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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Pto driveshaft removal

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lost

05-17-2005 12:25:35




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You guys have given me some good direction as to why I cannot get the motor out. I took your advice and got a service manual. I see it says to remove the PTO driveshaft and mentions a special puller. Since I do not have the special puller is their any advice as to how to remove? I am curious, why does that shaft keep the motor from coming out?

Thanks




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J. Schwiebert

05-17-2005 17:51:35




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 Re: Pto driveshaft removal in reply to lost, 05-17-2005 12:25:35  
Just asking, but does your tractor have a Hydrapower? If so take it along with the engine.
If not I did not see where you unhooked the drive shaft that couples the engine to the transmission.



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MikeOwi

05-17-2005 15:49:17




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 Re: Pto driveshaft removal in reply to lost, 05-17-2005 12:25:35  
I made my own tool by threading the first 2 inches of a 1/2 rod about a foot long. I then took another portion of the rod, bent it in an L shape and welded to the top of the first one. I now have a T shaped tool with a handle that spins on and off easily and gives a little extra room to yank on it. As for removing the shaft, I think you cannot lift the engine high enough with the 2 or 3 speed attached to clear the tub if the shaft remains in. I have seen a local diesel shop pull just the engine, but they couldn't get the engine back in without pulling the shaft.

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drsludge

05-17-2005 13:51:43




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 Re: Pto driveshaft removal in reply to lost, 05-17-2005 12:25:35  
my dad likes to tell a story about when he walked into the shop of a local Allis chalmers dealer and they had the top of the tranny off and the tech had a hack saw in hand and was attemting to saw the shaft,now i dont have my book handy but i dont think this is right.
as for why the engine does not come out is just one of the great ideas that oliver had,you see the shaft goes throught the hydraulic pump and the chain coupler,and into the hydra power and then into a hub that is mounted to the back and center of the flywheel.You have less power loss when you keep a limit on the number of gears and angles you use(that is why a Oliver with the same engine as another make has more pto h.p)So it is very hard to remove the engine when you have a long shaft hooked to it as you have found out.
Now for the special tool,to be honest I have never taken a shaft out of a 1800,but I belive the special tool I used on my 1850 was a bolt,perhaps 5/8 I cant remeber anyway,I sure someone here can tell you,otherwise I can dig out my shop manual.good luck

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iwwrench

05-19-2005 19:14:03




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 Re: Pto driveshaft removal in reply to drsludge, 05-17-2005 13:51:43  
you need a slide hammer with a bolt on the end....you can hit backwards hards many times, or you can get lucky.rotating the shaft helps, remember to take out the o ring that is in the back a little ways. and that shaft is 5 ft or longer, you will know when it comes out



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Wrenchbender

05-17-2005 13:35:15




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 Re: Pto driveshaft removal in reply to lost, 05-17-2005 12:25:35  
No special puller is needed. You need some 1/2" all-thread or a long 1/2" bolt. Remove the round tin cover above the PTO output shaft. Remove an internal snap ring inside the splines.

Thread your bolt in the plug and pull it out. There is an o-ring in the splines that seals oil around that plug, remove it. Then you can thread your bolt into the PTO driveshaft. Move the PTO lever between the latched position and engaged. Pull the shaft back and out. If you're lucky it will come all the way out.

If it doesn't come all the way out. Put an impact on the bolt and turn the shaft while pulling back. this will line the splines up so the shaft will come out all the way.

The shaft runs all the way up to the flywheel. WB.

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old

05-17-2005 13:21:53




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 Re: Pto driveshaft removal in reply to lost, 05-17-2005 12:25:35  
Well if I knew what your tractor was I might know how to help but since I don't I can't. I just did the PTO shaft pull on my S88 a week ago to put new seals in my hyd pump so its freash in my mind how to do it to one of them.



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