Posted by John_PA on November 11, 2012 at 21:42:27 from (71.182.164.251):
I ran down a bunch(about 22 acres) of 100-160 bushel corn on the toxic farm and the combine did good. it put a lot of cob tips in the bin, but the FM was 1.100 on the elevator ticket, so I didn't worry too much about it. The combine did good, moving along between 2.4 and 2.8 mph. Some spots where the corn was better, it didn't really give me fits. nothing growled, nothing choked, no bog downs.
Now, I moved over to the next farm and ran down about 8 acres of 193 bushel corn. again, nothing is growling, choking, bogging down. But, I haven't pushed it over 2.4 mph, because the harvesttrack needle jumps up. I don't see corn on the ground behidn the machine, and walking along side while it is running, it looks like dry ear tips hitting the sensors, not corn kernels. What I did notice was that the rock trap was completely stuffed with unshelled ears, husks, cracked corn, and cleaned cobs.
I cleaned it out, and haven't had a chance to run it to check it again, because Im waiting on a part. I read through the manual and it says nothign in teh trouble shooting about the rock trap filling like that. I noticed hardly a single kernel of corn on teh ground behind the machine, but, laying on the back axle is lots of starch powder and cracked corn mixed into the chaff. I would assume it is overthreshing, but my cylinder speed is at 320 right now, and the concave is set 1 notch from teh widest for corn. when I slowed the cylinder down more, I got kernels on cobs coming out the back. I'm afraid to open the concave any more. maybe I should. some of teh ears are like baseball bats.
In my harvest bliss, I completely forgot to check tailings, but, I guess the cracked corn could be from excessive tailings.
Since I am not familiar with this blessed beast, I have to ask an obvious and dumb question...
where is the sieve? where is the sieve adjustment?
I'm am familiar with combines that have a chaffer and a sieve. the chaffer is on top. there is a lever for that. the sieve is under. there is a lever for that. on this combine, and in the manual, it mentions a sieve, but, does not say where the adjustment lever is. if I look through the chaffer I can't see teh sieve. there are 2 blue handles on the back. both operate the chaffer. I think I should be opening the sieve to allow more grain into the clean grain auger, and closing the chaffer some to keep the cob tips out of the bin.
I'm just confused, maybe because of teh john deere terminology. maybe they call both sieve and chaffer a chaffer... I don't know...
All I know is that I could possibly have 200 bushel corn and I am pulverizing 7 or more bushels per acre in cracked corn blowing out the back.
Any insight would be great. All in all, I do like this machine. In july I ran a Gleaner K. Now I am running a 6620 sidehill titan II. It's like another world.
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