830 CK Regulator

[Wicksfield]

I'm replacing the voltage regulator on my tractor. The old regulator has three posts marked Bat, Gen, and F. The new regulator
has 4 posts marked L, Bat, F, and a post under the regulator with no marking. Can you guys advise how to wire from the 3 to 4
post regulator? Clearly the F post goes to the field but stumped on the others.

Thanks for your response.

 

[wore out]

IGNORE the ''L'' terminal, look for a marking on the remaining terminal, it has to be the terminal connected to the generator output stud ''A''.