The old sewing machine can't hook the thread and can only be turned to this position. God, can you help me see what is going on?

When sewing machines make knitted fabrics, it is easy to jump wires.

The needle of 1 is too big. Replace it with a small needle of 1 1

Needle plate hole is too large or uneven, replace it.

3 the presser foot can't hold the cloth, and the gap between the presser foot and the needle is too large. The gap between the needle and presser foot at the lowest point is adjusted to 0.5 ~1mm.

The gap between the shuttle and the needle does not match. Turn the handwheel (counterclockwise) to make the needle rotate to the lowest point, and the pendulum tip and the needle center line are between 2.5 and 4 mm. When the needle rises by 2.5 to 3.5 in the same rotation direction, the pendulum tip is just on the needle center line, and the left and right clearance between the pendulum tip and the needle is 0.05 to 0 mm, which is normal. If it is greater than 0.05 mm, the pointer stops bending and is corrected with pliers.

Usually for these reasons.