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Discussion Starter #1
Today we were harvesting wheat and moved from one part of the farm to another. Same variety & same conditions.
The sample suddenly went very dirty - looks like all the chaff and grain are going into the tank. A less experienced operator was on the machine at the time so I am not sure of the exact sequence of events.
I have checked all the settings and looked over the machine checking the fan operation & removing the sieves. I all looks ok and there is plenty of wind and the back of the machine.

Any ideas what to check next?

We have a 9060 and the sample from that is all ok.

Thanks.
 

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what are monitors on bottom right hand side of pro 600 telling you are they all in green, have had issues with them sticking, how about preseive, set the same? are seives indicators in rear of machine when you operate seieves from rear of machine working together, any errors on monitor? let me know what you find, also, see if seives open and close from rear, have had issues with actuators, is levling system workin? some things to check, scott.
 

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Discussion Starter #5
THanks for the replies. The fan initially seemed to have grain & chaff in it, but not 100% sure as it has cleared itself. What was cause this?
The fan is now running at full speed & I can hear it wind up as I increase the rpm.
Will give it another go today.
 

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The fan will still move even if the air channel is plugged. Closing the bottom sieve too far will cause the plugging.
 

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325 mag is rignt about the "closing the bottom sieve too far will cause the plugging". Got to www.newhollandrochester.com and watch the video on the Air FLow Control if you want to know what is going on with the air in the self leveling sieve. The air loss out of the shoe doesn't keep it from working but it keeps it from working as well as it should.
 

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I am glad John Deere's do not have trouble with cleaning fans plugging. Is this a problem with all Case combines or just the newer Case-New Holland combines?
 

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It seems to be an issue with the 7010/8010 models. I don't know about the new models but I would guess the issue won't fall far from the parent stock.

The real problem is that the sieves are in cab adjustable........when you have the auto-steer dialed in..........header control is working great...........the radio stations are all playing the same old song........when you've scratched just about every place on your body you can reach..........you have the hand's-free blue tooth cell phone device...............you have to do something with your hands ..........so like a kid you start playing with the electric sieves to get a sample that's second to none........and next thing you know you've got a mess and if you ever looked in the grain tank when it's happened.......it is a second to none mess. The pain is certainly SELF inflected by the operator though.


dfully,

Thanks for posting back and telling us your problem was solved.
 

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One of the problems with the newer series is the return cross auger is so close to the clean grain auger. If you run a high return and hit a down hill slope you will put trash into your clean grain ( and fan). The other thing is that the sieve settings in the cab dint always match the setting in the back. If you are getting trash make sure the sieves have not moved, check them the old fashion way. We have seen a 5 sieve setting in one crop be a 9 in another even though the monitor still says 5. Get out of the seat and use your head.
 

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This happened to us on our JD9600 many years ago the sample just got dirty and I knew something wasn't right so we checked some stuff and the seives were all the way open so adjusted them back good clean sample for a little while and back to dirty again went back and the seives were open again. Found out to be that both top and bottom shacker pans were broke. But you said you took the seives out and everything looked fine so I don't know but this is my experence wtih the same situation.
 

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Midwest just described what i have done in the past, tried to hard to have the cleanest sample and made myself look pretty dumb, like i didn't know what i was doing. sometimes all the bells and whistles can be negative. the old fashion ways to check problems out sometimes can save big headaches. we can be our own worst enemies sometimes.
 
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