Singer S-9000AAB Instruction Book
![Singer S-9000AAB manual cover](/images/dc7bd7aa1e7eea8bc04ee249/thumbs/thumb175x175.webp)
To thread the Singer S-9000AAB, first raise the presser foot and turn the handwheel towards you to raise the needle to its highest position. Follow the threading guide printed on the machine, making sure the thread is properly seated in the tension discs. Finally, thread the needle from front to back.
If the machine is skipping stitches, check that you are using the correct needle and thread for your fabric. Ensure the needle is correctly inserted and not bent or damaged. Re-thread the machine, checking the tension settings, and test on a scrap of fabric.
To clean and maintain your Singer S-9000AAB, regularly remove lint and dust from the bobbin area and feed dogs using a small brush. Oil the machine as per the user manual instructions, typically around the hook race. Always unplug the machine before cleaning.
Ensure the feed dogs are raised. Check the presser foot pressure and adjust if necessary. Verify that the fabric is not too thick for the presser foot in use. Cleaning the feed dogs may also help if they are clogged with lint.
Unusual noises may be due to a lack of oil or incorrect threading. Ensure the machine is threaded correctly and the bobbin is inserted properly. Clean the machine of any lint and oil as instructed in the manual. If noise persists, consult a professional technician.
To adjust the tension, use the tension control dial. For general sewing, the tension setting should be in the middle range. Test on a scrap fabric, adjusting incrementally until balanced stitches are achieved (no loops on the top or bottom).
For heavy fabrics, use a size 16/100 or 18/110 needle. Ensure it is suitable for the type of fabric, like denim or canvas, and pair it with a strong thread, such as polyester or heavy-duty thread, for best results.
Ensure the bobbin is correctly placed on the winder and the thread is threaded through the bobbin winding tension disc. Verify that the handwheel is disengaged and the machine is in bobbin winding mode. Adjust the bobbin winder stopper if the bobbin overfills.
Stop the machine immediately and remove any broken needle parts. Check that you are using the right needle size and type for your fabric. Reinsert a new needle, ensuring it is securely fastened and correctly positioned.
Use a finer needle, such as size 9/70 or 11/80, and a lightweight thread. Adjust the tension settings to prevent puckering. Use a straight stitch plate if available and ensure the feed dogs are properly adjusted for the fabric thickness.