Reinsert the bobbin case into the machine. 步骤7 Sew another straight line on the scrap fabric next to the previous line. 步骤8 Check the front and back thread tension of the scrap fabric for loose stitches. 步骤9 Adjust the upper thread tension. ...
To use the free arm on a sewing machine, first take off the removable box on the machine. Then, slide the sleeve or cuff onto the free arm and position it under the needle. Start sewing. How do you adjust the thread tension? The tension dial is a small numbered wheel near the takeup...
Adjust the thread and bobbin tension If the thread keeps bunching up or if the stitching just lookswrong, chances are something’s too tight. A standard sewing machine uses two threads: one that unwinds from a spool on top of the machine and goes through the needle, and one that comes ...
Guide the thread down the one on your left, and then lead it around the bottom of the thread guide plate (and sometimes thread tension knob) from right to left, then make a U-turn upwards... Sometimes, there's a large tension knob at the bottom between those, and sometimes you won'...
Use a fine emery cloth to sand off burrs or rust from the bobbin thread tension assembly. Replace any damaged parts. As needed, adjust the presser bar screw until the foot is straight. As needed, clean the feed assembly: Raise the presser foot, needle, and needle plate. Then unfasten and...
Reassemble the bobbin and bobbin case. Replace the bobbin case in the sewing machine. Step 10 Thread the needle. Step 11 Pull the bobbin thread up through the needle plate Step 12 Reattach the tool box section. Step 13 Adjust the thread tension, if necessary, to prevent another jam. ...
Solution B:Rethread the bobbin, making sure the thread is properly inserted into the tension areas. A third spot to check is to see if your tension discs are on to the wrong setting on the machine. Solution C:The tension dial on the machine should be set to the middle “automatic” se...
If the zigzag is pulling the two stitches together and creating a pucker between them on top and a tunnel underneath, tighten the thread tension on top and loosen it on the bobbin until the stitching lays flat. Step 10: Creating Elastic Hems In some places on a spandex suit, such as leg...
Adjust the thread tension on the sewing machine. The upper thread will break if the tension is set too high. Lower it for smoother sewing. The lower thread also needs to be lowered if it is constantly breaking during sewing. Step 5 ...
If the bobbin is not threaded properly then the bunching is likely to occur. For this, take out the bobbin case and rethread it. This can also happen if the bobbin thread is too loose. In that case, adjust the bobbin properly to get the right tension. ...