12.
INSTALLATION
AND
OPERATION
OF
THE KNIFE
Knife operation:
(I)
To
actuate the cutting knife
..
press
down Knife operating plate (
1)
to
lo\ver the knife while running the
sewing machine.
II"'Cn'--+ (2)
To
stop cutting
of
the knife tor
7
sewing only. pull out Knob(2) as
indicated
by
the arrow.
Knife installation:
Install the cutting knife
as
shown in the
tigure. When bringing the knife to the
lowest position. move it up and down to
make sure the part A
of
the knite
is
0-0.Smm lower than the surface
of
the
needle plate.
Cutting
width change:
(I)
The cutting width can be varied
by
changing needle plate assy. When
changing, loosen Set Screw(I) and
pull out cutting knife parallely to
ensure a good cutting quality.
(2) Due to the change
in
the size
of
needle plate assy. you nuast change
the position
of
the cutting knife
accordingly. Loosen Screw(2) to
anake
the edge
of
cutting knife touch
the edge
of
needle plate assy, then
tighten the screw·again.
(3) 3.2mm is the standard
specification
of
this needle plate
assy.
