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Early S680 capacity
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jicasedeere
Posted 11/26/2015 16:54 (#4920611)
Subject: Early S680 capacity


SE SD		We have owned a 2012 S680 combine and a 616C non-chopping corn head for three seasons now and have some issues that just don't go away.

1.) Bottom feeder house door leaks intermittently. I have adjusted the cam bolts every which way, replaced the latch and handle, and used hoseclamps/duct tape etc...to try and get it to stop leaking. It leaks worse going in and out of ditches and up and down hills.

2.) Dirty grain sample and grinding. I have messed with the settings every which way, tried Deere's recommendations, installed concave spacers etc...I seem to get too much stem and cob in the tank and it seems to chip and grind too much.

3.) I can't drive over 3.5 mph. Any faster and it starts throwing it out the back. 3.2-3.5 mph is all it wants even in dry corn.

The S680 has plenty of horsepower, but boy am I disappointed in the job it does with being able to thresh and clean fast enough. Using my calculations, I can only combine about 15 acres an hour of 180+ bushel, dry corn. Which comes out to roughly 2,500-3,000 bushels an hour. My goal was 20 acres an hour or 4,000-5,000 bushels an hour. I know Deere did some updates to the sieves in 2014, but obviously it wasn't enough because I read that they have increased capacity again in 2016 as well as add to the sieves again and redesigned the cleaning shoe.....Not sure what to do at this point, What I'm doing now obviously isn't working. I'm thinking my best bet would be to sell both units and go back to a 50, 60, or 70 series STS and an 8 row head. The most productivity I ever got out of an 8 row was about 2,000 bushels an hour.....What type of productivity, speed, etc. are you guys getting with your 8-12-16 row heads? With these grain prices, I really don't feel like shelling out the coin for a 2016 S680 and "hope" it solves the problems of this 2012 model...Going red is tempting, but our dealer CaseIH dealer sucks!!!!! Our Agco/CAT dealer service sucks too....



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kggonzo
Posted 11/26/2015 17:09 (#4920629 - in reply to #4920611)
Subject: RE: Early S680 capacity


Northeast Nebraska and Candelaria Philippines		We had the same problems. We went to Lexion to solve it. The solution worked great.

We just run a 12 row on a 750, and we can get 5000 without throwing it out the back.

The 760 is wider and has more capacity. I'd love to try a 16 row on a 760 or 780. I'm sure you could get 6500 without even making it grunt.

Lexion video https://www.facebook.com/dewey.gubbels/videos/vob.1320270057/1020781...



Edited by kggonzo 11/26/2015 17:11
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billybob
Posted 11/26/2015 17:17 (#4920641 - in reply to #4920611)
Subject: RE: Early S680 capacity


68340

You make me feel good.  I have a 1997 JD 9400 with a 8 row head.  I can run 3.5 mph in 230 bu corn and not throw it out the back.  That is 8.48 acres per hour X 230 = 1951 bu per hr. 

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Craig_theOnionFarmer
Posted 11/26/2015 17:34 (#4920670 - in reply to #4920641)
Subject: RE: Early S680 capacity


get a lexion and flush that green one!
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John Smith
Posted 11/26/2015 17:35 (#4920672 - in reply to #4920641)
Subject: RE: Early S680 capacity


South Central Illinois

The walkers work better in corn.

The rotors roll up the shucks and send corn out the back in a nice little package.

I think the aftermarket disrupter is something to consider.

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Lowyielder
Posted 11/26/2015 17:41 (#4920686 - in reply to #4920672)
Subject: RE: Early S680 capacity


Lol. You are mistaken.
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John Smith
Posted 11/26/2015 17:44 (#4920692 - in reply to #4920686)
Subject: RE: Early S680 capacity


South Central Illinois

About what?

The disrupter?

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Lowyielder
Posted 11/26/2015 18:07 (#4920732 - in reply to #4920692)
Subject: RE: Early S680 capacity


Walkers being better for corn
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John Smith
Posted 11/26/2015 20:17 (#4921069 - in reply to #4920732)
Subject: RE: Early S680 capacity


South Central Illinois

The rotors will always lose some corn.

They are better for beans.

