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General| Type | Mechanical |
|---|---|
| Stitch Types | Straight, Zigzag |
| Bobbin Type | Class 15 |
| Speed | 750 stitches per minute |
| Stitch Length | Adjustable |
| Buttonhole | 4-step |
| Presser Feet | buttonhole |
| Weight | 5.5 kg |
| Dimensions | 39 x 17 x 30 cm |
Identifies specific points requiring oiling on the machine and frequency of lubrication.
Guidelines for choosing the correct needle size and how to properly insert and secure it in the needle bar.
Step-by-step guide for threading the upper thread through the machine's various points.
Detailed instructions on how to wind thread onto a bobbin, including placement and starting the process.
Step-by-step guide for threading the bobbin case with thread for insertion into the shuttle.
Explains achieving balanced thread tension for a perfect stitch and identifies tension issues.
How to adjust the bobbin thread tension for average sewing and general guidelines.
How to adjust the needle thread tension, emphasizing it should only be done with the presser foot down.
Explanation, checking, and re-setting procedures for the shuttle timing mechanism.
Procedure for timing the feed assembly for optimal movement and efficiency.
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