wgbiii said:
			
		
	
	
		
		
			Please help!!!!  I have a JD 4400 in which I have broken the casting for the 3 pt hitch on the frame.  Can this be successfully welded?  I'm not sure if it is cast iron or cast steel.
		
		
	 
Being an axle trumpet.. I'd have to guess cast iron.
That's going to be a dicey repair if it is a lower lift arm hitch point.
Best I can say is to agree witht he others.. .. try having a GOOD welder weld it up.. and perhaps take a piece of 1/2" rebar or cold roled, bend/contour it around the welded up piece, and stitch it in as a gusset .. have the rod overlap the good areas as much as possible.
Hopefully you won't get heat distortion if the welder is worth his salt and the stars line up for you.
Might need a rebore or re-align o fthe pin.. but maybee you will get lucky.
If you were froddy.. i think I would even take a hand file tot he insides of the holes v-cut them. and weld up the sides and ID, then file back down.  Will be a bit extra hand work.. but will add strength.
I'd look at adding some flat and stitch it over the joined sides.. or at least good layers of tie in weld anyway.
Hope the trumpet doesn't have any seals right at the weld point .. or at least if it does.. the oil heat sink sit ok.
Also.. you may want to price the axle trympet and associated seals and bearings and just see what you are up against.. some GOOD welders charge decent mulah for this type of repair.. especially if there will be align boring onthe pin mount afterwards.  If the repair was withing a couple hundred of the new part.. I'd have to think that one over before comitting to either..
Good luck.
Post a pic of the good side.. also.. any idea of how it broke would be helpull..
Soundguy