[pioneer]

2008 r75 corn concaves and cdf rotor 140 bu winter wheat easy threshing Huge rotor loss's Factory set up on rotor with two sets of reverse bars and knives. Have tried seperator speeds from 700-1000. Concave set at mid and zeroed. No filler strips (easy threshing wheat so far) Concave settings from .15-.6
Seperator grate from 3-7. We have run Gleaners for over 30 years and never had this much problems and this bad of a job.

I don't have time to install a bison....I need to make this machine work NOW with this rotor ....... I need some help or fresh ideas....Please

Wheat is only running 57# bushel weight. We are parked until I can make it run better. HELP

 

[tj]

Sent you a personal message with questions and included email address

 

[NowGleaner7]

Some suggestions, only. Without being there I would suggest keep your rotor speed up and the concave tight wthout causing seed damage. Rotor loss is seldom from high speed but more low speed! Are you getting many returns? This can cause a build up for rotor loss. I remove the helicals on small door above sep. grate. I would only run reverse bars as a last resort. I have found steep pitch in the concave section can LOWER rotor loss under some conditions. Make sure you are zeroed out and I would run at least two concave blanks to prevent head dropthrough which can lead to more returns. There are many other things that will help but this is a good start. Set properly this machine will be as good as any and better then most in the field.

 

[aussiefarmer]

we tried one of these last year in one of our machines.

very few of these rotors in australia yet so all the help you fellas out there could put in this thread I too would be greatful to read!!

aussiefarmer

 

[NowGleaner7]

Yes wir this is a cdf which is shimmed out 1/4' under the rasp bars. I have used steep pitch with great success in wheat corn and beans in unshimmed and shimmed rasp bars in previous rotors. I would not want to use the Gleaner with any rotor without steep pitch and you are right that the power is not a problem with reverse bars in a cdf, 'But' I have not found them necessary and am running well below average for rotor loss. I have had less problems with rotor loss then when I drove other makes as well. My problem with reverse bars is straw damage and in corn definitely grain damage. I don't know why it doesn't work for you , maybe crop conditions

 

[NowGleaner7]

My first 6 bar (experimental) had steep pitch with unshimmed rasp bars. This rotor worked much better in corn and beans then the original 8 bar.Next rotor I shimmed 1/4" all the way thru, took every second discharge paddle off (extended rasps), alternated every other rasp bar off over seperator grate to give a tumbling action , removed the helicals off the door above the seperator grate and use an f2 bar in this location. I prefer the bar there if you are going to use it when the helicals are removed. I did this in stages. I always us Touchdown on my wheat 5 days min. before threahing so that could make a difference if you are in green straw. We do cut our wheat all in flex though because we want to bale most of it. I used the first rotor without most of these mods and had some more rotor loss. In most cases I have the concave setting from .1 to .3(max)! My objective is to thresh all at the concave (1st time) and separate most of it there also. I always use 2 rows (min) of concave blanks in wheat. This system produces more whole cobs, good quality corn and min. rotor loss for me. If I was in strictly wheat I would probably use the 8 bar rotor.

 

[nddan]

Pioneer, I hope you got this thing up to expectations by now. There are areas that just love this rotor. That includes a private Gleaner guru in Alberta that has installed lots of them for their wheat, peas, canola, ect. He sets them all up with forward rasp bars right off the get go. He makes sure the concave has been set per Gleaners instructions. He has just started playing with some steep pitch thresher helicals but don't know if that is in CDF equiped machines. I do know of three macines with CDFs that have a unique setup for this year. That is full steep pitch thresher helicals with them spaced the same as the normal pitch are and shimmed out 1/4". I do believe this preserves the room between helicals for cobs to roll and leaves enough space to prevent cob breakage. It also prevents second pass of some material over concave and brings metal to metal surfaces closer to maybe prevent the bridging in some crops. I believe it is the bridging that is giving some guys crop loss in some crops or conditions. I think a guy can find the trick that will make it more forgiving for all crops and conditions. I'd rather find the trick rather than have to run different concaves, seperator grates, pre-thresher grate and some of the other things that some brands have to do betweem crops. Also I may add that complete front and rear half of thresher concave does not fit the CDF perfectly threwout but the front half fits very well and that is about all we ever had in the P1 days. The back half may drop off a bit for the small grain settings but don't think that is a major problem. Also setting the seperator grate down to 3 isn't much more that leaving the grate on 9 (cage diameter) with the 25" Gleaner eight bar setup. With the CDF being 1/2" smaller radius you may need grate on number 0 to make much of a difference. I'm sorry for I am speculating hear a bit and we have our CDFs still set up basically factory for now and they are working just fine. That's not saying I won't get my fingers in there and screw something up someday!!!!

