How To Replace The Buttons (On The Button Feeder Side) - JUKI LK-1903B Instruction Manual

16. How to replace the buttons (on the button feeder side)

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
When change of the shape of the button, change of the sewing pattern or enlargement/reduction of the
sewing width is performed, make sure of the needle entry point. If the needle extends outside the button
hole or the sewing pattern extends outside the button clamp unit, the needle interferes with the button hole
or the button clamp unit during sewing, resulting in the danger of the needle breakage or the like.
● The following briefly describes the procedure when replacing the buttons.
(1) When the number of holes in a button changes (
Button carrier
(2) When the button thickness changes (
❶
❷
❸
Adjusting plate
A
Button
)
1) The button carrier needs to be changed accordingly.
2) Set the button carrier to the origin of the button carrier (the
position where a button is placed in the button carrier).
3) Select the button carrier suited to the button to be used in
terms of the number of holes in a button and the distance
between the center of holes in a button (hole-to-hole
distance).
4) Set the button carrier in place while pressing it against
stoppers ❶ and ❷ .
5) Set the pattern No. suited to the shape of button and the
sewing width.
Make sure of the needle entry point without fail.
)
1) Adjust so that buttons in the feeder bowl smoothly flow
and the selector plate discriminates the right-sided buttons
from the wrong-sided buttons without fail.
Refer to "Adjusting the feeder bowl components".
2) Adjust the adjusting plate in accordance with the thickness
of the button to be used. To adjust the adjusting plate in
the vertical direction, loosen screw ❸ and set dimension A
approximately to 0.7 mm.
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