JUKI LK-1900B series Engineer's Manual

– 99 –
8. Sub-class information
(1)Modelsclassiedbybuttonsizes(LK-1903B,1903BN)
Model name LK-1903B-301 LK-1903B-302 Optional
Button size classication For Extra-small buttons For small buttons
(accessories)
For medium-sized
buttons
For large buttons
Outside diameter that can be adjusted
(mm)
ø
8 to
ø
9 ø9 to ø10 ø10 to ø15 ø10 to ø20 ø10 to ø20 ø15 to ø32
Sewing size (mm) Lengthwise (Y) 0 to 2.5 0 to 3.0 0 to 3.5 0 to 3.5 0 to 4.5 0 to 6.5
Crosswise (X) 0 to 2.5 0 to 3.0 0 to 3.5 0 to 3.5 0 to 4.5 0 to 6.5
Button clamp jaw lever
(combination)
Thickness (mm) 1.7
(2.2)
1.7
(2.2)
(2.7)
*(0.9)
2.0
(2.2)
(2.7)
2.7
(3.2)
Engraving Engraving Engraving Engraving
Part No. Right MAZ158070BB G 14148852 K 14149058 L MAZ157070BB D
(MAZ158070BA) F (MAZ155070B0) B (MAZ155070B0) B (MAZ157070BA) E
- - (MAZ156070B0) C (MAZ156070B0) C - -
- - *(B25553720A0) - - - - -
Left MAZ158080BB G 14148951 K 14149157 L MAZ157080BB D
(MAZ158080BA) F (MAZ155080B0) B (MAZ155080B0) B (MAZ157080BA) E
- - (MAZ156080B0) C (MAZ156080B0) C - -
- - *(B25573720A0) - - - - -
Needle hole guide (mm)
ø B
ø C
A
Height of boss A 1.6
(1.8)
(1.6)
(1.8)
*(1.1)
1.6 1.4
Outside diameter
of boss B
ø2.8 (ø3.5) ø3.5 ø3.5
Diameter of hole
C
ø1.6 (ø1.6) ø2.0 ø2.0
Part No. MAZ15801000 (MAZ15501000)
(14149603)
MAZ15601000 MAZ15701000
(14149900)
- *(D2426284Y00)
Feed plate MAZ15502000(
□
8.5)
←
MAZ15602000(
□
10) MAZ15702000(
□
12.5)
●
Items in ( ) are optional.
●
* For common use
Model name Option (LK-1903B-305)
Button type For shank buttons
Max. Sewing speed 1,500 sti/min
Button conguration Outside diameter ø8 to ø20
Diameter of hole in
button
ø1.5 or more
Position of hole in
button
1.5mm or more
Conguration of
shank
B
A
B (mm)
A (mm)
Min. Max.
1 4 9
2 3 8
3 - 7
Sewing pattern No. 18, 19, 20, 21, 22
Optional parts for shank button
Part No. Names of part
14146054 Button clamp unit (compl.) for shank button
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 TQ × 3 # 14

JUKI LK-1900B series Specifications

General

Brand	JUKI
Model	LK-1900B series
Category	Sewing Machine
Language	English