Posted by George Marsh on April 15, 2013 at 10:44:33 from (64.12.116.200):
Helping a guy work on a MF 50 with a 12v genny. Took the genny apart and cleaned the communtator. I think we got the genny working. The Delco regulator has 3 coils. The top coil is connected to the fields, the middle coil, which is made of perhaps 10g wire, is connected to the armature. The botton coil, which is also made of 10g wire goes someplace???perhaps the switch and back to the +12v.
The wiring is a mess. I got the genny to charge by exciting the fields with a 12v tail light bulb. At an idle the armature showed 13.68 v, however the ammeter is wired backward, it showed discharge. There is no voltage getting to the fields when the switch is on. How should the voltage regulator be wired? A diagram would be nice, but not necessary. Shouldn"t there be 12v going to the fields when power is applied to the regulator? Should the armature wire be connected two the middle terminal of the regulator? Should the switch power up the bottom terminal of regulator?
Going to guess there may be two or more issues.
Is it possible the regulator needs polarized? I haven"t worked on generator in decades and have a bad case of CRS.
Any help will be appriciated. The guy is going to NAPA and try to buy a new regulator. BTW, there are no numbers on the regulator. Numbers may help too. George
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
