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05-23-2014, 10:49 AM
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#1
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1 Rivet Member
1970 25' Caravanner
Dassel
, Minnesota
Join Date: Oct 2011
Posts: 13
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Brake conversion
I have replaced my axels with hydraulic brakes to axels with electric brakes. The question is the wiring. I am running 12/2 wire to the connector and am puzzled as how to wire them up since there are wires on the connector that seem to go to the old hydraulic system. Can I use them?
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05-23-2014, 11:25 AM
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#2
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Rivet Master
2005 39' Land Yacht 390 XL 396
Common Sense
, Texas
Join Date: Sep 2007
Posts: 5,319
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Quote:
Originally Posted by 5ndime
I have replaced my axels with hydraulic brakes to axels with electric brakes. The question is the wiring. I am running 12/2 wire to the connector and am puzzled as how to wire them up since there are wires on the connector that seem to go to the old hydraulic system. Can I use them?
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In short, yes. Should be a blue wire in the connector that is the brake wire, and your electric brakes should be wired to that blue wire, and ground coming from the tow vehicle.
__________________
Regards,
Steve
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05-28-2014, 08:37 AM
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#3
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1 Rivet Member
1970 25' Caravanner
Dassel
, Minnesota
Join Date: Oct 2011
Posts: 13
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Hydraulic to electric brakes
Quote:
Originally Posted by 5ndime
I have replaced my axels with hydraulic brakes to axels with electric brakes. The question is the wiring. I am running 12/2 wire to the connector and am puzzled as how to wire them up since there are wires on the connector that seem to go to the old hydraulic system. Can I use them?
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Someone here must have made this conversion. Please help me out. I hate to get this wire wrong, we are going to make a 400 mile trip to the far north shore of Lake Superior and there are some quite steep and bent roads.
Andy?
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05-28-2014, 08:54 AM
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#4
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Rivet Master
1995 30' Excella
Bowie
, Maryland
Join Date: Apr 2005
Posts: 2,345
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Wait, 12/2? Like house wire? You should be using regular 12 volt wire.
The wiring is fairly straightforward - from the 7 pin connector to all four brakes. Just disconnect the hydraulic pump entirely.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel
Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
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05-28-2014, 04:39 PM
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#5
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Moderator dude
1966 26' Overlander
Phoenix
, Arizona
Join Date: Apr 2002
Posts: 7,508
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Stranded wire should be used. Solid wire is not flexible enough for the job and could fail from flexing. If you want brakes and brake operation when towing the lake Superior area use wiring that will ensure you will have brakes.
>>>>>>>>Action
__________________
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!
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05-28-2014, 08:38 PM
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#6
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Rivet Master
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton
, Arkansas
Join Date: Mar 2013
Posts: 5,868
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I think that solid core wire would be ok so long as stranded wire is used for the last bit from the frame to the wheels, all the rest of the wire is stationary.
I don't know, Romex is a pretty good idea to go from the plug to the axles.
__________________
The fact that I am opinionated does not presuppose that I am wrong......
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05-29-2014, 04:31 AM
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#7
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1 Rivet Member
1970 25' Caravanner
Dassel
, Minnesota
Join Date: Oct 2011
Posts: 13
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Quote:
Originally Posted by Skater
Wait, 12/2? Like house wire? You should be using regular 12 volt wire.
The wiring is fairly straightforward - from the 7 pin connector to all four brakes. Just disconnect the hydraulic pump entirely.
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My no! I'm not using romax. It's 12/2 automotive type wire(stranded) with a grey jacket. My question was. There are two wires coming from the plug which are terminated with a trailer type two pin plug. I think but am not sure they went to the hydraulic brakes. One white one yellow. The white one is ground the yellow (brake?). The wires coming from the seven wires coming from the trailer plug are not colored the standard way. I guess one way to be sure is to connect to my truck and see if they work, and don't energize something else.
One other thing all of the seem to ground like a short when not connected to the tow vehicle, but work fine when it is. This is by using an ohm meter on ground to the body. Is this happening because it is not connected? Can it short to this extend and still work without frying everything?
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05-29-2014, 04:33 AM
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#8
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1 Rivet Member
1970 25' Caravanner
Dassel
, Minnesota
Join Date: Oct 2011
Posts: 13
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I need to add the yellow wire seems to go up into the trailer some where also then to the connection, and I can't tell where.
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05-30-2014, 11:45 AM
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#9
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Rivet Master
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton
, Arkansas
Join Date: Mar 2013
Posts: 5,868
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Brake conversion
I tell you what I might do.
I would seriously consider running new wires under the trailer. This might be the most simple and most trouble free route.
What it amounts to is you need a reliable hot wire and a reliable ground to each wheel.
__________________
The fact that I am opinionated does not presuppose that I am wrong......
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05-31-2014, 10:07 AM
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#10
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1 Rivet Member
1970 25' Caravanner
Dassel
, Minnesota
Join Date: Oct 2011
Posts: 13
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Exactly what I have done. Thanks.
Would anybody be intrested in the disc brakes and hubs/ rotors? Need pads and clean up but look to be virtually unused.
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05-31-2014, 10:23 AM
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#11
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by J. Morgan
I tell you what I might do.
I would seriously consider running new wires under the trailer. This might be the most simple and most trouble free route.
What it amounts to is you need a reliable hot wire and a reliable ground to each wheel.
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The yellow wire is for the brakes.
The blue wire is the charge line.
Andy
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