Breakaway Switch - Fiberglass RV


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Old 10-02-2010, 08:16 AM   #1
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Breakaway Switch

I installed a breakaway switch, wired it (per instructions) to battery positive and brake wire. When I jacked up the trailer, spun the wheel, pulled the breakaway, it never locked up the brakes. Of course I had the T.V. electrical disconnected, (per instructions.) Any ideas?
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Old 10-02-2010, 08:36 AM   #2
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I installed a breakaway switch, wired it (per instructions) to battery positive and brake wire. When I jacked up the trailer, spun the wheel, pulled the breakaway, it never locked up the brakes. Of course I had the T.V. electrical disconnected, (per instructions.) Any ideas?
Did you check to see if they will lock with the controller?
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Old 10-02-2010, 09:56 AM   #3
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Check the brake adjustment.

Bill K

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I installed a breakaway switch, wired it (per instructions) to battery positive and brake wire. When I jacked up the trailer, spun the wheel, pulled the breakaway, it never locked up the brakes. Of course I had the T.V. electrical disconnected, (per instructions.) Any ideas?
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Old 10-02-2010, 10:45 AM   #4
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Did you check to see if they will lock with the controller?
They seem to work fine with the controller. They may need fine tuning.
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Old 10-02-2010, 11:19 AM   #5
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What is your battery voltage?
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Old 10-02-2010, 11:58 AM   #6
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Are you sure you have manually activated the break a way switch properly.
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Old 10-02-2010, 03:04 PM   #7
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what is your battery voltage?
12.6v
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Old 10-02-2010, 03:06 PM   #8
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Are you sure you have manually activated the break a way switch properly.
I pulled the disconnect out of its slot...that's all.
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Old 10-02-2010, 08:11 PM   #9
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The switch should work independently of the brake controller.
If you lose the trailer and activate the switch your not going to be hooked to the TV.
When you remove the plug you send 12v directly to the brakes.
Run a ground wire directly from the battery, -post, to the trailer frame and see if that solves your problem.
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Old 10-03-2010, 06:53 AM   #10
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Test the wire back at the brake drum to see if it's energized when you pull the pin
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Old 10-03-2010, 01:35 PM   #11
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I SOLVED THE PROBLEM! (with a little help from you all). It was a bad connection between the brake wire and the breakaway wire. This time when I pulled the plug, the brakes locked up.
Thanks again for your advice.
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