Otto Bock 21A47 Instructions For Use Manual page 18

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5) Trim any excess strap.
6) Take off the product.
7) Melt the cut edge of the strap.
INFORMATION: All fibres must be
melted to prevent fraying of the strap.
8) Sew on the strap in a rectangle.
9) Repeat this process twice.
INFORMATION: On a sewing machine,
select the "straight" stitch with a stitch
length of "2.5".
10) Check the seam on the back of the
shoulder flap for regular stitching.
11) Trim the threads as short as possible
without damaging the seam.