Juki LK-1900AN Manual de Usario

Juki máquina de coser LK-1900AN

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ENGLISH

LK-1900AN

LK-1901AN LK-1902AN

LK-1903AN LK-1903AN-305

INSTRUCTION MANUAL

CONTENTS

Ⅰ. EXPLANATION OF LK-1900AN, COMPUTER-CONTROLLED HIGH-SPEED

BARTACKING MACHINE 1 ..............................................................................................

[1] SPECIFICATIONS 1 .....................................................................................................................................

[2] CONFIGURATION 2 .....................................................................................................................................

1. Names of main unit 2 ................................................................................................................................................

2. Names and explanation of switches on the operation panel 3 ............................................................................

[3] INSTALLATION 4 .........................................................................................................................................

1. Installing the electrical box...................................................................................................................................4

2. Attaching the connecting rod 4 ...............................................................................................................................

3. Installing the head support rod 4 ............................................................................................................................

4. Installing and connecting the power switch 5 .......................................................................................................

5. How to carry the sewing machine 6 ........................................................................................................................

6. Installation of the sewing machine head 6 .............................................................................................................

7. Installing the drain receiver and the head support rubber 7 ................................................................................

8. Safety switch 7 ..........................................................................................................................................................

9. Tilting the sewing machine head 8 .........................................................................................................................

10. Installing the operation panel 8 ...............................................................................................................................

11. Connecting the cord 9 ..............................................................................................................................................

12. Managing the cord 10 ...............................................................................................................................................

13. Installing the eye protection cover .................................................................................................................... 11

14. Installing the thread stand .................................................................................................................................. 11

[4] OPERATION OF THE SEWING MACHINE 12 ............................................................................................

1. Lubrication ...........................................................................................................................................................12

2. Attaching the needle 12 ...........................................................................................................................................

3. Threading the machine head 13 ..............................................................................................................................

4. Installing and removing the bobbin case 13 ..........................................................................................................

5. Installing the bobbin 14 ............................................................................................................................................

6. Adjusting the thread tension 14 ..............................................................................................................................

7. Adjusting the thread take-up spring 15 ..................................................................................................................

8. Example of the thread tension 15 ...........................................................................................................................

[5] OPERATION OF THE SEWING MACHINE (BASIC) 16 ..............................................................................

1. Item data setting 16 ..................................................................................................................................................

2. Checking the contour of a sewing pattern 18 ........................................................................................................

3. Sewing ..................................................................................................................................................................19

4. Change to the other sewing pattern 19 ..................................................................................................................

5. Winding a bobbin 20 .................................................................................................................................................

6. Thread clamp device 21 ...........................................................................................................................................

[6] OPERATION OF THE SEWING MACHINE (ADVANCED) 23 .....................................................................

1. Performing sewing using the pattern keys ( , , , and ) 23 ........................................

2. Performing sewing using the combination function 26 ........................................................................................

3. Performing sewing using the “bobbin thread counter” 28 ...................................................................................

4. How to use the temporary stop 28 ..........................................................................................................................

5. Setting the pattern thread tension 29 .....................................................................................................................

6. Cautions in operation 30 ..........................................................................................................................................

[7] MAINTENANCE 30 ......................................................................................................................................

1. Adjusting the height of the needle bar 30 ..............................................................................................................

2. Adjusting the needle-to-shuttle relation 31 ............................................................................................................

3. Adjusting the lift of the work clamp foot 32 ...........................................................................................................

4. The moving knife and counter knife 32 ..................................................................................................................

5. Needle thread clamp device 33 ...............................................................................................................................

6. Adjustment of the wiper 33 ......................................................................................................................................

7. Draining waste oil 34 ................................................................................................................................................

8. Amount of oil supplied to the hook 34 ...................................................................................................................

9. Replacing the fuse 34 ...............................................................................................................................................

10. Changing the voltage of 100/200V 35 .....................................................................................................................

11. Replenishing the designated places with grease 36 .............................................................................................

[8] HOW TO USE THE MEMORY SWITCH ..................................................................................................37

1. Start and change of the memory switch 37 ............................................................................................................

2. Example of the memory switch setting 37 .............................................................................................................

3. Table of functions of the memory switch 41 ..........................................................................................................

[9] OTHERS 44 ..................................................................................................................................................

1. Setting the DIP switch 44 .........................................................................................................................................

2. Tableofthestandardpatternspecications ....................................................................................................45

3. Table of the standard patterns 46 ...........................................................................................................................

4. Table of the work clamp foot 48 ..............................................................................................................................

5. LK-1900 data ROM 50 ...............................................................................................................................................

6. Connection of the optional pedal 50 .......................................................................................................................

7. Error list 51 ................................................................................................................................................................

8. Troubles and corrective measures (sewing conditions)..................................................................................54

9. Table of the optional parts 56 ..................................................................................................................................

Ⅱ. EXPLANATION OF THE LK-1901AN, COMPUTER-CONTROLLED HIGH-SPEED

EYELET BUTTONHOLE BARTACKING MACHINE 58 ...................................................

1. Specications ......................................................................................................................................................58

2. Installation of the sewing machine and preparation of the operation 58 ............................................................

3. Adjustment of the material closing amount 59 ......................................................................................................

4. Adjustment of the lift of the work clamp foot 59 ...................................................................................................

5. Adjustment of the pressure of the work clamp unit 60 .........................................................................................

6. Setting of the material closing operation 60 ..........................................................................................................

7. Selectionandconrmationofthesewingpatterns .........................................................................................61

Ⅲ. EXPLANATION OF THE LK-1902AN, COMPUTER-CONTROLLED HIGH-SPEED

BELT-LOOP ATTACHING MACHINE ..........................................................................62

1. Specications ......................................................................................................................................................62

Installation of the sewing machine and preparation of the operation 62 .....................................................................

3. Threading the machine 62 .......................................................................................................................................

4. Selectionandconrmationofthesewingpatterns .........................................................................................63

5. Combination of the work clamp foot and the feed plate 63 ..................................................................................

Ⅳ. EXPLANATION OF THE LK-1903AN, COMPUTER-CONTROLLED HIGH-SPEED

LOCKSTITCH BUTTON SEWING MACHINE 64 .............................................................

1. Specications ......................................................................................................................................................64

2. Installation of the sewing machine and preparation of the operation 64 ............................................................

3. Needle and thread 64 ................................................................................................................................................

4. Various sewing modes 65 ........................................................................................................................................

5. Position of the button clamp jaw lever 66 ..............................................................................................................

6. Adjusting the feed plate 67 ......................................................................................................................................

7. Adjusting the button clamp jaw lever 67 ................................................................................................................

8. Adjusting the lifting amount of the button clamp 68 .............................................................................................

9. Adjustment of the pressure of the work clamp unit 68 .........................................................................................

10. Adjustment of the wiper spring 69 ..........................................................................................................................

11. Installing the save button bar (accessory part) 69 ................................................................................................

12. Modelclassicationaccordingtothebuttonsize ............................................................................................70

13. Attaching the shank botton (optional) 71 ...............................................................................................................

Ⅴ. DRAWING OF THE TABLE .........................................................................................75