Baby Lock Lauren (BL450A) Instruction and Reference Guide - Manual (Page 21)

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6. Lower the presser foot and sew
hem, guiding fabric evenly along
the plastic guide.
7. When hem is completed, open
the fabric and press hem.
CORRECT THREAD TENSION
The upper and lower looper threads
are crossed on the cut edge of
fabric.
SEWING WITH UPPER BLADE DISENGAGED
When sewing without trimming, disengage the moving blade as shown below.
Use the blind hem presser foot to insure even seam width.
NOTE: When using the blind hem foot, always remove the left needle.
1. Unplug the machine.
2. Open the front cover.
3. Turn handwheel toward you until
the upper blade is at its lowest
point.
4. Push the upper blade to the right as far as it will go and turn knob in
opposite direction until it clicks into position.
5. To re-engage, push blade holder to right and turn blade towards you
until it clicks into position.
sewing
Adjust the plastic guide by turning the screw so that
the stitches are just over the folded edge.