Singer SISCR-40 User's Manual
![Singer SISCR-40 manual cover](/images/634e9a76a69da29ba4b2966a/thumbs/thumb175x175.webp)
To thread the Singer SISCR-40, first raise the presser foot and turn the handwheel to raise the needle. Place the spool of thread on the spool pin and draw the thread through the thread guide. Follow the threading path indicated on your machine, ensuring the thread passes through the tension discs and the take-up lever. Finally, thread the needle from front to back.
If the Singer SISCR-40 is skipping stitches, check if the needle is inserted correctly and is not bent or dull. Use the correct needle size and type for your fabric. Re-thread the machine to ensure the thread is correctly seated in the tension discs. Check the bobbin to ensure it is wound evenly and inserted properly.
To maintain your Singer SISCR-40, regularly remove lint and dust from the bobbin area and feed dogs using a small brush. Oil the machine as indicated in the manual, focusing on the moving parts. Always unplug the machine before cleaning, and use a soft cloth to wipe the exterior.
If the fabric is not feeding properly, ensure the presser foot is lowered. Check that the feed dogs are engaged and not lowered for free-motion sewing. Clean the feed dogs of any lint or debris. Adjust the presser foot pressure if needed for different fabric types.
For heavy fabrics, such as denim or canvas, use a needle size of 16/100 or 18/110. This ensures the needle can penetrate the fabric without bending or breaking. Always use needles designed for the type of fabric you are sewing.
To adjust the tension on the Singer SISCR-40, locate the tension dial on the front of the machine. For tighter tension, increase the number on the dial. For looser tension, decrease the number. Test on a scrap piece of fabric to find the optimal setting.
Unusual noises may indicate a need for cleaning or maintenance. Check for lint or thread caught in the bobbin area. Ensure the machine is properly oiled. Inspect the needle to ensure it is not bent and is installed correctly.
To sew a buttonhole, use the buttonhole foot and select the buttonhole stitch. Mark the position on the fabric, place the fabric under the foot, and lower the presser foot lever. Follow the machine's instructions for creating the buttonhole automatically.
To wind the bobbin, place an empty bobbin on the bobbin winder spindle and push it to the right. Thread the machine as indicated and wrap the thread around the bobbin a few times. Hold the thread end, start the machine, and allow it to wind evenly.
To prevent needle breakage, use the correct needle type and size for your fabric. Avoid pulling the fabric while sewing, and let the feed dogs move the fabric. Ensure the needle is properly installed and replace it regularly to avoid using a dull needle.