Tug to Trailer connection - Fiberglass RV


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Old 08-11-2010, 08:20 PM   #1
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Tug to Trailer connection

I cut my 110v cord on the Burro and added a shore power connection, which will then allow me to plug a cord into it and to the camprground electrical supply.

so now I am hooking up the trailer light connection cord changing from a 4 pin to a 7 pin style, this got me thinking and wondering, could the same be done for the 7 pin 12v connection ie: have a out let like on the tug on the camper and then a 7 pin male to male cord?, that could be taken off when not in use?

Anybody ever done this? any thoughts good or bad on doing it?

Scott
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Old 08-11-2010, 08:38 PM   #2
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Alot of pop-up/folding campers have that, but they have a different plug that connects to the frame recepticle. Only problem with them is that they pull loose sometimes while towing. I imagine a bargman 7 pin plug locks into place and wouldn't be a problem with coming loose. The easy way to disconnect your cord when not in use would be to just cut it off. I have a hefty pair of cable cutters you can borrow!

LOL
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Old 08-11-2010, 08:42 PM   #3
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well now why didnt I think of that!
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Old 08-11-2010, 08:43 PM   #4
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well now why didnt I think of that!

Well, some of us are thinkers!
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Old 08-11-2010, 11:35 PM   #5
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ie: have a out let like on the tug on the camper and then a 7 pin male to male cord?, that could be taken off when not in use?

Anybody ever done this? any thoughts good or bad on doing it?

Scott
That setup was original on my boler American, link to post and picture:
Electrical. Hook Up?

The other end was hooked up to a standard 7 pin Bargman.

I swapped out the 7 round pin to the Standard 7 pin bargman on the body of the trailer then made 2 separate cords for connecting to tow vehicles. One to the standard 4 flat, the other for the standard 7 pin to take advantage of the new electric brakes and 12V power.
It adds a certain amount of flexibility in tow vehicles and definately adds a little extra in security.
Without a wire to plug in, or safety chains to hook up (mine are removable), one is less likely to have their trailer stolen. And if stolen, more likely to get pulled over for having no tail lights or safety chains.

You can see pictures of the original and new females on my trailer in this post:
Restoring Our 1972 Boler American
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Old 08-11-2010, 11:42 PM   #6
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You can see pictures of the original and new females on my trailer in this post:
Restoring Our 1972 Boler American
Roy I have to say that with all that build up, the thread couldn't possibly meet expectations
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Old 08-11-2010, 11:48 PM   #7
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Cool I added a 7-pin receptacle to the trailer...

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Originally Posted by Scott B. View Post
so now I am hooking up the trailer light connection cord changing from a 4 pin to a 7 pin style, this got me thinking and wondering, could the same be done for the 7 pin 12v connection ie: have a out let like on the tug on the camper and then a 7 pin male to male cord?, that could be taken off when not in use?

Anybody ever done this? any thoughts good or bad on doing it?

Scott
I did something a little different. On the back of my propane tank cover, in the space between the 2 tanks, I installed a 7-pin receptacle, a marine 12-volt outlet with cover plug, and 3 switches.
Click image for larger version

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I wired it up so that the 12-volt charge line powers the 12-volt receptacle, and feeds power through the switches to:
  • the Tail and Side-marker light circuit
  • the Brake Light circuit through a flasher
  • the Back-up Light circuit
Then I sealed all this wiring in a vulcanized rubber tape covered with electrical tape covered with 3M electric insulating sealant.

Instead of just leaving the cord loose...
Click image for larger version

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I plug it in, which accomplishes 3 things...
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  1. keeps the plug pins protected and dry
  2. provides a 12-volt receptacle on the outside of the trailer
  3. tests the trailer's light circuits before each time I hitch up
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Old 08-12-2010, 12:14 AM   #8
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ok so it can be done and doesnt seem to be any con's

next question has anyone seen a 7 pin female recepticale in Stainless or Chrome?

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Old 08-12-2010, 12:32 AM   #9
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Yes,
http://www.hopkinsmfg.com/38495.html
amongst others
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Old 08-12-2010, 08:55 PM   #10
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Thanks Roy.
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Old 08-15-2010, 05:13 PM   #11
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Fred Simson:
WHOA! I would be VERY leery of having electrical connections in with the propane gas tanks. Sparks and gas seem to me to not be a good combination.

Has your setup been approved by a certified gas technician?
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