Generator install

[Doc in Vermont]

I have a 440 ICD. Had to buy a rebuilt generator for it thru the local JD dealer. They told me they'd polarized the generator. I mounted it on the crawler today and connected the white wire to the "F" terminal and the black wire to the "A" terminal. The ammeter showed it wasn't charging. I then loosened the nuts holding the black & white wires and the ammeter indicated it was charging.

What do I need to do to make it charge? Do you think it is polarized properly?

[JD40c]

When you say loosen, how loose are you talking? Still somewhat snug? or freely turning?

[Doc in Vermont]

Freely turning nuts. The engine was running, the nuts were loosened and the two (connected) wires were showing sparks on the terminal studs.