Singer 4843116 - Left and Right Side Balance for Buttonhole

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r_ Left and right side balance for
buttonhole
Stitch density on right and left sides of buttonhole can be
adjusted by buttonhole balance control dial.
This dial should usually be in a neutral position. (between
"+" and "-")
If the stitches on the left side of the buttonhole are too close
together, turn the dial to the left (+).
* Turning dial to the left opens left side.
If the stitches on the left side of the buttonhole are too open,
turn the dial to the right (-).
* Turning dial to the right closes left side.
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