Kurt vise problem

My kurts have a hemi-spherical ball with a dimple in one side. I've noticed that putting the vise back together can be a little problematic ito of getting s*it to seat -- you sorta have to have the vise nose down (handle up), and finagle a bit, not easy with my 70 lb-ers, proly easier with your 4". I think I used a thick grease to kind of get the ball to stick in place while finagling.

The system is geometrically simple (and perty clever), but a little ergonomically taxing. If you take it apart carefully again, you may be able to see how the ball/screw might be cocked/cammed/jammed.

My newer Kurts have pockets cut into the bottom of the moving jaw for little o-rings, this holds the jaw up alittle and you then get a nice downward pull when you tighen it up. I normally don't use the o-rings, but that's what they are there for. You could add the pockets if you want, just mill out to a depth of 70-80% of the oring you are going to use.

--Those 4" Kurts are rare and expensive; treat it with care. I'd give Kurt a call first and see if they can retrofit it for you.

Yes...I about fell over when I saw the catalog price! A phone call is in order.

The one I have is pretty old, no O-rings or pockets. Interesting idea, if nothing else is wrong.

I was careful with it, but maybe...sometimes things go wrong. Will take another look.

They are CNC vices and thus the 'added value'.

I wanted one for some years and I suppose someday they will come on the market as salvage units.

Mart> >> --Those 4" Kurts are rare and expensive; treat it with care. I'd

Have you seen this doc?

Mike