- Joined
- Jan 11, 2013
- Messages
- 1,821
Hey Folks
A beautiful Cushman 6 inch 3 jaw chuck that came with this Heavy Ten I got last week.
It's a little stiff, and the previous owner mentioned it could probably use a rebuild, so today is the day. I have some pics below of the disassembly. It is a much nicer chuck than I have owned, as it came apart a totally different way than the "semi-steel" chucks I am used to! Hah hah
I DIGRESS-
It has a factory grease fitting on top.
(EDIT- I found out after writing this that it MAY be an oil Zerk fitting)
Can I use the same PTFE/Teflon grease I would use in my backgear/cone pulley? I have heard of "chuck grease", but don't know if it is different at all.
I want to reassemble it packed already, and also want have the right stuff on hand to keep it up. It sure would help if I could just keep one grease gun at the lathe for everything.
Thanks folks!
Bernie
Grease fitting
When I finally found the seam, I really had to rap hard with this little brass hammer through the rag to split it:
I never had a chuck that split in the middle like this! Very tight tolerance... I could barely see the seam:
I should have shown the dirty scroll and parts first!! But I got too carried away. Suffice it to say, despite this being a well cared for and visually "clean" and high quality chuck, it was dirty, gunky, with hardened grease inside. Only some small brass swarf on the scroll:
A beautiful Cushman 6 inch 3 jaw chuck that came with this Heavy Ten I got last week.
It's a little stiff, and the previous owner mentioned it could probably use a rebuild, so today is the day. I have some pics below of the disassembly. It is a much nicer chuck than I have owned, as it came apart a totally different way than the "semi-steel" chucks I am used to! Hah hah
I DIGRESS-
It has a factory grease fitting on top.
(EDIT- I found out after writing this that it MAY be an oil Zerk fitting)
Can I use the same PTFE/Teflon grease I would use in my backgear/cone pulley? I have heard of "chuck grease", but don't know if it is different at all.
I want to reassemble it packed already, and also want have the right stuff on hand to keep it up. It sure would help if I could just keep one grease gun at the lathe for everything.
Thanks folks!
Bernie
Grease fitting
When I finally found the seam, I really had to rap hard with this little brass hammer through the rag to split it:
I never had a chuck that split in the middle like this! Very tight tolerance... I could barely see the seam:
I should have shown the dirty scroll and parts first!! But I got too carried away. Suffice it to say, despite this being a well cared for and visually "clean" and high quality chuck, it was dirty, gunky, with hardened grease inside. Only some small brass swarf on the scroll:
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