Brother International Innov-is BQ950 Operation Manual - Page 126
Incorrect thread tension
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Troubleshooting Pass the thread under the thread guide plate, and then f pull it up. Incorrect thread tension 1 Thread guide plate While using your right hand to lightly hold the thread g passed under the thread guide plate, pass the thread through the thread path in the order shown below. 1 ■ Symptoms • Symptom 1: The bobbin thread is visible from the right side of the fabric. (Refer to illustration below) • Symptom 2: The upper thread appears as a straight line on the right side of the fabric. • Symptom 3: The upper thread is visible from the wrong side of the fabric. (Refer to illustration below) • Symptom 4: The bobbin thread appears as a straight line on the wrong side of the fabric. • Symptom 5: The stitching on the wrong side of the fabric is loose or has slack. Symptom 1 Symptom 3 1 Shutter Lower the presser foot. h Press . i Slide the thread behind the needle bar thread guide. j The thread can easily be passed behind the needle bar thread guide by holding the thread in your left hand, then feeding the thread with your right hand, as shown. 1 1 Needle bar thread guide Next, use the needle threader to thread the needle. k Continue with the procedure in "Threading the needle" in the "Basic operations" section. 1 Wrong side of fabric 2 Bobbin thread visible from right side of fabric 3 Upper thread 4 Right side of fabric 5 Bobbin thread 6 Upper thread visible from wrong side of fabric ■ Cause/remedy/check details Cause 1 The machine is not correctly threaded. The bobbin threading is incorrect. Return the upper thread tension to the standard setting, and then refer to "Upper thread tightened up" on page A-4 to correct the threading. The upper threading is incorrect. Return the upper thread tension to the standard setting, and then refer to "Tangled thread on wrong side of fabric" on page A-5 to correct the upper threading. A-6