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Farmall & IHC Tractors Discussion Forum
:

IH 666 pto slipping

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4440 puller

03-20-2006 11:35:35




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I have a IH 666 that I am working on right now that the pto was slipping when it was put under a heavy load. I made the mistake of not checking the pressure before it took it out because I figured it was the cluch slipping. Once I got into it someone else had put new cluch discs in it already before I got ahold of it. Anything i should look at in specific or put it back together and hope adjusting the pressure will fix it. Reason this is kinda confusing me is i found out the guy who worked on this tractor before is a IH mechanic who I sure would have thought fixed everything right. Thanks for any help or ideas.

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the tractor vet

03-20-2006 11:58:37




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 Re: IH 666 pto slipping in reply to 4440 puller, 03-20-2006 11:35:35  
I also should have said that like most tractors they have been turned up from factory spec. so if this one is cranked up then one should add that amount of percentage to the lock up pressure as lets say and 806 from the factory lets say 94 ponys but it was tweeked to 110 and factoy lock up was 245 it will start slippen just a littel under heavy loads so ya reset the PTO pressure to 250 myself mine is set at 275 and she will not slip even when she is killed . SO just some food for thought.

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the tractor vet

03-20-2006 11:43:45




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 Re: IH 666 pto slipping in reply to 4440 puller, 03-20-2006 11:35:35  
Well if it has done much slippen then throw them clutchs away and get new ones and put a gauge to it and adjust the pressure to atleast 185 now myself i like to bump them 10-15 lbs more on the lock up . I would advise that you get a book as to the assambly on the unit and fallow it to the letter .



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