JUKI LBH-1790A Series Instruction Manual page 3

24. How to adjust the contrast ................................................................................................57
25. How to set the key lock .....................................................................................................57
26. Communication ..................................................................................................................58
VI. MAINTENANCE ....................................................................................... 61
1. Adjusting the needle-to-hook relation ...............................................................................61
2. Adjusting the needle thread trimmer .................................................................................62
3. Adjusting the presser bar pressure ...................................................................................63
4. Adjustment of the bobbin presser unit ..............................................................................63
5. Thread tension .....................................................................................................................64
6. Replacing the fuse ...............................................................................................................65
VII. GAUGE COMPONENTS ........................................................................ 66
1. Cloth cutting knife ...............................................................................................................66
2. Throat plate ..........................................................................................................................66
3. Presser ..................................................................................................................................66
VIII. ERROR CODE LIST .............................................................................. 67
IX. TROUBLES AND CORRECTIVE MEASURES ....................................... 72
X. DRAWING OF THE TABLE ...................................................................... 74
XI. INITIAL VALUE DATA FOR EACH SHAPE TABLE ............................... 76
viii