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concave in a 72 All Crop Harvester


 
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riverbend
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Joined: 13 Aug 2003
Posts: 2055
Location: Delano, Minnesota

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PostPosted: Sun Jul 18, 2021 3:47 pm    Post subject: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

I bought a concave from Tom Yaz a few years ago and now my AC 72 All Crop needs it. There is not a lot of information on the allcropharvester.com site about how to do the job. Figuring out what to take apart and how to do it looks like the worst part. Has anyone done it ? Any advice ?
Thanks
Greg
 
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560Dennis
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Joined: 10 Dec 2015
Posts: 775


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PostPosted: Mon Jul 19, 2021 3:33 am    Post subject: Re: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

I got that same combine , I havent done that job , I think its an excellent post . Im hoping for reply also.
 
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dbrase
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Joined: 10 Oct 2017
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PostPosted: Mon Jul 19, 2021 9:36 am    Post subject: Re: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

I replaced the concave in a 66 last summer. Quite a task. I removed the feeder apron and all the cylinder bars. The rivets that hold the concave in are the hardest to remove. Took about a week to complete.
 
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riverbend
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Joined: 13 Aug 2003
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Location: Delano, Minnesota

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PostPosted: Wed Jul 21, 2021 6:30 pm    Post subject: Re: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

It looks like you are the only guy who has done it.

Apparently there is enough room to get the new concave in once the cylinder bars are out of the way. Why did you decided to remove the remains of the old concave rather than lay the new one over the top ? If you did it again, would you do it the same way ?

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Greg
 
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Richard G.
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Joined: 08 Oct 2000
Posts: 14631
Location: Oakway, SC

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PostPosted: Thu Jul 22, 2021 7:44 am    Post subject: Re: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

I helped my uncle do that many years ago.
All I remember is that it was a hot job that day.
I rebuilt the cylinder and put concave in an my AC 40 a few years ago.
 
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dbrase
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PostPosted: Sat Jul 24, 2021 4:14 pm    Post subject: Re: concave in a 72 All Crop Harvester Reply to specific post Reply with quote

I left the very back of the old concave in place. the rest was full of holes and I didn't think the new one would lay flat. A lot of tin and duct tape had to be removed too.
 
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