Things You'll Need
Threads in two different colors
It is frustrating when you are trying to use your Singer sewing machine and the seams are just not coming out right. Either the top seam is too loose, or the bottom seam is full of big loops. Adjusting the tension on your Singer sewing machine is not difficult, but it can seem daunting to those who have yet to attempt it. The process doesn't take much time and is relatively simple to do.
Load your sewing machine with one color on top, threaded through the needle. Load the second color thread into the bobbin and thread.
Fold the scrap fabric in half, and sew a straight stitch at least 2 inches long. Look closely at the seam. If you see loops of the bottom color thread on top of the fabric, proceed to Step 3. If you see loops of the top color thread on the bottom of the fabric, proceed to step 4.
Loosen the top tension. Since the top tension is so tight, it is pulling the bottom thread up through the fabric. Loosen the top tension by turning the numbered knob on the front of the sewing machine counterclockwise by one number.
Tighten the top tension. Since the top tension is too loose, the bottom thread is pulling the top thread down through the fabric. Tighten the top tension by turning the numbered knob on the front of the sewing machine clockwise by one number.
Sew a straight stitch 3 inches in length. Check the stitching. It is perfect if the threads meet in the middle, and you can only see the top thread on top and the bottom thread on bottom. If it still needs adjusting, go back to step 2 to repeat the needed steps.
Using two different colored threads makes it easier for you to see which thread is being pulled.
Always use proper precautions when working with electrical machines.