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#11032986 - 08/10/15 01:18 PM Trailer brakes question
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6577
Loc: texas
I have had trailers all my life but they either didn't have brakes or had electric brakes.

This is the first boat trailer that has brakes, and I think they are surge brakes.

What is this in the picture circled in red? It is a hole in the tounge that the other piece, im gonna call it a key fits into. Backing it up the driveway without the key in makes the trailer brakes lock up, on flat ground it backs just fine with it in or out. Is that piece supposed to stay in all the time? Or just when needed?



Thanks

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#11033029 - 08/10/15 01:33 PM Re: Trailer brakes question [Re: redchevy]
ChuChu1 Offline
Extreme Angler

Registered: 03/08/10
Posts: 2999
Loc: Gonzales, Tx
The key is for backing only. Take it out when pulling.
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California. Well it's like breakfast cereal. You get rid of the fruits and nuts and all that's left are the flakes. Thank goodness there's a place called Texas.

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#11033049 - 08/10/15 01:41 PM Re: Trailer brakes question [Re: redchevy]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6577
Loc: texas
So every time you want to back up your supposed to hop out and put that thing in? Half the time it falls back out right after you put it in. I got a feeling its boing to get ziptied into place.

Oh and thanks.


Edited by redchevy (08/10/15 01:42 PM)

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#11035789 - 08/11/15 04:01 PM Re: Trailer brakes question [Re: redchevy]
heybaylor Offline
Extreme Angler

Registered: 01/24/05
Posts: 1739
Loc: Lake Fork
Originally Posted By: redchevy
So every time you want to back up your supposed to hop out and put that thing in? Half the time it falls back out right after you put it in. I got a feeling its boing to get ziptied into place.

Oh and thanks.


ziptie it in place , and you have no brakes .

The better surge brakes have a solenoid the works off the backup lights.
stop the surgebrake from working in reverse
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heybaylor

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#11036538 - 08/11/15 09:30 PM Re: Trailer brakes question [Re: redchevy]
grout-scout Offline
TFF Celebrity

Registered: 12/08/08
Posts: 5953
Loc: Boerne, Texas
Red, your trailer plug should be a 5 flat. The 5th wire on the plug makes the backing actuator release when you put the truck into reverse. The key & slot is supposed to be used in emergencies (like your fuse blows or wherever you can think of that would require the brakes not to work).

There should also be a tab under the tongue that is for the breakaway cable, if you pull the breakaway cable then you'll have to push the tab up to release the brakes.

If you have a 7 RV round plug (as you know your Chevy does) on your truck then you can buy a 7 round to 5 flat convertor or replace your boat trailer light plug with a 7 round and make sure the backup brake release wire is in the proper slot. (I think the center prong is the backup)

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#11036914 - 08/12/15 07:49 AM Re: Trailer brakes question [Re: redchevy]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6577
Loc: texas
Grout,

Yes it is a 5 flat. We are using a 5-flat to 7 pin converter. The trailer backs up just fine on flat ground or into the lake, but when you go to back it up the driveway into the garage (its a fairly steep grade) the brakes lock. Ill check to make sure all wiring is hooked up correctly and go from there. Thanks.

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#11038879 - 08/12/15 11:28 PM Re: Trailer brakes question [Re: redchevy]
grout-scout Offline
TFF Celebrity

Registered: 12/08/08
Posts: 5953
Loc: Boerne, Texas
Make sure your boat trailer reverse lights are coming on. On occasion I'll have to jack with mine to get it to work properly, too many connections.

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#11041289 - 08/14/15 07:50 AM Re: Trailer brakes question [Re: redchevy]
ChuChu1 Offline
Extreme Angler

Registered: 03/08/10
Posts: 2999
Loc: Gonzales, Tx
Originally Posted By: redchevy
Grout,

Yes it is a 5 flat. We are using a 5-flat to 7 pin converter. The trailer backs up just fine on flat ground or into the lake, but when you go to back it up the driveway into the garage (its a fairly steep grade) the brakes lock. Ill check to make sure all wiring is hooked up correctly and go from there. Thanks.


Check the gravity switch. Seriously, if it works correctly on flat ground and backing DOWN a ramp, it is connected right. Backing UP a STEEP driveway is allowing the weight of the boat to apply the brakes just as it is designed. Remember surge brake. That is what the key is for.
_________________________
California. Well it's like breakfast cereal. You get rid of the fruits and nuts and all that's left are the flakes. Thank goodness there's a place called Texas.

Member:
Stephen F Austin's Old 300
Sons of Confederate Veterans
Sons of The Republic of Texas

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#11044449 - 08/15/15 09:18 PM Re: Trailer brakes question [Re: redchevy]
Gamblinman Offline
Extreme Angler

Registered: 11/26/02
Posts: 2449
Loc: Yantis, TX
While the trailer lights are hooked up to the vehicle, have someone apply the brakes and shift into reverse while you listen near the tongue of the trailer. You should hear a distinctive and audible "click" when the vehicle is placed into reverse. That is the lock-out solenoid engaging. If you don't hear that click, the solenoid isn't working.

Gman
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