Pfaff 339 Owner's Manual - Page 57

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Threading Place a spool of thread onto each of the two spool pins. Pass both threads together as usual through the two thread guides, then separately around the upper tension cne thread on each side of the centre disc; and through the holes of the thread tche-up lever and again together through the next thread guide. Now pass one thread each through the eyelets on the piping head and from front to back through the needles (as with twin-hem needle pictured on page 38). When picking up the bobbin thread, hold both upper threads with your left hand. ?iping Techniqies sewing slightly pronounced piping in thick and fairly thick material, no gimp thread is used. You can now start sewing immediately at a stitch length of prefer ably not more than 5/64". Spacing between the Piping When laying a number of piping stitches lengthwise, just let the edge of the sew ing foot slide along the previous row of piping stitches to ensure neat parallel seams. The spacing can be further reduced by sewing with piping feet with more than one groove, where one of the off-centre grooves glides on the previous row of piping stitches. For extremely narrow piping (also for the hemstitch mentioned on page 37 and for cording, page 53) you can obtain a spe cial piping foot No. 847682 with seven grooves (each 1/16" wide), upon request and at extra charge. If you want to have larger spacings be tween two ore more rows of piping stitch es, you may use the quilting guide 847482 with clamp 847480 referred to on page 29. 59

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Threading
Place
a
spool
of
thread
onto
each
of
the
two
spool
pins.
Pass
both
threads
together
as
usual
through
the
two
thread
guides,
then
separately
around
the
upper
tension
cne
thread
on
each
side
of
the
centre
disc;
and
through
the
holes
of
the
thread
tche-up
lever
and
again
together
through
the
next
thread
guide.
Now
pass
one
thread
each
through
the
eyelets
on
the
piping
head
and
from
front
to
back
through
the
needles
(as
with
twin-hem
needle
pictured
on
page
38).
When
picking
up
the
bobbin
thread,
hold
both
upper
threads
with
your
left
hand.
?iping
Techniqies
sewing
slightly
pronounced
piping
in
thick
and
fairly
thick
material,
no
gimp
thread
is
used.
You
can
now
start
sewing
immediately
at
a
stitch
length
of
prefer
ably
not
more
than
5/64”.
Spacing
between
the
Piping
When
laying
a
number
of
piping
stitches
lengthwise,
just
let
the
edge
of
the
sew
ing
foot
slide
along
the
previous
row
of
piping
stitches
to
ensure
neat
parallel
seams.
The
spacing
can
be
further
reduced
by
sewing
with
piping
feet
with
more
than
one
groove,
where
one
of
the
off-centre
grooves
glides
on
the
previous
row
of
piping
stitches.
For
extremely
narrow
piping
(also
for
the
hemstitch
mentioned
on
page
37
and
for
cording,
page
53)
you
can
obtain
a
spe
cial
piping
foot
No.
847682
with
seven
grooves
(each
1/16”
wide),
upon
request
and
at
extra
charge.
If
you
want
to
have
larger
spacings
be
tween
two
ore
more
rows
of
piping
stitch
es,
you
may
use
the
quilting
guide
847482
with
clamp
847480
referred
to
on
page
29.
59