JUKI LBH-1790S - Page 3

ii
25. How to adjust the contrast ................................................................................................62
26. How to set the key lock .....................................................................................................62
27. Communication .................................................................................................................. 63
28. Production support function ............................................................................................66
VI. MAINTENANCE ....................................................................................... 72
1. Adjusting the needle-to-hook relation ...............................................................................72
2. Adjusting the needle thread trimmer .................................................................................73
3. Adjusting the presser bar pressure ...................................................................................74
4. Adjustment of the bobbin presser unit .............................................................................. 74
5. Thread tension .....................................................................................................................75
6. Replacing the fuse ...............................................................................................................76
7. Disposal of batteries ............................................................................................................77
VII. GAUGE COMPONENTS ........................................................................ 78
1. Cloth cutting knife ...............................................................................................................78
2. Throat plate ..........................................................................................................................78
3. Presser ..................................................................................................................................78
VIII. ERROR CODE LIST .............................................................................. 79
IX. TROUBLES AND CORRECTIVE MEASURES ....................................... 85
X. DRAWING OF THE TABLE ...................................................................... 87
XI. INITIAL VALUE DATA FOR EACH SHAPE TABLE ............................... 89