How To Touch Off Sub Spindle and Backside Tooling on a Swiss Lathe

[@kenstaner6083]

Thank you for all the good information

[@bilelbarhoumi-e4b]

Good job

[@brettbernhardt7608]

Could you guys possibly jelp me with a citizen b12? The subspindle chuck button wont open/close and im not sure if its a parameter thing or not.