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KB, I dont have access to the Delco specifications, but regardless, its rating is in the range of 10 to 20 amps depending on which generator you have and a 2 or 3 brush etc and it should still be capable of producing enough energy to power the lights and ignition regardless. Heres a few thigns I would look at based on your brief desctiption. 1) Is the belt NOT glazed up and tight??? If either, the generators RPM may not be sufficient. 2) Is the Generator well grounded to the tractor and the Voltage Regulator well grounded to the generator??? You might run a ground wire direct down from the batterys grounded post to each and attach it and see if the generators output increases. The VR provides a ground return path for the generators Field winding, so if either the VR or gen dont have a solid no resistance ground (loose conenction or corrosion) the charge rate suffers. 3) If the gen and VR are both well grounded, try dead groundign the Field (smaller of the 2) posts on the generator and see if charge rate increases. The VR has a relay contact and resistor, and if the relay points are burned/carboned theres a resistive contact lowering field current. If a dead field ground helps the charge rate but the gen and VR are well grounded (try the direct ground test above) you have a VR problem. 4) The gen may be bad or just require some maintenance. One thing is the brush hold down spring assemblies are stuck or corroded not holdinG The brushes tight down against thE commutaTOR. Try to use air and WD 40 etc to clean and free the brush hold downs and snap them up n down and also, the brushes cant be worn down too low which can cause weak or no charge. To the extent possible, clean/polish the commutator so its brught and shiny copper as glaze and oil etc reduces the effectiveness. 5) As its so easy to perform, I would remove, clean and wire brush, and re tighten ALL connections on the VR and generator in cae any are bad or corroded. 6) I doubt you have a 3 brush generator, but if you do, the closer the third brush is rotated against the other on its side, the more she charges. Try these things and post back or e mail [email protected] and let us know and any more questions. Good Luck n God Bless John T Nordhoff in Indiana
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