Was involved in the installation and commisioning of a $13M, 9 machine, automated machining cell. It was running perfectly when the "powers that be" came out to look at their expensive new toy. Just prior to them coming out to the cell, the thing went nuts-all kinds of errors, machine shutdowns, alarms, finally complete system shutdown. Ceremony was postponed while we tried to find problem. Turned out that the "in process/real time" information was coupled out of each machine by an optical system. Just prior to the "dog and pony" show, a well-intentioned janitor had made a pass through the area with a ride-on floor sweeper that had two safety strobes on it. It had apparently "glitched" the communication system to the point that nothing knew where it was, and the cell supervisory computer "failed safe" by shutting down. Cleared and reset entire system and it ran perfectly again. Were able to reproduce error a couple times to verify suspicions. Immediate, panic driven, low cost FEF (Field Expedient Fix) was to install a couple of coffee cups over the strobe lights of the sweeper when it was in that area.
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 - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
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.