Posted by Janicholson on April 07, 2017 at 19:42:02 from (63.152.202.29):
In Reply to: Re: Alternator issue posted by David G on April 07, 2017 at 19:23:23:
If the system is working as it should, the regulator in the Hitachi acts as follows: When the key is turned on, the ignition voltage goes to the L terminal through (small light, 10 ohm resistor, or Diode. This voltage is sensed as excite voltage and causes the field to turn on. The voltage going to the regulator is sufficient to light the light bright because the regulator acts as a ground in this condition. As the engine starts, the Hitachi (through the regulator) supplies charging voltage to that terminal. The bulb now has full voltage on both sides of the bulb, and it goes out because there is no ground. If the regulator fails, or the brushes on the rotor fail, or it is wired wrong, the light can be flickering, on steady but dim, or bright. If the source to ignition is on the coil side of the ballast resistor it can stay lit as well. Does this help? Jim
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. 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 - Search For Spares - by Anthony West (UK). Following on from the aquisition of the old Fordson F, I was very much in need of spares. As a novice though I didn't appreciate the fact that there were so many Fordson tractors made, that all the other makes seem rare by comparison. As far as I was aware a fordson was a fordson and it was only through trial an
... [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.
