1. Check whether the feed teeth match the tugboat, and check whether the tugboat presser foot and pressure are too tight or too loose. There should be a gap between the presser foot and the cylinder.

2. Pull the baffle plate closer to the presser foot, so that the stitch of the car will be neat and appropriate.

3. Properly thread the edge banding: thread the edge banding into the drawing tube, with a seam in the middle, which can be passed through by a needle, and the tail cloth of the edge banding should be flat. After pulling out, fold both sides of the packaging tape inward and pull it out of the front slot at 90 degrees.

4. You don't need to cut the edging strip in advance, and you don't need to tighten the edging strip when turning. Push the selvage in the direction of pulling the roller with your left hand to ensure that the selvage is close to the center of the hemming strip to prevent it from falling off.