Singer 457U135 - THREADING BOBBIN CASE; Bobbin Case Threading Steps; Slot Selection for Material; THREAD TENSIONS

THREADING BOBBIN CASE
Draw thread down
and under spring
0 Pull thread
into slot
o Draw thread up
Into delivery eye
Lead thread
into slot in
bobbin case
Use slotO when sewing Light-weight material.
Use slot ©when sewing medium-weight material.
THREAD TENSIONS
BOBBIN THREAD
NEEDLE THREAD
4
More
Tension
Less
Tension
Tension on threads should
be as light as possible, while still
sufficient to set stitch
correctly in material.
More tension
Less tension
Regulate needle thread
tension only when presser foot is down.
From the library of: Superior Sewing Machine & Supply LLC