Farm Equipment - Belly Mounted Sickle Bar Mower

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Belly Mounted Sickle Bar Mower

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=180510
Printed Date: 02 Jun 2025 at 1:18pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Belly Mounted Sickle Bar Mower

Posted By: jstamets
Subject: Belly Mounted Sickle Bar Mower
Date Posted: 13 May 2021 at 8:56am

Hello all!

I have a belly mounted sickle bar mower for my Allis C. I took the old knives off and replaced with new knives. Somewhere in the process the bar on which the knives are attached was bent and now will not fit as it's supposed to.

I'm going to try straightening it, but if I'm not able to do that, can that bar be replaced with any brand/model? Is the width and hole spacing fairly standard for sickle bars across brands?

I appreciate any info you all might have.

Thanks,

Josh

Replies:

Posted By: steve(ill)
Date Posted: 13 May 2021 at 9:46am

there are 2-3 different standards on the bolt spacing... You will need to find one that is correct.

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Like them all, but love the "B"s.

Posted By: john(MI)
Date Posted: 13 May 2021 at 10:44am

I did that. Slide the bar in as far as you can, then bend it to straighten it a little and push it in some more. Keep doing this and it will eventually go all of the way back in and work just fine.

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D14, D17, 5020, 612H, CASE 446

Posted By: Walter(MO)
Date Posted: 13 May 2021 at 11:11am

My dad tried to bend one straight but the bar broke at the bend. You would have nothing to lose if you broke the bar.

Posted By: Dusty MI
Date Posted: 13 May 2021 at 11:28am

Anyone remember when all those knives were held on with rivets?

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917 H, '48 G, '65 D-10 series III "Allis Express"

Posted By: steve(ill)
Date Posted: 13 May 2021 at 12:40pm

If the bar was OK to start with and after you installed the new knives ( maybe with rivets?) you BOWED the bar, then yes you can BOW it back the other way.. If it has a KINK in the middle, thats a different story.

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Like them all, but love the "B"s.

Posted By: jstamets
Date Posted: 13 May 2021 at 1:07pm

Steve,

Yes, I believe that's what happened. I'd love to say it was like that when I got it....

It's not kinked and it should be able to bend back. I'm going to give it some more effort this evening.

I appreciate everybody's input.

Thanks,

Josh

Posted By: steve(ill)
Date Posted: 13 May 2021 at 3:08pm

You need to "BEND" it in 20 different spots, just a little in each spot... Slide it into the frame and John said and push down a few inches to "BEND" it, then go in 6 inches and do it again.... Or you can set it on a couple bricks at each end and stand in the middle with your feet a couple feet apart... Dont KINK the bar, just small bends.

It is not uncommon to BOW a bar when you are beating the rivets down on new cutters.

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Like them all, but love the "B"s.

Posted By: Gary Burnett
Date Posted: 13 May 2021 at 4:49pm

Wish you were closer I have a couple dozen of the 7ft AC sickle assemblies around here I'd give you a couple, just cut it to suit your needs.

Posted By: JoeO(CMO)
Date Posted: 13 May 2021 at 8:21pm

Dusty-Yes, replaced many sections.

I seem to recall most AC's were 3 inch