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Old 06-11-2015, 02:40 PM   #1
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What happens?

Putting some 'worst case scenario' thoughts together....

In the event the trailer separates from the tow vehicle (both the hitch AND the safety chains fail), the breakaway switch is pulled the trailer stops because full battery power is dumped into the brakes magnets.

(Bad thought here, a trailer just stopped in the middle of the highway without showing any brake lights.)

Here's my (weird) concern, what just happened to the 7-wire umbilical that used to supply power for lighting, brakes, etc.?

I ask because the cover for the socket on the tow vehicle has a barb that links with trailer's plug to prevent the 7-pin connector from falling out.

Is the cover designed to fail? Rip loose? Open when excessive force is applied? Or does the cord fail? And where?
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Old 06-11-2015, 03:19 PM   #2
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My only comment is that will be the least of your problems!
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Old 06-11-2015, 03:47 PM   #3
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Quote:
Originally Posted by mike837go View Post
snip...
Here's my (weird) concern, what just happened to the 7-wire umbilical that used to supply power for lighting, brakes, etc.?

I ask because the cover for the socket on the tow vehicle has a barb that links with trailer's plug to prevent the 7-pin connector from falling out.

Is the cover designed to fail? Rip loose? Open when excessive force is applied? Or does the cord fail? And where?
I've never 'lost' a trailer, but the barb is broken on my second connector cover. I think the first one broke when something snagged on the cord during a very tight turn when I was towing a 5th wheel. I don't recall how the second one broke.

Haven't bothered to replace the cover again. I now use a short bungee to keep the plug from falling out.
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Old 06-11-2015, 04:26 PM   #4
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Stopped in the highway is better than careening into oncoming traffic.


That little plastic tab that holds the cable is nothing compared to forces that will be exerted to snap it.
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Old 06-11-2015, 10:17 PM   #5
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Agree with the above. And it really won't matter at the time whether the trailer lights are on or not. There will be enough sparks coming from it that traffic wouldn't see the lights anyways
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Old 06-11-2015, 10:39 PM   #6
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I'm thinkin' the trailer will yank it right out of there. That flimsy plastic and wire sized hinge pin doesn't stand a chance. And I, too, think that will be the least of your problems. If it should happen, I just can't see you standing there saying, "Dang! It broke the cover off my 7-pin plug!"
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Old 06-12-2015, 10:04 AM   #7
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...least of the problems....


I knew that when I started this thread. Just got to wondering about details. (Waaayyyy too much coffee yesterday.) We could get into insurance issues too, once the pieces were removed from the highway after this imaginary incident.


So far, I've been lucky (and paranoid enough) to have never had a trailer fall into the safety chains. That won't stop me from hooking up everything. Then double-checking.


Then checking the hitching at every stop. The tires get a temperature check (touch) and the bearings are field tested (pushed at the top with a foot) at each stop too. Plus sniffing for the very distinct odor of burnt brakes.
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Old 06-14-2015, 01:17 PM   #8
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Odds of the trailer coming to an instant complete stop a slim. Check your insurance to make sure you are covered if your trailers comes unhitched while traveling. Many insurance policies only cover a towed trailer while hitched to the tow vehicle and the minute it comes unhooked there is no longer coverage.
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Old 06-14-2015, 01:49 PM   #9
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I always thought about the trailer brakes having to be adjusted perfectly or it would pull to one side and flip over
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Old 06-14-2015, 03:21 PM   #10
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With the hitch bouncing and trying to dig in to the black top, I doubt that one brake not dragging as much as the other will have a significant input. The only thing for sure is that the end result would not be pretty. You would clearly want to be somewhere else!!
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