Sewing-machine does not start causes and solutions

Vintage air sewing, working and suddenly head stopped spinning, sewing clothing cannot be removed, through practice and flipping the flywheel does not enable the treatment of its motion in this case and see if the problem follows the fabric together with the needle into needle?

Take off Panel, use a knife to cut the sewing thread of 1.1 points. Take the hook out, problem solved. Old machines with the quality performance of the machine easily into such a problem, mostly caused by improper operation.