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31st March 2015, 03:34 AM #16GOLD MEMBER
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The spindle MTthingy is called a drive center. The rod that goes through the hollow spindle is called a knock out bar. A steel rod that can be purchased from your hardware store / engineer's shop or salvaged from a discarded copy machine or printer will work fine. As big as will fit through the hole is best. Thinner might bend.
Soak with your 50-50 solution from both ends, heat the spindle nose with torch, hair dryer, heat gun, and give the end of the knock out bar a sharp whack with a smallish hammer, 8 - 16 oz. You want a fast hit to shock it rather than a heavy push from a sledge hammer. Put a rag over the drive center so it does not fly across the shed when it comes out.
If it does not come out with one or two whacks, heat again, soak more and leave overnight. Beating on the spindle is not good for the bearings.
When you get it out, wet the MT of the drive center with your 50 - 50 and shine it with 400 grit paper. Wipe off all the crud and wet again and stick it loosely into the spindle and rotate around, add more juice and turn more, increasing pressure. Remove and wipe off crud. Twist a rag and rotate in the MT socket of the spindle. Again with the wet MT drive center in the MT socket, and again clean. When it seats nicely and no more rusty or dirty stuff comes out, oil the male & female MT parts and wipe off.
Remove and oil several times a year and you will have little trouble getting it out.
If you should run the lathe a long time turning a spindle with a lot of pressure on the tailstock, the spindle nose might get a bit larger and when cooling grip the MT of the drive center. Heat the spindle nose and drive out the drive center as above.
See here for wood turning terms:
https://www.google.com/?gws_rd=ssl#q...ng+terminology
Starting out there are no dumb questions.So much timber, so little time.
Paul
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31st March 2015 03:34 AM # ADSGoogle Adsense Advertisement
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4th April 2015, 08:56 PM #17Member
- Join Date
- Feb 2012
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- Bargara Queensland
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[QUOTE=WaggaSteve;1854387]Thank you and a dumb question. Cant even remember the right term but I am used to there being a hollow in the head stock spindle so you can use a bar to push out the MT thingy that holds the wood at the head stock end - (yeah I know dont get too technical . It appears conspicuous by its absence and I am having trouble removing the head stock thingy (boy do I feel dumb here) but if it makes sense any advice on removal
Steve
Steve, check your emails for the Coronet manual. Doug
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5th April 2015, 11:23 AM #18Member
- Join Date
- Jan 2015
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- Anna Bay, NSW, Australia
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- 98
Thanks to Doug and the rest
Just a quick public thank you to Doug for the time and trouble to find an electronic version of my lathe manual for me.
Also a thank you to the group. Your advice and assistance is wonderful and much appreciated
Steve
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