Ford 445c Broken casting for lower top link

   / Ford 445c Broken casting for lower top link
  • Thread Starter
#11  
My current thoughts.... I am concerned about welding on the tractor without disassembling at least the PTO. What about the differential inside the case, surely I would not get all that steel hot enough to damage it? Prolly not good for the 12 gallon of fresh oil in the case either!

If I caught 3 trumpet housing bolts on each side, and with half inch plate, would that be strong enough? My other option is to run tubes dow to the draw bar assembly below to stiffen the structure.

Thinking to run 1/2 plate basically around the bracket like below. Left to right: Catch 3 or 4 housing bolts on each side. Run 1/2 in plate next to the center housing with a bend for stiffness and a notch around existing welded on lower pipe. Then run a plate back on either side with holes for the pin (have to be a longer pin ) and then tie them together behind the bracket. The bracket between the pins will still be installed from the top. I know this is a pretty rough picture... but with gussets I think I am in the ballpark... or maybe I am overthinking it. I do have access to a well equipped shop. ! Screenshot_20200114-194302_Gallery.jpg
 
   / Ford 445c Broken casting for lower top link #12  
My current thoughts.... I am concerned about welding on the tractor without disassembling at least the PTO. What about the differential inside the case, surely I would not get all that steel hot enough to damage it? Prolly not good for the 12 gallon of fresh oil in the case either!

If I caught 3 trumpet housing bolts on each side, and with half inch plate, would that be strong enough? My other option is to run tubes dow to the draw bar assembly below to stiffen the structure.

Thinking to run 1/2 plate basically around the bracket like below. Left to right: Catch 3 or 4 housing bolts on each side. Run 1/2 in plate next to the center housing with a bend for stiffness and a notch around existing welded on lower pipe. Then run a plate back on either side with holes for the pin (have to be a longer pin ) and then tie them together behind the bracket. The bracket between the pins will still be installed from the top. I know this is a pretty rough picture... but with gussets I think I am in the ballpark... or maybe I am overthinking it. I do have access to a well equipped shop. !View attachment 637071

I like your suggested fix. Should be very strong.
 
   / Ford 445c Broken casting for lower top link #13  
Yep, same setup as on my 3910.

How do you think it got that way? Maybe with a BB on blade on the 3pt and hooking a chain to the attachment end of the top link to pull with? I don't see anyway you could break that in a lift situation.
 
   / Ford 445c Broken casting for lower top link
  • Thread Starter
#14  
I wish I knew what the previous owner did to break it. The left side lift link, between the rocker and the lower tug arm has also been welded. I suspect that when it broke under high load, there was a twist or side shift of the implement that caused it to break. But that is only a guess

Dan
 

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