Operation Manual

39
Sewing stitches - Buttonholes
Automatic Standard Buttonhole with Auto-Length
Automatic buttonhole foot with slide No. 3A
Automatic standard buttonhole
The lens on automatic buttonhole foot 3A automatically registers the length of
the buttonhole for exact duplication.
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the active step blinks on the screen
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1
Programming the standard buttonhole
1. sew the first bead forwards, stop the sewing computer
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press the Quick reverse button
«auto» and the presser foot no. 3A appear on the display = buttonhole length
is programmed.
the sewing computer sews the following automatically:
2. straight stitches in reverse
3. the first bartack
4. the second bead forwards
5. the second bartack and securing stitches
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the sewing computer stops and returns automatically to buttonhole
begin
Auto-buttonhole
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all subsequent buttonholes will be sewn to exactly the same length (no
need to press the Quick reverse button)
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clear the program by pressing the «clr» button
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the programmed buttonhole can be saved in the long-term memory (refer to
page 42)
Sewing speed
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sew at moderate speed for best results
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sew all buttonholes at the same speed for a consistent bead
density
The slide foot must lie perfectly flat on the fabric! If the slide
foot rests on a seam allowance, the length cannot be measured
accurately.
When any automatic buttonhole is selected, presser foot no. 3 is
indicated on the screen.
033301.71.04_2014-02_Manual_B330_B350_PE_B380_EN