Official manuals for the Vladimirec T-25 series are often hosted on archival or specialized tractor sites: Operator's Manual
It looks like you're looking for the (or the full electric wiring diagram) of the Vladimirec T-25 tractor manual in PDF format. vladimirec t25 manual pdf %C3%A9lectrique
If you are experiencing electrical issues, follow these standard procedures: Official manuals for the Vladimirec T-25 series are