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Angus8335
Posted 11/26/2015 17:38 (#4920682 - in reply to #4920611)
Subject: RE: Early S680 capacity


Galena IL		I put RPR concaves in both my 680s . I think that would help you on two complaints. Remember 3.5 mph with a 16 row is over 16 Acres per hour @ 250 per A that's over 4000 per. Take a look at your grain leg than look at your clean grain elevator, my dad always said "it takes all year to grow this crop, let's take a extra day and get it all" happy thanksgiving... Dennis
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BleedsGreenWI
Posted 11/26/2015 17:45 (#4920695 - in reply to #4920611)
Subject: RE: Early S680 capacity



Mondovi WI		I'm going to go out on a whim here being that I have only run walker's till this year. And have now run an sts.
1. The corn can make all the difference sometimes. Like if its taking a lot of trash in or more than normal that will make it alot easier to blow grain out the back. And as far as chipping the grain if it's really dry and hard to shell (died pre matture)that is just collateral damage.
2. If your not taking in much trash and getting rotor loss from the trash. Perhaps you have the tip sive to tight (trying to clean up the sample) and its easily pushed out. Try opening up the sive and pushing more air. (We had air almost 100% and sive open on the higher side of Deere's chart.) Or your fan maybe broken and that would be a problem as well.

I'm sure you know how to set a combine but that combine should just eat! We run two class 5 Deere's one walker and one sts and can run 4.5 in 225-240 corn all day with 6 rows. Bit and I mean But the corn can make these weird things happen!

Hope you figure it out.

BleedsGreenWI
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cornbeanlife
Posted 11/26/2015 17:52 (#4920702 - in reply to #4920695)
Subject: RE: Early S680 capacity


We made the switch to a red machine four years ago and we should have done it many before that we previously had a 9760 8 row head doing 2000 to 2500 bushel an hour running 3.5 to 4 at max for speed went to a 7230 case running 5 to 6 mph better job clean sample no grinding and our red dealership has a bad rep around here for parts but knock on wood they have been good to us
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3furrow
Posted 11/26/2015 20:28 (#4921106 - in reply to #4920702)
Subject: RE: Early S680 capacity


suburb of Ontario`s Middle east		Year to year, corn variety to corn variety, moisture to moisture, location to location, temp to temp, operator to operator, setup to setup, geographic location to geographic location, land contour to land contour, john Deere, lexon, new Holland , international blah, blah, blah, blah, blah.
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Lowyielder
Posted 11/26/2015 18:09 (#4920737 - in reply to #4920695)
Subject: RE: Early S680 capacity


Everyone in this area has problems with the s series grinding corn.
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iowa50
Posted 11/26/2015 18:15 (#4920750 - in reply to #4920737)
Subject: RE: Early S680 capacity


I had a 9870 with a 12 row head for the last few years and got so tired of losing corn and burning up fuel like it was free.
Went to a lexion this year and solved both problems with more power to boot.
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nate9610
Posted 11/26/2015 18:12 (#4920745 - in reply to #4920611)
Subject: RE: Early S680 capacity



Boise City , OK		I have a 2013 680 I had a likable sample and could run 5-5.5 with a 12 row head all day long in 230-250 with out thrown it out of the backend. I tired uploading a pic of my settings but I can't get it to show up.
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jicasedeere
Posted 11/26/2015 18:28 (#4920779 - in reply to #4920745)
Subject: RE: Early S680 capacity


SE SD		I just watched Lexion's 10 hour challenge where they harvested over 50,000 bushels in a 10 hour day. Very impressive! It's just too bad our CAT dealer would have to drive 40 miles one way just to get to us if we had a problem. Plus, I hear Butler CAT is super expensive for parts and service. Even more of a rip-off than Deere. Is this true??....The video does prove though that obviously something isn't right with my S680. I can't even come close to that kind of productivity in a 10 hour day. Here is a picture of one of my many settings to try and get it right...



