JUKI LU-2210N-7 Engineer's Manual page 4

6) Height of the Moving Knife (for the left-hand side hook) (for LU-2260N/W-7) ................................................ 46
7) Thread Trimmer Cam (for LU-2210N/W-7 and LU-2260N/W-7) ......................................................................... 48
8) Thread Trimmer Cam (for LU-2212N-7) .............................................................................................................. 50
(12) Thread Trimmer Device (LU-2220N-7) ................................................................................. 52
1) Positioning for the thread trimming cylinder joint ......................................................................................... 52
2) Counter knife (adjustment of movement) (positioning for the counter knife base stopper ....................... 54
3) Counter knife (adjustment of right and left positioning) ............................................................................... 56
4) Moving knife (adjustment of vertical positioning) .......................................................................................... 58
5) Counter knife (adjustment of vertical positioning) ......................................................................................... 58
6) Thread guide mounting position ...................................................................................................................... 60
7) Adjustment of knife presser ............................................................................................................................. 60
8) Moving knife driving arm and initial position of the moving knife ............................................................... 62
9) Adjustment of gap between the moving knife driving arm and the moving
knife driving arm stopper .................................................................................................................................. 64
10) Mounting position of the moving knife return plate ....................................................................................... 64
11) Adjustment of timing for the thread trimming cam ........................................................................................ 64
12) Clamp spring mounting position ..................................................................................................................... 66
13) Explanation of the solenoid valve .................................................................................................................... 68
(13) Opener .................................................................................................................................... 70
1) Timing of the Opener ........................................................................................................................................... 70
2) Clearance between the opener and the protruding section of the inner hook ............................................... 70
(14) Presser Lifting Unit ............................................................................................................... 72
1) Presser Lifting Amount ........................................................................................................................................ 72
2) Presser Lifting Cylinder ....................................................................................................................................... 72
(15) Safety Mechanism ................................................................................................................. 74
1) Releasing Torque Adjustment ............................................................................................................................. 74
2) How to reset the Safety Mechanism ................................................................................................................... 74
(16) Lubricating Unit ..................................................................................................................... 76
1) Oil Distribution Diagram ...................................................................................................................................... 76
2) Supplying and Replacing Oil ............................................................................................................................... 76
3) Filter Replacement Procedure ............................................................................................................................ 78
4) Adjusting the amount of oil in the hook and cleaning the hook filter ............................................................. 78
(17) Aperture Plate Removal Procedure (for LU-2212N-7) ........................................................ 80
1) Removal Procedure of Aperture Plate ............................................................................................................... 80
2) Attachment Procedure of Aperture Plate ........................................................................................................... 80
3) Adjustment of 2P Cylinder Connecting Link ..................................................................................................... 80
(18) Aperture Plate Removal Procedure (for LU-2220N-7) ........................................................ 82
1) Removal Procedure of Aperture Plate ............................................................................................................... 82
2) Attachment Procedure of Aperture Plate ........................................................................................................... 82
3) Adjustment of 2P Cylinder Connecting Link ..................................................................................................... 82
4. Various Switches ................................................................................................... 84
(1) Operation Switches ................................................................................................................. 84
(2) Knee Switch ............................................................................................................................. 84
5. Parts Replacement ................................................................................................ 86
(1) How to replace the Needle Clamp (LU-2260N/W-7) .............................................................. 86
(2) Replacement of the Presser Adjusting Spring ..................................................................... 88
(3) How to replace the Timing Belt .............................................................................................. 90
(4) How to change from 1-needle to 2-needle specifications (LU-2210N-7 → → → → → LU-2260N-7) ...... 96