I have a class lexion 580r with a macdon D60S 35ft front and I cant get it to feed im currently harvesting oats in W.A and taking all the straw (very thick) its building up between the macdon feed auger and the class feeder house chain.. It builds up then goes in in lumps and blocks every time some times it throws it over the auger, I've done every thing I can think off .had class service people down and have had macdon service people down to, they cant fix it, macdon told me to put some stripper bars in so I did and made no difference at all, Has any body had this problem any help would be much appreciated, if any body has a CA20 Combine Adapter Technical Manual they can post up that would be great im looking for the Auger seting and how to make them and the drapper speed setting.. Thanks heaps Tim