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rab1964
Posted 11/26/2015 18:34 (#4920789 - in reply to #4920779)
Subject: RE: Early S680 capacity



I never run over 30 on clearance and your air should be wide open running a 16 row to start with. Rotor speed is too high for me.
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DB Tracks
Posted 11/26/2015 18:37 (#4920800 - in reply to #4920789)
Subject: RE: Early S680 capacity


Camp Douglas Wi. 40miles nw of wi. dells		Agree on all 3 accounts. Dan
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jicasedeere
Posted 11/26/2015 18:41 (#4920807 - in reply to #4920789)
Subject: RE: Early S680 capacity


SE SD		Anytime I have the air over 1,000 in sub 16.5% corn, it blows it out the back. When we first got the machine, I had my threshing speed way lower like around 350-400, but then when I walked behind the machine, there were unshelled broken cobs everywhere behind the machine. Once I sped it up, that went away.
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Kornkurt
Posted 11/26/2015 18:42 (#4920816 - in reply to #4920807)
Subject: RE: Early S680 capacity


Central Iowa		Unshelled broken cobs are caused by too much speed and too wide a concave.
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JohnG
Posted 11/26/2015 22:00 (#4921319 - in reply to #4920807)
Subject: RE: Early S680 capacity


W. Illinois		Re. the higher fan speeds. This year we had quite a bit of dry corn... first time I've felt we got any capacity out of our 680...
I run the fan around 1100-1200 most of the time and have noticed in dry corn that it will have a little temper tantrum at around 3000 bph where it will show a lot of loss on the shoe. Push it up to 3200 bph or more and it would come out of it. Just something I observed...
In wet corn it won't come out of it and (in my experience) about 3000 bph is all you are going to get and be happy with losses.
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kggonzo
Posted 11/26/2015 22:43 (#4921408 - in reply to #4921319)
Subject: RE: Early S680 capacity


Northeast Nebraska and Candelaria Philippines		I wouldn't get hung up on the 40 miles to the Claas dealer. Parts are expensive, but well built. When we had our deere, we were spending 15k a year on upkeep. Augers in the deere had to be replaced often, ect. Claas parts are heavy built.

I can't speak for bulter, but down here in Nebraska, we have Nebraska Harvest Center as our dealer. The service is unbelievable. The mechanics are hands down some of the best around in both skill and attitude. They take a down machine seriously, and will do what it takes to get you back up running. Even at 10 pm on a Sunday night, they will come out with a smile on there face.

I have several stories to relate. Once when the machine was down in the field, the mechanic was RUNNING between his truck and our combine when he needed a tool. Another time, we had a hose clamp break on the coolant. We were near the highway, and had the engine shield up. A Claas mechanic was driving by on the highway and saw us 1/2 a mile away. He pulled in to see if he could help with anything.

Just time and time again, Claas has smoked deere on parts and service. It's so frustrating when the deere dealers want to close up parts at 6:00 during planting and harvest. And, god forbid you use the deere after hours parts number. They act like coming down to sell you a part at a $500 profit is a favor to you.

It's just a different mindset between the deere and the Claas dealers.

I would suggest at least demoing a Lexion, whos knows, you might fall in love like most of us other converts.
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JDGnut
Posted 11/26/2015 23:21 (#4921453 - in reply to #4921408)
Subject: RE: Early S680 capacity


Waxahachie, TX		Lots of good info above.. When the dealer had come out or even you.. Are they leveling the rotor/concaves.. I would have guessed this was done in the beginning, but sometimes the basic things are forgotten.
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jicasedeere
Posted 11/26/2015 18:36 (#4920795 - in reply to #4920779)
Subject: RE: Early S680 capacity


SE SD		I don't have my cheat sheet with me, it's in the armrest of the combine which is tucked away for the winter. But I do remember that in wetter corn, I turn my air up to over 1,000. I've tried speeding up my threshing to gain speed, but if I go too much over 550 it grinds the hell out of it and the added speed just starts throwing it out the back. My threshing clearance is up there because I'm taking in 16 rows worth of corn. If I close it down too much it either grinds or plugs.
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Kornkurt
Posted 11/26/2015 18:39 (#4920803 - in reply to #4920779)
Subject: RE: Early S680 capacity


Central Iowa		I don't have an S series, but if this was my 70 series, I'd have the concave around 24 and the fan wide open, rotor much slower, don't remember off the top of my head on the sieve and chaffer, but they are set pretty close to the book.

