Issue link: https://docs.hic.us/i/445631
42 Thread passing, fabric setting Chapter 4 RR06 Pass the thread to the thread take-up spring and the upper thread lock surely. Otherwise, thread breakage would be caused or the thread tension would be affected badly. Return the adjusting lever to the original position after passing the thread. Otherwise, thread breakage would be caused or the thread tension would be affected badly. Upper thread lock Thread take-up 1 2 3 4 How to use adjusting lever (1) To raise the lever (2) To thread (3) Return the lever after threading. (The screw should face to the front.) Lever Screw Lever spring ! CAUTION