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Discussion Starter #21
I clean the air cleaner once a season with the NH versus every other day with the CIH.
I wish that were the case. On my case 8010 i would have to clean the filter at least once a day and often it would not make a day of hard thrashing. I made modifications put a pipe up above the dust and a precleaner on it and now I would probably make the entire year without having to clean the filter. I usually clean it between crops just because. On the New holland I have the exact same issue It wont make a day with hard threshing before I need to clean it. I have check venturis and all of that but still same problem. I guess I will modify it like I did on the case for next year.
 

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I never had an 8010 but we did do the same mod you are talking about with our 1680 and 1688 with great success. We have had trouble with rad plugging for a while on one CR combines. We replaced the mo-hair on the rotary screen and that seemed to end the issue.
 

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Discussion Starter #23
So I have the setting for wheat working quite well now 1380 rotor 780 fan 5/16 concave clearance 3/8" top sieve 1/4" bottom sieve seems to be doing quite well averaging about 1250 to 1300 bushels per hour in 80 plus wheat with pans showing maximum of 1/4 bushel per acre loss.

I did a test on straight cut canola today, and it will be a day or two before it is ready to go, but tried the settings in the book and it did not seem to be doing a decent job. Has anyone straight cut canola with a cr before. I am thinking the rotor needs to be a fair bit higher than the book because typically the straw will not break up very well, nothing compared with swathed canola anyway. thoughts
 

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Not at the machine so can't look up my settings but I've ran from 800-1100 on the rotors. Just depends if green or dry. Usually set the clearance to the same as separation grates. I think it's a little more than a inch. Around 600 on the fan I think. Maybe a bit less.
 

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I started with the book settings and they were terrible. Today I went to 1200 rotor, .75 inch concave,550 fan. My top sieve was out of calibration so I was around 1/2 inch instead of the recommended 3/8th but even so I had a much lower loss reading. Bottom sieve 3/16th. This was invigor 233 swathed late. Still a dirty sample but less going out the back compared to 630-680 rotor speed I was using.
 

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I started with the book settings and they were terrible. Today I went to 1200 rotor, .75 inch concave,550 fan. My top sieve was out of calibration so I was around 1/2 inch instead of the recommended 3/8th but even so I had a much lower loss reading. Bottom sieve 3/16th. This was invigor 233 swathed late. Still a dirty sample but less going out the back compared to 630-680 rotor speed I was using.
Are you finding any cracked seeds at that speed?
 

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We run similar settings, except concave a bit wider. 15/16"-1"
This years P canola seems to be threshing out easier then usual. We lowered our rotor speed to around 900. This is straight cutting though.
 

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Are you finding any cracked seeds at that speed?
I only did a couple hoppers and then an idler bearing went out on engine and broke the main serpentine belt. I didnt see any cracked seeds to speak off. The combine specialist that suggested these setting said I could go to 1300 if I do not see cracking. Hard to get used to coming from a 2388 and 530 rotor speeds.
 

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Got a new to me 9.90 this fall. Also have my 9070. First wheat fields we did, dealership guys came out to show bells and whistles
Had the same problem as you, nothing but trash in tank, and returns way up in the red. Was hard to thresh goodeve wheat. But straw was breaking up too easy. Ended up putting 2 cover plates in. My 9070 was running with none. Have mad concave in it , not as wide spaced to let crap on grain pan.
 

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Discussion Starter #30
Okay getting frustrated with this thing, maybe my expectations are too high given what I have read, but here is my problem in straight cut canola.
First my setup
new this year sunnybrook concaves hard thresh in front and round bar in back
Presieve at 2
top sieve at 1/2"
bottom sieve 1/4"
fan 610
rotor speed 1000
concave clearance 1"

Crop is straight cut pod shatter resistant invigor canola running in the 50s. Straw is breaking up quite well not real bad. canola testing from 8 to 10.
My sample is okay I guess but dirtier than the case 8010, losses are running at .6 to .7 bushels per acre (this is throwing pans sieving them and weighing so I am comfortable that it is very accurate as to whats coming out the back). Speed I tried everything from 2.2mph to 3.9mph running a 40ft flex draper header. Losses went up at the 3.5 to 3.9mph speed but only by .1 bushel per acre. I tried faster and slower rotor (800 to 1300), did not really change anything as far as losses. I tried changing the fan and it seemed at 540 I was losing more and at 700 losses were higher as well. The loss monitors are not showing much for rotor loss but the sieve loss is staying in the yellow or red. I have the sensitivity on the sieve loss at 40. Funny thing is when I decreased fan to 540 sieve loss monitor went down into green but losses went up (i assume riding over in mog), also when I sped up to the 3.7- 3.9mph losses showed in the green but actual losses were higher, not really sure whats going on, its hard to adjust your combine when the monitor doesn't seem to track reality). I dont seem to be able to get the losses below half a bushel and I would have thought .25 bushel would have been achievable, the case is running 2.2 to 2.5mph and putting out about .5 of a bushel and has a cleaner sample.
Thoughts please
 

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I run the bottom sieve about ½" and top around ⁵/16 with the pre sieve closed and the fan around 700-750. I've never run the bottom sieve more closed then the top, thrash it once and thrash it right. Do you have the Cover on the discharge beater grate? It will spear straw straight down through the sieves if it's not covered, I've never harvested anything that needed the grate open yet
 
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