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General| Model | 401 |
|---|---|
| Needle Position | Adjustable |
| Bobbin Type | Class 66 |
| Motor | Built-in |
| Material | Metal |
| Operation | Electric |
| Stitch Type | Straight, zigzag, decorative |
| Feed System | Drop feed |
| Stitch Length | Adjustable |
| Stitch Width | Adjustable |
| Buttonhole | 4-step |
| Presser Foot | Snap-on |
| Built-in Needle Threader | No |
| Speed | Variable |
| Voltage | 110-120V |
Details the process of winding thread onto the bobbin using the machine's winder.
Instructs on inserting the needle into the clamp correctly, noting flat side and groove orientation.
Explains how to start and control the machine using an electric controller.
Details the procedure for operating the machine using a treadle.
Provides instructions for threading the upper thread through the machine for single needle sewing.
Illustrates threading the machine to wind the bobbin, showing thread path and tension discs.
Details the process of placing the bobbin in the case and threading the thread through the tension spring.
Explains how to adjust stitch length using the regulator for different fabric types and stitch densities.
Details how to use the outer and inner knobs of the stitch selector to choose patterns.
Guides on bringing up the bobbin thread and positioning threads for sewing.
Details setting stitch length, positioning fabric, and performing backstitching for seams.
Details how to correct needle thread tension that is too tight or too loose.
Provides instructions for correcting bobbin thread tension that is too tight or too loose.
Explains how to shorten stitch length for satin stitches using the stitch indicator.
Advises on setting needle thread tension for satin stitching, emphasizing test samples.
Details the threading process for using two needles.
Specifies settings for straight stitching with two needles.
Guides on setting up for buttonholes and the importance of making a sample.
Provides detailed steps for stitching side stitching, bar tacks, and completing buttonholes.
Details two methods for applique and preparation steps like positioning and basting.
Explains how to sew buttons and create thread shanks for them.
Details the process of blind stitching hems for an invisible finish.
Guides on attaching the zipper foot and stitching a skirt zipper into place.
Explains how to perform blind stitching for a nearly invisible zipper finish.
Guides on using the zigzag stitch for free motion embroidery and satin stitching.
Explains the importance and methods for cleaning the sewing machine to maintain performance.
Provides step-by-step instructions for removing and replacing the bobbin case for cleaning.
Instructs on using SINGER Oil and lubricant at specific points to maintain the machine.
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