Hi All

Q1.  In the top most table (revs/mm)
 Under the column titled "position"
 Third column from the left, there are two symbols (one demonstrating horizontal, one demonstrating vertical)
 What is their meaning? 


Q2.  In the third table (THREADS IMPERIAL PITCHES 1/inch)
 Under the column titled "position"
 Second column from the left, there is the letter Z (directly underneath are MII and MI)
 Any clue as to what the letter Z means?
 (I did find in the chinese manual that 1 of the change gears was referred to as "Z=22T" as in a 22 teeth gear)

Q3.  In the third table (THREADS IMPERIAL PITCHES 1/inch)
 Under the column titled "position"
 First column from the left, (you may need to zoom in) 
 
 48T
 Z  ( is this referring to the Z gear ie: 22Teeth?)
 
Q4.  In the third table (THREADS IMPERIAL PITCHES 1/inch)
 Under the column titled "position"
 Second column from the left,

 If I wanted to produce a 24tpi thread, should I be selecting the levers A and 3 with 48T on the top change gear and 22T gear on the bottom?
   
  
Leadscrew = metric 3mm pitch

Lathe: Shenzhen CQ6230B

FWIW the chinese manual that comes with the lathe is poor reading, sure that are not designed to teach but they must convey a clear message/instuction when referencing any information therein.