Help with Sieg CNC Mill Spindle / Collet

[DanBeadle]

I need basic help with setting up the collet adapter in the spindle.

I see that the collet it threaded. I threaded it into the spindle. It goes in about 1/2" of threads. When I get to the top, it free-wheels. I have read about drawbar systems, but this unit clearly doesn't have a drawbar. T here is a knob at the top that is part of the spindle system. Turning it doesn't seem to have an effect.

I have looked at the exploded parts diagram - it seems that I am to do something with the knob at the top, but I haven't found the magic yet.

I am surprised that there is nothing in the kit that explains this basic function. Can you point me in the right direction. Obviously I have never use any mill before.

Thanks.

[DanBeadle]

I found a great pictorial of the setup. Makes sense.

Sieg KX1 Installing & Removing the Cutter - iannewplayground

Now out to the shop to test.