Dan
Guest
I would want to stick with the wide rasp bars all the way across when you have the corn and edible beans. If you only had the wheat you may want to switch to narrow rasp over concave. If the rotor loss is from unthreshed crop making it all the way to discharge you need to true up concave to cylinder bars. Or run concave tighter to cylinder and if rear is allready at 1_8 inch you need to crank front up tighter one knotch at a time. If rotor loss is now acceptable and you still have white caps you need to install more filler bars in the concave. When replacing rasp bars we allways go with wide and I had thought some of our spring wheat varities were as hard to knock out as most anything. Here's a weird thing we have done before in an effort to use up some good narrow rasp bars. We have installed them narrow rasp bars in every other position as cylinder rotates. Couldn't say it hurt or helped in any way. Here is the most important first upgrades you should have done to your R72. Install feeder shocks, get third helical from gearbox extended over feeder opening corner, and extend the cylinder bars to discharge opening. If you find something else you are wondering about in the last few monthes of posts or remember something from the couple years of posts that we may have lost just ask. All the best.