– 50 –
ⓦ Items in ( ) are optional. ⓦ * For common use
4. Sub-class information
(1) Models classified by button sizes (LK-1903A)
Model name LK-1903A-301 LK-1903A-302 Optional
Button size classification For Extra-small button For large buttons
Outside diameter that can be adjusted (mm)
ø8~ø9 ø9~ø10 ø10~ø15 ø10~ø20 ø10~ø20 ø15~ø32
Sewing size (mm) Lengthwise (Y) 0~2.5 0~3.0 0~3.5 0~3.5 0~4.5 0~6.5
Crosswise (X) 0~2.5 0~3.0 0~3.5 0~3.5 0~4.5 0~6.5
1.7 1.7 2.0 2.7
Thickness (2.2) (2.2) (2.2) (3.2)
(mm) (2.7) (2.7)
*(0.9)
MAZ158070BB G 14148852 K 14149058 L MAZ157070BB D
Button clamp jaw lever Right (MAZ158070BA) F
(MAZ155070B0)
B
(MAZ155070B0)
B
(MAZ157070BA)
E
(combination) — —
(MAZ156070B0)
C
(MAZ156070B0)
C——
Part No.
——
*(B25553720A0)
—— — ——
MAZ158080BB G 14148951 K 14149157 L MAZ157080BB D
Left (MAZ158080BA) F
(MAZ155080B0)
B
(MAZ155080B0)
B(
MAZ157080BA)
E
——
(MAZ156080B0)
C
(MAZ156080B0)
C——
——
*(B25573720A0)
—— — ——
1.6 1.6 1.6 1.4
A (1.8) (1.8)
*(1.1)
B ø2.8 (ø3.5) ø3.5 ø3.5
C ø1.6 (ø1.6) ø2.0 ø2.0
MAZ15801000 (MAZ15501000)
Part No. (14149900) (14149603) MAZ15601000 MAZ15701000
— *(D2426284Y00)
Feed plate MAZ15502000(8.5) ←
MAZ15602000(
10)
MAZ15702000(
12.5)
Engraving
Model name Option (LK-1903A-305)
Button type For shank buttons
Max. Sewing speed 1, 500rpm
ø8~ø20
ø1.5 or more
Button configuration
Configuration
of shank
Sewing pattern number
18, 19, 20, 21, 22
A (mm)
Min. Max.
149
338
5—7
B (mm)
Optional parts for shank button
Part No. Names of part
14146054 Pick-up device complate
D1401M1YC0A Needle bar (for TQ-1)
MAZ160170A0 Wiper (asm.)
40015434 Moving plate link A
14148209 Bushing
SL6030892TN (2 pcs.) Screw
MAZ16015000 Button support link
SD0640321TP Hinge screw
40010103 Connecting link
SL6040892TN (2 pcs.) Screw
MAZ16021000 Needle hole guide
MTQ300B1400 Needle TQx3 #14
1.5mm or more
B
A
Outside
diameter
Diameter
of hole in
button
Position of
hole in
button
For small buttons
(accessories)
For medium-sized
buttons
Engraving
Engraving
Engraving
Needle hole guide
(mm)
ø C
ø B
A
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