To wind bobbin, Lower tension, To thread bobbin case tension – SINGER WRotary (Book 10) User Manual
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Turn the machine in direction for sewing until the point of the
needle just enters the needle plate hole; take the shuttle by the
center pin W with the left hand and place it in the race, so that
point of shuttle will be fi’om you and over arrow on thread cast off,
so that the holes in the shuttle will drop on to driving pins in race,
then replace the shuttle race cover.
DO NOT FORCE the shuttle into race. It will enter readily
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--- -
Should the machine at any time act badly in sewing or running
it would be well to remove shuttle and clean it and the race, which
is but a moment’s work.
To replace the bobbin case, it need not be held as when remov
ing, but simply slip it on the pin in shuttle, with the tension project
ing upward, and push it into shuttle as far as it will go, when the
spring latch will pass over and retain it in that position.
The thread should be allowed to project about one inch from
TO WIND BOBBIN
^
Place spool on spool pin, pass the thread down ^
through the rear hole in arm of cover plate, then to
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hole. Put the end of thread through hole U in bobbin S
from inside out, place bobbin on
bobbin winder spindle, raise winder
so belt will drive it, loosen thumb % Bobwn
screw in hand wheel, run the machine as in sewing,
holding on to the end of thread until winding is
started, then break off thread and finish winding.
LOWER TENSION
Pig. 8 represents the bobbin case. To regu
late the lower tension, turn the screw T to the
right to tighten, and to the left to loosen the same.
TO THREAD BOBBIN CASE TENSION
Place bobbin in case so that thread will come from bobbin on
same side as hole B in bobbin case; pass thread through slot A to
hole B thence across opening, drawing it down under lip C then
pull it up until thread passes out under tension spring D.
The tension on bob
bin case should be the
same as the upper ten
sion.
Fig. S, Bobbin Case
Fig. 9, Shuttle
Fig, 10, SHrattle H»«e Cove»