1946-1949 1947 Cadillac convertible hydraulic system diagram needed

[BryanM]

Hello all
I am the proud new owner of a 47 convertible and I was wondering if anyone could share a diagram or any troubleshooting information for the hydroelectric system. Thanks!
Bryan

[tluke]

There are two fairly recent threads about the late 40's and early '50s Hydro-Lectric systems which I expect will be very similar to the '47. They explain how the Hydro-Lectric system works. Much involves the windows and switches but it also references the convertible top.
This post Re: 49 hydro electric system links to two articles for basic understanding how the system works and some troubleshooting.
This post Re: Hydro-lectric window help provides more info about Hydro-Lectric and includes a wiring diagram for the windows and the top and several troubleshooting tips specific to the switch issue in the original post.  You should probably read the whole thread for each of those two separate posts.

[Warren Rauch #4286]

  What you need is a copy of Body By Fisher Service News  Vol 7 Number 2 (from 8-30-1946). Its 24 pages on all 1946 Fisher Hydro-Electric systems. I'd offer to copy it, but there are too many light grays and pictures. It won't come out well.

  Almost all of it was included in the Fisher Body manual- Service and Construction 1946-1947.(or 1946-1948).
This book is on eBay all the time. The reprints  aren't as good, try to find a Fisher Printing.

Warren

[35-709]

You should also make a note of the link below, these folks are an invaluable source of parts, service, rebuilds, and knowledge for both GM hydraulic power tops and windows.

https://www.hydroe.com/