JUKI LK-1900BN Series User Manual

ii
III. EXPLANATION OF THE LK-1902B,
COMPUTER-CONTROLLED HIGH-
SPEED BELT-LOOP ATTACHING
MACHINE ............................................82
1. SPECIFICATIONS ............................................82
2. PREPARATION OF THE SEWING MACHINE 82
2-1. Threading the machine ................................... 82
3. OPERATION OF THE SEWING MACHINE ..... 83
3-1. Selection and conrmation of the sewing
patterns ............................................................ 83
3-2. Combination of the work clamp foot and
the feed plate ................................................... 83
IV. EXPLANATION OF THE LK-1903BN,
COMPUTER-CONTROLLED HIGH-
SPEED LOCKSTITCH BUTTON
SEWING MACHINE .............................84
1. SPECIFICATIONS ............................................84
2. PREPARATION OF THE SEWING MACHINE 84
2-1. Installation of the sewing machine and
preparation of the operation .......................... 84
2-2. Needle and thread ........................................... 84
2-3. Various sewing modes .................................... 85
3. ADJUSTMENT OF THE SEWING MACHINE .86
3-1. Position of the button clamp jaw lever .......... 86
3-2. Adjusting the feed plate .................................. 87
3-3. Adjusting the button clamp jaw lever ............ 88
3-4. Adjusting the lifting amount of the button
clamp ................................................................ 88
3-5. Adjustment of the pressure of the work
clamp unit ........................................................ 89
3-6. Adjustment of the wiper spring ...................... 89
4. OTHERS ..........................................................90
4-1. Installing the save button bar (accessory
part) .................................................................. 90
4-2. Model classication according to the
button size ....................................................... 90
4-3. Attaching the shank button (optional) ........... 91
V. EXPLANATION OF THE LK-
1903BBN HIGH-SPEED COMPUT-
ER-CONTROLLED FLAT BUTTON
SEWING MACHINE (WITH THE
BIRD'S NEST PREVENTING AND
SHORTER-THREAD REMAINING
TYPE THREAD TRIMMER) .................95
1. SPECIFICATIONS ............................................95
2. PREPARATION OF THE SEWING MACHINE 95
2-1. Installation of the sewing machine and
preparation of the operation .......................... 95
2-2. Installing the regulator and solenoid valve
asm. .................................................................. 96
2-3. Connecting the air piping ............................... 96
2-4. Connecting the cords ...................................... 99
2-5. Installing the air hose.................................... 100
2-6. Installing the cloth chip bag ......................... 100
2-7. Fixing the nger guard .................................. 100
2-8. Needle and thread ......................................... 101
2-9. Various sewing modes .................................. 101
3. ADJUSTMENT OF THE SEWING MACHINE 102
3-1. Adjusting the knife for the shorter thread
remaining thread trimmer ............................. 102
3-2. Adjusting the suction pipe for the shorter-
thread remaining type thread trimmer ........ 103
3-3. Replacing the knife of the shorter-thread
remaining type thread trimmer .................... 104
3-4. Adjusting the work clamp rod (For
1903BBNS only) ............................................. 105
3-5. Replacing the non-slip sheet (For
1903BBNS only) ............................................. 105
4. MAINTENANCE .............................................106
4-1. Cleaning the inside of the hook cover......... 106
4-2. Cleaning the thread clamp............................ 106
VI. ...........................................................
EXPLANATION OF THE LK-
1900BBN COMPUTER-CON-
TROLLED, HIGH-SPEED BARTACK-
ING MACHINE (WITH THE BIRD'S
NEST PREVENTING AND SHORT-
ER-THREAD REMAINING TYPE
THREAD TRIMMER) ............................107
1. SPECIFICATIONS ..........................................107
2. PREPARATION OF THE SEWING
MACHINE ....................................................... 108
2-1. Table of the sewing patterns ........................ 108
3. ADJUSTMENT OF THE SEWING MACHINE 110
3-1. Replacing the bird's nest preventing knife . 110
VII. DRAWING OF THE TABLE ............. 111

JUKI LK-1900BN Series Specifications

General

Brand	JUKI
Model	LK-1900BN Series
Category	Sewing Machine
Language	English