Two needles upper threading – SINGER 431 User Manual
Page 40
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TWO NEEDLES
UPPER THREADING
Use size 50 mercerised thredd.
Thread as for single needle (see page 8).
Make certain that both threads are separated by
the centre guide post of the thread control and by
the centre tension disc.
Carry only one thread through the last guide
before the needle, as shown below.
I ^
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