That's a very good piece of advice. We had to remove the rotor to replace one half the rotor cage and fix two broken transport vanes, and while we had it out we put on new rasp bars, elephant ears, and a complete set of vanes. Look the feeder house over as well. We ended up replacing the stripper plate things on the feeder chain sprockets, and I believe we replaced the sprockets.
Anyone have any tips for getting the rotor back in? We did it using the AgKrane (don't have an actual forklift) to lift and support the rotor from the front, and a come-along hooked to the back to pull it on through. We got it, but not without considerable frustration.
If you have to replace the elephant ears, put the after market AFX head on it instead of the ears. If your cutting small grains or soybeans it will make a huge difference in how the machine feeds.
If you can find a fork lift, make an installing piece out of square tubing welded to a piece that will slide over one of the forks. You can tilt the fork and slide the rotor back in with out a much of a problem. It is a lot easier than trying to drag it back in with a come-along. I will try to get a picture of the piece the local dealer uses.