Combines cause of rotor loss

[R_O_M]

losses are often in the eye of the beholder! Individuals have vastly different ideas on what are acceptable losses. Some demand no grains on the ground. The more pragmatic trade time against losses, working on the theory, the first loss is the least loss. Different machines _ makes in the same paddock can give completely different results, depending on setup and suitability to the crop conditions. And then there is peer group pressure! An after harvest rain and the paddock with the sheet of green, or the thick green strips or the paddock with no green what so ever are all commented on by the passing farm fraternity. We should all use the quad [ 1_10th of a square meter for us in Oz ] and count our losses to get a definitive figure BEFORE we start waving our arms about losses. Hog Man, you may have a machine perfectly set up for your conditions and crops. The best of luck to you! We ourselves believe in the thin and fast flow theory thru the machine. The thin mat of material does not hold grain like a thick slow moving mat or so we hope! Cheers.

 

[Bill]

I can't really say much about losses from a 62, BUT, if you don't hyperize a 52 it isn't any good at all. I went 4 years trying every setting in the book which nothing I tried would help. I then found this site, partially hyperized and things improved but now I'm going fully hyped to hopefully have a real combine from here on out. Why the factory engineers aren't coming up with this stuff I'll never know.

 

[JM]

Factory engineers are locked into a world where design merely needs to meet criteria in Shigley and Mitchell and that their leaders who try to apply physical principles can only do so to a point where their imagination fails and they have to say "that's the way it goes" or "our physical model led us to apply the correct mathematics and this product is the result". It is a case of what they think reality should cause the machine to do versus reality.

 

[NDDan]

To the allready great comments I would add that most are rather thrilled with improvement from l series conventionals to R62. That is great that you are happy without any degree of hyperizing. I would say the hyperizing you are reading about more often reduces rotor loss rather than increase. I can't think of anything with hyperizing feeding system that could cause loss and company paid for installing shock kits on '97 or newer machines. They should of did the same with extended cylinder bars and they would saved $$$$ of warrentee expense, saved custumers, and got some new custumers. If you have removed reverse cylinder bars to get rid of constipation you can allways put them back in if they will correct reason you have loss. A cylinder in a R62 that does not have bars extended to discharge will have extreme constipation in last few inches before discharge. If you put all forward bars in and didn't extend to discharge I can only imagine the pressure on cylinder and cage where there is no rasp to help straw move over. In fact I've seen that pressure point even if they still had reverse bars in and it ain't pretty. Now if you don't push the 62 very hard (which means low HP use or feeder banging pluging ect) you may want to just slide along awhile but I don't have any custumers I would ever suggest to leave as is. It's just that it won't cost you much to save a bunch unless you do a bunch of other renewing while in there. To more directly answer your question I say: rotor loss could be unthreshed crop which a good true thresher concave and cylinder bars will take care of most of the time, and or you could have over threshed material after concave that can hold seeds from seperating and or under threshed green leaves from plants that refuse to die and or crossbars in thresher concaves or seperator grates could be rolling up crop instead of gently fliping crop because of crop being resistant to sliding. I'm sure I missed some things but you get the idea. What we have been doing as far as hyperizing in cylinder is taking a great basic setup that Gleaner has been giving us for years and adapting or updating it for the ever changing crops. Gleaner has been doing the same with a whole lot more hesitation. They would rather send out a machine with certain amount of constipation (that can be easily eliminated) so most all operators will get started and do a fine job in many conditions and crops. You set up your machine similiar to the way the factory has been doing for the last couple years and you will have an even better experience next year. Sorry so long. Good luck