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Old 12-22-2015, 05:57 AM   #1
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Barker Jack blowing fuses

Just got the new to me trailer earlier this month. Its a 2008 Safari SE 23FB. While hitching up the electric jack quit. Batteries were full so checked the fuse. It had blown. Replaced the 30A fuse and it blew again, replaced to no avail, kept blowing fuses. Tried the manual crank and it wouldnt turn. Why not? The PO was nice enough to meet me at the storage facility and we got it jacked up and off the ball with a bottle jack. Replaced the fuse again and it seems to be working somewhat normally. What happened? Did the jack shaft get in a bind? Since this is the original jack 8 years old, Im thinking of replacing. I believe its a Barker as Colonial said it is what came on the unit. Suggestions?
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Old 12-22-2015, 07:04 AM   #2
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Does it work now with weight on it?

I'd just replace the jack, preferably with another manufacturer's jack. Just verify the jack head will clear the propane tank cover.

Airstream is no longer using Barker jacks but have switched to Atwood.

Kelvin
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Old 12-22-2015, 07:28 AM   #3
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it was working when we left the storage facility. Will run by tomorrow and get all the specs off of it and then head to Camping World.
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Old 12-22-2015, 07:49 AM   #4
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possibly a short in the wiring somewhere. Mine was giving me headaches - again - until I pulled the ground wire, cleaned the connection and retightened it. Probably needs some dialectric? grease.

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Old 12-22-2015, 08:13 AM   #5
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If the extension/ retraction range is off when the motor will not shut off when the maximum/minimum extension is reached and blow a fuse. This can be manually reset.
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Old 12-22-2015, 08:16 AM   #6
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Barker Jack blowing fuses

Don't spend any money on the Jack just yet. Check your batteries. A low voltage condition causes the jack to draw more power. This blows the fuse. That's what happened to us.

Maybe try this: Connect the umbilical to your TV and while the TV is running, try running the jack up and down. If no fuses blow, your batteries may be the issue.

Oh, dang. Never mind, I misread the OP post - you said the batteries were fine and that nothing would move the jack. <sigh>. Best of luck, maybe you need a new jack after all.
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Old 12-22-2015, 09:34 AM   #7
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The issue of note though is the OP describing the manual crank override as not functional either. I've replaced my Barker jack toggle switches twice so far; they burn out fairly readily -- even when burned out, and the fuse removed, the manual jack executes fine; so would in my mind be an indication of gears bound or destroyed?

There is an annual maintenance procedure to the jack to verify and add grease to the gearing -- I assume this has been undertaken?
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Old 12-22-2015, 09:44 AM   #8
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I had a Barker jack at one point . It would blow the fuse every time if it was not allowed to come to a stop before changing direction of travel . Just a thought .
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Old 12-22-2015, 10:01 AM   #9
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Two observations from personal experience.

1. Use only the correct slow blow 30 amp fuses.
2. Check the connections in the fuse holder. I was blowing fuses and found a bad solder joint in the fuse holder. Fixed the connection and fixed the problem.

Give Barker a call, they have a very responsive CS dept.
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Old 12-22-2015, 10:11 AM   #10
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If it wouldn't manual crank, the gears were bound up for some reason. The fuses blew when the motor became overloaded. I would disassemble, inspect the gears, and regrease. While the motor is free from the gears, I would hit the switch and make sure the motor was still good.
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Old 12-22-2015, 11:44 AM   #11
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With the power head off and best with the trailer supported with say a jack stand or similar try to run the post up and down manually.

Should go pretty easy full retract, full extend.

Hard to retract or extend?

Bent post is a strong possibility. Or internally kaput.
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Old 12-22-2015, 12:53 PM   #12
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Take a look at the inside wiring. Most likely a wire has come off its connection point. That is what happened with me. An easy fix and make sure the wire is tightly put back on its terminal.
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Old 12-22-2015, 03:49 PM   #13
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As AWCHIEF said, use only SLOW BLOW 30 Amp fuses. They are hard to find and look just like the other 30 amp fuses. Also, try to stop the jack before it is fully extended or retracted. I would suggest getting a bag cover, unless it is never exposed to the elements.
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Old 12-22-2015, 03:57 PM   #14
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I second CHIEF's suggestion to call Customer Service at Barker. They sent me the toggle switch and the limit switches at an unbeatable price $0.00. If the gears have stripped, you may have to get more invasive but the instructions to replace and reset them are not too difficult to master. Replace it? Only if the problem is not with the head.

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