Singer 5122 - 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
clicks
into
place.
Allow
7.5cm
(3
inches)
of
thread to hang free from bobbin
case. 5_1
" Close hook cover. Be
sure thread does not
get caught when hook cover is closed. C
ADJUSTING BOBBIN-THREAD TENSION
The bobbin-thread
tension has been set at the2
D
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-
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
hook cover and remove the bobbin
case
as instructed on page 12.
" Slowly turn screw D to the left, using
the
small screwdriver
in your
accessory box,
un-
til desired stitch appearance is reached.
* When
stitching is completed, turn screw D to
the right,
back to original position, for all
other
sewing.
Well Balanced Stitching
13