In Reply to: HELP - Threshing Problems - on new 8780 posted by Kidd Farms on August 23, 2000 at 13:35:32:

You might not be keeping the combine full. Try slowing rotar speed to 850-900. This keeps the material in the combine longer. I own an 8780, and I use 2 concave blanks and I recommend an air foil chaffer and windspeed about 750-800. I have found running rotar at maximum speed sometimes has the reverse effect; and remember, rotaries run best when they are full.