: Most 161 models feature a lever or button to sew in reverse for securing the ends of a seam.
: Use the upper tension dial to ensure stitches are balanced on both sides of the fabric. manual sigma modelo 161 pdf
is essential for understanding the machine’s intricate mechanical nature. Unlike modern electronic machines, the 161 relies on a system of gears, cams, and levers. Key sections of the manual typically cover: Threading and Tension : Most 161 models feature a lever or