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Help!Pto Shaft Project

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Chris

08-08-2001 16:40:24




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I am going to install a belly mower on my Allis C. The mower is a shaft drive unit that was driven by a mid pto shaft. I need two things. (Actually I will need a slug more than that but am soliciting help on these two,to start with anyway!)The first is a source for a shaft about 24" long with a PTO spline on one end and a keyway or a standard spline (to attach a sprocket or bushing to) in the other. Also it needs to have machined surfaces for bearings on both ends or the entire length. Going to use it for a jackshaft to run the power forward to the midmount. The second thing is ideas on how to reverse the direction of rotation of this shaft. It will be driven by my rear PTO. But if I simply belt it to the shaft it will turn the mower backwards. I am considering using a roller chain and serpentining it around a couple idler sprockets. I was hoping one of you will go "Why don't you just use a_____ _____ _____ ." Fill in the blank guys! Thanks for reading all of this. Hope I explained it well enough. Do you ever have a picture in you head of just what you want to do and then try to explain it to someone??? Oh, one more thing (I knew it was going to be one of those one more thing kind of projects!) Does anyone know what the correct terminology is to describe a 1 3/8" PTO spline. I call these city bearing parts guys explain what I want and I can hear the blank look over the phone!

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Jerry B

08-11-2001 18:34:36




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 Re: Help!Pto Shaft Project in reply to Chris, 08-08-2001 16:40:24  
Well, there is always the hydraulic route using and engine or pto driven pump running a hydro motor attached to the gear box of the mower deck.
Might be a little pricey, but it may also be the simplest in the long run.



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Chris

08-10-2001 16:27:31




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 Re: Help!Pto Shaft Project in reply to Chris, 08-08-2001 16:40:24  
Thanks for the input guys. Unfortunately the belt drive won't work due to the gearbox on the mower being used for the input shaft to the drive spindle( Can't drive the mower without its gearbox in place).Really needs to be drive from its PTO shaft. Reversing the blades wouldn't work either as it is a side discharge mower. Blades must spin CW to throw the grass out. To add another wrench in the works I now found out that a Kubota mid PTO runs at 2500 RPM! Sound too fast to me but two dealers told me the same thing. Might just have to keep looking.....

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Dusty

08-09-2001 04:44:32




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 Re: Help!Pto Shaft Project in reply to Chris, 08-08-2001 16:40:24  
I would think instead of a chain you could use a v- belt and cross it, or maybe use a v-belt all the way and not the PTO shaft. Good Luck,
Dusty



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paul

08-10-2001 11:00:29




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 Re: Re: Help!Pto Shaft Project in reply to Dusty, 08-09-2001 04:44:32  
Machined shafts are spendy, not that a long belt is cheap! :) But if you look at other setups, they run a belt off the pto, bent 90 degrees on 2 idlers under the tractor, & drive the mower directly, no gearbox, just put the right size pulley on the vertical shaft of the mower. Cross the belt as needed to get the right spin. Make any sense?

--->Paul



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Jerry B

08-08-2001 18:28:54




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 Re: Help!Pto Shaft Project in reply to Chris, 08-08-2001 16:40:24  
The "city bearing parts guys" may be your biggest hinderance. If you can get hooked up with an ag parts dealer or supplier he may have everything you need, or atleast know where you can get everything.
At the very least he won't give you an invisible dumbfounded look!

Seriously, by hooking up with some one who deals in ag parts and equipment, you can gain an insight to other ideas and things to solve you problem. For instance, they may have a set of blades for the same model of mower you have but with the cutting edge reversed for clockwise to counter clockwise rotation or vice versa.

Just a thought.

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paul

08-10-2001 10:53:34




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 Re: Re: Help!Pto Shaft Project in reply to Jerry B, 08-08-2001 18:28:54  
Be careful of spinning the blades the opposite direction - the bolts holding them on can (will?) come loose & the blades will fly.... Do this conversion right!

--->Paul



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