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Allis Chalmers Discussion Forum
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Re: Allis Chalmers 175 hydraulic shaft repair.

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Author  [Modern View]

10-10-2013 13:41:53

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I will address your question as if this tractor were mine.

1) First, I would try to find a good used one, which maybe hard to do. If I could not the next thing I would do is this…

2) I would start getting pieces to make a new shaft assembly. I believe a shaft assembly 12-13” long is available on the market (Surplus center) I would turn down this shaft to duplicate the original.

3) The center hub that mounts on the crank, I would bore/mill out the center and buy a 6 spline weld center and repair the splined part. This piece will need to be carefully welded in place to assure strength. I may also opt to find that piece used since it is critical as the drive unit.

There is also the option provided you could find the 6 spline broach of making the hub piece completely new from 4140 pre-hard or similar steel.

P.S. you can not whave the spline area welded to the hub the crank needs a little play that the spline provides. Its better to copy what you have.

just my thoughts

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TJ in KY

10-10-2013 17:24:14

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 Re: Allis Chalmers 175 hydraulic shaft repair. in reply to Brokengun, 10-10-2013 13:41:53  
I thought the shaft may need to float in hub. I was able to locate a shaft at a different AGCO dealer. Looking to maybe bore out hub as you suggested.
I also got some other ideas on the tractor talk forum as I posted it there.

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