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Dalton, OH | I've never run a 630 JD head until this year. It was brand new at the beginning of the season. Used to run a 930F. I'm running it on a 9670STS and I'm having trouble breaking a lot of guards. I've run 400 acres with it and probably broke 20-25 guards. On my old 930F, I ran the same ground plus another 600 acres a year and would maybe break 2 guards the whole season. These are not rocky conditions. I have the short-long guards with the short-long sections. It seem the tops of the guards are what is breaking off. I've talked with my Deere dealer and they said to check the hold-dows and make sure they are adjusted to .002". I've done that and I'm still have serious issues. One thing I've noticed is that the cutterbar doesn't seems straight when you look at it from the end. It goes up and down, wavy-like, across the head. Is this normal? Its been like that from day one. All ideas would be appreciated.
Thanks, |
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north central indiana | Get the SCH. Then you will probably not break ANY guards at all. The old 3" SCH system will blow the stock JD system out of the water. We bought 3 brand new 635's ran them one season and replaced all the cutterbars with the SCH roller system. Almost bullet proof. And ALMOST zero maintence. Believe it or not I had a shopping cart full of JD guards we took off the heads. The boss bought the 15 year old daughter her own 9760 and a new 635. Did not convert the 4th 635 to the SCH and in two years the shopping cart is ABOUT OUT of its inventory.
I by no means sell this SCH system, but do know that it works very well. Take it for what its worth, just our experience.
Have a good on,
DeereTopher |
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Fairview, MT | the cutterbar will be wavy, that is how the flex head flexes.
are you breaking guards in the same spot? or anywhere on the head?
one thing to check would be the fore/aft tilt of your feeder house. if this is incorrect, it could be putting a major pitch on the cutterbar.
how you adjust this is, raise or lower the feeder house until the pivot bolt for the fore/aft frame is 34 inches from the ground. then use the turnbuckles to make the front face of the feeder house perpendicular to the ground |
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north central indiana | Brand new head, and a WAVY cutter bar???? Wow all the new JD heads that have showed up at our farm brand new were always very straight till we started crunchin rocks. The JD dura twin just stinks! They will go back to a 3" knife before long, I would allmost gaurantee it. To much daily maintence. We actually did convert all of our heads over to the MacDon FD 70. The MacDon 3" knife and guards are ALMOST as bullet proof as the SCH. Again good luck! DeereTopher
Edited by DeereTopher 10/12/2008 20:55
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| love the twin cut knife, never had any issues with guards |
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North Central Iowa | Great head until you cut notill beans. Then it looks awful. |
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NE SD | It does? We don't see much difference here. If you're breaking too many guards you are either running the head too far pitched forward or are not running enough pressure. We have rocks on half our ground and definitely do not break enough guards to pay for going to a system that might not do as good of a job cutting. |
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southern Illinois | You need to pitch your head back by adjusting the throat bolts and get you sickle out of the dirt a little. |
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northeastern Ohio | Scott,
We converted ours over to the SCH after fighting with JD system for two years. We must have broke at least 20 guards every season and it is a pain to adjust the holddowns EVERY day. We have not broke a single guard since converting.
Tilting the head back MIGHT get you to the end of the season with LESS breakage. Good luck. |
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north central indiana | Chad glad to hear your dura junk works good in no till. We had terrible lookin no till fields that the dura twin cut in. The corn stalks that we drilled our 15" beans in, would constantly push beans over because the stalk would not fit into the dura twin knife. Then Deere told us to use the long short dura twin knife. Worked a little better but still did scabby jobs in no till.
And we had tried to pitch our heads every way tried more pressure less pressure. All FOUR of our heads done the same scabby job. The only thing that helped with the scabby job was the long short and allways keepin the knife hold downs adjusted. Deere said well your just gonna break guards in less than ideal conditions. SCH will make you money in no till and rocks.
Have a good one,
DeereTopher |
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Boone, Iowa | I have been running the SCH setup on our IH 1020 head for several years. I will agree that guard breakage is very minimal and sections are pretty durable also. If the sections or guards do break, they are easy to change. The only problem I have encountered and could not find a solution, is that the SCH system did not cut as close to the ground as the IH 1 1/2" sickle section setup that was on the head when purchased. This year, I installed the Case-IH 3" system. While it does cut noticeably lower than the SCH, I have encountered numerous section and several guard breakage. I have to decide the pros and cons of both. |
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Central Minnesota | I also have a SCH on a 1020 and wish it would cut closer. Supposedly there is a way that you can install it so that you put the guards on upside down an gain an inch closer cutting. going to check into this for next year.
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SE South Dakota | I run two combines in soybeans, with a JD 920 and a quite new JD 930 F flexheads. This summer I installed the SCH cutterbar system on only the older 920 head as I thought the newer 930 F had just too good of parts to change out. Each head has been cutting soybeans side by side, always in the same field this fall. Well we have replaced at least 2 dozen gaurds and a few more sections on the JD 930F with the original JD cutting parts and only one guard and one section on the SCH system. I think I must have hit something nasty to break the guard on the SCH, as well.
No question in my mind that the SCH is one quality cutterbar and I probably will switch out the 930 F next season. I would have no problem telling anyone that the SCH cutterbar is the best purchase I've made this year. I thank those on this board that spoke highly of SCH this summer when I asked!
Anybody need my used JD wobblebox??
