I agree with the two responders. In addition, I would like to see your forum name spelled out on a plain white printing paper and included in every picture.
I have a 1236 Taiwanese lathe, to thread 1.5, just flip the lower 40 T. Loosen the 120/127 combo to engage the 120T, adjust lash.
Levers in C-1 positions.
We just got through threading a barrel tenon for a Howa 1500 with this set up.