Necchi Supernova, Instructions Manual

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To correct this condition, make certain that the presser foot is
down, then turn Tension Regulating Knob to the left.
If tension of needle thread is too loose, or tension of bobbin
thread is too tight, bobbin thread will lie straight along underside
of fabric and needle thread will be pulled down to underside,
being visible there in, the form of loops or small knots (Fig. 14). To
correct this condition, make certain that the presser foot is down,
then turn Regulating Knob to the right.
Make several stitches to check whether needle thread tension is
correct, and, if necessary, adjust further by turning Regulating
Knob.
mm.
Fig. 14
Cleaning.
To clean the machine, prepare a mixture of 90 % kerosene and 10
% lubrication oil. Fill an oil can with the cleaning fluid, and also
pour a sufficient quantity of this liquid into a pan.
If the machine, due do dirt and gummed oil, runs heavily, force
with the oil can, plenty of the cleaning fluid into all oil holes and on
to all movable parts. Then run the machine at high speed until all
dirt and hardened oil is washed out.
Should some parts of the various mechanisms of the machine
have become badly clogged with dirt and gummed oil, remove
these parts from the machine and place them for a while in the
pan filled with cleaning fluid. After the dirt and gummed oil have
become loose, clean the parts with a small brush dipped in the
cleaning fluid. Then wipe them dry with a soft clean rag.
The electric motor must always be kept dry. Only the motor shaft
requires a few drops of oil from time to time.
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Copyright -2004