Brother International Innov-is 4750D Instruction Manual for Bobbin work - Page 6

■ Fabric Be sure to sew trial stitches on a piece of scrap fabric, which includes the same threads and fabric as what is being used in your project. Note • The sewing results may be affected by the type of fabric used. Before sewing your project, be sure to sew trial stitches on a piece of scrap fabric that is the same as the fabric used in the project. Upper Threading a Install a needle appropriate for the upper thread and fabric to be used. For details on installing the needle, refer to the machine's Operation Manual. b Attach the presser foot. For the presser foot to be used, refer to see "Required Materials" on page 3. For details on attaching the presser foot, refer to the machine's Operation Manual. c Thread the machine with the upper thread. For details on threading the machine, refer to the machine's Operation Manual. Preparing the Bobbin Thread In order to create bobbin work, the bobbin case must be replaced with the one for bobbin work. Before creating bobbin work, clean the bobbin case and the race. a Raise the needle and presser foot, and then turn off the machine. b Remove the flat bed attachment. c Remove the needle plate cover. For details on removing the needle plate cover, refer to the machine's Operation Manual. d Remove the bobbin case. a Bobbin case e Use the cleaning brush included with the machine or a vacuum cleaner to remove any lint and dust from the race and its surrounding area. a Cleaning brush b Race f Wipe the bobbin case (gray) with a soft lint free cloth to clean it. g Insert the bobbin case (gray) so that the  mark aligns with the ● mark as shown below. a Needle plate cover 4 a  mark b ● mark