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Birddy

Posted 7/27/2018 17:39 (#6896300)
Subject: Pros Cons - JD 9770 vs. S680

What are the pros and cons of a 2011 last model 9770 or a 2012 S680

combine. Looking for a trouble free combine that will last for many years.

IaAngus

Posted 7/27/2018 17:50 (#6896315 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

Eastern Iowa

Seriously, I think your expectations are to high for any make or model.

kinzepower

Posted 7/27/2018 17:58 (#6896327 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

SW Ontario

I would get the last 9770.
Your expectations are not high IMO...the 9770s are near bullet proof and VERY dependable.
Look for one with the high wear package or custom cutters package.

kswrenchturner05

Posted 7/28/2018 06:52 (#6897097 - in reply to #6896327)
Subject: RE: Pros Cons - JD 9770 vs. S680

Geuda Springs, Kansas

I agree, 9770 has been the best combines we have ever ran and we intend to keep the, going for many many years. They are the last simple machine Deere produced.

mutt

Posted 7/27/2018 18:17 (#6896358 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

nw kansas

Have both right now, 680 is quite nice to run but drinks like a sailor 15-20 more capacity than 9770 really like it but needs improvement. 9770 not that impressed with loud not as clean of grain as 680 and junk moisture sensor pisses you off every time. My choice is 680 with power fold tank extensions and the 5 speed feeder house. One other difference is weight 680 is a fat girl compared to 9770.

Edwa0221

Posted 7/31/2018 21:15 (#6904383 - in reply to #6896358)
Subject: RE: Pros Cons - JD 9770 vs. S680

Southern MN

mutt - 7/27/2018 18:17

Have both right now, 680 is quite nice to run but drinks like a sailor 15-20 more capacity than 9770 really like it but needs improvement. 9770 not that impressed with loud not as clean of grain as 680 and junk moisture sensor pisses you off every time. My choice is 680 with power fold tank extensions and the 5 speed feeder house. One other difference is weight 680 is a fat girl compared to 9770.

Just did this exact comparison this winter. Bought a 12 s680 with power fold and 5 speed. For the small price gap I figured you make the jump to the S series.

DevinF

Posted 7/27/2018 19:08 (#6896427 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

Nwmo

I can't speak to a 680 but I can promise you a 9770 will not be trouble free for many years unless you are only going to put 20 hours a year on it. After about 400 hours it's all down hill.

jfreed

Posted 7/27/2018 19:32 (#6896472 - in reply to #6896427)
Subject: RE: Pros Cons - JD 9770 vs. S680

South West Michigan

I can appreciate what "some" on here say that it's NOT the hours but the "ACRES" in that time. YIKES, 400 hrs and "downhill" is not good IMO. I don't care how many acres are run,most gripes are about bearings,chains and water pumps(green). 400 hours IS 400 hours,not 12,000 acres pertaining to bearing/chain/belt idler life?? Please enlighten me if I am wrong.

Poverty Flats

Posted 7/27/2018 19:47 (#6896501 - in reply to #6896472)
Subject: RE: Pros Cons - JD 9770 vs. S680

SW Minnesota

2012 was the first yr of S series which needed many pips and they are still doing, the 2014 and 2015 machines the beefed up quite a little. the 9770's are getting some age by now lots of bushels thru them.

DevinF

Posted 7/27/2018 23:17 (#6896899 - in reply to #6896472)
Subject: RE: Pros Cons - JD 9770 vs. S680

Nwmo

I don't understand what your asking, I would say 400 sep hours in this part of the country is going to be somewhere between 3000 and 4000 acres depending on heads. At 400 hours things start to go down hill, by down hill I mean you are going to start spending some money on wear items and broken parts after that time period. I'm not saying it's going to be a basket case at 400 hours, but it's never going to get any better and I wouldn't say they are cheap to keep running. I lost a primary counter shaft gear box at 800 sep hours, those are 6k and it was all due to a lock nut backing off.

dvswia

Posted 7/28/2018 06:43 (#6897085 - in reply to #6896899)
Subject: RE: Pros Cons - JD 9770 vs. S680

sw corner ia.

has the flood situation gone better this year, Devin?

DevinF

Posted 7/28/2018 12:27 (#6897603 - in reply to #6897085)
Subject: RE: Pros Cons - JD 9770 vs. S680

Nwmo

Yes, let me find some wood to knock on. First year in a long time that we haven't flooded somewhere at least once. The downside to that is corn in the hills has started denting. Been fighting Japanese beetles and now spidermites are starting to show up. We are seeing large patches of soybeans turning light green but I'm not sure if it's just dry or if we have enough spidermites to cause the damage. I'll take all the bugs and heat over flood any day, I'm tired of taking zeroes on crop insurance.

dvswia

Posted 7/28/2018 13:28 (#6897698 - in reply to #6897603)
Subject: RE: Pros Cons - JD 9770 vs. S680

sw corner ia.

good luck on the finish.. jap beetles have extracted quite a toll on my beans this year as well. had a nice rain last night, I thought, but most of the best beans are now layed over.

kswrenchturner05

Posted 7/28/2018 10:12 (#6897431 - in reply to #6896899)
Subject: RE: Pros Cons - JD 9770 vs. S680

Geuda Springs, Kansas

That is every combine. Every owner harvesting 2500 acres per year should be spending 10-20,000$ per year in maintenance.

