Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Generator


 
Post new topic    
View previous topic :: View next topic  
Author Message
1949ABG
Regular


Joined: 21 Sep 2011
Posts: 216


Report to Moderator

PostPosted: Sun Jun 30, 2013 7:19 pm    Post subject: Generator Reply to specific post Reply with quote

I posted a message last week regarding generator/regulator problems. I got that squared away when I found the points in the regulator welded together.

NOW, I tested the generator using John T.'s bench test. When I unhooked the field ground, the generator turned at the same speed as it did before.

I assume it needs a rebuild???
 
Back to top
View user's profile
John T
Tractor Guru


Joined: 14 Dec 1998
Posts: 14273


Report to Moderator

PostPosted: Mon Jul 01, 2013 3:10 am    Post subject: Re: Generator Reply to specific post Reply with quote

When she spinned good n smooth n even with voltage on ARM and case with FLD grounded that says the armature and brushes and bushings are at least decent shape, but if she didnt speed up some when you ungrounded the Field Id suspect a Field winding problem. It may be simple like a short to case or a break open there where the 2 splice in the middle or a problem at the FLD post pass through, I have seen them overtightened and broke or shorted out. Another problem may be one is shorted to case frame or theres an open in one of them??? If she has some miles on her a rebuild may consist of a new set of brushes, commutator turned down and mica undercut, field winding problem repaired. Id inspect and ohm out the fields, look for shorts to case or an open circuit (especially where they splice in the middle), before I gave up on her just yet..................

John T
 
Back to top
View user's profile
1949ABG
Regular


Joined: 21 Sep 2011
Posts: 216


Report to Moderator

PostPosted: Mon Jul 01, 2013 3:31 am    Post subject: Re: Generator Reply to specific post Reply with quote

Thanks for your help. However, since I have no experience with this type of repair, and don't understand 1/2 of what you were talking about, I think I'll take it in to the Auto Electric shop and let them deal with it.

Thanks again.
 
Back to top
View user's profile
John T
Tractor Guru


Joined: 14 Dec 1998
Posts: 14273


Report to Moderator

PostPosted: Mon Jul 01, 2013 4:10 am    Post subject: Re: Generator Reply to specific post Reply with quote

Heck, I dont understand 1/2 of what I said either lol

John T
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> John Deere All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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.

Yesterday's Tractors - Antique Tractor Headquarters