Brother International LS-2125i Users Manual - English - Page 31

■ Upper tension is too loose Loops appear on the wrong side 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" (page 16) and rethread. 1 5 2 3 4 a Wrong side b Surface c Upper thread d Lower thread e Loops appear on wrong side of fabric Solution Increase the tension by turning the upper tensioncontrol dial to a higher number. ■ Bobbin tension is too loose Loops may appear on the surface of the fabric when sewing thin fabric with thin thread. 1 a Wrong side b Surface 2 c Upper thread d Lower thread e Loops appear on 3 5 surface of fabric 4 2 Solution Reduce the tension by turning the upper tensioncontrol dial to a lower number. If the problem persists, increase the tension in the bobbin by turning the screw clockwise with a small screwdriver. Be sure not to turn the screw more than one full turn. In addition, be sure to return the screw to its original position before the next time that the machine is used. Note ● The bobbin thread tension has been adjusted at the factory for general use. For most sewing applications, no adjustment is needed. 29