8.
Sharpening
the
counter
knife
Horn
this
corner
Sharpen
this
face-./
\
Blade
tip"""^^
y
^
N
1 /
"*
Counter
knife
Moving
knife
Needle
center-
a
Shorter
I
The
remaining
length
of
the
thread
becomes;
-
27
-
As
soon
as
you
noticed
that
the
thread
trimmer has become dull, resharpen the
counter
knife
immediately.
Put
the
resharpened
counter
knife
back
to
it's correct position shown by the following
illustration.
If you move the installing position
of
the
counter
knife to the right from the standard
position, the length of thread remaining on
the needle
after
trimming becomes longer
and
vice
versa.
I .omm
Bottom
face
of
the
throat
plate
—
Stepped
part
of
the
bed
Counter
knife
Longer*
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