Edited by Kornkurt 11/26/2015 18:41
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jicasedeere
Posted 11/26/2015 18:53 (#4920843 - in reply to #4920803)
Subject: RE: Early S680 capacity


SE SD		I agree with you guys about how some of the settings seem out of whack. Just to add to the story here....We've had many John Deere combines before this S680. And the last two were a 9650STS and a 9760STS in which we just ran an 8 row corn head and I had ZERO problems getting a clean sample or throwing any out the back. It's when we got this damn S680 and 16 row head that we now have all these problems.....On our old machines my clearance was never over 30, my threshing speed was lower, etc...When I tried to use the 9760 & 8 row settings on the S680 and 16 Row, obviously it didn't translate very well. I've had Deere out a few times to look it over and they basically ran it close to where I was running it and said that's as good as it gets....So after three years of this crap, it's time to either go back to an older machine and 8 row head, switch colors, or say the hell with it and just have it custom hired done. Sick of fighting this P.O.S.
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Lowrent
Posted 11/26/2015 19:59 (#4921009 - in reply to #4920843)
Subject: RE: Early S680 capacity


Md./Pa./Va.		Having same issues here. Dealer said I was the only one.

I get around 2500bu/hr (on the monitor) with 670 3000 max. Neighbor has 680 w/16 row claiming 5500 with "acceptable loss"
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Cornhusker89
Posted 11/26/2015 19:12 (#4920890 - in reply to #4920779)
Subject: RE: Early S680 capacity


E Central NE		I run a S660 with an 8 row head. In dry corn like you are running in the picture, I'm running the rotor 240-260, concave 28-30, and fan 1300-1350. If your getting grain damage your rotor is running way to fast. If you have broken cobs with kernels on them your concave is open too far and speeding your fan up, would really clean up your grain tank. I run these settings in 200-250bu corn at 4.2-4.5 mph with virtually no grain loss.
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Five Lock Boll
Posted 11/26/2015 19:43 (#4920972 - in reply to #4920779)
Subject: RE: Early S680 capacity


Northeast Louisiana		Not near enough air there is your biggest problem.
And do your separator grates like ILMOfarm has his. That basically does what disrupters do. I've never been able to keep disrupters in the machine for more than a day or two.

Edited by Five Lock Boll 11/26/2015 19:45
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Luckyfarmer
Posted 11/28/2015 04:01 (#4923710 - in reply to #4920779)
Subject: RE: Early S680 capacity


Central South Dakota		I'd be running 280-300 on the rotor, 27-30 on concave, the 13 number on the chaffer should be closer to 18, bottom sieve looks fine and you need to be running 1300 or so on the air. We were running 5.8-6mph consistently with a s670 and 12 row head in 150-180 bushel corn and it was doing a good job.
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jbweston
Posted 11/26/2015 18:44 (#4920820 - in reply to #4920611)
Subject: RE: Early S680 capacity



Central Ohio		Ok, so where are you losing corn? Rotor? Chaffer?

A lot of deeres problem is the stupid round bars concave. The ONLY thing it is best for is not plugging with wet crap.

The estes RPR concave setup is 10x better,but a bit pricy.

Made my own on the cheap. Took two large wire concave and pulled every other wire. Openings are huge. I put one in the front position to let corn thrashed early out early, unlike round bar with tiny openings, and one in third position to let separation start early. Square edges retard corn and make for more grain on grain thrashing.

This is on a 9860 bullit rotor, ekotune, deep tooth chaffer, with a 18 row 20" head. Picking 250-300 bushel corn, 14-19 moisture, at 4 mph on parts of many farms end to end and loosing no more than a bushel. That is around 4000 bph.

For beans I made cover plates for the front concave. Works super.

Edited by jbweston 11/26/2015 18:46
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jicasedeere
Posted 11/26/2015 19:02 (#4920864 - in reply to #4920820)
Subject: RE: Early S680 capacity


SE SD		If you go by the loss indicator in the cab, the majority of my loss is rotor loss. Also depending on the chaffer setting, sometimes my tailings is higher than it should be. My sieve and chaffer sensors plunk out though every year about half way through harvest, so I try and do the visual checks in the back of the machine and behind it on the ground to see how and where I'm losing grain....When I look into the back of the machine at the sieves, I don't even see a kernal at my current settings. Just husk and empty cob.
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nekfarmer
Posted 11/26/2015 19:20 (#4920917 - in reply to #4920864)
Subject: RE: Early S680 capacity


NE KS		Are you sure your sensors are correct, or could they be wrong and your shelling it off at the head? Sometimes on our case the sensors will go wack and I will get out and look but not see anything on the ground. This year I had some corn that ran out of the head like water, lost a lot of kernels on the ground (dekalb).
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jicasedeere
Posted 11/26/2015 19:26 (#4920937 - in reply to #4920917)
Subject: RE: Early S680 capacity


SE SD		For me it's not coming from the corn head. When I do a power shut-down I always compare the loss at the header with the loss behind the machine to come up with a total loss number. As far as the sensors are concerned, I calibrate everything before we start harvesting. For some reason, my loss sensors always plunk out half way through harvest. Usually right after soybean harvest, going back into corn.

