Why is the bobbin thread breaking on my Janome 4120QDC?
The bobbin thread can break because: * The bobbin thread is not threaded properly in the bobbin holder. * Lint has collected in the bobbin holder. * The bobbin is damaged and doesn’t turn smoothly; if so, replace the bobbin. * The thread is wound loosely on a bobbin.
Why is my Janome 4120QDC not working?
Your machine may not be working because: * The machine is not plugged in. * Thread has been caught in the hook race. * The bobbin winder spindle is not returned to the left after bobbin winding.
Why is my Janome 4120QDC running noisy and not smoothly?
Your Janome sewing machine may run noisily and not smoothly if: * Thread has been caught in the hook race. * Lint has built up in the hook race or bobbin holder.
What causes improper buttonhole sewing on a Janome 4120QDC Sewing Machine?
Improper buttonhole sewing can be caused by: * The stitch density not being suitable for the fabric being sewn. * Suitable interface material has not been used for the stretch or synthetic fabric; if so, use an interfacing.
Why does the needle thread keep breaking on my Janome 4120QDC?
The needle thread may break due to several reasons: * The needle thread is not threaded properly. * The needle thread tension is too tight. * The needle is bent or blunt. * The needle is incorrectly inserted. * The needle thread and the bobbin thread are not set under the presser foot when starting to sew. * The threads were not drawn to the rear after sewing. * The thread is either too heavy or too fine for the needle.
Why are stitches forming loops below the works on my Janome 4120QDC Sewing Machine?
Stitches may form loops below the works if: * The needle thread tension is too loose. * The needle is either too heavy or too fine for the thread.
General| Stitch Patterns | 120 |
|---|---|
| Sewing Speed | 820 stitches per minute |
| LCD Screen | Yes |
| Drop Feed | Yes |
| Start/Stop Button | Yes |
| Speed Control Slider | Yes |
| Needle Up/Down Button | Yes |
| Stitch Length Control | Yes |
| Stitch Width Control | Yes |
| Type | Computerized |
| Max Stitch Width | 7mm |
| Max Stitch Length | 5mm |
| Free Arm | Yes |
| Buttonholes | 7 |
| Bobbin System | Top-loading full rotary hook bobbin |
| Presser Feet | 7 |
Identifies all components of the sewing machine with numbered labels.
Lists and illustrates all included accessories provided with the sewing machine.
Details extension table use and stitch chart reference.
Step-by-step guide on connecting the power cord and foot control to the machine.
Explains the function of key buttons like Start/Stop, Reverse, and Auto-lock.
Instructions for winding and correctly inserting the bobbin into the machine.
Detailed steps for threading the upper thread and using the needle threader.
Explains how to select different stitch patterns using the touch panel and modes.
Basic instructions for sewing straight stitches, turning corners, and handling thick fabric.
Comprehensive guide on attaching the zipper foot and sewing zippers.
Overview of different buttonhole styles and their uses.
How to create a shelled edge using a lightweight fabric and specific tension.
Guides for Patchwork Piecing and using the Stippling Stitch for quilting.
Example of programming a stitch for automatic locking.
How to program text using alphabets, numbers, and symbols in different modes.
How to alter stitch width and length uniformly or individually.
Correcting compressed or drawn-out stretch stitch patterns using the feed balancing dial.
Adjusting the balance of buttonhole stitches based on row density.
Instructions for cleaning internal parts like the hook race and feed dog.
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