Sewing Studio manual
1. Industrial sewing machines
1.5. Operating and adjusting instructions (video)
Adjusting thread tension
- Higher (tighter) for thick materials.
- Lower (looser) for thin materials.O
- Test the stitch quality on a piece of fabric of before starting to sew.
![Langankireyksien säätäminen](https://mycourses.aalto.fi/pluginfile.php/1232050/mod_book/chapter/4322/Langankireyksien%20s%C3%A4%C3%A4t%C3%A4minen.jpg)
Stitch length and width
- Longer for thick materials.
- Shorter for thin materials.
- Test the stitch quality on a piece of fabric of before starting to sew.
Adjusting the presser foot pressure
- This adjustment is rarely required.
- Use higher pressure on heavy materials.
- Use lower pressure on thin and poorly feeding material.
- Test the pressure by sewing on a piece of fabric.
- Please note: Loosen gently, the metal rod and spring in the adjusting tube will come loose if the grooves run out.