that sounds like an endorsement.
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Old 11-30-2014, 06:42 PM   #4
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Andy, How hard to make the change?


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Old 11-30-2014, 08:09 PM   #5
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I agree with Andy. After 8 years of disc brakes, I would never go back to electric brakes; I consider electric brakes a kind of kludge that happens to be cheap to implement.
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Old 11-30-2014, 09:38 PM   #6
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Andy, How hard to make the change?


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Stickly labor, no tecknical required.

Instructions come with our kits.

Andy
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Old 11-30-2014, 11:10 PM   #7
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Do you get a long delay between going to the brakes and the AS brakes going on?


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Old 11-30-2014, 11:17 PM   #8
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Disc v Electric brakes ??

First, I don't understand this as a comparative.

Disc vs Drum yes, hydraulic vs electric yes.

Disc vs electric - not. Electric braking would seem to imply a purely electromotive force/resistance (ala Tesla, Prius, etc.)

One is the physical form implementation, the other is the actuator drive scheme.

We know there are both hydraulic drum and hydraulic disc brakes systems.

I know there are electric drum brake systems, common on trailers, which we mostly all have (electric vs. hydraulic solenoids pressing the shoes to the wheel housing)

Are you saying there is an electrically-actuated disc brake system for trailers? It's possible, just not well-known. Otherwise I could not imagine implementing hydraulic brakes on a trailer driven by the tow vehicle system, but I suspect their could be a hydraulic pump operated off the 'TV' electric brake source.

If so... make, model, vendor, web reference... and in addition, if there are specific products/implementations for Airstream (preferably validated by the factory.)
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Old 11-30-2014, 11:28 PM   #9
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When I said electric brakes, I was simply referring to drum brakes where a magnet is used to actuate the braking. The disc brakes are commonly referred to as "electric over hydraulic" meaning that an electric signal is used to control the hydraulic pump. In drum trailer brakes, electric directly operates the brakes.
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Old 12-01-2014, 08:05 AM   #10
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Quote:
Originally Posted by JimAspinwall View Post
Are you saying there is an electrically-actuated disc brake system for trailers? It's possible, just not well-known. Otherwise I could not imagine implementing hydraulic brakes on a trailer driven by the tow vehicle system, but I suspect their could be a hydraulic pump operated off the 'TV' electric brake source.



If so... make, model, vendor, web reference... and in addition, if there are specific products/implementations for Airstream (preferably validated by the factory.)

Short answer, yes. Hydraulic 4 piston/caliper Dexter disc brakes actuated by an electric motor/pump combo knows as an actuator.

Someone asked about a delay in actuation, negligible if at all. Any report of delay first inspection is for air in system.

Andy put it pretty clearly but until you drive it, hard to appreciate it. Pretty sure it was std. Equipment on my '07.
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Old 12-01-2014, 08:10 AM   #11
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Delay depends mostly upon actuator manufacturer and/or the controller brand. But, as GC says, when properly bled, delay is minimal.
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Old 12-01-2014, 09:05 AM   #12
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When doing our hydraulic disc brake installation, the axles were NOT changed. In hindsight (which is always 20-20), I should have installed the Kodiak disc brakes with the sensor ring so ABS could be added in the future.

We ran into a problem with the distributor/vendor failing to mention to our installer that the disc brake hydraulic pump system we were ordering (Titan BrakeRite II SD which is a split system so electronics are separate from the pump for easier service) was incompatible with nearly all OEM truck brake controllers.

Due to the major solar battery system installation also happening at this time, the original battery box was empty and became the home for the hydraulic brake pump and it's separate control module.

This incompatibility discovery showed up as very erratic brake application coming through the mountains in the dark on the way home from the installation. No settings on the truck's trailer brake control system could resolve the issue.

I then started research for a compatible brake controller. The issue was to find one that could be installed and not have the Dodge Ram throw error codes for not using their OEM brake system.

We went with the Tuson DirecLink NE (can be used with their ABS system) brake pump controller and were able to wire it into place so no error codes were generated by the Dodge computer. It plugs into the OBDII port so it knows when the truck brakes are touched as well as when the accelerator pedal is eased off. Our DirecLink NE OBDII installation was in parallel with our Edge Insight engine gage and control system. One can fine tune the DirecLink NE settings and adjust for the GVW of any given trip.

The wiring work around was very simple to implement and the Dodge brake system was not impacted. I think the same bypass idea would work with other brands of truck.
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Old 12-01-2014, 10:40 AM   #13
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I installed two brake magnets on the storage box behind the propane tanks and wired them into the blue brake wire in order to use the built-in controller in my 2013 Silverado. The truck thinks it is seeing a drum brake system and the built-in controller works just fine. Braking has always been very smooth with this piece of southern engineering. Without the magnets in the circuit, the truck controller does not detect the trailer.
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Old 12-01-2014, 11:09 AM   #14
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Folks,

Not sure how this started as a new thread, I just made a suggestion to separate a brake question from tires. I don't have the powers AFAIK to break it out.

Gary
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