Brother International CP60X Operation Manual - Page 26

n Cause Incorrect upper threading If the upper thread is incorrectly threaded, the upper thread passed through the fabric cannot be firmly pulled up and the upper thread becomes tangled in the bobbin case, causing a rattling noise. n Remedy/check details Remove the tangled thread, and then correct the upper threading. 1 Remove the tangled thread. If it cannot be removed, cut the thread with scissors. * For details, refer to "Cleaning the race" (page 24). 2 Remove the upper thread from the machine. 3 Correct the upper threading by following the instructions in "Upper threading" (page 9). * If the bobbin was removed from the bobbin case, refer to "Winding/Installing the bobbin" (page 7) to correctly install the bobbin. Incorrect thread tension n Symptoms 1. T he bobbin thread is visible from the right side of the fabric. (Refer to the illustration below.) 2. T he upper thread appears as a straight line on the right side of the fabric. 3. The upper thread is visible from the wrong side of the fabric. (Refer to the illustration below.) 4. The bobbin thread appears as a straight line on the wrong side of the fabric. 5. T he stitching on the wrong side of the fabric is loose or has slack.  Symptom 1  S ymptom 3 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 n Cause/remedy/check details  Cause 1 The machine is not correctly threaded. The bobbin threading is incorrect. Return the thread tension dial to "4", and then refer to "Winding/Installing the bobbin" (page 7) to correct the threading. The upper threading is incorrect. Return the thread tension dial to "4", and then 26 refer to "Upper threading" (page 9) to correct the upper threading.  C ause 2 A needle and thread appropriate for the fabric are not being used. The machine needle that should be used depends on the type of fabric sewn and the thread thickness. If a needle and thread appropriate for the fabric are not being used, the thread tension will not be adjusted correctly, causing wrinkles in the fabric or skipped stitches. * Refer to "Fabric/Thread/Needle Combination" (page 12) to check that a needle and thread appropriate for the fabric are being used.  Cause 3 An appropriate upper tension is not selected. Select an appropriate thread tension. Refer to "Thread tension" (page 17). The appropriate thread tension differs depending on the type of fabric and thread being used. * Adjust the thread tension while test sewing on a piece of scrap fabric that is the same as that used in your project. Note • If the upper threading and bobbin threading are incorrect, the thread tension cannot be adjusted correctly. Check the upper threading and bobbin threading first, and then adjust the thread tension. 21 098 098 • If the bobbin thread is visible from the right side of the fabric 54 3 76 Turn the thread tension dial counterclockwise to loosen the upper thread tension. • If the upper thread is visible from the wrong side of the fabric 54 3 76 Turn the thread tension dial clockwise to tighten the upper thread tension. 21 Fabric is caught in the machine and cannot be removed If the fabric is caught in the machine and cannot be removed, the thread may have become tangled under the needle plate. Follow the procedure described below to remove the fabric from the machine. If the operation cannot be completed according to the procedure, instead of attempting to remove it forcefully, contact your nearest Brother authorized service center.