Position Of The Button Clamp Jaw Lever - JUKI LK-1900A Instruction Manual

(2) Selection of the sewing pattern and the sewing width
™ Selection of the sewing pattern is the same as that of the LK-1900A.
™ When the distance between holes of the button used does not fit the standard sewing width of the sewing
pattern No., adjust the sewing width by enlarging/reducing the sewing width.
The way of enlarging/reducing is the same as that of the LK-1900A. Refer to the table given below for the
scale for enlargement/reduction in terms of the sewing width.
™ After changing the sewing pattern No. and the sewing width, make sure of the needle entry point.
As for the way of confirmation, refer to the confirmation of the shape of sewing pattern in the instruction
manual for the LK-1900A.
Table of XY scale in terms of the sewing width
X•Y
2.4 2.6 2.8
(mm)
% 71 76 82

5. Position of the button clamp jaw lever

WARNING :
When change of the shape of button, change of the sewing pattern or enlargement/reduction of the
sewing width is performed, make sure 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, resulting in the danger of the needle breakage or the like.
q
Button
Needle entry point
3.0 3.2 3.4 3.6
88 94 100 106
Hole in the button
4.0 4.3 4.5
118 126 132
1) Press key in the state that the swing LED goes
off using the operation panel.
key. /
2) Press
3) Press
w
the origin position and goes up.
4) Place a button in button clamp jaw levers q.
5) Depress the pedal to the first step and detach your
foot from the pedal when the button clamp unit
comes down.
6) Turn the hand pulley and check that the center of
the needle enters the center of the button.
7) If the center of the needle is not located in the center
of the button, loosen screws w in the button clamp
jaw lever base to adjust so that the center of the
needle enters the center of the button.
8) When depressing the pedal to the second step at
step 5), the button clamp unit moves again to the
origin position. In addition, when the button clamp
unit comes down, depress the pedal to the first step
and detach the foot from the pedal. Then the button
clamp unit goes up.
67
4.7 5.2 5.6 6.0
138 153 165 176
key. The button clamp unit goes to
6.2 6.4
182 188