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Old 09-22-2012, 11:02 PM   #15
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Does the wiring diagram I posted in post #9 help at all?
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Old 09-23-2012, 05:26 AM   #16
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Breakaway & Jack Wiring

Hello Splitrock:
I will use this diagram to see if it makes better sense at the distribution panel. I have been referring to a newer manual with a different config for the 7Way. My Airstream didn't come with a manual.
Thanks,
Tom
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Old 09-23-2012, 09:22 AM   #17
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It sounds like at one time power for the jack was taken off the 12 v. wire for the breakaway switch, but later a separate source for jack power was taken directly from the batteries with a fused wire. I like the newer version because the jack power is not dependent on the converter. The converter can fail and no jack (except manually). It is easier to troubleshoot a bad battery than a bad converter and even with a bad battery, you can charge it enough to operate the jack.

In either case, you need extra fuses. The jack fuse can be blown by operating the jack under too much stress—by raising the trailer and truck too much would be one case. Another would be when the grease on the gears needs to be replenished.

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Old 09-24-2012, 05:46 AM   #18
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12 Volts at Breakaway and PJack

Thanks Gene:
Seems like I need to figure a way to trace back the two wires at the Breakaway switch and PJack to their sources at the 12V Distribution panel?

If the red wire was 12 volts at one time why is it dead now?
I wonder if I could do a continuity check from the end at the BSwitch to hopefully some connection in the panel?

Tom
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Old 09-26-2012, 11:55 AM   #19
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Quote:
Originally Posted by Tom Williams View Post
If the red wire was 12 volts at one time why is it dead now?
Possibilities: loose wire, broken wire, disconnected wire, blown fuse, loose fuse, corrosion on wires or fuse, bad terminal on converter or other 12 v. source, tested improperly (may not have found a good ground on tongue).

Test each end of wire once you find the other end. It may well be simpler to just attach a new, fused wire to the batteries. The fuses for the newer jacks are pretty high amperage and are hard to find except at RV stores. I can't recall how many amps, unfortunately.

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Old 09-26-2012, 01:56 PM   #20
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Does this help?


Airstream CLASSIC TRAILER free Owners Manual (Page 80)

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