TROUBLESHOOTING176Incorrect Thread Tension■ Symptoms• Symptom 1: The bobbin thread is visible from theright side of the fabric.• Symptom 2: The upper thread appears as a straightline on the right side of the fabric.• Symptom 3: The upper thread is visible from thewrong side of the fabric.• Symptom 4: The bobbin thread appears as a straightline on the wrong side of the fabric.• Symptom 5: The stitching on the wrong side of thefabric is loose or has slack.1 Wrong side of fabric2 Bobbin thread visible on right side of fabric3 Upper thread4 Right side of fabric5 Bobbin thread6 Upper thread visible from wrong side of fabric■ Cause/Remedy Cause 1The machine is not correctly threaded.The bobbin threading is incorrect.Adjust the upper thread tension and then refer to “UpperThread is Too Tight” on page 175.The upper threading is incorrect.Adjust the upper thread tension and then refer to “TangledThread on Wrong Side of Fabric” on page 175 to correctthe upper threading. Cause 2A needle and thread appropriate for the fabric are notbeing used.The machine needle that should be used depends on thetype of fabric sewn and the thread thickness.If a needle and thread appropriate for the fabric are notbeing used, the thread tension will not be adjustedcorrectly, causing wrinkles in the fabric or skippedstitches.* Refer to “FABRIC/THREAD/NEEDLECOMBINATIONS” on page 49 to check that aneedle and thread appropriate for the fabric arebeing used. Cause 3An appropriate upper tension is not selected.Select an appropriate thread tension. Refer to “Setting theThread Tension” on page 62.The appropriate thread tension differs according to thetype of fabric and thread being used.* Adjust the thread tension while test sewing on apiece of scrap fabric that is the same as that used inyour project.* When the bobbin thread is visible on the right side ofthe fabric.Set the upper thread tension to a lower number. (Loosenthe thread tension.)* When the upper thread is visible on the wrong side ofthe fabric.Set the upper thread tension to a higher number.(Tighten the thread tension.)Fabric is Caught in the Machine and CannotBe RemovedIf the fabric is caught in the machine and cannot beremoved, the thread may have become tangled underthe needle plate. Follow the procedure described belowto remove the fabric from the machine. If the operationcannot be completed according to the procedure,instead of attempting to complete it forcefully, contactyour nearest Baby Lock retailer.■ Removing the Fabric From the Machinea Immediately stop the machine.b Turn off the machine.c Remove the needle.If the needle is lowered into the fabric, turn thehandwheel away from you (clockwise) to raise theneedle out of the fabric, and then remove the needle.* Refer to “CHANGING THE NEEDLE” on page 47.d Remove the presser foot and presser foot holder.If the thread is entangled on the presser foot, remove theentangled thread, and then raise the presser foot lever toremove the presser foot. Otherwise, the presser foot maybe damaged.* Refer to “CHANGING THE PRESSER FOOT” onpage 50.e Lift up the fabric and cut the threads below it.If the fabric can be removed, remove it.f Remove the needle plate cover.* Refer to “Cleaning the Race” on page 172. Symptom 1 Symptom 3a b cdeacdefNote• If the upper threading and bobbin threading areincorrect, the thread tension cannot be adjustedcorrectly. Check the upper threading and bobbinthreading first, and then adjust the thread tension.