DevinF

Posted 7/28/2018 12:30 (#6897606 - in reply to #6897431)
Subject: RE: Pros Cons - JD 9770 vs. S680

Nwmo

That was kind of my point, I do most all the labor myself but some years I do spend close to 10k in parts, this is going to be one of those years.

John K

Posted 7/27/2018 19:42 (#6896494 - in reply to #6896427)
Subject: RE: Apparently your experience was MUCH different than ours.

East Central Kansas

We only ran ours to 1400 separator hours, only mechanical problems was with the upper feeder house variable speed drive sheave assembly. Did have some downtime when I ran a chunk of wood in and it bent the feed impeller shaft., Replaced the bin loading and unloading augers. Overall a very reliable and productive machine

jdironman

Posted 7/27/2018 20:01 (#6896532 - in reply to #6896494)
Subject: RE: Apparently your experience was MUCH different than ours.

Nw Iowa

Both good combines, 9770 was a very good balanced machine. Depending upon which heads you run, there are a few 9770's with 5 sp feederhouse if you are running a chopper head. 680 will run rings around 9770 in corn but hard to keep corn away. I would prefer the 680 but some weird things like the rethresher. 9770 doesn't have as much emissions crap.Just depends how many acres you have to do. Price difference won't be as much as advertised as there is more demand for 9770

byron8400

Posted 7/27/2018 20:05 (#6896539 - in reply to #6896494)
Subject: RE: Apparently your experience was MUCH different than ours.

I would say the 70 series is the best combine Deere ever built. Not near the emission crap. The electronics on them were a lot less trouble free than The S series. The moisture sensors are good if you set them properly they don't wear out nearly as fast. Just a darn good combine.

Edited by byron8400 7/27/2018 20:06

DevinF

Posted 7/27/2018 23:28 (#6896915 - in reply to #6896494)
Subject: RE: Apparently your experience was MUCH different than ours.

Nwmo

That is very lucky, I had a new set of chopper knives, a rotor bearing, shoe auger bulkhead, vertical auger bearings, feed accelerator wear strips, bubble up auger, feeder house chain and sprockets, elevator chains and sprockets all changed in that time period, and most of the belts would be cracked and need changing. That doesn't count any of the actual part malfunctions such as hydraulic pump seals, cracked valve block, primary countershaft gearbox failure, crop loss sensor failure, tank loading auger gearbox bearings spinning in gear case, and holes starting to wear through feeder house floor.

Steiger Man

Posted 7/27/2018 23:55 (#6896937 - in reply to #6896915)
Subject: RE: Apparently your experience was MUCH different than ours.

Sunburst Montana

I think you are the lucky one. We've haven't had that many failures added together in the last 20 years of running JD combines. We've been averaging about 4,000 acres per combine lately.

dt4020

Posted 7/27/2018 23:55 (#6896940 - in reply to #6896915)
Subject: RE: Apparently your experience was MUCH different than ours.

Fairbury, NE (Southeast)

Sorry, but you got a lemon plain and simple.
We did have the cracked valve block.
Otherwise besides some mouse damage (self inflicted) and a hydraulic hose rubbing through just had wear items.

Itchy

Posted 7/28/2018 06:25 (#6897063 - in reply to #6896915)
Subject: RE: Apparently your experience was MUCH different than ours.

SW Iowa

WOW! You sir have my condolences. I have a 9670 with 750 separator hrs and I have not had anything like what you have had. You sure the hour meter is working? I agree with the above poster, the 70 series was Deere's best (Pre DEF)

DevinF

Posted 7/28/2018 12:45 (#6897635 - in reply to #6897063)
Subject: RE: Apparently your experience was MUCH different than ours.

Nwmo

Lol the 9770 has been a decent combine for me, the 9660 I had before is what I would call a lemon. I'm about ready to try another brand, but I'm pretty sure I wouldn't be changing anything except paint color.

roush9799

Posted 7/27/2018 20:07 (#6896542 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

West Central IL

9770's were good, but you can shell more corn in a day with an S680 if your running a 12 row. The power fold hopper is nice too.

jicasedeere

Posted 7/27/2018 21:37 (#6896737 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

SE SD

Had really bad luck with a 12' S680...List is too long to mention all the problems I had. I'd at least look at a 2014 or newer S680....much better & I'll say that adding def fluid is not a big deal at all.The Def machine gets way better fuel economy than the no def 'S' series. If a 2014 or newer one isn't in the budget, I'd stick with the 9770.

bobbyg

Posted 7/27/2018 21:52 (#6896766 - in reply to #6896300)
Subject: RE: Pros Cons - JD 9770 vs. S680

EC IL

I have a sweetheart for sale. There is no finer out there but it is higher houred. And we are a ways apart. 2011 w/ every option except power cast tailboard. Been thru JD inspection every year w/ no expense spared.

Edited by bobbyg 7/27/2018 21:55

Grhog

Posted 7/28/2018 08:01 (#6897213 - in reply to #6896766)
Subject: RE: Pros Cons - JD 9770 vs. S680

Se wisc.

5 speed? How Much?

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