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Upper tension (41)
•
A
=
Setting mark. The normal tension
•
I
setting is in the white range between
3 and 5. The higher the number, the
tighter the tension.
Lower tension
B
=
Regulating screw.
Turn it left for a looser tension, or
right for a tighter tension.
o
=
Both tensions are correct.
D
=
Upper tension too loose or lower
tension too fight.
E
=
Lower tension too loose or upper
tension too tight.
10
j
The correct lower tension
Let the bobbin case with a full bobbin
hang down freely by the thread. It must
not slide down by its own weight, but
should gradually move downwards when
you jerk your hand upwards lightly.
• 1
N
4
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