Brother International SB3150 Operation Manual - Page 129

CAUTION • Do not remove the bobbin winder seat even if the thread become tangled under the bobbin winder seat. It may result in injuries. • Do not remove the screw on the bobbin winder guide post, otherwise the machine may be damaged; you cannot wind off the thread by removing the screw. 1 Troubleshooting Hold the thread end with your left hand, and wind off d the thread clockwise with your right hand as shown below. 1 Screw of the bobbin winder guide post If the thread become tangled under the bobbin winder a seat, press the "Start/Stop" button once to stop the bobbin winding. When the foot controller is plugged in, remove your foot from the foot controller. Cut the thread with scissors beside the bobbin-winding b thread guide. 1 Wind the bobbin again. e Note • Make sure that the thread passes under the pretension disk of the bobbin-winding thread guide correctly. A MAINTENANCE AND TROUBLESHOOTING 1 Bobbin-winding thread guide Slide the bobbin winder shaft to the left, and then c remove the bobbin from the shaft and cut the thread leading to the bobbin in order to be able to completely remove the bobbin from shaft. Appendix A-11