Brother SE400 Sewing Machine Instruction Manual.
Includes:
Threading the upper thread.
Bobbin winding.
Thread tension dial.
Changing the machine settings.
Checking the needle.
Viewing the LCD.
Free-arm sewing.
Zipper insertion.
Buttonhole sewing.
Attaching the embroidery frame.
Connecting character patterns.
Using an embroidery card.
Attaching the embroidery unit.
Eyelet stitching.
Adjusting the LCD.
Troubleshooting.
Cleaning.
Much more!
167 pages instruction/owners manual.
Brother SE-400
We also carry the service and parts manual here
Adjusting the thread tension
You may need to change the thread tension, depending upon the fabric and thread being used. Correct thread tension
The upper thread and the bobbin thread should cross near the center of the fabric.
Only the upper thread should be visible from the top side of the fabric,
and only the bobbin thread should be visible from the bottom side of
the fabric.
See illustration.
Upper thread is too tight
If the bobbin thread is visible from the top side of the fabric, the upper thread is too tight.
Note*
If the bobbin thread was incorrectly threaded, the upper thread may be too tight.
In this case, refer to “installing the bobbin” (page 27) and re-thread the bobbin thread.
Turn the thread tension dial to the left to loosen the upper thread.
Thread is too loose.
If the upper thread is visible from the bottom side of the fabric, the upper thread is too loose.
Note*
If the upper thread was incorrectly threaded, the upper thread may be too loose.
In this case, refer to “Threading the upper thread” (page 32) and re-thread the upper thread.
Turn the thread tension dial to the right to tighten the upper thread.
If the upper thread is not threaded correctly or the bobbin is not
installed correctly, it may not be possible to set the correct thread
tension.
If the correct thread tension cannot be achieved, re-thread the upper thread and insert the bobbin correctly.
The level “4” on the tension dial is a guide for working normal fabrics
(medium-weight) however, the actual stitch tension you’ll want to use
will vary according to the fabric and thread you are using, so you
should always sew a stitch sample and adjust the stitch tension before
beginning on the actual piece to be worked.
The machine may stop sewing if the tension is set extremely low.
This is not a sign that there is anything wrong with your machine.
Simply adjust to the correct stitch tension and begin again.
Brother SE400 Sewing Machine Instruction Manual