We've had head shatter problems with Dekalb corn too though on our farm. It just drys down so fast!

Edited by jicasedeere 11/26/2015 19:27
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ILMOfarm
Posted 11/26/2015 19:13 (#4920897 - in reply to #4920611)
Subject: RE: Early S680 capacity


WCIL		It's the nature of the beast(ironically tho it's the farthest thing from a beast compared the competition). However you should be able to get 4000bu/hr out that setup. I have been fighting this since S Series came in 2012. I have looked very hard at switching to lexion and still may but our Deere dealer is 20 minutes away, has a great shop and treats us fair on trades. Plus there are lots things I really like about the S series. I'm running S690 on 618C stalkmaster depending on conditions in can get 4200-4700 bu/hr in good irrigated corn across my scales. I do occasionally see the monitor spike to 5000+ in dry corn in ideal conditions. So here's some suggestions that have worked for me to increase capacity and grain quality. Most of these tips I found here on this forum and through lots of phone calls as well as trial and error.

1). Grain quality. I changed the sprocket on feeder house conveyor chain to a smaller sprocket to slow it down. (25 tooth I think). Next I reversed the slats on feeder house chain. Running smooth side forward vs sererated. Changed paddles on feed accelerator to swept back. Deere does not recommend them for soybeans but I had no issues with them running 640FD in green stems. Lowered the auger on corn head as low as I could get it. These changes reduced grinding of corn as well as fewer cob tips in the sample. It's not perfect but much better. If you are in really dry corn or easy thrashing corn, open the re-thrasher door and run the trash on the ground if there's no grain in the returns. This will greatly clean up the sample. Has almost no trash in sample when running with re-thrasher door open but I haven't been able to do that very often. I occasionally run a 9870 in corn with same head and similar settings and always get a cleaner sample so I decided to open re-thrasher door to see if I could get similar sample to 9870 and it did.

2) Capacity. I tried the full RPR with disrupters and had issues in certain hybrids. I pulled the
1 & 2 concaves and put round bar back in. Left the third one which is square bar in. I run the seperator grates down up down up. Donnie from CM recommended this to help disrupt crop flow even more. I also removed the pre-cleaner(or extended chaffer, whatever Deere calls it) as it plugs with trash in wet corn and greatly reduces the capacity of the chaffer. I personally don't think it gets enough air flow to keep it clean. I replaced it with black fingers that are in 70 series and maybe even S670. The 690 also has a higher capacity clean grain elevator than 680. There are people on this forum who wil argue that with you til your blue in the face. There is a thread from a fellow Ag talker who updated his 680 to the extra high capacity system.

Hopefully this is of some assistance. It's disappointing that these machines require so much extra effort and upgrades to get them to perform at an acceptable level when other manufacturers have better results straight from the factory. I will be running 2016 S690 so we will see if there claims of increased capacity hold true...



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jicasedeere
Posted 11/26/2015 19:35 (#4920959 - in reply to #4920897)
Subject: RE: Early S680 capacity


SE SD		I'm in the same boat with having a good Deere dealer close by. (Even though they can't figure out this combine)....But they are always johnny on the spot when I'm broke down or need parts. Our IH dealer is a disorganized clustered mess. I once took a tractor that I bought new from them for warranty work and it took them 5 months to get it fixed. The funny part is, when you walk in the door the parts guys try as hard as they can to find a place behind the shelves to hide so they don't have to do anything. Butler CAT is our local Lexion dealer, but they're 40 miles away and I hear their shop labor rates and parts are 1/4-1/3 more than Deere.....I also agree, that it's super frustrating when you invest so much money in this stuff and then have to go add a bunch of performance stuff on top of it all to get it to work right.
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Speed
Posted 11/26/2015 21:47 (#4921287 - in reply to #4920897)
Subject: RE: Early S680 capacity


farmland indiana		They make a different hinge for the feeder house transition that will help with the grinding. The problem is in the accelator not the rotor I think. A slow down kit, swept back plates, sprockets on feeder house drive and hinge will stop all the grinding. A friend of mine running a 16 pulled all the plates off the accelator and said he could not believe the different. This is on 680's.
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jakencks
Posted 2/3/2021 10:58 (#8803885 - in reply to #4920897)
Subject: RE: Early S680 capacity



