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 | rowneyt
Join Date: Jul 2004 Posts: 4 
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2004-09-14 96496
Help!! My new JD 4310 seems to have very small holes in the rotating balls at the end of the draft links. I had to hammer them to attach to a hopper and now one of them seems stuck tight. Prior to getting them attached to the hopper I went to my neighbors and they wouldn't fit over his tiller. Any ideas on how to loosen the one that's still stuck to the tiller? Should I take the link back to JD and have them increase the size of the hole through the rotating ball?
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 | DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada 
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2004-09-15 96523
The only device I can think of that might work is a large bearing puller.
Are the insides of the balls coated with paint? That would be enough to jam up the works. ....
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada
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2004-09-16 96571
The steel in the rotating balls is surprisingly soft, if you used a hammer to force one over a pin you may have caused damage, in the way of peening over the edge, to one of the balls, causing it to be stuck tight on the pin.
You might want to use a little heat to try to expand the ball slightly then (gently) tap the arm itself with a BFH.
As was mentioned, if the inside bore is filled with paint you might want to clean it out before trying again.
Best of luck. ....
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 | AnnBrush
Join Date: Mar 2004 Posts: 463 Troy OH
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2004-09-16 96582
Lloyd's axiom
Small hammer on - BFH off. ....
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 | beagle
Join Date: Jan 2004 Posts: 1333 Michigan 
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2004-09-16 96607
There are a couple tricks we use for stuck shafts. Dry ice on the end of the pin will shrink the pin maybe to the point where it will free up. The other option is to heat the ball to expand the ball and loosen it from the pin. If you are going to use heat, make sure you don't heat the ball past 600 degrees. Over 600 degrees, you can start to change the properties of the steel. If you use a propane torch, you should be safe. We prefer the dry ice trick, and it seems to work most of the time to free shafts from bearings. Good luck ....
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