Wow Jim, good question, but its a lil wide open for now at least. I can help you here or by e mail or your phone calling me, but we need to get the problem narrowed down a bit to save us both time in the future. I will appreciate your help in answering my questions below which will help us both in future diagnostics. Then if its a charging problem I will tell you how to diagnose that or whatever other problem the questions below lead us to. 1) You say it wont keep the batteries charged, but is it charging now okay when running and they get discharged while setting??? 2) When running, does the ammeter show charge or discharge or never move????? 3) When sititgn and running, if you turn on the lights or ignition does the ammeter move?? Which way???? 4) So long as you unhook the batteries, do they remain charged okay????? ? 5) When you shut the tractor off, does the ammeter swing over to discharge????? ??? or move at all???? or go to middle???? What we need to figure out Jim is if theres a discharge problem when setting (which unhooking prevents) and if so and the ammeter swings over to discharge when you shut the tracor off, YOU MAY SIMPLY HAVE STICKING CUT OUT RELAY CONTACTS IN THE VOLTAGE REGULATOR. However, if thats not the problem but it stills discharges when setting, there may be another bleed/discharge problem. If they stil run down when setting even if totally disconencted, you have a battery problem, maybe a bad cell??? Is there electrolyte above the plates in all cellw????? ? Is there any gray or milky appearance in any cells???? But, if its NOT discharging while setting, you may have a gen or VR problem, in which case I can help you diagnose that. Let me know answers to the above Jim, especially if the ammeter swings to discharge when you shut her off,,,,, , and if unhooking the batteries causes them to not discharge,,,,, ,, and if she shows charge when running and I will do my best to help you out. Post back or e mail jmn50@msn,com or feel free to call me at (812) 824-4608 with any questions. Good luck n God Bless ya Jim John T Nordhoff in Indiana
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