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bigfarmer
Posted 11/26/2015 19:27 (#4920939 - in reply to #4920611)
Subject: RE: Early S680 capacity


Ontario		Top Screen should be 18, bottom 20, fan 1200+, Rotor 350ish.
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White Workhorse
Posted 11/26/2015 19:33 (#4920952 - in reply to #4920611)
Subject: RE: Early S680 capacity


Sourthern WI		I'd question if your Deere dealer is really much better than the others if you are still struggling with the machine after three years. Just something to think about.
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bigfarmer
Posted 11/26/2015 19:34 (#4920956 - in reply to #4920611)
Subject: RE: Early S680 capacity


Ontario
jicasedeere - 11/26/2015 16:54

We have owned a 2012 S680 combine and a 616C non-chopping corn head for three seasons now and have some issues that just don't go away.

1.) Bottom feeder house door leaks intermittently. I have adjusted the cam bolts every which way, replaced the latch and handle, and used hoseclamps/duct tape etc...to try and get it to stop leaking. It leaks worse going in and out of ditches and up and down hills.

2.) Dirty grain sample and grinding. I have messed with the settings every which way, tried Deere's recommendations, installed concave spacers etc...I seem to get too much stem and cob in the tank and it seems to chip and grind too much.

3.) I can't drive over 3.5 mph. Any faster and it starts throwing it out the back. 3.2-3.5 mph is all it wants even in dry corn.

The S680 has plenty of horsepower, but boy am I disappointed in the job it does with being able to thresh and clean fast enough. Using my calculations, I can only combine about 15 acres an hour of 180+ bushel, dry corn. Which comes out to roughly 2,500-3,000 bushels an hour. My goal was 20 acres an hour or 4,000-5,000 bushels an hour. I know Deere did some updates to the sieves in 2014, but obviously it wasn't enough because I read that they have increased capacity again in 2016 as well as add to the sieves again and redesigned the cleaning shoe.....Not sure what to do at this point, What I'm doing now obviously isn't working. I'm thinking my best bet would be to sell both units and go back to a 50, 60, or 70 series STS and an 8 row head. The most productivity I ever got out of an 8 row was about 2,000 bushels an hour.....What type of productivity, speed, etc. are you guys getting with your 8-12-16 row heads? With these grain prices, I really don't feel like shelling out the coin for a 2016 S680 and "hope" it solves the problems of this 2012 model...Going red is tempting, but our dealer CaseIH dealer sucks!!!!! Our Agco/CAT dealer service sucks too....





Id be willing to trade you for my 893 and 9770... ;)
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8320farmer
Posted 11/26/2015 20:07 (#4921041 - in reply to #4920611)
Subject: RE: Early S680 capacity


East central Indiana		I'd say try a 12 row head. Local guy tried a 690 and 16 row head and was the same problem. Went back to 680s with 12 rows and running 5 mph in good corn.

One thing I ask though. Why do you have the top sieve shut down so far. Dad always says open the top clean with the bottom.

What do you mean by dirt sample. Is it just a little cob or is it bad enough your gonna be docked. We raise food grade corn and are still allowed some cob. Little cob never hurt anybody.
Some guys like perfect clean no cob but I don't see what it hurts
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thompske
Posted 11/26/2015 20:10 (#4921048 - in reply to #4920611)
Subject: Put ur chopper up and see if u are getting


ontario. canada		Corn off the cob. That's what I do. Leave chopper up if corn on cob. Tighten concave. We run rotor 300-350. Also Estes Concaves and disrutupers help us with grinding and corn out the back.
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cbiers
Posted 11/26/2015 20:27 (#4921103 - in reply to #4920611)
Subject: RE: Early S680 capacity



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another round
Posted 11/26/2015 20:36 (#4921129 - in reply to #4920611)
Subject: RE: Early S680 capacity


Athens, Illinois		Your settings are way off. Your grinding the corn because your cylinder is to fast and your concave is to wide. Your loosing corn out the back because your chaffer is so tight the corn can't fall through it and you don't have enough air to separate the chaff from the grain. Your concave should be around 25, cylinder speed 400. chaffer 22. sieve 12, air 1150. You have to make sure the sensors are telling the truth. I can shell 4000-5000 bu an hour with a 680 and a 12 row with these setting and lose very little out the back.

