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Case 580SM King Pin Bushing Replacement

B

blueacre

New User
I pulled the king pins on the front axle of my Case 580SM 4WD Backhoe to replace the U Joints.

While I have the king pins out to remove the steering knuckles and get access to the axles and U Joints I decided to replace the king pin bushings.

The upper one looks lie a straight bushing pressed a blind bore in the ear on the end of the axle. It feels like there is a gap at the bottom of the bushing that I should be able to get an internal puller in.

The lower bushing is a 2 piece spherical arrangement with one half pressed inside the bore in the ear on the axle housing. The other mating piece is pressed onto the lower king pin. I dont feel any gap at the top of the internal bushing in the axle to be able to get it out with a puller - it is a blind bore so cant drive it out from the top.

Any suggestions on the best way to remove it ???
 
When you stated that your 580SM, I took it for granted that it was a series 1 as I had missed where you said you had the 4 bolt king pin which makes it a series 2, there is no shims on those, the way to get a bearing from a blind hole if you do not have the puller is run a bead of weld around the inside of it, that causes it to shrink and it can be prised out, no need to worry about shims, just put it together and grease it.
AJ
 
(quoted from post at 14:29:51 03/08/22) When you stated that your 580SM, I took it for granted that it was a series 1 as I had missed where you said you had the 4 bolt king pin which makes it a series 2, there is no shims on those, the way to get a bearing from a blind hole if you do not have the puller is run a bead of weld around the inside of it, that causes it to shrink and it can be prised out, no need to worry about shims, just put it together and grease it.
AJ
Click to expand...

thanks for the info AJ
 
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