Has anyone had experience changing the inerts out on a Vicmarc chuck? If so what tools and procedures do you use?
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Changing out Vicmarc Chuck Insert
- Thread starter Wyatt Holm
- Start date
Like my Novas I put my Vicmarcs in a big vice I have with soft jaws and then I use water pump pliers to grab and unscrew the insert.
I do the same for Novas- clamp the chuck in a vise with wood jaws. I use the Nova wrench to unscrew the insert. Don't forget to remove any locking set screws first! Sometimes they are not obvious - deep inside, accessible through a hole on the outer circumference of a Nova chuck. Maybe other brands are similar.
JKJ
On the more recent Chuck’s they have a locking Allen screw on the back of the insert (headstock side) that should be removed. They also have a hole for the Tommy bar that comes with the Chuck’s. If you clamp the Chuck’s jaws on a board in a vise (or securely fixed to something) to hold the Chuck in place and put the Tommy bar (or a large Allen wrench) in the insert hole, then give the Tommy bar a sharp tap it should come free.
Attachments
Thanks I'll give it try.
If you can find the right size hook pin spanner it will make the job easier and you can use it for removing the chuck from the spindle.
Should be pretty easy to make with a bit of metal working. I've made several custom wrenches from mild steel with just a sawzall or hacksaw, dremel, and files. And a vise.
Is Oneway the only manufacturer that includes threaded holes for ejection screws?
The Vicmarc and Nova chucks are threaded adapters so they need to be unscrewed. Oneway is a taper adapter that is pulled straight in with pressure from the bolts and then pressed out using the ejection screw holes.
john lucas
AAW Forum Expert
This is the tool you need to more easily change the inserts. I raise it up slightly and smack it with my carving mallet. That loosens it. I use the same tool to snug it up when screwing it back in.