Edited by another round 11/26/2015 20:45
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3furrow
Posted 11/26/2015 20:42 (#4921138 - in reply to #4921129)
Subject: RE: Early S680 capacity


suburb of Ontario`s Middle east		In conclusion. If it's not doing the job. You do not have it set right,,,,
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Five Lock Boll
Posted 11/26/2015 20:45 (#4921147 - in reply to #4921129)
Subject: RE: Early S680 capacity


Northeast Louisiana		Agree, only difference is I run sieve pretty much wide open.
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jicasedeere
Posted 11/26/2015 21:18 (#4921223 - in reply to #4921129)
Subject: RE: Early S680 capacity


SE SD		Thanks for the tips, I really appreciate everyone's help and input. But what doesn't make any sense to me is that the first day we got it 3 years ago I had the threshing speed down to 400, clearance below 30, air over 1,000 (can't remember chaff and sieve settings)....I basically copied the setup from our previous combine and head (9760STS and 608C) in which I had zero problems. I made one round with these settings, trying to drive 4 mph in 200+ bushel corn, and got out to check the job it was doing and there was corn everywhere out the back of the machine......So I sped up the threshing, and opened the clearance, did another round, got out to check it and the loss was much less. Sped it up and opened it up some more and it kept improving, meanwhile I also had to slow my ground speed from 4 mph down to about 3.2-3.5 mph. From there I've been trying to tweak it to clean up the tank.....I understand that my threshing speed and clearance seem high to the guys running 8 and 12 row heads. I never ran my speed and clearance that high with our 8 row and 60 series. But when I tried to run 8 row settings on a 16 row head, it was a disaster out the back of the machine. I calibrate everything top to bottom that you can calibrate every season. Same results....Deere dealer comes out and goes over DTAC suggestions and runs it...same results. They can't figure it out either. I've had great luck with every other Deere machine I've had except for this one.

I wish I would've said something on here sooner when we were combining so I could've tried some of the suggestions to see if anything improved. Now it'll have to wait. But going over my costs of harvesting, I can hire a local guy who owns three combines, two carts, and 15 trucks for $30 per acre hauled to the elevator. Heck, I can't run my own equipment that cheap and get my crops out any faster than he could. I'm starting to think I'm better off selling this combine, the heads, the grain cart, and just having it custom done.
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rab1964
Posted 11/27/2015 02:32 (#4921520 - in reply to #4921223)
Subject: RE: Early S680 capacity



jicasedeere - 11/26/2015 20:18

I can hire a local guy who owns three combines, two carts, and 15 trucks for $30 per acre hauled to the elevator. Heck, I can't run my own equipment that cheap and get my crops out any faster than he could. I'm starting to think I'm better off selling this combine, the heads, the grain cart, and just having it custom done.


Good luck with whatever you decide, but I wouldn't count on this as a long term plan. Someday he is going to figure out he's losing money with this plan or he's planning on winning the lottery every few years.
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Barney
Posted 11/27/2015 07:59 (#4921708 - in reply to #4921520)
Subject: RE: Early S680 capacity


West Central, IA

Smooth feed accelerator bars, slow the feederhouse down w sprocket, remove the precleaner all together(sitting in the shed along the wall) - it holds the grain up from getting away from the concave in high yielding environments, and push the hydro ahead to get it full.  We can run 3,500-4,200 most days with 18 row 20 head.  Sample is good, not spectacular but good.  No issues with beans feeding with the smooth bars.  We have not changed the feederhouse bars but that makes sense, maybe we will try it.

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wildbill069
Posted 11/27/2015 00:01 (#4921480 - in reply to #4920611)
Subject: RE: Early S680 capacity


michigan		Couple things i did was put an extension on the clean grain pan under the chaffer too get more use of that long chaffer they use without putting it in the tailings an sending it back around circles again.
And put different mounting brackets on the cleaning fan too get better air flow to help get all that chaff suspended n out the back.
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jbweston
Posted 12/3/2020 06:36 (#8641679 - in reply to #4920611)
Subject: RE: Early S680 capacity



Central Ohio		Marking.
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