Many different ways to wire it with no indicator light. Back when the 10SI was "modern", GM used exciter relays for some hookups (instead of an indicator light). Some were hooked to engine oil-pressure switches.
The alternator (unlike a brushed generator), does not have enough residual magnetism to "excite" itself and charge at normal RPMs although some will after being spun around 2000 RPM. So, a small amount of current must be fed to it, to create magnetism, to get it started. The problem is, once the alternator DOES charge, current can backfeed through that exciter wire to the IGN circuit and prevent you from shutting off the engine. This is especially true with diesels that use low-current shut-off solenoids in the injection pumps.
So - you can use a light bulb as a resistor (and charge indicator), or a diode, or a relay, or just install a $15 "self-excite" regulator and hook with just one wire.
$2 spent at your local Radio Shack is the easiest. j$2 will get you a four-pack of 6 amp/50 volt diodes at Radio Shack. Part # 275-1661. The 3 amp units e.g. 271=1144 and 276-1143 also work fine. If you use the smaller 3 amp units, hook two in parallel to be safe. A 276-1661 diode is all you need.
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 - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
