JUKI LS-321 - Page 131

LK-1903, 1903/BR25 (June, 2001) 3/4
φB
φC
A
Model name
Sewing speed
Needle (at the time of delivery)
Button configuration
Sewing pattern number
LK-1903S-305
1,500rpm
TQ×3 (#14)
18, 19, 20, 21, 22
Outside diameter
Diameter of hole in button



φ8〜φ20



φ1.5 or more
Position of hole in button Configuration of shank
B (mm)
1
3
5
Min.
4
3
--
A (mm)
Max.
9
8
7
＊No model is provided with a button feeder.
Model name
Button type
Outside diameter that
can be adjusted (mm)
Sewing
size (mm)
Button clamp
jaw lever
Length
width
Button
neck
height
(mm)
Part No.
RightLeft
LK-1903-301
For small button
φ10〜φ20
0〜3.5
0〜3.5
1.7
(2.2)
(2.7)
(0.9)
1.6
(1.8)
＊(1.1)
φ3.5
φ1.6
MAZ-15501000
(141-49603)
＊(D2426-284-Y00)
MAZ-15502000 (□8.5)
A
B
C
Part No.
Needle hole
guide (mm)
Feed plate
1.6
φ3.5
φ2.0
MAZ-15601000
MAZ-15602000 (□10)
1.4
φ3.5
φ2.0
MAZ-15701000
MAZ-15702000 (□12.5)
1.6
(1.8)
φ2.8
φ1.6
MAZ-15801000
(141-49900)
--
MAZ-15502000 (□8.5)
141-48852
(MAZ-155070B0)
(MAZ-156070B0)
＊(B2555-3720A0)
141-48951
(MAZ-155080B0)
(MAZ-156080B0)
＊(B2557-372-0A0) 
K
B
C
--
K
B
C
--
141-49058
(MAZ-155070B0)
(MAZ-156070B0)
--
141-49157
(MAZ-155080B0)
(MAZ-156080B0)
--
L
B
C
--
L
B
C
--
MAZ-157070BB
(MAZ-157070BA)
--
--
MAZ-157080BB
(MAZ-157080BA)
--
--
D
E
--
--
D
E
--
--
MAZ-158070BB
(MAZ-158070BA)
--
--
MAZ-158080BB
(MAZ-158080BA)
--
--
G
F
--
--
G
F
--
--
LK-1903-302
For medium-size button
φ10〜φ20
0〜4.5
0〜4.5
2.0
(2.2)
(2.7)
LK-1903-303
For large button
φ15〜φ32
0〜6.5
0〜6.5
2.7
(3.2)
LK-1903-304
For extra-small button
1.7
(2.2)
φ8〜φ9
0〜2.5
0〜2.5
φ9〜φ10
0〜3.0
0〜3.0
φ10〜φ15
0〜3.5
0〜3.5
Notes: 1. Parts of which part number is shown in parentheses are optional.
2. "B", "C", "D", "E", "F", "G", "K" and "L" are the markers engraved on the attachments.
3. Please install all of the parts marked "＊" on 0.9mm set up.
MODELS CLASSIFIED BY BUTTON SIZES
FOR SEWING SHANK BUTTONS
7