SINGER W1777 - Manual (Page 16)

Thread in the same way as
normal threading, except at
points (D, d; and
At point (2), pass threads sepa-
ratly to right and left of tension
disc.
At guide (D, pass one of threads
to right guide and the other at
left guide.
At point 0, thread from right
guide should be lead to right
needle eye, and from left guide
to left needle eye.
Leave ends of threads of about
15 cm (6").
Decorative Tucks or
Designs
Any stitch can be used with the
twin needle for decorative effects.
Most attractive are the multiple
stitch zigzag and blind hem stitch
for fancy tucks. The satin stitch
or tapered zigzag designs in two
colors are effective for creative
trims.
Caution: Remember to use no more
than 2.5 zigzag width and needle
position control at C±Z)- fof fvv/n
needle sewing.