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Old 05-05-2016, 05:48 PM   #11
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Originally Posted by MikeDE View Post
We have a 2016 Jayflight 34RSBS setup at a permanent site.
The unit came with a power tongue jack as part of the package.
I'd like to disconnect the power to the jack to avoid accidental or intentional activation of the jack, so it does not mess up the leveling.
Took a brief look and could not find an in-line fuse. The power wire traces back to other wiring (in a large loom) and it goes into the frame. The unit also has solar prep (not using) and not sure if the hot (red) leads on the positive side of the battery are for that or the jack. 3 hot (red) which I'll assume the larger one is for the coach. Nothing is marked.
My next check will be the main fuse/breaker panel to see if the jack fuse is there. I'd prefer the fuse removal option over the battery disconnect.
Thanks
Mike

I saw a similar question recently from some new owners that had no power to the jack. What they found out was there is no inline fuse on their jack. Jayco is switching over to auto resetting 30 amp fuses, but these were bad and not resetting. What you have to do is follow the wires where the main loom enters the trailer and look for a small silver fuse thats about an inch long half inch wide. In your case if you want to cut power to the jack just remove one of the wires on the fuse and the jack will have no power.
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Old 05-05-2016, 08:17 PM   #12
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I'm not sure - because I have no schematic in front of me - but if you somehow routed that brake wire differently, you may have no emergency brakes in the event of a disconnect. OR worse - you could have wired them permanently ON, which would drain your battery in no time, keeping the brake magnets energized.
I was just putting my kids to bed and realized where the confusion lies. I indicated electric brakes. What I meant to say was breakaway switch for the brakes.
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Old 05-06-2016, 06:52 AM   #13
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Thanks for all the suggestions
I think we'll let the dealer disconnect the jack for us since it seems like there is no fuse or easy way for me to do it.
We have a short list of repairs/adjustments that are needed anyhow.
Thanks again
Mike
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Old 05-06-2016, 09:49 AM   #14
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The easiest solution is to add an inline fuse. Pull the fuse when you are setup. When you want to adjust the tongue height, reinstall the fuse. This is very easy and cheap to do.

I would not add a battery disconnect. If you disconnect the battery, and you have a power failure during the week while you away, the refrigerator could not automatically transfer to gas power.
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Old 05-06-2016, 10:06 AM   #15
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Originally Posted by MikeDE View Post
Thanks for all the suggestions
I think we'll let the dealer disconnect the jack for us since it seems like there is no fuse or easy way for me to do it.
We have a short list of repairs/adjustments that are needed anyhow.
Thanks again
Mike
Mike rather than telling dealer to install a cutoff/disconnect or additional fuse, get the dealer to show you where the fuse for the jack as it is probably already there. On my trailer if you over extend the jack up or down it pops the fuse (overload protection) so I had to replace mine a few times until I put some marks on the jack. You'll want to know where this fuse is in any event.
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Old 05-06-2016, 12:19 PM   #16
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Originally Posted by Ottawasteve View Post
Mike rather than telling dealer to install a cutoff/disconnect or additional fuse, get the dealer to show you where the fuse for the jack as it is probably already there. On my trailer if you over extend the jack up or down it pops the fuse (overload protection) so I had to replace mine a few times until I put some marks on the jack. You'll want to know where this fuse is in any event.
Good idea thank you
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Old 05-06-2016, 12:53 PM   #17
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Originally Posted by Jagiven View Post
The easiest solution is to add an inline fuse. Pull the fuse when you are setup. When you want to adjust the tongue height, reinstall the fuse. This is very easy and cheap to do.

I would not add a battery disconnect. If you disconnect the battery, and you have a power failure during the week while you away, the refrigerator could not automatically transfer to gas power.
The easiest and simpliest solution to deactivate is to just cut the cord coming out from the jack power head and usually wire tied to the post as it passes down to the frame and then connected to the battery. That is the positive wire [jack is grounded thru the trailer frame so there is no negative wire. Cut this wire and secure it for a future need, and you have deactivated the jack.
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Old 05-17-2016, 06:45 AM   #18
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After contacting the dealer and looking closely I was able to locate a 30 AMP inline blade fuse for this power jack. It was located near the frame
Thanks for all the help.
Happy trails
Mike
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Old 07-08-2016, 09:14 PM   #19
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Fuse?

I found the fuse pretty easily after my blew! I tried to lift the front too high. It's in a black square about 1-1/2" x 1-1/2" x 1/2" or so thick. Pop the cap and it's a 20 amp fuse. The power jack will not run without it. So I keep several spare fuses in different amp ratings in the door pocket of my truck now, just in case.
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