Farm Equipment - Rotary Mower on a B

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Rotary Mower on a B

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=51322
Printed Date: 24 Aug 2025 at 11:06am
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Topic: Rotary Mower on a B

Posted By: rrambo
Subject: Rotary Mower on a B
Date Posted: 30 May 2012 at 1:43pm

How big of a rotary mower can a B comfortably handle? I'm thinking 48" but was wondering if a 60" is too much?

I've seen my dad do some crazy things with his old 8n over the years so I know that these old tractors can/might handle more than they are rated for.

I'm hopefully about to buy some land (crossing fingers) and it will need a lot of cleanup work.. mostly tall weeds, bushes, etc., and I'm looking for a used rotary mower to use behind my B once I get it running.

Replies:

Posted By: Dakota Dave
Date Posted: 30 May 2012 at 3:40pm

It will handle a woods L59 or L306 without any problems. an L59 is 60 inches and a L306 is 72". I have a L306 on a C. has the same engine as a B and never have a problem. if your wanting a Brush cutter than down size. I'd still go with a 60"

Posted By: rrambo
Date Posted: 30 May 2012 at 3:48pm

Thanks.. I need to do some heavy brush cutting.. that is if I even get this property I'm trying to buy.. about 10 acres of heavy weeds, small brush.

Posted By: Bill Long
Date Posted: 30 May 2012 at 4:35pm

I would consider a 48" blade. Why, in not heavy work the B can handle 60" but in what you suggest you are doing I would stay with 48". Don't forget an overrunning clutch. With a mower with that big of a blade they can "push" the B.

Take good care of my favorite.

Good Luck!

Bill Long

Posted By: Dean (West MI)
Date Posted: 30 May 2012 at 5:04pm

My B runs a 3-point, 60" rotary mower, works great!

Posted By: Hubert (Ga)engine7
Date Posted: 30 May 2012 at 6:12pm

For heavy cutting a 48" with an over run clutch would be right for a B. Light cutting it will handle a 60" just fine.

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Just an old country boy saved by the grace of God.

Posted By: norm[ind]
Date Posted: 30 May 2012 at 6:55pm

we have sold more L306,S THAN L59,S if set up correct it will slip belt before pulling the engine my 2 cents since 1990