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Didnt I already post my entire Troubleshooting Procdure for Non Charging, or just a part concerning how to see if its a Genny or a VR problem by dead grounding the Gennys Field post?? If you run through those it will diagnose the problem, if I didnt already let me know n I will re post it so you can diagnose the problem. Are you sure the ammeter even works?? The needle can be stuck corroded or it may not be wired correct, my Troubleshooting Procedure discusses that..... If you turn lights n ignition on etc NOT running it should swing over to - discharge does it????? ??? if you hold a magnet across its face n it works n not stuck the needle should deflect does it????? ?? The battery voltage should measure around 12.6 volts setting and then if the genny is working it should rise to around 13 to 14 volts n over, does it????? ??? if so the ammeter may be bad or miswired but shes still charging fine. Let me know if you need my complete Troubleshooting Procedure, cuz it or even the shortened Para 5 version (see below) about grounding the gennys field post will tell ya if its a genny or a VR problem..... . TO DETERMINE IF ITS A GEN OR VR OR CUTOUT RELAY PROBLEM 5. a) VOLTAGE REGULATOR SYSTEM: With the tractor running, temporarily ground the Gens Field post to case. If she charges then but NOT otherwise, the VR may be bad, or a wires missing from VR"s Field post to the Field terminal on the VR, or the VR isn’t well grounded. b) IF IT’S A CUTOUT RELAY SYSTEM and she charges only if you dead ground the Field but NOT otherwise, its either a bad switch or the switch isn’t well grounded or else the wires bad or open from the Gens Field post up to the switch. INSURE THAT GOOD SWITCH GROUND AND WIRING 6. If she still don’t charge, leave the Field grounded and jump a wire across from the VR or Cutout Relays BAT terminal over to its GEN terminal (jump by passes the cutout relay) and see if she charges. If then but not otherwise, a VR"s cutout relay isn’t working correct (maybe points burned/carboned) or a Cutout Relays NOT working or not wired correct. 7. With the 2 steps above, you have basically by passed the VR or Cutout relays functions, so if she still don’t charge, you"re left with a bad battery or wiring or the Gen itself. 8. MOTOR TEST. You can Motor test the Gen. If its grounded and you remove the belt and apply hot battery voltage direct to its ARM Post and have the Field Post dead grounded to frame, it should motor n run well (Armature n Brushes and Commutator likely okay). Then, if you next remove the Fields ground and it speeds up some, the Fields probably good. If it passes both those tests, it should charge, and if not, it may be a wiring or battery or grounding problem. The hot battery voltage may be taken off the VR"s BAT terminal or the starter post or the battery itself for this test. John T
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