Combine Settings for Varying Cob Sizes

by Lucas Veale, Assumption, IL 

Harvest is in the beginning stages in Central Illinois.  Corn moisture has been all over the board, as have yield averages.  In the lower lying areas where water stood for longer periods of time, much of the crop died and moisture is as low as 15%.  In other areas where yield is quite good the moisture is higher.  Some corn is still well over 25%.

In some fields the yield variation is quite extreme.  In situations like this it can be difficult to set the combine to an optimum setting because you will have drastically varying cob size.  One thing to try, is to close your concave as tight as you can, but not split the larger cobs.  The other thing to try, is to speed up the combine ground speed in the lower yielding areas to make sure you keep it full to take advantage of grain on grain threshing.  Don’t forget to check out our app or for all of our help videos this fall.  You can download the app here.  Have a safe and successful harvest.
Sloan Support is written by the product support team at Sloan Implement, a 20 location John Deere dealer in Illinois and Wisconsin.   Learn more at

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