You don't need to remove the feeder to do either one of those jobs. To renew the beater blades, just remove the short top cover of the feeder and work from above. To change elephant ears, remove the half-moon cover at front top of rotor behind the cover held on by two twist fasteners. It may help if you drop the concaves on the left side and have some one to help and hold bolts while you work on the nuts. I have done the job by myself without dropping concaves. If you are changing elephant ears, get a set of Marlin Blades and treat yourself to a smoother, easier running machine. These are available from loewen dealers. Be sure and use the same number of blades as you have now. CardaleBob