SINGER W1717 - Manual (Page 9)

Inserting Bobbin
Place bobbin in its case with
thread running in direction of
arrow.
Guide thread into slot
bpbbin case.
(a) of
Pulling thread to left, bring it
under tension spring then to
delivery eye (b).
Adjusting Lower Tension
To test bobbin tension, hang and
shake bobbin case as shown.
At proper tension bobbin case
will gradually drop a small
amount.
To adjust tension, turn adjusting
screw with small screwdriver.
Raise needle in the highest
position.
Leave end of thread of about 10
cm (4") from bobbin case.
Take hold of latch and push
bobbin case into shuttle
Release latch when bobbin case
is fully inserted.
DROP FEED LEVER
The lever is in the right side of
shuttle cover. For normal sewing,
move the lever to ^ position.
To lower feed dog, move the
lever to 22 position.
This position is used for button
sewing, darning and embroidery.