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General| Type | Mechanical sewing machine |
|---|---|
| Brand | Pfaff |
| Model | hobbymatic 904-1 |
| Sewing Speed | 800 stitches per minute |
| Needle System | 130/705 H |
| Needle Positions | Variable |
| Max Stitch Length | 4 mm |
| Max Stitch Width | 5 mm |
| Bobbin Type | Class 15 |
| Free Arm | Yes |
| Presser Feet | Standard, Zipper, Buttonhole |
| Stitch Options | Straight, zigzag, decorative |
General safety precautions for household sewing machines according to IEC 335-2-28.
Details precautions to reduce the risk of electric shock.
Outlines warnings to prevent burns, fire, electric shock, or injury.
Details how to connect the electrical power and operate the foot control for speed.
Explains using the master switch and how pedal pressure controls speed.
Detailed steps for threading the upper thread through the machine.
How to use the foot control to adjust sewing speed.
Guide to checking and adjusting the upper thread tension for optimal results.
Detailed instructions for sewing buttonholes, including test sewing.
Detailed steps for sewing buttonholes in French.
Detailed steps for sewing buttonholes in Dutch.
How to clean the feed dog, hook raceway, and other parts.
Instructions on where and how to apply oil to the machine.
Addresses issues where the machine skips stitches and provides remedies.
Explains causes and solutions for the needle thread breaking.
Discusses reasons for needle breakage and how to fix them.
Covers issues related to non-uniform seams and their solutions.
Addresses problems with irregular or no feed dog function.
Troubleshooting skipped stitches in French.
Addressing needle thread breakage issues in French.
Troubleshooting needle breakage in French.
Addressing issues with poor seam quality in French.
Solutions for a machine that runs heavily or has issues with stitch selection.
Troubleshooting machine skipping stitches in Dutch.
Addressing needle thread breakage issues in Dutch.
Troubleshooting needle breakage in Dutch.
Addressing issues with uneven stitches in Dutch.
Solutions for irregular feed dog function in Dutch.
Troubleshooting machine skipping stitches in German.
Addressing needle thread breakage issues in German.
Troubleshooting needle breakage in German.
Addressing issues with uneven seams in German.
Solutions for irregular feed dog function in German.
Troubleshooting machine skipping stitches in English.
Addressing needle thread breakage issues in English.
Troubleshooting needle breakage in English.
Addressing issues with uneven seams in English.
Solutions for irregular feed dog function in English.
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