Manual

10
UPPER THREADING TWIN NEEDLES
(See Fig. 3 for inserting needles)
Follow threading instructions for single needle
with these exceptions.
Place thread, matching or contrasting in color, on
both spool pins.
Draw threads through arm thread guides (3) then
down and around tension discs (4) with one thread
passing between the back discs and the other between
the front discs. Then into corresponding notches of
check spring. (5) Fig. 12
Now treat both threads as one until yor reach the
needle eyes.
Pass one thread through each needle eye.
Fig. 13-14
Fig. 13
Flat side
of
the shank
Fig. 14