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Pfaff 433 - Page 11

Pfaff 433
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Pass
the
thread
from the
thread
unwinder to
thread
guide pin 1
and
through
both holes in order to keep the thread from whipping
at
high speed.
By
the
same token, pass it through all three holes in thread retainer 2 as shown
in photo 6, then between tension discs 3, through thread check spring 4,
under thread regulator 5, through guide 6, up and from right to left through
eyelet 7 in the take-up lever, down and through thread guides 8 and 9, and
from left to right through need'le eye 10.
8.
Drawing
Up
fhe
Bobbin
Thread
Hold the
end
of
the
needle
thread
and
turn the
balance
wheel
toward
you
until the needle moves down and up again, thus catching the bobbin thread
which
will
come up through the needle hole
in
a loop. (Photo 7). Lay both
threads
back under the
presser
foot.
Moke sure that fhe take-up lever is in Its highest position olwoys when
beginning
or
ending
a
seam.
Failure to observe this precaution may cause thread
jamming
or unthreading
of the needle. In this
case,
it is
not
necessary
to hold the
threads
when
beginning to
sew.
4^
Photo
7
From the library of: Superior Sewing Machine & Supply LLC

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