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Discussion Forum

Need help removing PTO driveline

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Scotty

10-09-2001 17:06:50




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I'm working on cleaning up a McC-Deering C21 mower to mount on a SuperC. The yoke on the back half of the driveline
where it connects to the bearing box is just plain shot and needs replacing. The parts book indicates the yoke and shaft are
threaded to the spindle on the front of the bearing box. Do any of you old hands have any good advice on how to break that
thread loose? I've cleaned up the leaked-out oil and soaked it in various stuff to loosen up any rust and have had enough
wrench and cheater on it to break off a good punch in the bearing box. It's almost as if there's a a key or something holding it.
Any and all thoughts/suggestions will be much appreciated.

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gary

10-10-2001 10:37:36




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 Re: Need help removing PTO driveline in reply to Scotty, 10-09-2001 17:06:50  
If you have a torch, heat the yoke cherry red and then try to unscrew it. In cases like yours I like to use a hammer while keeping it hot with the torch. Also, are you sure it's not keyed or splined? That you are unscrewing in the correct direction?



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Scotty

10-10-2001 12:15:04




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 Re: Re: Need help removing PTO driveline in reply to gary, 10-10-2001 10:37:36  
Thanks! I won't be able to get at it until tomorrow night, but I've been thinking the last of your suggestions is likely the one that's going to do the trick. The one thing I had thought of but hadn't pursued was that it has got to be a left hand thread--else the torque would turn it off every time. Dad never did call me smart! I will heat and hammer at it some though before I sail into it. Again, many thanks!

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paul

10-10-2001 17:56:43




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 Re: Re: Re: Need help removing PTO driveline in reply to Scotty, 10-10-2001 12:15:04  
Dad & I heated a flange on a combine shaft red hot - not just dull, but _red_. we beat & pounded & pulled & frankly bent on it. Finally talked to a pro about it, he looked at it, & said, "Isn't that a thread showing there where you pulled it up a bit????"

Well, took it back home, put a pipe wrench on it, and with all we had done to it, it screwed off pretty easy. :)

Moral: None of us is all that smart, we've just done more dumb things than others..... ;)

--->Paul

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paul

10-10-2001 12:12:21




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 Re: Re: Need help removing PTO driveline in reply to gary, 10-10-2001 10:37:36  
That's a key - if it is threaded, it will turn in the opposite direction it normally runs. That can throw a person...

Heat can do some wonderfull things to a stuck piece of iron...

--->Paul



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