Combines Rotor loss R50

Just an observation. Grain in the straw would indicate a threshing problem rather than a separation problem to my way of thinking. Most of the free, threshed out grain would likely fall to the ground and not make it into the baler and then to strawberry patch.

Definitely have to agree, not knocking the grain out of the head is a concave and rotor speed problem(OPERATOR ERROR)not a machine problem. The baler will normally let the wheat or oats fall out if the rotor is set properly to thresh the grain. As I have said to my teenage daughter when she has car problems,"99% nut loose behind the wheel, 1% mechanical error". The number of times that straw goes around that rotor and is NOT getting the wheat off, he must be running wide open or is totally worn out.

I have never seen wheat heads with unthreshed kernels. I run 1_8" concave clearance and cylinder speed of 900 to 1000 rpm. Not tight enough or fast enoughIJIJ I will admit the concave is not a good one for wheat - it is the high wire type. It is 3 years old as are the rasp bars. So, do I tighten or loosen the nutIJ

Iwould have to agree about the settings. I do custom combining around my area and combine many different types of HRSW some like Pioneer 2375 take almost no threshing and others like Amidon need to be ground thru the machine at times. On some HRSW the concave must be closed til it ticks and then backed off to do a proper job.I have a good concave and bars on my R7 but the varities can be frustrating to adjust if doing more than one kind a day. But get it set and look out.

Ed Is there any possibility your concave is not square with the cylinderIJ I dont do small grain but I remember a couple of years ago Hyper ll suggested checking the rear concave clearance if the front is changed more than 1_8 or was it 1_4IJ Regarding adjusting that nut, around here we use a big rubber mallet. Tom in MN

Ed

My wheat is mostly soft, white, winter wheat - easy threshing stuff. The hard threshing spring varieties show up as kernels in the bin still in the hulls. Never, I repeat, never, have I found stalks with kernels yet attached. So... my suspicion is that adding extra helicals and extending the rasps in place of the paddles speeds up the crop movement too much for this short cage. after the concave,the crop only makes 2 revolutions of the cage and it's on the ground. (This combine also thows some corn kernels over the rotor - explain that from a threshing standpoint!) In an attempt to get better quality straw, I feel I have made some modification that work well in the long rotor combine but are inappropriate for the smaller machines.

Does the R50 have the option for cage fingers like the old N and R series didIJ They were recommended for some conditions in wheat, that kept the wheat in the rotor longer for more complete threshing on those models. What does your manual tell youIJ They took more power, but they also got more grain seperated from the stalk_cob_head. I know the newer manuals are not as complete as the old AC Gleaner manuals were. With each newer combine I have gotten the manual gets less info for settings.

G'Day Ed

Check the following:worn cylider bars-especially the 2nd. row,concave level,is crop director n 71353708 missing.Zero and level concave as follows.Find high cylinder bar and mark(paint). Adjust concave until this bar touches at top concave bar.Adjust turnbuckles to level if required.(with-in 1_16th inch).Roll painted bar down to front concave bar behind wearstrip n71348328.Adjust the front of the concave to 7_16 inch.Check to make sure it is level same as at top.Then set gauges at bottom of concave to mid position.These are scales with min,mid,andmax on them.On outside where you adjust concave setting, set indicator to zero concave clearance.Open to 1_8 inch and then run cylinder speed to point of crackage(950rpm+).You may have to adjust front of concave one line on gauge scales toward min. setting to keep a tight wedge configuration on concave.90% of threshng and separation should occur at concave.Most cylinder loss is caused by misadjusted wedge of concave.The operators book did not explain very well.Check with your Gleaner dealer.Also check R50 concave and other ideas listed later this month under name kernal for other sugestions and modifications.