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Discussion Starter · #1 ·
have 9670 with john deere 612c head, in 28 to 30% corn and its grinding into meal, tried a bunch of different settings but no luck. is there something i have to put on the combine or is there a solution to this?


thanks
 

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Put less aggressive strips on the feed accelerator, and slow the rotor down to 300-320. Try running a slower rotor speed with a tighter concave setting. If you get the concave to wide, the crop will not flow smoothly and sit there and be subjected to more rotor contact.
 

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Started corn today with the exact same setup. Moisture was a steady 29% and got along pretty good with rotor at 320, concave at 29. Besides everything mentioned, I also have the seperator grate spacers in. I think every machine is gonna have some fines though with this awful wet stuff. Sure does take some power, limited to 3.2 mph at 2200 rpm.
 
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