NDDan
Guest
First be sure you checked the basics. If you have corn varible be sure proper gap between sheaves. Be sure tention springs for front chain are at 5.1". Be sure rear chains are 5.1" or less for 3 strand systems. We tention rear to 4.9". New four strand chain system calls for 4.9". Be sure no corn strippers are fastened under square tube in front feeder. Remove corn stripper from rear feed if installed. Do you have rock sump systemIJ I don't like that system unless you are sure to pick rocks. I prefer rock door system with hump fastened to it (this helps maintain good feed and fair to good rock portection). Next especially if it is the rear feed jumping I would remove Gleaner helical filler accross feeder and replace with loewen (or modify existing by cutting away material blocking material that is coming up left side of feeder). A step or two beyond a helical accross feeder that don't block the flow is some degree of steep pitch helicals to prevent material from coming back over feeder area. Now the best improvement you could make to feeder is install my feeder floor kit which creates a very smooth transition between front and rear feed. As far as drum stops I think you would be best to set stops so chain clears floor by about an inch and then be sure block it set to allow maximum lift. You can figure this by looking how they have the offset in drum stop block. It's hard to explain how to set your blocks now for the various demensions of blocks for different size drums. I just see that I clear the floor by about an inch and then have set for maximum lift. If you manually lift drum with pry bar I like to see about 2.5" to 3.5" inches clearance from chain to floor under drum. I would imagine you are cutting wheat with straight head. Are you cutting on the groundIJ The lower you cut the worse the transition between chains. This can be corrected. I dare bet the problem with your feeder would be no different with the smaller machines. let me know what you find out and I'll try guide you the right direction.