Combines 9600 poor sample

hey poor yeilds 20-30 is avg for us we usaly get a max of 70 on oats some 100s on good and but very far and few between our flax ran 4 bu_ ac i just cant stand it when ppl are complaining about poor yeilds when there poor yeilds are always over our good yeilds hope i dont tick off any one off with this but im just saying i wish we had 20_30 bu_ac all the time mark

check to see if the bearing on the fan speed adjusting shieve is not gone. had this happen to me on 9600. sample was dirty cause couldnt get enough air to it. if you increase the fan speed all the way and the monitor indicates the rpm is at its rated top speed, then that is not the problem. then make sure your pre cleaner is closed all the way tight and there are no holes there. other than that it can only be cylinder or sieve adjustment.