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Tool Talk Discussion Forum

electric over hydraulic brakes for a 18 foot trai

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Bob in GA

05-24-2005 12:59:28




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I am planning on purchasing a 18 foot trailer 6,000 lbs capacity with dual axles. I would like it to be as safe as possible, yet not hard to maintain. I think I once read that electric over hydraulic was the way to go for brakes. Am I right? What would you put on a trailer that you plannned on keeping for a long time and using every month?




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BFO

05-26-2005 04:04:18




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 Re: electric over hydraulic brakes for a 18 foot in reply to Bob in GA, 05-24-2005 12:59:28  
I retrofitted one of my older trailers from vac/hyd to electro/hyd. It was the only option for the 10k disc brake axles, when the customer switched from a F450 to a M-Class Freightliner. I used the 1600psi Hydrastar unit from Carlisle, and it worked great, customer is very pleased.



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big jt

05-26-2005 00:54:38




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 Re: electric over hydraulic brakes for a 18 foot in reply to Bob in GA, 05-24-2005 12:59:28  
Very interesting. I didn't even know such a thing existed until I did a web search after reading your post.

I will start by saying I have only had personal experience with electric trailer brakes and a truck tag axle with a system that is similiar to the vacuum over hyd.

One question I would have is are you going to be driving on pavement only? Also going where there is salt used on the roads? If so I would suggest the vacuum over hydraulic. If corrosion is not a issue those electric over Hyd look like something to try but kind of looks like the technology is new.

The truck with the vacuum system always felt like there is some lag in reaction on the extra axle but a little tough to tell on that application could be due to the large brakes (5" X 15") with two slaves per wheel.

I would be interested to see what someone who has experience with the electro Hyd has to say.

You are also correct that you don't want straight electric. I have had fairly good luck with them but they do require a fair bit of maintenance. No auto adjusters etc.

HTH

jt

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Mike M

05-25-2005 06:57:20




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 Re: electric over hydraulic brakes for a 18 foot in reply to Bob in GA, 05-24-2005 12:59:28  
If I was going to use a trailer that much I would also check into those hydraulic or even vacume operated brakes over just plain electric. The more stopping power loaded the better.



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Charles (in GA)

05-24-2005 19:41:56




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 Re: electric over hydraulic brakes for a 18 foot in reply to Bob in GA, 05-24-2005 12:59:28  
My next door neighbor has a very large gooseneck type trailer that has tandem axles with duals, and electric operated hydraulic disc brakes. It has a fairly small electric driven hydraulic power pack and a gel-cell backup battery. Hydraulic power pack failed when the trailer was new, he replaced it under warranty and has not had any more trouble with it. He says it is very smooth and seems to like the brakes alot.

Charles

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