CONTENTS
1. SPECIFICATIONS ................................. 1
1-1. Specifications .......................................................... 1
1-2. Standard sewing pattern list .................................... 2
2. NOTES ON HANDLING ......................... 3
3. FUNCTION SETTINGS .......................... 4
3-1. List of special functions when power is turned
on ........................................................................... 4
3-2. List of advanced functions ..................................... 6
3-3. Setting memory switches (Advanced) .................... 7
3-4. List of memory switches ......................................... 8
3-5. Pedal operation mode setting method ................. 14
3-6. Checking the error history .................................... 16
3-7. Input checking method ......................................... 17
3-8. Output checking method ...................................... 20
3-9. Confirming software version................................. 22
3-10. Protection settings ............................................. 23
4. USING SD CARDS .............................. 26
4-1. Notes on handling SD cards
(commercially available) ...................................... 26
4-2. Structure of an SD card folder.............................. 26
4-3. Preparation for reading and writing data .............. 27
4-4. Reading program data (parameters) .................... 28
4-5. Writing program data (parameters) to an SD
memory card ........................................................ 29
4-6. Reading memory switch data ............................... 30
4-7. Writing memory switch data to the SD card ......... 31
4-8. Reading sewing machine data ............................. 32
4-9. Writing sewing machine data to an SD card ........ 33
4-10. Writing error log data to an SD card .................. 34
4-11. Updating the control program version ................ 35
5. MECHANICAL DESCRIPTIONS ......... 36
5-1. Needle bar and thread take-up mechanisms ....... 36
5-2. Upper shaft, lower shaft and rotary hook
mechanisms ......................................................... 37
5-3. Needle zigzag mechanism ................................... 38
5-4. Presser foot lifter mechanism............................... 39
5-5. Feed mechanism ................................................. 40
5-6. Cutter mechanism ................................................ 40
5-7. Thread breakage detection mechanism ............... 41
5-8. Tension release mechanism ................................ 42
5-9. Upper thread trimmer mechanism ........................ 43
5-9-1. Upper thread scissors Gradually opens ...... 45
5-9-2. Upper thread scissors Open ....................... 46
5-10. Lower thread trimmer mechanism ...................... 47
5-10-1. Lower thread clamp open at the sewing start
Open ················································ 48
6. ASSEMBLY .......................................... 49
6-1. Lower shaft and idle pulley mechanisms ............. 50
6-2. Lower thread trimmer mechanism ....................... 52
6-3. Feed mechanism ................................................. 54
6-4. Threading mechanism ......................................... 57
6-5. Presser lifter mechanism ..................................... 59
6-6. Needle zigzag mechanism ................................... 62
6-7. Cutter mechanism ............................................... 64
6-8. Upper shaft and tension pulley mechanisms ....... 67
6-9. Lubrication mechanism ........................................ 69
6-10. Needle bar and thread take-up mechanisms ..... 75
6-11. Presser bar mechanism .................................... 77
6-12. Upper thread trimmer mechanism ..................... 79
6-13. Thread breakage detector mechanism .............. 80
6-14. Rotary hook mechanism .................................... 81
6-15. Covers ............................................................... 82
7. ADJUSTMENT ...................................... 83
7-1. Notes on making adjustments ............................. 83
7-2. Adjusting the home position ................................. 84
7-2-1. Switching to home position adjustment
mode............................................................. 84
7-2-2. Needle zigzag (X) motor home position ........ 85
7-2-3. Feed (Y) motor home position ....................... 86
7-2-4. Work clamp (P) motor home position ............ 87
7-3. Adjusting the needle bar height ........................... 88
7-4. Adjusting the needle and hook timing .................. 89
7-4-1. Adjusting the clearance between needle
and hook tip .................................................. 91
7-5. Adjusting the inner rotary hook and rotary hook
holder overlap ...................................................... 91
7-6. Adjusting the work clamp pressure ...................... 91
7-7. Adjusting the work clamp lift amount ................... 92
7-8. Adjusting the work clamp lateral position ............. 93
7-9. Adjusting the cutter home position sensor
position ................................................................ 93
7-10. Adjusting the cutter installation position............. 94
7-10-1. When using the special needle plate
(needle plate -RB) ..................................... 95
7-11. Adjusting the cutter installation height ............... 95
7-12. Adjusting the upper thread trimming .................. 96
7-12-1. Adjusting the longitudinal feed arm
assembly position ....................................... 97
7-12-2. Adjusting the trimmer driving arm
assembly position ....................................... 97
7-12-3. Adjusting the lateral position of the upper
thread scissors at the sewing start .............. 98
7-12-4. Adjusting the longitudinal position of the
upper thread scissors.................................. 98
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