The diagram you have looks to agree with the Cub owner's manual pic for the wiring. If you are wiring it the original way, it needs the 4 position switch that controls the charging rate.. I thought that there was a library of IH/Farmall wiring diagrams mentioned on the forum. I have just spent a lot of time searching to no avail. An help you can provide will be appreciated. Or another option would be a picture, with the attachment points labeled with what wire attaches, of the 6 volt 3 position light switch. This is the one, not the square one. Bill
We sell a number of wiring harnesses and we've been adding some helpful diagrams to our site to assist you with installing the kits. If you've recently purchased a wiring harness from us, or if you are thinking about it, please check out our wiring harness diagrams now available. Also, keep in mind when purchasing wiring harnesses, that it is important to read the full description.. The Farmall Cub 6 Volt wiring diagram is a critical tool for the process of operating and maintaining your Farmall Cub tractor. Understanding how to read and interpret the diagram is the first step in troubleshooting any wiring issues that may arise.