2320 starts fine but is running off the battery. Alternator output voltage is correct at low and high idle. Battery ground connection is clean and tight. Battery voltage is 12.8 running or not. Battery is not charging at all. Battery is new. Old battery was boiling over on one cell when in tractor and when put on charger out of the tractor. No headlights, no glow plug indicator on instrument panel, although you hear the glow plug timer click off like normal about 5 seconds after you turn the key. Parking brake light and engine light are the only 2 lights that come on. Dealer service manager convinced me that it was the voltage regulator so I replaced it. Nothing changed except now I'm $130 poorer and of course they won't take it back. Dealer said check the main wiring harness ground connection but I can't find it. Dealer said it could be the ignition switch but I'm not sure how to check it. It looks OK and has no burns or melted spots. All fuses and the 4 relays I could find all are good. Somewhere on this site I read about a problem caused by the ignition switch being loose and turning slightly when the key is turned, and mine does move slightly when the key is turned. Could this be part or all of my problem? I would think that one of the 4 wires on the key switch would be a ground, but maybe not who knows? I need help!!!!