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Posted by Michael Hernke [63.151.218.18] on Wednesday, January 20, 2010 at 15:39:25 :
In Reply to: Re: Thinking about PTOs posted by Dave Royal [76.182.149.93] on Tuesday, January 19, 2010 at 22:50:06 :
I broke the lever ears off the PTO on my M37 and I removed the cover with the ears and stick welded it back together with 60 series rod. The stick welding held for two years until I broke the winch case and decided to go to a smaller hydraulic winch rather than repair the pto winch. The weld still looks good and with a little paint is almost invisible. Not long after I stick welded mine I found some sticks at the farm store for cast iron but I never have tried them. For mig welding cast iron I think I would be more worried about slowing the cooling rate than pre-heating. I think much of the problems with cast iron have to due with the stresses created whent the part cools down. I have mig welded spider gears ( Lincoln locker or Miller max traction in my case) and had a lot of problems with cracking as it cooled, one I even heard the pop as it cooled.