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New holland CR7.90 wheat settings?
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Sharecropper jr.
Posted 6/16/2020 00:01 (#8317716 - in reply to #8316924)
Subject: RE: New holland CR7.90 wheat settings?


Deep southern Illinois
PeaKing - 6/15/2020 15:46

Does that have the 17" rotors? If so rotor speed to 1350 or more. Start with your top sieve mostly open. Bottom sieve 7/16 or more.fan speed 1000 to1100. Concave 3/8. Get your ground speed up to fully load the engine to 80% or more. If you start there you may need to close the seives a bit. If you have 22" rotors rotor speed near the top of the range. Been a while since I had small rotor but might be wrong on speed do they go up to 1725? If so just below that a 100 or so.


I have the 17’s. Right now I have the rotors at 1800, concave at 1/2” to thrash out the wetter stuff. Running small wires. It appears to be thrashing well, very acceptable number of kernels with chaff still on them. It’s slugging hard if I get to a down spot. I’ve tried the sieves open but not that far. I’ll try that tomorrow. Pre-sieve settings? How’s the best way to tell if the losses are walking out the back or blowing out? If I could figure that out I think I could really get somewhere. It’s under a decent load with a 35’ macdon.
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