Paul after reading what you posted, I am going to take a look at the hydraulics, but it seems the cylinder end is slot shaped meaning it's got plenty of free end play, basically there are 2 on each side to raise up the outer gangs for transport. You made a good point with that, maybe I missed something there too. I've raised and lowered this 637, folded it up, and while watching that cylinder near the repair area, seems like it's got free play.
I also think I miss classified the steel, it's mild, but A36 I think, I spoke to my friend who owns a good size steel fab shop, he is fabricating a new 1/2" angle for me, seems everyone knows each other on this deal here, he actually borrowed my friends late model 7420 JD for his wedding arrival, they polished it and waxed it up for an opening parade, he says I can't charge this guy for the steel, so I got an extra piece in case we have another failure. I thought that was too funny, the other day the guy who charged $3000 to repair his (farmer) '90 3/4 chevy, trans and other work, charged him $10 to adjust/fix the trans linkage, come back work, some people are just bad like that, good to see someone remembering a favor like this.
I'm headed back to his shop to get the steel, then to the farm to complete this repair, I will take some photos and make an additional post, so all can see the problem area, though I took a photo with my phone, of the 2nd time it failed, both fractured, don't have the cable to upload.
Well I think tear is a better way to put it, I don't think it was embrittled, but possible near the welds I suppose, then kept tearing further, would not have been but a few more acres and that sucker would have had to been chained up to get it home. I think if it was brittle, with all the rocks, and rough terrain, and soils, it would have come right apart, but I ain't no expert either, hate seeing this expensive rig getting tore up, had to be $20-$30k new.
One of the fractures/tears, I welded both sides with 7018, heat turned up, almost flat weld profile, no sign of embrittlement or failure, steel angle failed in new areas 2nd time.
I think some photos are in order, hard to describe without, but I just can't seem to figure what in heck is putting so much stress on that side, someone here might see something I am missing, will be back later with a 2nd post on this, time to go get er done !
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