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Old 03-19-2008, 07:54 PM
Bubble Bubble is offline
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Trailer problems: My brakes are locking up

everytime the trailer is pushed in reverse.

Everything is fine when rolling forward and when the power is disconnected for a while. I can then push it backwards.

Anyone know why my brakes would lock up when backing the trailer.

That's gonna pretty much make the thing useless.

It's the trailer for the 99 Maristar 230 VRS.

Thanks in advance.
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Old 03-19-2008, 07:59 PM
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skeeler skeeler is offline
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Is the boat on it or not? If not, try flipping the flat plug over before reversing.
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Old 03-19-2008, 08:00 PM
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There is a rollback preventer on the bracks (not really sure what it is really called). There needs to be power from your reverse light sent to the trailer to release the brakes. You should have a FIVE pin connector on the trailer. Like a four pin except the fifth is the reverse lights.
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Old 03-19-2008, 08:18 PM
Bubble Bubble is offline
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The boat isn't on the trailer, but I need to bring it home. What's the flat plug? Or where is it? Thanks.

----

...the need for power for a reverse light would make sense. I don't have a car that will pull this and I'm just using friends connections that are already on their trucks.
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Old 03-19-2008, 08:29 PM
defender1009 defender1009 is offline
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The flat plug is the plug at the end of your trailer wiring harness. Your boat trailer has a 5 plug, and your truck only has a 4 plug---that missing plug on your truck side is usually wired to the reverse lights when it is present, and that sends a current to the trailer harness when the reverse lights are on, which overrides the "rollback preventer".

Like Skeeler said, just flip the plug around before reversing, flip on your running lights, and you can back up with no problem.
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Old 03-19-2008, 08:30 PM
Bubble Bubble is offline
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Quote:
Originally Posted by Hammer
There is a rollback preventer on the bracks (not really sure what it is really called). There needs to be power from your reverse light sent to the trailer to release the brakes. You should have a FIVE pin connector on the trailer. Like a four pin except the fifth is the reverse lights.
Since for this season I'm using friends trucks and only need to tow about 3 miles, my question is this:

Is it really required to have the fifth pin? Is there a way to override the rollback prevention system that anyone knows of?

Thanks in advance.
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Old 03-19-2008, 08:34 PM
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There is a key that is made to fit in the slide tounge to prevent the pressure from engaging the brakes. Try your local dealer to find one. I think most MC trailers have this feature
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Old 03-19-2008, 08:52 PM
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once you find the "key", use some tape to hold it in place on the trailer...you've essentially by-passed this rollback mechanism.
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  #9  
Old 03-19-2008, 09:26 PM
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  #10  
Old 03-19-2008, 11:58 PM
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If your friends truck is a newer model it will have a 7 pin round plug above the bumper. All you need is an adapter that takes the 7 round plug and makes it a 5 pin flat. I have that on mine and it makes it so I do not have to flip the plugs just back up. I think they cost less then $10 at camping world or an RV dealer
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