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ne nebraska | I think you are going to be too slow. I put hydraulic drives on my 7000 16 row when I had it and i don't remember the exact combination, but I know I put a larger sprocket on the drive wheel(to speed up the countershaft) and I also had to gear it down(or up, not sure what is the proper term here, I had a larger sprocket on the driveshaft and as small of a sprocket on the pump as I could find) to get the pump to turn fast enough. If I remember right I was still only able to get it to 100rpm or so. John blue's website has a pretty good calculator where you can type in all the sprockets in the drive system and the radius of the tire and it will tell you what rpm the pump will turn and you can kind of play with the numbers until you get a sprocket combo that works.
http://www.cds-johnblue.com/flow-rate-calculator.shtml | |
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JD 7000 Planter Shaft Speed
