Brother International BM3700 Users Manual - English and Spanish - Page 17

Put the bobbin in so the thread comes out 4 in the direction shown by the arrow. Replace the bobbin cover. Put the 6 projection into the race retainer groove and push closed. 1 12 CAUTION ● Make sure you set the bobbin so the thread unrolls in the right direction. If the thread unrolls in the wrong direction, it may cause the thread tension to be incorrect or break the needle. Hold the end of the thread, push the 5 bobbin down with your finger, and then pass the thread through the slit, as shown. • If the thread is not correctly inserted through the tension-adjusting spring of the bobbin case, it may cause incorrect thread tension. 1 Groove 2 Projection • Make sure that the end of the thread comes out from the cover toward the rear of the machine (as shown in the illustration). • Draw up the lower thread before starting sewing. Refer to "Drawing up the lower thread" on page 21 after threading the upper thread. Lower threading (for models equipped with a quick-set bobbin) Install the bobbin wound with thread. This feature is only available on certain models. Follow steps 1 to 4 from "Lower 1 threading" on page 15. While lightly holding down the bobbin 2 with your right hand as shown, guide the thread through the slit (1 and 2). Then, pull the thread toward you to cut it with the cutter (3). • At this time, check that the bobbin easily rotates counterclockwise. 1 1 Tension-adjusting spring 2 1 2 3 1 1 Slit 2 Cutter (Cut the thread with the cutter.) 16