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Allis Chalmers 175 hydraulic shaft repair.


 
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TJ in KY
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PostPosted: Thu Oct 10, 2013 11:56 am    Post subject: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

This is on an Allis Chalmers 175 diesel,
Does anyone have a fix for this hydraulic driveshaft from the engine crank to the hydraulic pump. I was concerned it was going to be expensive BUT it turns out the flange with isolation dampeners and the shaft, pto splined on one end, are no longer available at my local AGCO dealer
I am looking for ideas. I thought about having it bored out and new shaft made and welded to the hub, but I don't know how true it would run after welding.
Looking for ideas from any body that has done this repair or any machinist with ideas about retro fitting this hub and shaft.



 
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Skyhighballoon(MO)
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PostPosted: Thu Oct 10, 2013 12:30 pm    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

Call Tracy Martin at Martin Machine & Tool Co in Gallatin, TN. 615-230-6210. He just went thru this on his 175 and he's a machinist. Good luck. Mike
 
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Brokengun
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PostPosted: Thu Oct 10, 2013 12:41 pm    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

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
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PostPosted: Thu Oct 10, 2013 4:20 pm    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

Thanks for the tip, I will give him a call tomorrow.
 
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TJ in KY
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PostPosted: Thu Oct 10, 2013 4:24 pm    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

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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DiyDave
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PostPosted: Fri Oct 11, 2013 3:27 am    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

If it's a 3/4" -6 spline connecter, search google, I found this on
Ebay, while looking for something else, search
masontractoronline(Ebay seller name) part # 54C2055. Hope it
helps.
 
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greygoat
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PostPosted: Fri Oct 11, 2013 6:31 am    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

See my previous post on "Tractor Talk"
A parts source is G & G gear, at www.ggmfg.com
they sell splined inserts, splined shafts, by the
foot, chain couplers !
 
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Jim Phelps
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PostPosted: Fri Oct 11, 2013 10:29 am    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

I assume you are in Kentucky, I do not have the contact information but the Boarman Brothers near Utica Ky are really good at working on Allis Chalmers if you need someone.
 
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TJ in KY
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PostPosted: Mon Oct 14, 2013 6:16 am    Post subject: Re: Allis Chalmers 175 hydraulic shaft repair. Reply to specific post Reply with quote

Project is on temporary hold for now, I am in hospital right now. Nothing too serious, just going to be out on commission for a few days.
 
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