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  #11  
Old 02-16-2017, 08:54 PM
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Jeff in Pa Jeff in Pa is offline
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Originally Posted by J-Mech View Post
You don't need a shear pin.

I'd just weld that shaft together. That would help.
Would this work?

If I have this correct, a single spirol pin hole on the pump side. That coupler on the pump side and a splined coupler on the opposite end. Both couplers welded to shaft. The spirol pin would be the "weak link" or consumable part.

What do you think?
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  #12  
Old 02-16-2017, 09:07 PM
J-Mech J-Mech is offline
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That's what I would do Jeff.

Only thing that would be better is if it was splined on the pump end.
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  #13  
Old 02-16-2017, 09:25 PM
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That's what I would do Jeff.

Only thing that would be better is if it was splined on the pump end.
Thanks Jon

While splined on the pump end could be good, I think you do need a weak link to protect expensive parts.
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Old 02-16-2017, 09:33 PM
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If I was going to build one for myself I would figure out a way to have a cv or a love-joy device by the pump for misalignment issues. Frame twisting and such would be hard on that pump I would think. But I worry about things maybe too much.
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Old 02-16-2017, 09:40 PM
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Thanks Jon

While splined on the pump end could be good, I think you do need a weak link to protect expensive parts.
I said it wrong. My bad. Splines are on the pump end. Wish it had splines on the PTO end.

It doesn't need a shear point on the tractor. Gear drive PTO's don't. The implement should have the shear pin. Should be able to get full engine power to the PTO. Besides, the rear PTO is belt drive.
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Old 02-16-2017, 09:42 PM
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If I was going to build one for myself I would figure out a way to have a cv or a love-joy device by the pump for misalignment issues. Frame twisting and such would be hard on that pump I would think. But I worry about things maybe too much.
I don't think you'll have any frame flex in the 6" between the pump and PTO. Your over thinking it Terry.
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  #17  
Old 02-16-2017, 09:48 PM
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I don't think you'll have any frame flex in the 6" between the pump and PTO. Your over thinking it Terry.
Plus I just went and looked at the 2182 and space is limited by the pump.
A love-joy that could handle 20 or so hp is too large in dia.
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  #18  
Old 02-17-2017, 02:03 AM
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I'm sorry I'm not real knowledgeable in this. But would a lovejoy work in this situation or would it just beat it to death after a short while?

Edit: I just now seen the post ahead of me. Ignore the question lol
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Old 02-17-2017, 07:05 AM
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Just for kicks, I looked at how Johnny Deere PTO's are built. Looks like the shaft (#25) is one solid piece.
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Old 02-17-2017, 08:26 AM
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Jeff, if you are interested I can send you one of my rear shaft assemblies with the new couplers I purchased. Maybe you can make an improved version that you could add to your list of goodies that you make for us.

Here are the 2 shafts. The black one is from the hydro to the rear bearing assembly. The other one is the one inside the bearing housing that the pto attaches to at the rear. I wonder if you could eliminate the middle coupler and just make 1 long shaft?

DSCN1144.jpg
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