Hi,
I am new to wood turning & just bought one of these lathes. I also bought the SIP 4" Chuck (06853). I know supplied spanner fits the face plate supplied with the lathe, but how do you 'lock' the headstock to allow you to remove the face plate/chuck? My chuck is now 'stuck' on the spindle & I cannot seem to remove it 
I also have 2 small metal bars which fit into the headstock spindle.
Any advice much appreciated. Thx.
Mark