I think the three wire dynamo wiring diagram I posted is only correct as far as the three wires are concerned.
Because I can find the two components ( the relay and regulator) on eBay UK, I do not think the B1500 tractor's wiring has been altered.
The relay may be involved with the no charge light.
Dave
Hi all,
On the diagram it shows Br/wh going to the rectifier.
White and yellow go straight to the light switch.? surely they would also have to go through the rectifier?
Mine is also like this.
Just tested generator,Yellow and white 6.5vac,Brown and white 22.6 vac Brown and yellow 16 vac.
Power going to the battery 13 vdc.Dont know if it was a bad connection and pulling off wires and putting them in again,but 13 vdc doesnt seem high to me.In fact maybe a little low. Values from generator are confusing though.