104
3
2
1
2 mm
0.5 to 1
mm
Needle
(8 mm zigzag
extreme left)
Needle
(8 mm zigzag
extreme left)
■ Position of the wiper
1) Adjust the white marker dot on the handwheel 1 to
the position where it is aligned with the marker dot on
the pulley cover 2, quietly press wiper link A to move
wiper 3. The wiper recedes by the ratchet when going
and the position where the wiper returns to its home
position is in the center of needle or the position
exceeding the center of needle.
Besides, adjust with wiper setscrew 5 so that when
wiper 3 comes to the position of the center of needle
when returning, the clearance between the wiper and
the needle tip should be approximately 2 mm and
that between the wiper and the side of needle should
be approximately 1 mm.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
To be convex by 1 to 3 mm
To be almost
parallel
2) The top end plane of wiper 3 should be positioned
to be almost parallel to the end plane of clamp head
4. Besides, set the clamp head so that the upper
side is the protruding section.
3) Adjust the maximum stroke of the wiper to the
position of 1 to 3 mm from the left end plane of the
presser of standard delivery.
™ Presser (asm.) of standard delivery
(Part No. 40003542)
™ Optional
Presser (asm.) for narrow width
(Part No. 40003549)
(For zigzag width 4 mm or less)
8-13. Adjusting the bird's nest prevention (CB) type wiper
4
3
4
3
5
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