Brother International BM2800 Users Manual - English and Spanish - Page 28
Thread tension
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SEWING BASICS Thread tension The tension of the thread will affect the quality of your stitches. You may need to adjust it when you change fabric or thread. Memo ● We recommend that you do a test sample on scrap of a fabric before you start to sew. ■ Correct tension Correct tension is important as too much or too little tension will weaken your seams or cause puckers on your fabric. 2 1 3 4 1 Surface of fabric 2 Back of fabric 3 Upper thread 4 Lower thread ■ Upper tension is too tight Loops will appear on the surface of the fabric. ■ Upper tension is too loose Loops appear on the back of the fabric. Note ● If the upper thread was incorrectly threaded, the upper thread may be too loose. In this case, refer to "Upper threading" on page 17 and rethread the upper thread. 25 1 3 4 1 Surface of fabric 2 Back of fabric 3 Upper thread 4 Lower thread 5 Loops appear on back of fabric Solution Increase the tension by turning the upper tension control dial to a higher number. Note ● If the bobbin thread was incorrectly threaded, the upper thread may be too tight. In this case, refer to "Lower threading" on page 15 and rethread the bobbin thread. 2 1 3 5 4 1 Surface of fabric 2 Back of fabric 3 Upper thread 4 Lower thread 5 Loops appear on surface of fabric Solution Reduce the tension by turning the upper tension control dial to a lower number. 27