Broken Gang Bar on JD Harrow......

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Had to go out and repair this today.  It's a broken gang bar on a John Deere Harrow.  JD actually Screwed the pooch so to speak when they designed this thing.  I make a good living though putting them back together during certain times of the year.  Anyway 3"x5"'1/4" tubing had to cut it back between the mounts, and lengthen enough to weld the hinge joint back on...........I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:Cut a new piece to splice in, and removed hinge from old tube.  Beveled ends of tubing and welded in with 1/8"  7018 at around 135.I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:Clamped it up and tacked the new piece in straight, and then welded up, and plated the sides with a little 3/8" plate.  Then after a couple hours putting it back together and he's ready for a few more thousand acres.......Until next time......   ~JacksonI'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:And there you have it my friends! Field repair at it's best..Don't you just love Sunday "I need it NOW" jobs?... ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Another professional job.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Beautiful job.  Why did you have to cut that mount off and reweld it?  I am confused on that part.
Reply:Looks kinda like a small disk for a 200 hp tractor.  Nice work.
Reply:Nice job there!City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Originally Posted by WelderBoyBeautiful job.  Why did you have to cut that mount off and reweld it?  I am confused on that part.
Reply:It didn't look like it was much over 18' in the pictures, the wings aren't very big and the one with the tractor it didn't look like it was much past the duals.  24' is a good workout for a tractor that size around here, we have clay, gumbo and some sandy stuff but it's probably not as heavy and hard to work as that red stuff you guys have.  The repair does look good, I'd call you when ours breaks but I don't think it will be cheap to have you come to Illinois.
Reply:Real nice looking repair. It seems like all farm machinery has a place or two like that, if they had thought about what they were building and the forces involved it might have been built a little heaver.I,ve done a similar repair on Krause brand disc's and also on the tongue of a gang hitch to pull two JD 750 drills. I'm going to have to start carrying my camera.
Reply:Originally Posted by Hammack_WeldingBirdhunter, its a 24ft  down here in southwest Georgia we pretty much farm all in red clay, and it takes a lot of hp to pull tillage equipment thru it.  A 24ft is about as big as an 8420 wants in good dirt around here.  Some areas here who have a loamy or sandier dirt can run as big as 32ft harrows with the the same 8420.  It all has to do with the soil type around here.   ....  ~Jackson
Reply:Originally Posted by shortarcIt seems like all farm machinery has a place or two like that, if they had thought about what they were building and the forces involved it might have been built a little heaver.
Reply:Tanglediver, what you doing over in Bainbridge?  I'm actually only about 45 miles north of Bainbridge.  You are right.  It's mostly Pine trees and crop land around here.Olddad, you're right they definitely figure in life expectancy.  They build a good product, but the only thing that gripes me about John Deere is they always seam to weld brackets straight across the side of tubing and it creates a weak link when it would not take alot of planning or money mount the brackets a better way. However I guess that's what I am in business for.I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:my dad owns tractors and does repairs like this everyday , next break im going to get some pictures .  good job there hammack. in australia we use ennor discs  as they are built tougher
Reply:I'm not there now!   I went with some buddies from my unit while stationed at Ft. Gordon many years ago, Iggies brother was a pine farm expert. City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Great work Jackson, unreal field repair - precision.John -  fabricator extraordinaire, car nut!-  bleeding Miller blue! http://www.weldfabzone.com
Reply:Perhaps someone can confirm something for me.  I've heard that "some" manufacturers will put cuttings, slugs etc into the cavities of tool bars to add weight, etc and seal then them.  The oil on those cuttings breaks down into it's basic hydrocarbon components, one of which is hydrogen.  Given that, over time is it possible to get enough hydrogen inside the sealed tool bar to present an explosion hazard if it's drilled, welded or punctured?
Reply:Sounds like a baroom story to me...although I am not/can't say that it isn't true.Anything worth doing is worth doing RIGHT
Reply:I've never seen that on any equipment I have worked on but I'm not saying it doesn't happen.  Normally most manufacturers of equipment this heavy will make a product heavy enough on it's own to weight it down, but some manufacturers of smaller equipment use thin steel that and make a prodcut so lightweight that you can almost pick it up and load it in a truck with one guy.
Reply:Of all the equipment I have worked on, I have never seen a tool bar filled with anything.  I guess it could happen, but I've never seen it.  Even if it was straight steel slugs in the tool bar then I would not be concerned about it.  If that theory holds true then any sealed steel vessel would be at risk of exploding if heated, etc... from the interior steel wall breaking down as you describe.   I would think that it would be easier and cheaper to just build it heavy enough to start with....I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:ive never seen a tool bar filled with anything either . build them strong and wont need any extra weight .
Reply:Great job my friend!My Babies: HF Drill pressHF Pipe Bender3   4.5" Black and Decker angle grindersLincoln Electric PROMIG 175that´s it!
Reply:Originally Posted by FANSPerhaps someone can confirm something for me.  I've heard that "some" manufacturers will put cuttings, slugs etc into the cavities of tool bars to add weight, etc and seal then them.  The oil on those cuttings breaks down into it's basic hydrocarbon components, one of which is hydrogen.  Given that, over time is it possible to get enough hydrogen inside the sealed tool bar to present an explosion hazard if it's drilled, welded or punctured?
Reply:Thanks for that post RoadWarrior.I understood the problem to be the creation of hydrogen gas, caused by the breakdown of the oils, etc on the waste that was put in the tubing.  Think Hindenburg on that one.  Drilling or cutting would cause enough heat or sparks to generate a flame which would burn quickly through the enclosed space.  I guess it's enough to think about if you're cutting on a "closed tube" product.