Brother International PR1050X Operation Manual - Page 288

Attach the needle plate in the opposite way f that it was removed in step b, and then close the hook cover. Slide the paper under the tension-adjusting b spring to remove any dust. Use a corner of the paper to remove any dust from around the hole. 1 Needle plate Cleaning the bobbin case Thread wax and dust easily collect around the hole in the tension-adjusting spring on the bobbin case, resulting in an incorrect thread tension. Therefore, it should be cleaned each time when the bobbin is changed. Use a piece of paper with the thickness of a business card. Open the hook cover, remove the bobbin a case, and then remove the bobbin. (Refer to page 36.) 1 Tension-adjusting spring 2 Hole 3 Paper Note • Do not bend the tension-adjusting spring. In addition, do not use anything other than thick paper or paper of the specified thickness to clean the bobbin case. Use the included cleaning brush to remove c any lint and dust from inside the bobbin case. After cleaning is finished, insert the bobbin d into the bobbin case and the bobbin case into the hook, and then close the hook cover. (Refer to page 36, 37.) 286