4.1. It is necessary to preheat Horizontal and Vertical Sealing Unit to the needed
temperature for machine working before official operation. Usually it takes
about 30 minutes to make it, you can do this by turning "TEMPERATURE
ADJUSTER" (FIG.B-3,4,5,6) to "ON" position and set the needed
temperature. Temperature adjuster has 2 line of digital number, bottom line is
for set up the temperature you need. When you set up the temperature, The
number of top line will change to the number you set, if 2 lines of number are
the same, the temperature setting is down.