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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Board

Re: 266 vs 568 plow difference?

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Posted by B A Star on October 30, 2013 at 14:07:46 from (

In Reply to: 266 vs 568 plow difference? posted by Jim Stordahl on October 30, 2013 at 12:28:12:

   The 568 plow as compared to the 566 is quite a bit heavier in certain areas.  The 568 plow was available from 4 bottoms to 8 bottoms.  The 566 plow width of cut per bottom can be assembled to cut 14" or 16".  The 568 can be assembled to cut either 16" or 18".
   The hitch is a different design that is not as adjustable.  It is much stronger with a beam that goes rearward and attaches near the backbone.  One of the concerns with the 565/566 hitch was that it was too adjustable, thus operators attached it too low causing failures.  Main backbone could be either be 4 or 5 bottom with 1 bottom or 2 bottom extension.  The tail wheel was either controlled by a front mounted cylinder or a cylinder mounted at the rear, a 5 bottom probably had the cylinder at the front.  The 565/566 plows were introduced in 1963, the 568 in 1967.  An operators manual is available from the Floyd County Museum in Charles City, IA.

   Anyway you look at it, OLiver had the best plows and produced more than all other makes.


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