(800) 853-2651
SHOP NOW

super md gen question

A

Andrew Z

Well-known Member
im working on geting my super md's generator wired up i have followed the manual for the tractor and used bob m's diagrams to check over everything. however i seem to be having problems with it charging. when the engine is running i get 13volts at about 700 rpms yet when i increase the rpms it drops way off to 12 or less. finally when i stop to tractor it shows a strong discharge out. (kill switch in or out). i have tried john t's trouble shooting check list but have not really found any changes yet. the voltage reg is new and the gen is rebuilt.

thanks for the help


Andrew
 
(quoted from post at 15:23:55 06/21/09) im working on geting my super md's generator wired up i have followed the manual for the tractor and used bob m's diagrams to check over everything. however i seem to be having problems with it charging. when the engine is running i get 13volts at about 700 rpms yet when i increase the rpms it drops way off to 12 or less. finally when i stop to tractor it shows a strong discharge out. (kill switch in or out). i have tried john t's trouble shooting check list but have not really found any changes yet. the voltage reg is new and the gen is rebuilt.

thanks for the help


Andrew
Click to expand...
ou say that you have 13v @ 700rpm, then drops to 12v as increase rpm. What is ammeter showing at each of these two conditions as well as what is it doing as rpm are gradually increasing?
 
the ammeter goes from the postive at a start to 0 then by 1000 rpms its way over discharge. i took the cover off the the voltage regulator to find the one of the contacts was frozen shut i moved them apart but it wants to do the same thing. also when i go to polarize the system the same contacts get stuck together again. is there adjustment in them that i have to make?


Andrew
 
i changed around the battery terminals to a negative ground and the same result. i played around with the regulator and i can get it to charge if i hold one of the contact points shut. but when i release it it goes back to discharging again. i think the regulator is bad perhaps? brand new though

Andrew
 
You must log in or register to reply here.

Similar threads

J
Farmall MD 12v generator system
Replies
11
Views
1K
Jvoss
J
M
Autolite generator not charging, long post
Replies
14
Views
681
Mike(NEOhio)
M
P
Super M clutch
2
Replies
21
Views
4K
PretendFarmer
P
J
Super 77 6V charging
Replies
5
Views
1K
Jeff(WC)(MI)
J
3
300 Farmall charging question
Replies
4
Views
601
300guy
3
Tractor Parts Tractor Manuals

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.

Copyright © 1997-2024 Yesterday's Tractor Co.

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
Website Accessibility Policy

Back
Top