Ill
Knife
mechanism
(1)
Stitch width
(1) Insert the spring
into
the lower knife holder
0,
and attach them
to
the needle plate support plate @
using the screw
@).
(2)
Temporarily attach
the
lower knife 0
to
the lower knife holder 0 using the lower knife holder and
the bolt.
(3)
Align the
tip
of
the lower knife 0
with
the needle plate top, and tighten the bolt.
(4)
Loosen
the screw
@).
Adjust the position
of
the lower knife holder 0
by
moving
it
to
the
left
or right
so
that
the
stitch
width
is
equal
to
the
stitch tongue width.
(The
right
side
of
the lower knife 0 should
be aligned
with
the extended line equal
to
the stitch width.)
(5)
Insert
the
nut@)
into
the
upper knife differential arm
<9.
(6)
Temporarily attach the upper knife
fi
to
the upper knife holder (D using the bolt.
(7)
Temporarily attach
the
upper knife holder@)
to
the
upper knife differential arm
<9.
-57-
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