5. How
to
sharpen
the
knife blade
The
shape
of the
blade
tip of the
fixed
knife
greatly
affects
the
cutting
power
ofthe
knife.
In
most
cases,
just
sharpen
the
blade
of the
fixed
knife and the cutting
becomes
sharper.
1)
It is
very
important
that
the
blade
surface
of
the
moving
knife
should
contact
the
blade
of
fixed
knife.
©
Just
sharpen
the
"A"
surface
(Fig.27)
and
cutting
becomes
better.
(Note
the
angle
shown
by
X in
Fig.27)
®
The
cutting
power
becomes
weak
when
the B
surface
tip
is
sagging
and
blunted.
So,
do
not
change the angle
of
x when sharpening.
®
When
cutting
power
is
not
so
good
even
though
the
blade
tips
are
sharpened,
it
is
because
the
blade
surface
of the
moving
knife
and the
fixed
knife
is not
contacting
to
right
andleftat the
same time. Correct
the
inclination angle of
the
fixed knife.
♦
To improve the contacting of the
moving
and fixed knife,
change
the
angle
of the arrow
mark of Fig.29.
When
the D side of Fig.28 does not cut well,shorten the angleand when the C side
does
not
cut
well,
make
the
angle
larger.
Shave
off
corners
and sharpen well
Sharpen this surface
A
surface
Blade
tip
B
surface
Fig.
27
Fixed
knife
Moving knife
Fixed
knife
C&D
parts
of
moving
knife
and
fixed
knife
should contact each other at the same time
Fig. 28
Changing
the
moving knife
To change the moving knife, do as follows:
1)
Loosen
the
knife
forked
base
pin
set
screw
(Fig.32
®)
and
pull
out
the
knife
forked
base
pin
(Fig.32
(D).
. . •
/-n
2)
Remove
the
moving
knife
hinge
screw
(Fig.30
®),
move
the
knife
forked
base
(Fig.30
(D)
and
the
moving
knife
(Fig.30
(D)
to
the
position
shown
in
Fig.31
A
and
remove
the
pin
ol
the moving knife from the knife forked base.
3)
Move
the
knife
forked
base
to
the
position
shown
in
Fig.31B
and
remove
the
knife
hinged
screw
(Fig.3IB).
For
this
purpose,
use
the
special
spanner
in the
accessories
box.
Fig. 29
Fixed
knife
Fig.
30
-
20
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