Having just read this thread and the associated owners manual it amazes me that the manufacturer has not employed a competent translator to write the manual.
A few examples of odd translations:
Page 1 states you must wear 'gaberdine' when performing maintenance.
Page 15 'rinse the headstock with the coal oil'.
Figures 7 & 8 circuit diagrams are referred to as 'electrical principium'.

Maybe I'm just old and intolerant but it is the 21st century and so many Asian manufactures still supply sub standard manuals. unfortunately in some cases this reflects the quality of their machines.

Regards, Grumpy