Pfaff creative 2124 Owner's Manual page 32

Bringing up the bobbin thread
Raise the presser foot. While holding the end of the needle
thread, press the foot control so the needle moves down and up
one time.
Pull the needle thread to draw up the bobbin thread.
Close the bobbin door and pull the top and bobbin threads
under the presser foot to the left.
Presser foot lifter
The presser foot is raised or lowered with the presser foot lifter
(37). To put the presser foot lifter in the darning position you
should lower the presser foot lifter and push it backwards until it
engages in the darning position.
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