Reverse Sewing
To backtack the beginning
or
end
of
a seam, the machine
is
briefly switched
to
reverse stitching by depressing spring-loaded finger-tip control H. The
machine can
be
switched
to
backward sewing, regardless
of
the stitch length
set.
When
the control
is
released, the machine resumes forward sewing
auto-
matically. If a longer stretch
of
seam
is
to
be
sewn in reverse, turn the stitch
length
dial
counter-clockwise
past
0, setting it
on
one
of
the two unnumbered
graduation
mar
ks
(Fig.
24}
.
First mark
Second mark
I.
Fi
g.
25
s
short reverse stit
ch
es,
long reverse stitches.
II.
Fig. 26
Fig .
2S
Bobbin t
hread
tension S
14
Ill.
Fig.
27
Fig.
29
Needle
thread tension M