－
100
－
3-4. Adjusting the work clamp rod (For 1903BBS only)
3-5. Replacing the non-slip sheet (For 1903BBS only)
Non-slip unwoven cloths
can become dirty. In
such a case, cut the non-slip sheet supplied with the
unit as an accessory into the size as shown in the
gure and stick it after removing the dirty cloths.
Stick the sheet (20 mm in length and 10 mm in
width) so that its longitudinal center of the sheet is
ush with the center of feed plate
.
10mm
20mm
Fit work clamp rod
in the slit in button guide foot
. Fix the work clamp rod with setscrew
while
pushing the rod upward.
The correct position of work clamp rod
is as shown below.
Lateral position: The longitudinal center
is aligned with the center of the button.
Vertical position: The undersurface of the
work clamp rod is in parallel with the un-
dersurface of button guide foot
.
To adjust, check to be sure that work
clamp rod
is positioned as described
above.
Be aware that loose stitches can be
caused if work clamp rod
is deformed
or is positioned excessively low. Place
the clamp rod at the correct position.
Parallel
Vertical position
Lateral position
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