Singer 127, 128 Instruction Manual

To thread the Singer 127/128, start by placing the spool on the spool pin. Pull the thread through the thread guide, then down to the tension discs. Guide it up to the take-up lever, and then down to the needle thread guide before threading the needle.
The Singer 127/128 typically uses 15x1 needles. Ensure the needle size matches the fabric type you are sewing.
Place the bobbin on the bobbin winder spindle. Run the thread from the spool through the thread guide and onto the bobbin. Engage the bobbin winder and run the machine to wind the bobbin evenly.
Skipping stitches can be caused by a dull or bent needle, incorrect threading, or tension issues. Check the needle, rethread the machine, and adjust the tension as needed.
Use the tension dial on the front of the machine to adjust the tension. Turn it clockwise to increase tension and counterclockwise to decrease it. Test on a scrap piece of fabric to find the right setting.
Regular maintenance includes cleaning lint from the feed dogs, oiling moving parts with sewing machine oil, and checking for worn parts. Perform these tasks every few months or after heavy use.
Begin by turning off the machine and removing the fabric. Check for tangled thread in the bobbin area and clear any debris. Re-thread the machine and bobbin before resuming.
Ensure the machine is properly oiled. Check for thread jams or obstructions. If the problem persists, consult a professional technician.
Raise the presser foot lever to lift the foot. Loosen the screw holding the presser foot in place, remove the foot, and attach a new one. Tighten the screw to secure it.
Check if the feed dogs are engaged. Clean any lint or debris obstructing them. Ensure the presser foot is down and the fabric is positioned correctly.