Running airseeder with an 8070?

So it seems I am in a predicament found by many people who are also trying to run old iron and be modern. I have a clean solid running 8070 that I'd like to run 27-33ft of airseeder with. However, I don't have the hydraulic flow. Now I'm sure somebody else is doing it however it seems to be undocumented. I've looked into pto run Fans and engine driven fans. Both searches have yielded little to no information. I did design a system to use a pto pump with a 3-pt mounted reservoir. I then found out my mechanics brother bought a setup like I designed, but I can't seem to find it. Looking for any experience or opinions from the community. Thanks.

Edited by youngestfarmer - 21 Jun 2017 at 6:58pm

My problem is with lifting it. I have a friend with an 8550 who converted his cart too pto because he was losing too much fan speed lifting it.

It should but then your runs would be plugged so it's all for not really.

I can't quite imagine why your friend would be having troubles like that with his 8550. I've ran my concord the last two springs with my 8550, and don't have that trouble. I think that I have my relief pressure at 2,500 to 2,700 PSI, and I turn the flow control on the valve bank for the concord fan down, and the fan runs about 4 grand. Leaves plenty for lifting the concord. Have never plugged a run yet due to decrease in blower speed. Years ago, I pulled a smaller concord with the other tractors, mostly the 7580, with the same success. Darrel

Creston, I pull a 28 foot concord, and that's as big as I'll ever go with my 8550. 28 feet doesn't sound all that big, but first of all, my openers pull kind of hard, because I deep band anhydrous. So then hitch a 200 bushel fertilizer/seed cart on, plus a 1,000 gallon anhydrous tank, you've got a load. On some of my easier pulling ground, I could probably pull forty feet, and if my hard pulling ground had no hills, I could probably pull more, but with hills, and hard pulling ground, 28 is enough. I go in fast range, first gear, PD high, which comes out to 6 miles per hour, according to GPS. So, in other words, actual speed after wheel slippage. It's nice, because in a tough spot, I have the option to down shift the PD, which has gotten me by every time so far. On a side note, my son has had it happen to him a couple times, where one front wheel will start to spin, and the differential lock will kick in. He says that when both them front tires start to spin, it'll pull him through anything. .I imagine some day, he'll learn different, and it won't be pretty. Lol.
Oh, one other power robber is the hydraulic fan. My estimate is that the hydraulic pump turning the air seeder fan will use 10 to 20 horsepower. Doesn't sound like a lot, but it's still used. Darrel