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nightowl

nightowl

Member
Joined
Mar 2, 2008
Messages
323
Location
Lexington, Virginia, USA.
I have a Jet Mini that I have been using to buff my pens with using the Beal Buffing System. I have had it in the lathe for several months and now I cannot get it to release in the head stock. I think it may have corroded or something. The shaft on the outsides looks good but it will not release with the knock out tool, even tapping it with a hammer. Any ideas on solutions?
 
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I have tipped it up and have squirted som liquid wrench into the knock out hole. I am going to let it sit overnight and see what happens. I am afraid I am going to get the lubricant on the belt and pulleys. I may have to solve that problem too.
 
Taper can set very tight if not moved for a long time. the penetrating oil will likely help, or the classic -- get a larger hammer -- after you make sure you have something soft and fuzzy in place to catch the flying taper when it comes loose.

(been there and had to do that -- but a tee shirt was not offered)
 
I bought a lathe from an older gentleman, To get the spur bit out to the head stock took WD40, a large piece of wrought iron, and a large hammer. To get the center out of the tail stock we had to out the entire pin in a 2 ton press.
Just be careful when it finally comes out, It will be fairly sudden and come with some force.
 
I tend to go with the bigger hammer approach myself, but you do want to be a little careful with what you are actually contacting the end of the shaft inside the taper with, it should be reasonably flat and smooth, and as large as you can get through the knockout hole. anything rough, pointed or too small will tend to mushroom the end of the shaft taper and not let it seat well later.
 
And when you do get it out be sure to polish the MT taper and the opening in the headstock ... otherwise you will probably be right back with the 'large hammer!'

I have has great success using a plumbers brush - the one used for cleaning the inside of copper pipe - and WD-40 is a great lubricant to use afterwards.
 
If I were pumping a taper and headstock full of penetrating oil, I would first remove the belt and wrap the pulley(s) with masking tape.

If you "slick up" a groove belt and it slips and catches in a bad place, you have turned an aggrivation into a big problem.

Additionally, once the Beall has been removed, a complete cleaning of the taper should be done to remove any rust and gunk.
 
Thanks guys for all the tips. I got it loose. I let it soak for about 24 hours in Liquid Wrench and then used a nice hammer and rod. A few good whacks and it slid right out.
 
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