Adjust the tailboard fins. Check that the internal deflector fins are positioned correctly so that all residue will be evenly distributed across the width of the chopper. Single rotary combines must have the straw redirected before it reaches the chopper to accomplish even spread. In most cases, rowing results because the straw from the 2nd and 3rd fin from the outside, lays straw on top of that from the outside fin. Adjust these fins inward.  To get a good view of the problem it helps to stand on the back of the combine and look down at the chopper. 

Last updated on May 27, 2011 by strawchopper editor