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Whenstitchingis unsatisfactoryas in
figures2 and3, adjusttheupperthread
tension Lower thread tension requires
adjustment less frequently than the
upper thread tension.
When stitch is satisfactory, as in figure
1 and seam is badly puckered, the cause
may be tight tensions and both upper
and lower may be adjusted. (See page
32)
When adjusting the tension on the
bobbin case, make slight adjustments
with a screwdriver (See page 32)
It is necessary to reduce the upper
thread tension somewhat when doing
decorative stitching,. As the stitch
width is increased, the tension should
be decreased (See page t7)
INCREASE TENSION
DECREASE TENSION
Turn Cl0ckwise.
Turn Counter
Clockwise,
13