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Re: Re: Re: Re: live power take off
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Posted by Gerald on December 10, 1998 at 08:28:14:
In Reply to: Re: Re: Re: live power take off posted by Dennis H. on December 09, 1998 at 21:57:52:
I tried a bush hog on my 8N without live power. Stopping at the end of a pass was a little exciting. In the 8N, the PTO shaft is an extension of the transmission counter shaft, so the flywheel effect of the bush hog blade takes over when you push in the 8N clutch to keep you going. If you run into a building or sturdy post, something breaks, tin work, front axle, or PTO shaft. The Roto tiller could have the same problem since its rotor is going to be spinning fairly fast. You can get over the problem with an over running clutch. If you run a bush hog on an 8N WITHOUTH and over running clutch on the PTO shaft you are NUTS! For use with a tiller, minimum speed is important. You don't want to rip through the patch at 3 mph when you want to make a finely ground seed bed. I don't know how slow you want to go, but I think probably 1 mph or less. I don't think the 8N goes that slow at PTO speed in first gear. And true live PTO should be more important for tilling because you want to have the tiller running before you lower it into the ground and before you begin moving and you want to stop moving and lift the running tiller at the end of the bed so the ends get dug as thoroughly as the middle else you have to till accross the path to get the bed done and you make a quagmire out of the path. The tiller may object to the stones on the path. There was an auxiliary after market overdrive transmission for the 8N, might be there was an underdrive transmission too. It could have been similar to get the speed down for tilling. I'm sure many an 8N has been used in truck gardening. I'm not convinced its the best choice today for the money. I'd be looking at the Farmall A, B, Cub (not lowboy cub), H, M. AC B, C, CA, or G. JD 40, 420, 50, 520, 530, 3020 (You get a lot more tractor for your money in a 3020 than all these others). All made to be fairly light and to have ground clearance and other conveniences for cultivating. Most can be adapted to use the same three point equipment as the 8N. If you can't live without an 8N (though I think you can do better) look for a last year 8N with side mount distributor. Tune ups are about a thousand times easier on that engine than the earlier models having the distributor down on the front of the engine behind the fan. Actually if its gotta be Ford, there's generations after the 8N that are better tractors, many with live PTO. To find out what's been made, look up Lester Larson's book about Nebraska Tractor tests, 1950 to 1975. It gives weights, horsepower and some transmission descriptions. You have to find the big book collection of Nebraska tests to find the details. But Nebraska test generally show the ground speed in each gear. Gerald
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