Jim Becker said: (quoted from post at 20:27:29 12/20/09) Most regulators are (or were when new) labeled to indicate voltage. They were also labeled for polarity, if it mattered. The marking may be stamped in or printed on. It is usually on one of the mounting brackets or somewhere on the bottom side. Most Delcos have it stamped into one of the mounting brackets. There will be some combination or 6 or 12, maybe a V and maybe a P or N. Maybe be POS or NEG. Might say "P 6V" or simply "12N".
There is a troubleshooting procedure on a web page. I don't have the pointer handy, but somebody usually posts it on any charging problem thread. I would expect a 6-volt regulator to test as "bad" if mounted on a 12-volt system.
One quick test is to directly ground the generator "F" terminal. Check voltage at the "A" terminal. This bypasses all the regulating function of the regulator and should put the generator at full output. Check voltage at the "A" terminal. If this voltage is above what you measure at the battery, the regulator is bad.
I am assuming you have good grounds everywhere, including the generator shell and the regulator.
I will pull the VR tomorrow.
That is what I am worried about. I hate to toss a good VR. I find it hard to believe it could only last a handful of years.
That makes sense. Field to tractor frame to ground it out. Check voltage at Arm by touching one lead to arm and other to ground. Sounds like I need an extra pair of arms!
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 - Tractor Profile: Earthmaster - by Staff. This tractor, manufactured by the Earthmaster Farm Equipment company in Burbank, California was made for only two years. The Model C came out in 1948 and was followed by the "CN" (narrow-width model), "CNH (narrow-width high-crop model), "CH" (high-crop), "D" and the "DH" (high-crop) in 1949. The main difference between the models was tire size, tractor width and cultivating height. The "D" series were about 20 inches wider overall than the
... [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.
