Threading The Lower Thread; Insertion Of The Bobbin Case - Husqvarna Viking 3600 Operating Manual

Threading the lower thread
When the bobbin is wound, place it in its case with the hole
upwards The thread is then running as shown in the fig.
Slide the thread into the slot on the edge of the bobbin case.
Pull the thread in under the tension spring. Check that the
bobbin rotates in the direction of the arrow when the thread is
pulled.
Insertion of the bobbin case
Push the bobbin case onto the spindle of the shuttle (hook) so
that the projection of the bobbin case fits in the notch at the
top of the shuttle cover. Press on the bobbin case slightly to
be sure it is latched onto the spindle of the shuttle. Let the
thread hang. Shut the door.
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