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beef farmer
 | Posted 1/28/2011 12:26 (#1577687)
Subject: J.D. 7000 planter population | |
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Northwest Illinois
| I plant with a 7000 in 30" rows. My planter book gives me the choice of 32,000 or 35,600 for population. Does anyone know of a way to get that 34,000 population other than playing with my tractor speed and relying on skips. Thanks |
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Gambler
| Posted 1/28/2011 12:48 (#1577722 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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| exactly the setting i'm wanting for some ground this year hope someone has a setting for 34,000 subscribed |
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Tommy
| Posted 1/28/2011 12:59 (#1577738 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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Iowa | I probably don't have it anymore(the number of teeth), but I made a new sprocket that gave me 2or3 choices in between. I removed a sprocket I never used to make room. It was a simple math problem, not very hard to figure out. Worked perfectly for years. |
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4ethanol
| Posted 1/28/2011 13:21 (#1577779 - in reply to #1577687)
Subject: Re: J.D. 7000 planter population | |
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Hoxie, KS, Northwest Kansas | i cannot say exactly for a 7000 because i am looking at a book from a 1700 finger pickup but it shows me that on that planter if i run a 24 tooth driver and a 27 tooth driven i get a pop of 34,237 in 30" rows. I dont know if that will hold true with a 7000 but if you will give me the driver and driven teeth numbers for the 32,000 and 35,600 pop i can figure out a custom tooth sprocket that might fit your operation. Edited by 4ethanol 1/28/2011 14:04 |
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Gerald J.
| Posted 1/28/2011 13:56 (#1577841 - in reply to #1577687)
Subject: Re: J.D. 7000 planter population | |
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| I replaced a driven sprocket. I recall the new driven sprocket was 22 teeth for a 40 chain though my planter uses 2040 chain in the transmission. I made it from a weld-a-sprocket with a hex hub. My planter spilled about one extra seed for each 17 feet of row and so I ran out of seed before I ran out of field. But except for that extra seed it did a picket fence spacing. Gerald J. |
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00rooster
| Posted 1/28/2011 14:04 (#1577850 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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| Throw the gears for the 7000 transmission in the junk pile, and get yourself the 7200 sprockets. Do you have a monitor that accurately counts population? You won't have a table to choose your gear combo, but you can make one yourself with a spreadsheet(if you don't know how find a student and they could probably do it). You need loaded radius of tire, and count all the sprockets from the drive sprocket on the wheel to the final sprocket on the meter and the number of fingers on your meter. Here is how you get to use the math that you never thought you'd need when you were in school. The 7200 sprockets will give you a much better assortment of populations to choose from.
Or...If you have a monitor that counts seed you can guess and experiment until you hit your target pop. and then write down it down somewhere you'll be able to find in later. That's what I did. Edited by 00rooster 1/28/2011 14:05 |
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He-mann
| Posted 1/28/2011 14:13 (#1577866 - in reply to #1577850)
Subject: RE: J.D. 7000 planter population | |
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North Central Iowa | I have changed mine to the gears from a 7200 also. worked slick and just ask the parts guy for the population page from JD. If i remember correctly they have done the calculations for you but it isnt the same as the 7200 ( i could be wrong). The parts guy had to do some digging but was able to do it. North Counrty equipment in Osage Iowa are helpful and know what you need. Ask for Dale. |
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beef farmer
| Posted 1/28/2011 15:21 (#1577947 - in reply to #1577779)
Subject: Re: J.D. 7000 planter population | |
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Northwest Illinois
| The sprocket combination for 30,800 is driver-30/driven26........32,000 is driver-22/driven-18.........35,600 is driver-30/driven-22.......37,700 is driver-26/driven18. |
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4ethanol
| Posted 1/28/2011 19:01 (#1578314 - in reply to #1577947)
Subject: Re: J.D. 7000 planter population | |
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Hoxie, KS, Northwest Kansas | Beef farmer are those the exact numbers? Like my book says even down to the individual seed like 34,237. And the only reason why I ask is because my ratios are close but they are not exact when I'm using your numbers you gave me. The more exact the info you give me the closer I can get to your desired rate of 34,000. Otherwise if they aren't precise you could end up with 33,500 or 34,500 just because the ratios aren't exact by rounding. I'm sorry if that got to deep for you but I want to make sure on my end that the recommendation I give is accurate to the best that I can do. |
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Gambler
| Posted 1/28/2011 19:11 (#1578331 - in reply to #1578314)
Subject: Re: J.D. 7000 planter population | |
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| settings for 30" rows
(7000 pop.jpg)
Attachments
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7000 pop.jpg (95KB - 3633 downloads) |
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Gerald J.
| Posted 1/28/2011 19:22 (#1578344 - in reply to #1578331)
Subject: Re: The numbers in the table have been rounded.So there's some error in interpolating them. NT | |
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| Gerald J. |
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Gambler
| Posted 1/28/2011 19:25 (#1578354 - in reply to #1578344)
Subject: Re: The numbers in the table have been rounded.So there's some error in interpolating them. NT | |
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| what would a 24 / 18 work out too myself would rather be 33500 then 34500 |
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Sodbustr
| Posted 1/28/2011 19:27 (#1578357 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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Western Iowa | Run a 22 driver/ 17 driven, should give right at 34000. give or take 100 or so due to mathematical rounding I can show my work if you want, or possibly come up with another combination if you would like |
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Sodbustr
| Posted 1/28/2011 19:29 (#1578361 - in reply to #1578357)
Subject: RE: J.D. 7000 planter population | |
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Western Iowa | double checked my math, will be about 33900 |
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Sodbustr
| Posted 1/28/2011 19:31 (#1578368 - in reply to #1578354)
Subject: Re: The numbers in the table have been rounded.So there's some error in interpolating them. NT | |
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Western Iowa | That would give you about 35000 |
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tryin
| Posted 1/28/2011 19:47 (#1578401 - in reply to #1578361)
Subject: RE: J.D. 7000 planter population | |
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| We are up against the same big gap with 36 in. rows. Will that sprocket combination get us in the middle too? |
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Gambler
| Posted 1/28/2011 19:49 (#1578407 - in reply to #1578361)
Subject: RE: J.D. 7000 planter population | |
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| what would a 28 / 22 be since we have a 28 we could move up |
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spike
| Posted 1/28/2011 20:31 (#1578512 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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| This is for Beef Farmer, I would like to do the same thing you are trying to do. What Driver and Driven sprocket have you decided on. Please post your answer here after all this discusion I really want to know the answer. Thanks Spike |
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Gerald J.
