Hay Banjoman, First, the way I (an Electrical Engineer) was taught and for many many years on many many different tractors (I was a used tractor dealer in the past and used or farmed with many different tractors over 40 years ) I ALWAYS SUCCESSFULLY polarized a generator depended on if it were a Class A (IHC, Deere, Oliver, others) or a Class B (some Fords and some Massey Harris and others) charging systems.
POLARIZATION imparts a degree of the correct residual North South magnetic field into the soft iron field poles by passing current THROUGH THE FIELD WINDINGS which circle the poles. THEREFORE ALL YOU DO IS PASS MOMENTARY CURRENT THROUGH THE FIELD WINDINGS which imparts a degree of residual North South magnetism.
1) That being said for a Class A I used a jumper wirer to momentarily flash/jump from BAT over to GEN/ARM which passed current through the field windings imparting a North South magnetic field.
2) That being said for a Class B I removed the FLD wire and momentarily jumped it over to BAT which passed current through the Field windings imparting a North South magnetic field.
WHY THE FIFFERENCE On a Class B the other end of the fields are grounded so if you apply voltage (such as present on the VR's BAT) to the FLD post you pass current through the field windings to polarize..............On a Class A if you apply hot battery voltage (such as on the BAT) to the GEN/ARM terminal you pass current through the field windings to polarize. On a Class A the fields get their eventual final ground via the VR's connection (via its control relay action) to ground........On a Class B the fields are internally grounded......THATS WHY AND HOW YOU POLARIZE DIFFERENTLY
NOTICE this is how I learned and how I did it SUCCESSFULLY Im NOTTTTTTT saying there may or may not be other methods that work. This is ONLY how I do it and I tried to explain why and how it works so each are free to DO IT HOWEVER THEY PLEASE is fine by me
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
... [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.
