Do all digits light up when you turn switch on. If not, you may be lucky , there are two power sources to the tach, one is switch powered, other is live all the time. There is a inline fuse for tach down by the other fuses and may just be corroded. I always check for power and good ground at the connector that hooks into rear of tach. All pins are numbered, however I don't have diagram in front of me . I think number 1 is keyed power, two is ground and then about 9 is from inline fuse. At any rate, you need power to two pins. You have an rpm sensor reading off flywheel, and mph sensor reading off transmission gear. Not likely one of them if neither rpm or mph work. Original data center was not very reliable therefore they switched to the Dickey John one , similar to 50 series tractors. Check your grounds, connections and if all else fails the unit can be sent in for repair. We always sent ours to a place in Iowa, new ones are very expensive.
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 - Two-Brush Generators - by Chris Pratt. Whether for product liability or because the aftermarket parts and labor business is lucrative, this concept is disturbingly prevalent. Fortunately when you step into your shop and make that jump 50 years back in time to work with your old tractor, this concept goes out the window. Even so, when it comes to the charging system, people quickly revert to this idea and start replacing the major components one at a time until it works. The reason you don't find any decals in your replacement set wit
... [Read Article]
Latest Ad:
Massey Ferguson model 65 diesel 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.
