Inserting The Bobbin; Checking The Bobbin Thread Tension; Correcting The Tension - Pfaff Tiptronic 6230 Instruction Manual

Inserting the bobbin
F
Insert the full bobbin in the bobbin case.
When doing so, pull the thread sideways
through slot A, then under tension spring B
until
it
rests in the opening (see arrow).
Check:
When you pull the thread, the bobbin must
turn clockwise.
Checking the bobbin thread tension
Hold the bobbin case by the thread and move
your hand sharply upwards. The bobbin case
must slip downwards a little with each hand
movement.
Correcting the tension:
Turn adjusting screw C just a little to the left
to decrease the bobbin thread tension.
Turn screw C lust a little to the right to
increase the tension.
Inserting the bobbin case
Lift cover F and push the bobbin case fully
onto pin 0 of the sewing hook. Opening E of
the bobbin case must face upwards.
Check:
Pull the bobbin thread sharply; the bobbin
case must not fall out of the hook.
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