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
Turn Cl0ckwise.
DECREASE TENSION
Turn Counter
Clockwise,
13
