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R62 chopper knife removal?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=183108
Printed Date: 31 Aug 2025 at 2:38am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: R62 chopper knife removal?
Posted By: Leon B MO
Subject: R62 chopper knife removal?
Date Posted: 07 Sep 2021 at 10:55am
We have a new to us 98 r62. I need to remove a set of knives what's the best way to go about it? Through the very small hole while sitting inside the engine compartment?
Leon BMo

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Uncle always said "Fill the back of the shovel and the front will take care of itself".



Replies:
Posted By: victoryallis
Date Posted: 07 Sep 2021 at 11:20am
That’s what we do.

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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760


Posted By: farmboy520
Date Posted: 07 Sep 2021 at 2:24pm
If you lower the side shield above the unloading auger, there is another door the same size on the outside that can aid in the removal and assembly of the chopper knives. It's a pain no matter what but at least there is only 12 knives to do!

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On the farm: Agco Allis 9695, 7060, 7010, R66, Farmall H, and Farmall F20 (Great Grandpa's)


Posted By: Leon B MO
Date Posted: 07 Sep 2021 at 7:33pm
Sooo.... I tore into the chopper today, after getting in there I realized the bottom or floor was broken apart and missing several inches of the perforated grate. Letting lots of chaff into accelerator rolls. So took out both halves which made it "easier" to remove hammers. How the hell does one work on chopper hammers with just the "10 x "8 hole and the tiny "2 x "3 holes to remove bolts on left and right. One of the concave knives were bent over at a a 90 degree above the "bottom". That took and hour to beat straight enough to remove through the bottom. The "hammers" (knives) were in bad shape. Looks like 2 sets were worn on both sides, 1 set was bent, one set was chipped. I may be able to keep 1 set for emergency. Several bolts were wore 1/3 through because bushing was moving inside bracket.  $800 later, for bottom,($291), 6 hammer sets $85 each and concave knives,it should be good to go. 

I'm glad I tore into it. It would have given me trouble. But I have to say the L3 chopper is a lot more user friendly.
Thanks for the input and looking forward to putting her into some corn soon.
I may have some more questions on this ol gal as I get into harvest.
Leon B  MO


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Uncle always said "Fill the back of the shovel and the front will take care of itself".


Posted By: SteveM C/IL
Date Posted: 07 Sep 2021 at 8:56pm
I sorta knew it going in but the winter purchased R62 I have is quite pricey for repair parts compared to the old F2. However,I think once it's gone through it will out last me with few repairs so in the end it's a win.



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