Sounds like you MAY have blown the small jumper wire to chassis ground at the midpoint of the series-connected 12 Volt batteries.
This (oddball) to most system really isn't that tough to troubleshoot or repair if you read up on it and DON'T listen to statements like "The starter was the only thing that saw 24 volt power. ", or "If you have your batteries hooked in series they are not wired correctly." or " My understanding of the fuse is that it will protect the lights from blowing from the 24volt load in case of a short?" you'll get it fixed!
The main difference between the early and late diagrams is that the early system used the cast iron chassis as the common/crossover connection between the series-connected 12 Volt batteries, and the later system used an actual battery cable to join the two series-connected 12 Volt batteries, with a jumper wire or fused jumper wire joining the midpoint of the series-connected batteries to chassis "ground".
From the point of view of the starter, generator, and voltage regulator it's a 24 Volt system created by connection two 12 Volt batteries in series.
From the point of view of the fuel gauge and lights, half of the load is fed from what's effectively a (+) grounded 12 Volt system, and half from a (-) grounded 12 Volt system.
Pay attention here...
The large stud (highest up) on the stater solenoid should read (-) 12 Volts (nominal) with respect to the chassis.
Stud on the engine block side of the starter belly" should read (+) 12 Volts (nominal).
The "BATT" terminal on the voltage regulator (blue wire) (-) 12 Volts to chassis, and the A2 terminal (brown wire) at the generator (+) Volts.
If you want help, check the voltages at those points and post back.
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 - A Brief History of Tractors in Australia - by Bob Kavanagh. After Captain Cook's exploration of the east coast in 1770 the British Government decided to establish a penal colony in Australia. The first fleet arrived in 1788 and consisted mainly of convicts who were poorly equipped and new little of farming techniques. The colony remained far from self-supporting and it was not until the early 1800's that things started to improve. Free settlers started to arrive, they followed the explorers across the mountains and where land was suitable set up farms. T
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[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.