Opinions expressed here are MY OWN. This is a throwaway account for obvious reasons. Trade marks and trade names contained and used herein are those of others,Hey all, I worked on software for John Deere. John deere and it's successors are not responsible for the quality or accuracy of this manual. Without the authorization of john deere or it's successors. John deere model: 310 loader backhoe this is a manual produced by jensales inc.New engine adjustment procedures. Updated engine repair procedures and specifications. New information added to this manual includes: 1. Discard TM1475 dated (01MAY92) and replace with this manual. Standard features included an 12HP Kohler Engine, 4 speed gear transmission, 3.5 gal fuel capacity, 2WD, and a 38' or 46' mid mount mower deck.JOHN DEERE DEALERS This is a complete revision for TM1475F510 and F525 Residential Front Mowers. The John Deere 212 Garden Tractor was produced from 1975-1987 as part of the 200 Series.Now, when I say OEM integration, I mean suppliers and other John Deere divisions with their own teams mirroring ours. The team I was on, consisted of about 8 very senior engineers, and I think there were around 20 total engineers working for ISG at the time (though I saw, and knew only a handful of them). The ISG division (was at the time) responsible for tying together various software built by OEM's, for building the central UI within the cabin, and for building various debugging and build tools. Specifically I was part of John Deere's ISG division also known as the Intelligent Solutions Group. 4.I was part of one of the many teams that work on this software.
John Deere Drive Green Unlock Code Serial Number I YearI have worked in software for 20 years. Serial Number Location: Left side of the Transmission case, under the governor Paint Information and Codes Serial Number I Year Color Location I MFG Color Name 1000 1935 Wheels & Rims Classic Yellow 12012 1936 Body Classic Green 27389 1937 46175 1938 Make: John Deere Model: BLet me disabuse you of any myths. Precision Ag Controller:Yes Controller Model:Green Star Signal Unlock Code:WAAS Precision Ag Receiver:Yes Receiver Model:Starfire 2in the John Deere A, the design of the tractor is the same.Production and release cycles take on the order of months to ensure that we don't kill people.From Small Yards to Large Ag, weve got you covered for all your John Deere Agriculture Equipment needs. Submission of any new code was seriously considered and reviewed before it entered production (sometimes to a pedantic degree), after which JD put all new code through 10s of thousands of hours of testing on production equipment. This software is by FAR the largest, most complex codebase I have ever interacted with. But trust me on this, locking this down is a very good idea.If you have the drive to make open source tractor software AND can make absolutely certain no-one ever dies from code you write, then go do it. Hell, John Deere tractors run on open source software. If a team of hundred of engineers struggle with their codebase internally, Joe Farmer isn't going to have a fucking clue how to repair their software correctly.Now should you, in theory, have the right to modify equipment you own? Sure. They have a real potential to end peoples lives in the event of failure, and these tractors do (in testing) fail in spectacular ways. They are 30-ton combines, and 20 ton tractors tilling fields, with massive horsepower behind them. Replacement program for adobe iluustrator macI'm astounded by the fact that JD takes no responsibility for updating software till end of life of the tractor.Yes, but not in the sense you suggest. They just want to do their jobs. And if they fail, good luck trying to find a replacement that is not 100x overpriced because it has been discontinued one year after you bought it."The problem seems to be that the process of updating software (a) takes too long (b) is too expensive (c) sofware is not updated once the tractor has been sold.In an ideal world, where such a break down can be instantly fixed by JD for a reasonable fee, and JD actively updates the software on the equipment they sell till End of Life, this problem wouldn't exist.Farmers don't care about open source etc. When you are in rush to plant or harvest you just can`t afford to wait for an authorized dealer. Schwarting worries about being broken down in a field, waiting for a dealer to show up with a software key.""Plus, many of them don't get any update after the product launch. ![]() If there are hardware limiters, interlocks, etc adding redundancy to the software check, the risk should be no worse than repairing any other dangerous machinery. Anything that dangerous needs to have defense in depth. In my defense, before getting into the software industry, I grew up working on a farm, and as a result am a bit reactionary in the face of any sort of "I'm a big bad developer, these guys are glorified lawn mowers who need to be protected from themselves." lines of reasoning.Edit: I have hopefully fixed all of the places where I incorrectly parsed "worked on software for" as indicating employment.> They have a real potential to end peoples lives in the event of failureI hope the lessons learned from the Therac-25 are part of the design. Just keep in mind the considerable imbalance of power between JD (and its engineers) and their farmer customers - particularly in these types of debates.Edit: upon reading my submission, I came off as a bit of a jerk, and for that I apologize. I realize embedded dev work in safety critical applications is not so easy, but I nevertheless feel like you're dramatically overstating the complexity.I'm sure the engineers on these projects are veritably concerned with the safety of their customers, and I don't mean to suggest otherwise. I can imagine there are some rather complicated hardware engineering efforts involved, but I'm skeptical that the software component would require anything beyond the skills of an enterprising group of skilled undergrads. The big complaint about JD seems to be them using software constructs to prevent fixing tractors or common extensions. Even in my constraints, the systems are designed so the parts can be replaced without magic software. High-assurance security where input or environment might be malicious. The only reason it is involved at all is because John Deere the company) chose to add the dependency.Hey, I do high-assurance systems too. The very existence of tests failing in "spectacular ways" is evidence that bugs do exist in the software.I'm not aware of anybody that suggested they were.> They are 30-ton combines, and 20 ton tractors tilling fieldsYes, just like the older combines and tractors that didn't require complicated software.> Joe Farmer isn't going to have a fucking clue how to repair their software correctly.This, really, is the key point: the farmers in question *are not trying to repair the software. I'm amazed at the hubris of thinking it's even possible can guarantee a software project large enough to requires a couple hundred engineers that maintain "the largest, most complex codebase have ever interacted with". ![]()
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