1968 unstable adjustment of thread cutting

Trimming weight adjustment

End dense needle switch selection

Panel function introduction

Upper needle position adjustment

Presser foot lifting and loosening switch

Positioning of presser foot lifting cam

Presser foot and reverse sewing speed

Stitch size limit

Function introduction of 1 / 2 and 1 / 4 switch

Needle sensitivity

Introduction of the function of the pattern

The first step of thread cutting

The second step of thread cutting

Presser foot height limit

Adjustment of loosening force of large wire clamp

Introduction of pattern sewing function

Presser foot height limit

Adjustment of oil quantity of rotary shuttle

Rear step up presser foot switch

Zero point correction of motor