Airstream will not go backwards

[dennis82468]

I purchased a 1975 Airstream Sovereign today. When I got it home I tried to back it into place but the wheel locked up. Is there something that I don't know concerning backing up the RV or is there something wrong with the axles?

Thanks in advance

[Melody Ranch]

Disconnect the trailer wiring. Best bet is that the seven way is misfired...a-la old style.

[TG Twinkie]

If you have your foot on the brake in the TV. The brakes are being applied on the trailer. One or more of them may be out of adjustment or have mechanical problems.

[Wazbro]

The trailer break wire hooked to the TV backup wire is a common way the plugs are miswired so the brakes activate with backup lights.

[mccrosti]

I have a 72 overlandet that had an umbilical redesigned by the po. My TV is a 03 tahoe anyone have a diagram for this? Thanks!

[adonh]

Originally Posted by dennis82468

I purchased a 1975 Airstream Sovereign today. When I got it home I tried to back it into place but the wheel locked up. Is there something that I don't know concerning backing up the RV or is there something wrong with the axles?

Thanks in advance

Here are the wiring diagrams for the old style and new style 7 pin connectors. As others have said this may be the problem.

7wayplug1966-81.pdf
7wayplug1982-84-1989-02[1].pdf

Hope this helps

[genearnold]

Above answers are most likely correct. My old '69 taught me that old Airstreams are not wired to the same schematic that later standard seven wire cords are wired to. I changed my trailer attachment to the new standard with a lot of time and a test bulb. The diagrams sent by Adonh will save you bunches on the time.

[dennis82468]

Thanks everyone. This forum is awesome. I appreciate all of the experience

[dennis82468]

Originally Posted by adonh

Here are the wiring diagrams for the old style and new style 7 pin connectors. As others have said this may be the problem.

Attachment 190915
Attachment 190916

Hope this helps

when looking at the diagrams...am I looking into the male part of the cable or the female receiver at the truck and trailer

[Silverflames]

Well seeing that it is a week later, were you able to back it up once the umbilical cord was removed?

Also you can buy new backing plates for about $60 each. It's really the way to go. When I pulled apart my breaks, some of the return springs had rusted through, and fallen off.

[dennis82468]

Originally Posted by Silverflames

Well seeing that it is a week later, were you able to back it up once the umbilical cord was removed?

Also you can buy new backing plates for about $60 each. It's really the way to go. When I pulled apart my breaks, some of the return springs had rusted through, and fallen off.

Yes...I was able to back up. I found out that my reverse light wire and my brake wire were wired incorrectly.

[mccrosti]

I agree with Dennis, you guys are awesome!