Jim J |
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| I will agree with Chad this is my 5th season with a 635 and the number of guards I break is very few probally 3-4 per year unless you really hit something nasty have combined over 1000 acres this year already and have only broke 2 guards and 2 sections and this is on some pretty rough ground (all custom work) it is not nearly as smooth as I would have my own it is all no-till corn stalks and the only thing they have done is run a land roller over it push rocks in and bend the old stalks down and it cuts great. Dennis SEND |
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north central indiana | Well heck ya Dennis, if we rolled every acre we cut to push rocks down and flatten corn stalks then we would probably not had the issues we had. But so far there has not been to many rollers in this part of the country. Agco had this stupid tiger tooth stuff long time ago! Did not work well then and does not work well now! Look at the post below here about wear. There are a boatload of 600 series heads in the area tons of them have the SCH on them. The SCH is what they put stock on a head that is sent to South America, not sure why.
Have a good one,
DeereTopher |
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north central indiana | Heck Jim, we were always happy with our stock 3" on the 900 series heads. I bet now with the SCH your gonnna put on there that will be the ultimate set up for cuttin beans and not wrenchin on cutter bars. Good luck with the 930.
Have a good one,
DeereTopher |
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Boone, Iowa | Running side by side, does the SCH head cut as low as the Deere sickle? |
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| I have an SCH on an Agco 9850 flexhead. I agree that my neighbors JD, CIH heads seem to cut closer. Not sure if it is the guard design or the way my poly skid plates are designed. It seems that JD & CIH poly seems to be flatter where my poly seems to drop down a bit behind the cutterbar. If you figure out how to turn the SCH guards upside down let me know. |
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SE South Dakota | Not sure I can answer that fairly because the SCH is on a JD6620/Dial-a-matic and the JD 930stock cutterbar is on a JD 9550 with the new style header height system (can't remember the name).
I will say that alot of cutting low or not will have to do with adjustments made to the head and how everything is set up IMO. Also field conditions make a bit of differance. Last years performance verses this year with the SCH, well it was quite a bit cleaner looking cut of the field. I think the SCH gearbox makes quite a differance in the cut as well. The gearbox has better action than the JD wobble box. The JD wobble box stops at each end of every stroke wereas the SCH is a constant motion.
I was told that every new 600 series JD cutting head built and shipped overseas come from the factory with the SCH cutting system. The customer demands it.
Jim J |
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SC Miinnesota | Deere topher glad you like yours wanna buy a used 35' setup cheap or if you have one of your Jd bars I'll trade you. I don't know what were doing wrong but we hate ours. "easy to replace sections", yea right. Seems like we always have to struggle to get the gaurds off to change a section. In 1700 acres of beans this year we broke the cycle 3 times, replaced i don't know how many gaurds and sections. The gaurds are pointed down and like to pick rocks. If Jd bars are even higher maintenance I'll go to all corn or hire my beans combined. |
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NE SD | I wouldn't bet on it. Like I said, I've never heard of anyone having as much trouble as you. We certainly don't roll everything.
 (Harvesting%20down%20grain%202008%20Yuma,AZ%20089.jpg)
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 Harvesting%20down%20grain%202008%20Yuma,AZ%20089.jpg (100KB - 353 downloads)
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Saginaw Michigan | i have my SCH knife upside down. second year, and it cuts very close... too close acutally. you can run your knife flat, instaed of having the to pitch it way ahead to cut close. the downfall of the upside down knife is that it is harder to change gaurds and sections, cant run the rolllers on the wear bar, sections wear out much faster since they are in the dirt more, and the field absolutly must be rolled if it contains more than 1 rock.
i will post pictures of it tomorrow. there is one guy at S&I,( the SCH dist) that has the instructions how to do it. it is quite time consuming to convert, as you have to trim every skid plate, and wear bar to fit upside down, but overall it is worth it, if you want to cut close
-mike |
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north central indiana | Chad! If that is the dura twin knife that you are using, then ours was quite a bit different! You have no tops on them guards to break off!!!! Maybe your drapers use a different guard then the 635 Hydra flex?? I have used a couple kinda like that on the FD 70 that i run and there really is nothing to break on them! On our 635 h flex's that we ran there were absolutely no guards on there that resemble the pic you showed!
Have a good one,
DeereTopher |
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NE SD | I wish that was my head. That's a 40' hydraflex draper. Hopefully be selling them for 2010? The extra width would have paid for them here this year in losses we're experiencing. Probably would be done by now. |
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Dalton, OH | Thanks for the replies. I checked and my head is correctly tilted at the feederhouse. I'm really thinking that the SCH system is the way to go next year. For this season, I guess I'll just have to get along. Its amazing how well it cuts even with the top of the section broke of. Probably continue to run that way for a while. $30 a guard for the high-wear ones is crazy!!!
Thanks,
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SE South Dakota | "easy to replace sections", yea right. Seems like we always have to struggle to get the gaurds off to change a section.
JD9630... I'm going to have to agree with you on this above statement. It is much easier to change a guard and/or section on the old JD than the SCH. The guards do not just fall off! |
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| Just get the guards from Shoup ordered a bunch and I think they were only 12 bucks look identical haven't used any yet but assume there a good quality guard also. Dennis SEND |
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Merrill, WI | The shoup ones are not as sharp on the side and they will break the tops off easier. I did not care for the shoup guards even though they were less than half the price. They just break the tops off easier. I always felt the deere guards worked great, yes you had to check your gap but I kept my gap really tight to the bottom of the rock guard. Also we have all our ground rolled with a large summers roller and never had very many issues. The only time I broke many guards was when the hmong left some ginseng cable in the field and that will break tops off right away. But usually I would only break about 3 to 4 guards for around 1600 acres of beans. |
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New JD 630 head-beaking too many guards!!!
