Additional
instructions
for
Pfaff
machines
4141
and
4145
Pfaff
machines
4141
and
4145
closely
resemble
Cl.
141
and
145
machines
m
their
mecha
nical
setup,
exterior
design
and
dimensions.
Instead
of
a
vertical
rotary
hook,
however,
both
machines
are
equipped
with
a
constant-motion
rotary
looper
which
moves
coun
ter-clockwise.
in
addition,
they
are
fitted
with
a
thread
nipper
which
is
operated
by
the
needle
bar
crank.
Apart
from
the
needle
threading
instructions,
the
general
instructions
given
for
Pfaff
ma
chines
141
and
145
apply
to
Pfaff
machines
4141
and
4145
also.
(Since
the
latter
ma
chines
are
chainstitch
sewing
machines,
bobbin
winding
naturally
is
omitted.)
R
6312
28.
Threading
of
the
Pfaff
4141
and
4145
Pass
the
thread
from
the
spool
up to the top thread guide of
the
thread
stand,
then
down
and through both holes in the
pin on the machine arm,
through the upper hole in the
thread
guide
on the machine
arm (as shown in Fig. 29),
around
the
pin.
through
tf\
lower
hole
in
the
thread
guide,
clockwise
around
and
be
tween
the
tension
discs,
from
right to left through the hole
in
the
take-up
lever, below
the
lever
of
the
automatic
ten
sion,
through
the lower
thread
guide and the thread guide
on
the
needle
clamp,
and
from left to right through the
needle
eye.
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