A500 schematic

[khuebner250]

Does this look right? This makes sense in my head. Lmk

I'm trying to see how many relays I'm going to need in my electrical system.

 

[Garrett Ellison]

I will have to re-read some long forgotten information on the A500 to make sure, but I believe your plan of action is correct. I like the vacuum switch to drop overdrive and lock up out under load, providing it is up the current carrying ability and doesn't need a separate relay. Providing it has the load carrying capacity and the transmission will allow separate lock up and overdrive function, about the only change I would make would be to fuse the hot wire at the battery connection to provide protection for the whole length of the hot wire.