SINGER W3851 User Manual
Page 16
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Regulating the needle tension: Minor imperfections in
the stitch can usually be corrected by varying the
needle tension only.
Decrease
Tension
Increase
Tension
To increase the tension, turn the thumb nut clockwise and to lessen the tension, turn the nut in
the opposite direction. The tension adjust from 0 to 9 in one turn, with 0 being the lightest
tension and 9 being the tightest. All adjustments should be made gradually, not abruptly, and the
required tension setting will vary with the size of thread being used. A little practice will make
instant tension adjustments possible. All adjustments should be made
while the presser foot is
down since an automatic release does not permit adjustments to be made
when the foot is up.
If
a
perfect
stitch cannot be obtained by adjusting the needle thread tension, it may be
necessary
to adjust the bobbin thread tension as explained on page 8, Fig. C.
This machine is correctly adjusted before leaving the factory and checked and readjusted before
the dealer delivers to you. A careful regulation of the tensions on this machine will assure you
of the finest seams that mechanical design will produce.