Whether the embroidery head (needle bar frame) is loose, the top dead center The needle bar is very tight when pressed down, and the goods cannot automatically spring back Presser foot stuck Needle bar deformation (can be compared with the position of the thread) The top and bottom dead centers are in contact with the needle bar guide (adjust up and down no-point screws) Needle bar frame is adjusted too tightly Deformation of the needle bar frame Single embroidery machine head drop presser foot Confirm whether the electromagnet is active when shutting down. If not, a>the solenoid plug is loose; b>the solenoid wire is broken; c>the surface inspection board is damaged; d>the solenoid is damaged The electromagnet is loose or in the wrong direction The vinyl is damaged (it won’t bounce back), or the place where the vinyl touches the electromagnet is severely worn Single needle bar drop presser foot cheap embroidery machines price Upper spring break View vinyl Top dead center Presser foot of the whole machine Bounce fuse burned The power board is damaged Motherboard is damaged Decoder board Handpiece signal line is broken Single needle bar does not lower the needle (or bad beat) Dead center Replace the top dead center block View vinyl No needle under a single head Whether the mechanical lock is locked Whether the electromagnet cannot be sucked in or out when the machine is turned on (you can change the color to the 9th pin, open the electromagnet cover and turn it on to check) Is the position of the electromagnet correct? Whether the vinyl is damaged (change the color to the 9th pin to check) Check the top dead center of the needle bar Check the position of the silver arm and the iron cam (check with the wire position) Poor movement of a single machine head (sometimes it takes a few jumps to lower the needle normally)
