farmall h electrical problem

tractor won't keep charge. new battery installed, new regulator, starter & generator ok
when tractor running & turn lights on it shows
charge, when turn tractor off & turn light switch on shows charge NOT discharge. could it
be light switch needs replaced??? Please advise

Thanks

If when shes not running and you switch on lights the ammeter should swing over to - discharge,,,,,,if it does opposite of the the ammeter is wired bass ackwards (or very possible see below for what happened).

HOWEVER that could be because it was say originally Positive Ground (like an old 6 volt Farmall) and you re installed a new battery at the opposite Negative ground!!!!!!!!

NOW a genny can still charge at EITHER polarity butttttttttt if polarity is changed the genny first needs to be repolarized BEFORE starting or else it can harm the Voltage Regulator (plus fail to charge properly). Also, if you reverse battery polarity the ammeter leads need swapped or it will read bass ackwards like you described.

I would first see what polarity the battery is??????????? if not already I'd change it to Pos ground,,,,,,,then Polarize the genny,,,,,,then start her n see what happens and hope the VR or relay wasnt harmed ???

Below is my troubleshooting procedure for NOn Charging, but Id check into the possible polarity problem first and correctly install the battery and polarize the genny and then try it

http://www.ytmag.com/cgi-bin/viewit.cgi?bd=farmall&th=665110

John T
John Ts Troubleshooting

thank you for your info. the info you sent me made me look further, found out wires in the light box was hooked up all wrong, with the aid of the handbook & magnifying glass I was able to
put wires back where they belong. Thank you, the
tractor is working the way it is supposed to be now. Thanks again..

Wayne Barnhart