Pull the bottom thread and the upper thread to the top of the pressing bowl at the same time, so as to test to see if the dividing line is good or not, and whether there is any problem with the thread trimming.
Pull the bottom line and the top line to the top of the pressure bowl at the same time, so as to test whether the parting is good or not, and whether there is any problem with the thread cutting.
Pull the bottom line and the dough line to the top of the pressing bowl at the same time, so as to test whether the parting line is good or not, and whether there is any problem on the trimming line.