Juki LH-4128-7 Manual

Juki Symaskine LH-4128-7

Læs nedenfor 📖 manual på dansk for Juki LH-4128-7 (48 sider) i kategorien Symaskine. Denne guide var nyttig for 13 personer og blev bedømt med 4.8 stjerner i gennemsnit af 7 brugere

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Side 1/48

ENGLISH

LH-4128, 4128-7

LH-4168-7, 4188-7

INSTRUCTION MANUAL

CONTENTS

1. SPECIFICATIONS ........................................................................................................... 1

2. NAME OF EACH COMPONENT .................................................................................... 2

3. INSTALLATION ............................................................................................................... 3

3-1. Installing the bottom cover .................................................................................................................................. 3

3-2. Opening and closing of the control box (SC-910) ............................................................................................. 4

3-3. Adjusting the height of the knee lifter ................................................................................................................ 5

3-4. Installation of thread stand .................................................................................................................................. 5

3-5. Caution when installing the panel ...................................................................................................................... 5

3-6. Connecting the cord ............................................................................................................................................. 6

3-7. Managing the cord ................................................................................................................................................ 8

3-8. Adjusting the knee lifter detection seat (asm.) ................................................................................................ 10

4. PREPARATION OF THE SEWING MACHINE ............................................................. 11

4-1. Lubrication .......................................................................................................................................................... 11

4-2. Cleaning the lter ............................................................................................................................................... 12

4-3. Adjusting the amount of oil in the hook .......................................................................................................... 13

4-4. Attaching the needles ........................................................................................................................................ 13

4-5. How to take out the bobbin case ...................................................................................................................... 14

4-6. Inserting a bobbin in a bobbin case ................................................................................................................. 14

4-7. Threading the machine head ............................................................................................................................. 15

4-8. Thread tension .................................................................................................................................................... 16

4-9. Thread take-up spring ........................................................................................................................................ 16

4-10. Adjusting the stitch length .............................................................................................................................. 17

4-11. Winding the bobbin thread .............................................................................................................................. 18

4-12. Adjusting the needle stop position ................................................................................................................. 19

4-13. Pedal pressure and pedal stroke .................................................................................................................... 20

4-14. Adjustment of the pedal ................................................................................................................................... 20

5. OPARATION OF THE SEWING MACHINE .................................................................. 21

5-1. Pedal operation ................................................................................................................................................... 21

5-2. Hand lifter ............................................................................................................................................................ 22

5-3. Adjusting the pressure of the presser foot ...................................................................................................... 22

5-4. Thread tension release changeover when using the knee lifter .................................................................... 23

5-5. Separately driven needle changeover switch (for LH-4168-7 and 4188-7) .................................................... 24

5-6. One-touch reverse feed switch lever (for touch-back) ................................................................................... 25

6. MAINTENANCE ............................................................................................................ 25

6-1. Changing procedure to bottom feed and the adjustment (LH-4128 without thread trimmer only)............. 25

6-2. Changing procedure to needle feed (for LH-4128 only) ................................................................................. 27

6-3. Adjusting the inner hook guide ......................................................................................................................... 28

6-4. Needle-to-hook relation ..................................................................................................................................... 29

6-5. Adjusting the height and the inclination of the feed dog ............................................................................... 32

6-6. Adjusting the presser foot ................................................................................................................................. 32

6-7. Move (adjustment) of the hook shaft saddle when replacing the gauge ...................................................... 33

6-8. Adjusting the thread presser spring ................................................................................................................. 33

6-9. Adjusting the position of the moving knife ...................................................................................................... 34

6-10. Replacing the bobbin thread slack preventer spring (for LH-4168-7 and 4188-7) ...................................... 35

6-11. Adjusting the hook needle guard .................................................................................................................... 35

6-12. Stop of the needle bars and angle of corners for corners stitching (for LH-4168-7 and 4188-7) ............... 36

6-13. Caution when installing the gauge to the bed slide ...................................................................................... 36

6-14. Position of the wiper ........................................................................................................................................ 37

6-15. Replenishing grease to the specied places (for LH-4168-7 and 4188-7)

................................................... 37

6-16. Cleaning the inside of the needle bar bushing .............................................................................................. 39

STITCH-TO-ANGLE TABLE BY GAUGE (PITCH AND mm CONVERSION TABLE)

... 40