2 Clean, oil, and care for the machine 1st step to any machine maintenance is to turn the power off.Use a brush to remove any lintTo clean the upper area of the machine it helps to remove the presser foot, needle, and stitch plate.Our machines are equipped with a low mass hook that does not require oil. If you do use oil to clean the machine, be sure to run the sewing machine on scrap fabric to avoid getting the oil on your projects.To clean the screen wipe with a damp cloth. Never use alcohol or any type of solvent to clean the sewing computer.
3 Resolving machine problems If you are having any problems always check the following:Machine is threaded correctlyNeedle is inserted correctlyNeedle size is correctSewing computer is cleanHook race is cleanCheck for threads trapped between the tension discs or under the bobbin case
4 If your upper thread breaks… The upper tension may be too tightThe needle may be old or poor qualityThe needle may be blunt or bentYou may have poor quality threadMachine may not be properly threaded
5 If your lower thread breaks: Lower tension may be too tightThe bobbin is jamming in the bobbin case…it may not have been threaded and inserted correctlyThe stitch plate may be damagedThe needle is blunt or bentThe thread might be caught in the bobbin cover door
6 Skipped stitches… Wrong needle Needle is blunt, bent, or incorrectly inserted.The needle is not the right needle for the fabric.Knits: Ball PointHeavy fabrics like denim: Sharp needleWoven or natural fibers: Universal
7 Needle breaks Needle clamp screw may have been loose Fabric taken out in front instead of behind the presser footFabric was pushed or pulled while sewingPoor quality thread
8 Other problems:If the needle comes unthreaded at the beginning of a row of stitching the take-up lever may not have been at the highest pointIf the thread knots up on the underside of the fabric when beginning to stitch try holding the threads under and back when you startIf the stitches are not balanced check the bottom and top tensionIf the fabric doesn’t move be sure the presser foot is down and the feed dogs are upIf the machine won’t work, be sure it is plugged in, the foot pedal is attached, and the bobbin winder is in the “off” position.If your stitching puckers make sure the needle is not bent or blunt. Check the thread tension
9 Thread Standard thread is all purpose/cotton wrapped polyester Specialty threads: quilting, heavy duty, embroidery, metallic, etc.Serger thread is lighter weight than standard sewing machine threadsQuality thread prevents stitching problems
11 SergersDemonstrate how to replace a needle and how to turn the hand wheel with sewing,Identify safety precautions and procedures when working with a sergerClean, oil, and care for serger according to machine manualAlways remember to leave a “tail” when using a serger to prevent the needles from coming unthreaded.