SINGER 10UJ13 - Manual (Page 11)

(2) Method for inserting lower thread
Open the front cover, then insert the
thread in the order as shown in Figures
25 and 26. The end of the lower
thread also should be pulled out about
10 cm. After inserting the thread, close
the front cover.
In this case, the thread that has been
pulled out may be left as it is. There
is no need to pull it out to the surface
of the throat plate.
* Threading for double chain stitching is diagramed in
blue also inside the side cover.
3-3 Sewing
(1) Set the cloth as shown in Figure 27.
When beginning to sew, the first few
stitches should be made slowly.
(2) If the tension balance between the
upper and lower threads is not satis­
factory, puckering may result in the
cloth or the seams will become irregular.
Please refer to the section "Thread
tension adjustment". (Page 11)
(3) After completing the seam, sew 3—5 cm
of additional stitching from the end of
the cloth as shown in Figure 28 before
cutting. With regard to disposal of the
thread chain, either tie the threads at
the edge of the cloth or, if the cloth is
of knitted material, fold back and fix
with a crochet needle.
In case the seam needs to be strength­
ened, the same position should be sewn
twice in a parallel line.