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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
:

Oliver 550 pto clutch problem

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xkross

04-07-2021 10:25:45




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My pto was working fine until it would not engage. The tabs were broken off of the pressure plates so I removed the upper bell housing and replaced the plates. It will lock up just fine, but my concern is that when I push the pto lever forward, the entire clutch pack comes out of the drum. Is this normal, or do I have another problem?




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rrlund

04-07-2021 14:17:21




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 Re: Oliver 550 pto clutch problem in reply to xkross, 04-07-2021 10:25:45  
There's a set screw in there that has come loose. Holds the whole thing to the shaft. Seems to be a bit of a common issue unless you put a shorter set screw in and put another one in on top of it to lock it in.



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ollie gm

04-08-2021 09:42:14




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 Re: Oliver 550 pto clutch problem in reply to rrlund, 04-07-2021 14:17:21  
Does this apply to my Super 55 also? Thanks!



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rrlund

04-08-2021 13:09:20




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 Re: Oliver 550 pto clutch problem in reply to ollie gm, 04-08-2021 09:42:14  
Yes, same thing.



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xkross

04-07-2021 19:49:52




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 Re: Oliver 550 pto clutch problem in reply to rrlund, 04-07-2021 14:17:21  
I tried to tighten the set screw, but I didn't think about it being double stacked. I'll check it tomorrow, but I bet that that is the problem. Thanks for your help.



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rrlund

04-08-2021 04:21:14




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 Re: Oliver 550 pto clutch problem in reply to xkross, 04-07-2021 19:49:52  
If memory serves me right, there's a tapered hole in the shaft that it goes in to also.



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xkross

04-08-2021 12:17:11




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 Re: Oliver 550 pto clutch problem in reply to rrlund, 04-08-2021 04:21:14  
Found the problem... someone tried to drill out the original set screw but didn't get it all. Thanks for the help!



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xkross

04-12-2021 15:50:25




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 Re: Oliver 550 pto clutch problem in reply to xkross, 04-08-2021 12:17:11  
I have the set screw repaired, but now I can see that it is the front end of the pto shaft that is moving. The back half is staying put. There must be something locking the two together. will the shaft pull out from the back, or do I need to split the tractor?



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