Posted by John T on November 25, 2007 at 18:13:48 from (66.244.83.147):
In Reply to: M Genertor posted by henryv1111 on November 25, 2007 at 17:45:39:
Your NOT supposed to flash the gennys FLD post but its ARM to Polarize it. Heres how to see if non charging is a Genny or other problem:
FIRST you may wanna insure BOTH the Cutout Relay and Genny are well grounded. If in doubt run a jumper wire from the grounded battery post to the Gennys and Relays case n see if a good ground makes her charge????? Maybe you have a bad ground on one of those or a poor wiring connection?? Sure the belt is good n tight????
NEXT: With the tractor running, temporarily ground the Gens Field post to case.
IF IT’S A CUTOUT RELAY SYSTEM and she charges only if you dead ground the Field but NOT otherwise, its either a bad light switch or the switch isn’t well grounded or else the wires bad or open from the Gens Field post up to the switch.
6. If she still don’t charge, leave the Field grounded and jump a wire across from the Cutout Relays BAT terminal over to its GEN/ARM terminal (jump by passes the cutout relay) and see if she charges. If then but not otherwise, the Cutout Relays NOT working or not wired correct.
7. With the 2 steps above, you have basically by passed the Cutout Relay and light switch 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 (like from the BAT terminal on the cutout relay) 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.
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