Removing and inserting the bobbin case – SINGER W3851 User Manual
Page 11
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There should be a slight tension on the thread as it
is pulled through the delivery eye and the bobbin
should unwind freely. The tension may be increased
by turning the tension screw tB) to the RIGHT and
decreased by turning the screw to the LEFT.
Fig. (C)
REMOVING AND INSERTING THE BOBBIN CASE
In the following operations the needle must always be ABOVE the surface of the machine.
Raise the needle by turning the balance wheel TOWARD YOU by hand.
Raise the hinged slide plate, with left thumb and forefinger, open the hinged latch (A) at the
front of the bobbin case and hold securely as you withdraw bobbin case from around the holder
post. When held in the above manner the bobbin will not fall out of the bobbin case.
After winding a fresh bobbin and threading the bobbin case, latch (A) with left thumb and
forefinger, to prevent the bobbin from falling out.