Singer 5107 - Page 15

REPLACING THE BOBBIN CASE
1. Hold
bobbin
case by
latch,
with about
7.5cm
(3 inches) of thread leading
off top of case.
2. Align protruding finger A with slot B and
slide case on
to stud C.
* Release the latch and push case
until it 2
B
clicks
into place. Allow 7.5cm
(3 inches) of
thread
to hang
free from
bobbin
case.
* Close cover plate. Be sure thread does not
get caught when cover plate is closed.
ADJUSTING
BOBBIN-THREAD TENSION
The bobbin-thread
tension has been set at the
factory for most types of stitching. You may
wish to adjust the bobbin-thread tension when
straight stitching on fine fabrics or to balance
an open zig-zag stitch. Bobbin and needle
threads lock at the corner
of each stitch when a
zig-zag stitch is balanced. To adjust the bob-
0
bin-thread tension, follow the procedure below
using
two layers of
scrap fabric.
* Raise the presser foot.
* Raise
needle to highest position by turning
the
hand
wheel
toward
you.
* Open cover plate and remove
the bobbin
case
as
instructed
on
page
1 2.
* Slowly turn screw D to the left, using the
small screwdriver in
your accessory box.
until desired stitch appearance is reached,
* When stitching
is completed, turn screw D to
the
right, back to original position, for
all
other sewing.
Well alanced Stitching