A picture of that board would be great, I sure have to fix this thing this year lots of canola to do. I was just about nuts last year trying to set it. What bugged me the most is I could not get a clean sample at all, the versatiles right next to it (which also have distrubution problems) were getting it too clean and where throwing very little out, so I knew it could be seperated easy (no chaff weight problem). I could neither turn the air down until little loss, because once the chaff was on the sives it started "sluffing" it over, or turn it up and get a clean sample because of high loss, like seeds touching loss and yet chaff in the tank never did get a clean sample no matter how much wind. I know last year I was convinced there was too much air coming out the seperator duct and not enough through the cleaning duct. I don't remember what was happening with the return, I know when I tryed closing off sieve to get a cleaner sample loss went up so the must have been a lot of return. I know in canola you get more capacity with more open sieves and more wind but wind was the problem more wind more loss, turned it down loss seemed to lower then loss increased (chaff riding on chaffer). Then I put the air up to where I figured I has as little loss (still to much) and tryed to set the bottom sieve to clean it up but no setting would get it clean. I'll take a lot of chaff in the tank if I am losing little, but when its kicking grain over too that bites. last year was the first for a N7 I really like the combine runs nice mechanically sound. Did you try closing down the seperator duct to get more air through the sievesIJ Also how do you tell your accelerator rolls are wore or wore out and will you see that kind of improvmentIJ It also has an aifoil sieve. Thanks for any info! Man lots of wind in this message!
