Jump needle

1, machine needle and hook fit is not good, the needle is too high, clearance is too large.Adjust needle height and height.

2. Damaged shuttle.In the hook.

3. Spring under the needle rod is broken.Replace the spring.

4. The embroidery is too loose.Taut embroidery fabric.

5, pressure foot too high or deformation.Adjust or replace pressure foot.(when the needle stops, the gap between the presser foot and the needle plate shall be 0.5mm to 1.5mm) depending on the thickness of the fabric.