Issue link: https://docs.hic.us/i/445637
To pass thread, to set fabric 40 Chapter 4 QS07 Pass the thread to the thread take-up spring and the upper thread lock surely. Otherwise it would cause the thread breakage or affect the thread tension badly. Return the adjusting lever to the original position after passing the thread. Otherwise it would cause the thread breakage or affect the thread tension badly. Upper thread lock Thread take-up 1 2 3 4 How to use adjusting lever (1) To raise the lever (2) To pass the thread (3) Return the lever after threading. (The screw should face to the front. Lever Screw Lever spring ! CAUTION