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Help with broken IH 300U steering arm

M

Matt Williams

Member
I have an IH 300U that the steering arm broke on. See pics. The other side has already been welded so I know if can be done but if I could find a replacement cheaply enough I would buy it. (I am currently unemployed so money is tight) I can"t get the two pieces off the other but I did just get a puller so hopefully I cna get it off today or tomorrow. I am going to put a bit of heat to it. I banged the heck out of the lower part but all it did was deform the bolt! Hopefully I can recut the threads, course if I can get the other side off maybe I will just weld it that way and leave it as it is.
I appreciate all your help!
tractor1.jpg
 
wengers has a used one for the 300u, 61 dollars. check the case i-h website for the exact part number, but if its an early 300u up to serial number 26457, the part number is 361848r1. here is a link to wengers site.
poke here
 
To remove the tapers (both ends) use a sledge hammer to back the effort from one side of the forging, and strike the opposite with a 2 pound hammer (with force) this pinches the roundness of the forging and pops it off of the taper.
It will not harm the part at all. Using the puller at the same time is advisable. Our three fifty U has had a welded arm since I tore it off in a puddle with 3 inches of ice on it. When it broke through it wrenched the wheel over to the right snapping the arm. Good luck. Jim
 
What rod and technique did you use to weld it? I finally got the 1/2 on the tractor off but I am afraid I have irreparrable damaged the threads on the part in the picture. Guess we'll see when I try to put it back together.
 
I used 7/32 E-7014 and ground the ends of the pieces until there was a 3/4 inch long by 1/4" thick connection remaining. Then used DCSP with 140 amps, to make small hot passes 1/2" at a time on opposite sides to keep it straight. between passes I used a sharp chipping hammer to whale it till it was peened to relieve stress. Then put on the next pass and peened. Repeated until a concave fillet was at the surface. then peened and put it on. Chase the threads on the abused ball joint.
A thread file, or die will chase them and save the part. Jim
 
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