Brother International PR1050X Operation Manual - Page 127

After making the adjustments, try d embroidering with all needle bars to check the thread tension. Memo • In the built-in embroidery patterns, one pattern is used for checking the thread tension. By sewing this pattern, the thread tension can easily be checked. For details, refer to page 247. OTHER BASIC PROCEDURES → If the thread tension is not still correctly adjusted, turn the upper thread guide pretension knob. 3 Adjusting the tension of the upper thread 1 Upper thread guide pretension knob 2 Tighter 3 Looser ■ Correct Thread Tension The pattern can be seen from the wrong side of the fabric. If the thread tension is not set correctly, the pattern will not finish well. The fabric may pucker or the thread may break. When embroidering, the thread tension should be set so that the upper thread can slightly be seen on the wrong side of the fabric. Turn the thread tension knobs. a 1 Right side 2 Wrong side Follow the operations described below to adjust thread tension according to the situation. Note • If the thread tension setting is made extremely weak, the machine may stop during sewing. This is not the sign of a malfunction. Increase the thread tension slightly, and begin sewing again. • If necessary, refer to page 287 for reassembling the tension unit. 1 Thread tension knobs 2 Tighter 3 Looser 4 Mark 125