 

[pioneer]

Dealer spent part of day trying to make better. Not much luck. Suggested adding more knives to rotor to mix up crop mat more. Said they had knives they had taken off A85 (due to high grain loss in wheat) I could try. I was on parts run for something else at the time.....I called hired man and told him to take knives OFF!!! Loss has been cut in half now. It is doing an acceptable job. I think we are going to add F2 bar this week before we try spring wheat.

 

[NowGleaner7]

Pioneer,
Are you putting alot of straw through your machine or just topping the crop . We never found much advantage with the knives except maybe in tough viney crops. I am glad that solved the problem. Dave

 

[pioneer]

Put in F2 bars and cut losses down to close to nothing (6-8 on left side and 0-2 on right side) in 100 bu spring wheat. Thanks for everyones thoughts and comments.

 

[wheaty75]

I tell you what NDDAN has a lot of good ideas, but the best one; was NO reverse bars. You guys have got to stop putting those god foresaken things in there. Try to pull all reverse bars out in all my combines wherever I'm at. Have not found a crop they would work worth a S*** in, unless you like to pay for that fuel. Theres other ways to slow that crop down so you don't kick it out the rotor.

 

[nddan]

Are you pulling them from CDFs as well as the 25" rotors wheaty? I've been cautious with the CDFs so far. Most still have factory installed reverse bars over concave but I have removed the ones next to discharge. Also removed knifes from two of them before they went out after reading above results. No problems thus far. I do have a machine pushing 32' stripper head with factory setup of reverse bars and we may end up installing narrow rasp bars over concave (or maybe every other wide rasp over concave) plus a strationary rasp on seperator grate before we have the thing as good as the guy wants. Were tring to do the best we can with factory setup before we try some of the other tricks. It helps to have the comments from the guys that have good or bad results from what they have done. We all would like all the capacity and all the crop with minimum fuel use with minimum changes between crops.

 

[wheaty75]

NDDAN we pulled all reverse bars on CDFs 8-bar rotors all of them. Of course run different rotors now. But no reverse bars got the best performance. Job on the ground with no revesrse was very near the same. Possibly more white caps though.

 

[nddan]

Thanks for that wheaty. I had a private Gleaner guru from Alberta that was setting all his CDFs up with all forward bars. He set up some with steep thresher helicals this year. One guy was seeing a little more rotor loss than he would like so suggested the stationary rasp deal. He quickly made up a couple to give a try. First one he installed he also did a reverse bar in row A and a reverse bar in row B. Not much time to mess around so he did both. This worked perfectly and now he has great feeder capacity, no back feeding, great capacity, no thumping and bumping, and very low losses. He quickly went and tried the stationary rasp in another machine and loved the results (very very low losses). Thanks to tbran at B+G for dreaming up this deal years ago. All is well!!!

 

[pioneer]

I did not shim helicals. I did run seperator grate to 1 or 2. Removing knives helped tons...Adding bars made all the difference though. I believe it gets things tumbling which helps release more grain.

 

[NowGleaner7]

Pioneer,
Did you find removing the knives in all crops was better or just wheat. The time we tried it in 24% corn it made little difference. I'd appreciate hearing all your input in this. Maybe I should re try this! TIA Dave

 

[nddan]

wir, Don't know if stationary rasp is better than raising the grate. The stationary rasp does create a bump and void just beyond it. I'd suspect the void dumps some crop before it gets carried around cage further and the bump ruffs up the crop some to shack some more out. At any rate I've never heard anyone say it does not help. If you adjusted up seperator grate with rasp bar (jump bar, F2 bar) installed be sure to roll over to make sure you have clearance to cylinder bars. This guy I was talking about above did not shim any steep helicals. I just got another report from this guy where his custumer phoned him to brag how well his R75 was doing against a demo class eight (non-AGCO) with 130 plus more HP. Doing the same work and job and using 6 gallons less fuel per hour.