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Removing spur center (Read 1,123 times)
 
Tom Coghill
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Oneway 2436, 3 HP 220V
Re: Removing spur center
Reply #15 - May 1st, 2017 at 11:45am
 
If you are applying heat, the heat should be applied to the outside (spindle) and the spur center should be cooled.  Not sure how that can be done effectively.

Another question is... when you get the spur center out, what are you going to do, mount a chuck? Roll Eyes

You bought this lathe??    Cheesy
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Lucas Williams
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Wooden. Beyond that, not a clue
Re: Removing spur center
Reply #16 - May 1st, 2017 at 10:48pm
 
Thanks for all the suggestions. Ill try some of them. And to answer Don Stephens question, it doesn't have a make and model since its custom built. Only the motor..
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Ron Sardo
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Re: Removing spur center
Reply #17 - May 2nd, 2017 at 6:51am
 
FWIW, applying heat to remove the center is a bad idea. It will cause more problems than it fixes.
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Ed Weber
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Re: Removing spur center
Reply #18 - May 2nd, 2017 at 8:39am
 
Ron is correct about over heating. It should really only be done as a last resort or if you have experience with this type of situation.

As to heating the shaft. Low heat, (well below changing the temper) can be applied to the spindle without issue. This can sometimes aide the migration of any perpetrating oil or loosen/soften whatever substance may be interfering with the taper.

Some parts may be damaged regardless of how you eventually have to remove the drive. It's up to you to decide which parts those are.
It should also be mentioned you can also remove the spindle with the drive center still inserted. Once removed it may be easier to assess the issue.
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Ed Weber
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Re: Removing spur center
Reply #19 - May 2nd, 2017 at 9:27am
 
I should add, when I say gently heat, I'm talking about using a heat gun not a torch.
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Jeff howell
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Re: Removing spur center
Reply #20 - May 27th, 2017 at 7:04pm
 
Looks just like my 1954 craftsman.  I just use a long screwdriver and a hammer to push it out from the other side of the headstock.
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