| Posted 1/28/2011 21:18 (#1578644 - in reply to #1578401)
Subject: Re: J.D. 7000 planter population | |
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| Yes, but the population would be 34,000 x 30 / 36 or 28,300, give or take the round off in the original data. Gerald J. |
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drillbitsmith
| Posted 1/28/2011 21:32 (#1578684 - in reply to #1577687)
Subject: Re: J.D. 7000 planter population | |
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| Those 7000 planter transmissions are better suited for 20 inch rows. You look at the chart for 40 inch rows & it will be doubled. Funny how it works better for something that it wasn't even designed for ! |
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Sodbustr
| Posted 1/28/2011 22:05 (#1578775 - in reply to #1578407)
Subject: RE: J.D. 7000 planter population | |
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Western Iowa | On 30's it would be about 33500, actually just a hair under. |
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martin
| Posted 1/28/2011 22:14 (#1578807 - in reply to #1578775)
Subject: RE: J.D. 7000 planter population | |
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| The way I calculate, 18 driver/ 14 driven would give about the same ratio (close to same pop). Can those sprockets be flipped that way? Is there any problem using 2 small sprockets that way? (Can enough slack be taken out of the chain? ) I'm guessing it should be okay, since the chart shows them in reverse ?! |
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4ethanol
| Posted 1/28/2011 23:30 (#1578968 - in reply to #1577947)
Subject: Re: J.D. 7000 planter population | |
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Hoxie, KS, Northwest Kansas | beef farmer go with sodbusters 22/17 that is the closest ratio i could come up with too but he beat me to it. and if the 33,900 isnt close enough for you to get to 34,000 you could always let a couple psi out of the loaded drive tire so it would spin a hair faster. But if I were you I would just stick with the 33,900 |
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PatCMO
| Posted 1/29/2011 00:17 (#1579038 - in reply to #1577687)
Subject: RE: J.D. 7000 planter population | |
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Pilot Grove, Missouri | If my calculations are correct a 26 driver 20 (would have to find/make a sprocket) driven would be 33,900. 28 driver 22 driven would be 33,200. 18 driver 14 driven would be 33,600. Patrick |
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lorenand
| Posted 1/29/2011 01:15 (#1579099 - in reply to #1579038)
Subject: Re: J.D. 7000 planter population | |
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Northwest Iowa | Here is a copy of my thread where I posted a pic of my 7200 transmission on a 7100. |
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TractorFixerGuy
| Posted 1/29/2011 09:28 (#1579340 - in reply to #1578807)
Subject: RE: J.D. 7000 planter population | |
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Freeburg IL
| the larger the sprokets the smoother the turn. don't go to small or it will be a bit jumpy |
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Gerald J.
| Posted 1/29/2011 10:34 (#1579453 - in reply to #1579340)
Subject: Re: There were two different sets of sprockets used for the JD 7000. | |
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| There were two different sets of sprockets used for the JD 7000. Early planters used 2040 chain and special 2040 sprockets with a low tooth count. Later planters used 40 chain and 40 sprockets with twice the teeth. 2040 chain will run on 40 sprockets but you have to keep track of that factor of two on the tooth count. Gerald J. |
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west illini
| Posted 1/29/2011 10:45 (#1579481 - in reply to #1579453)
Subject: Re: J.D. 7000 planter population | |
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IL | On my Kinze/jd7000 planter, I have the 40 tooth sprockets but have always ran 2040 as that is what the book called for. Same as what comes off the drive wheels. I tried 40 on the drive wheels and had it roll of the sprockets, so went back to 2040. It stays on unless trash gets around the sprocket, and having spring loaded idlers. Now the question: if I install a trash shield, am I better off with the 40 chain? less vibration due to shorter links? |
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beef farmer
| Posted 1/29/2011 21:02 (#1580353 - in reply to #1578512)
Subject: RE: J.D. 7000 planter population | |
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Northwest Illinois
| I guess I will go to my John Deere dealer (whom I have a far amount of confidence and trust) and discuss the 7200 gears with him. Other wise I will look into either 22/17,26/20 and maybe 28/22,18/14. I'm just not sure yet. |
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Gerald J.
| Posted 1/30/2011 13:42 (#1581370 - in reply to #1577687)
Subject: Re: I checked my manual this morning. 13/26 driver 10/20 driven. | |
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| I checked my manual this morning. What I used in 2007 was 13 driver, 10 driven for 2040 chain so I used a 20 tooth 40 sprocket with a hex hub. It replaced a double sprocket because it was wider. I needed the original sprocket for beans in 2008 so I took the new sprocket out. I checked several spots in the field and there were consistently 34 evenly spaced plants in 17'4" of samples along a row. There was also one oddly spaced plant where the planter spilled an extra seed and that extra seed is what ran me out of seed before I ran out of field. Gerald J. |
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Posted 1/28/2011 12:26 (#1577687) 
7000 pop.jpg (95KB - 3633 downloads)
