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12. REPLACING PARTS
12. ERSETZEN VON TEILEN
12. REMPLACEMENT DES PIECES
12. CAMBIO DE PARTES
12-2. Edge knife
q
i
! 1
o
! 0
o
o
! 0
o
149
1536M
w
1538M
e
r
y
u
! 2
t
0.03~0.05mm
i
o
t
!2
!3
1539M
ZE-8570,8580
I Removal
1. Remove the two screws q, and then remove the bed
plate w.
2. Loosen the set screw r of the set collar e to release
the cutting pressure of the edge knife t.
3. Remove the screw y, and then remove the needle
plate cover u.
4. Use the accessory Z-shape screwdriver to remove the
screw i, and then remove the edge knife t.
5. Remove the two screws o, and then remove the fixed
edge knife !0 .
I Installation
NOTE:
Either side of the standard fixed edge knife can be
used.
1. Place the fixed edge knife !0 into the groove in the
needle plate !1 so that dimensions A and B in the il-
lustration are equal to each other, and then secure it
by tightening the two screws o.
2. Use the Z-shaped screwdriver to tighten the screw i
to install the edge knife t so that it gap between it
and the fixed edge knife !0 is 0.03 to 0.05 mm.
* If the edge knife t cannot be installed at a slight
angle, or if it does not cut properly, install the edge
knife t to the edge knife bracket !2 , and then loosen
the two screws !3 and tilt the edge knife bracket !2
so that the edge knife t is at a slight angle.
However, if the angle is too large, the blade will
reach the end of its useful life more quickly.
3. Adjust the cutting pressure of the edge knife t using
the set screw r of the set collar e. (Refer to page 170.)
4. Install the needle plate cover u with the screw y.
5. Install the bed plate w with the two screws q.
<For optional fixed edge knife>
! 1
! 0
Align centers of
grooves ! 0 and ! 1 .
1627M
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