Note:
Needles for
591D305A.
Use catalog
number
1515 and corresponding
needle
bar
for the 1/16" and
3/32"
trim margins.
A bent needle will cause your machine to skip stitches and drift away
from
a
desired
sewing
direction.
A
hook
or
burr
on
the
needle
point
will result in a blurred finish and
may
cut
the
material.
THREAD
In the Class 591, use
ONLY
left twist thread in the needle. Either
right or left twist thread can be used in the bobbin. To determine the
thread twist, hold the thread as shown below. Then roll the thread held
by the right hand over toward you —if the strands of the thread wind
tighter, the thread is left twist; if the strands unwind or separate, the
thread
is
right
twist.
HOLD
THIS
END
ROLLOVER
Fig. 5
i
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