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LH4-B800E
CONTENTS
1. MECHANISM DESCRIPTION ..........................................
1-1
1-1.
Needle take-up mechanism ............................................... 1-1
1-2.
Upper shaft, lower shaft and rotary hook mechanism ....... 1-2
1-3.
Needle zigzag mechanism ................................................. 1-3
1-4.
Presser foot lifter mechanism ............................................ 1-4
1-5.
Feed mechanism ............................................................... 1-5
1-6.
Cutter mechanism .............................................................. 1-6
1-7.
Thread breakage detection mechanism ............................ 1-7
1-8.
Lubrication mechanism ...................................................... 1-8
1-9.
Tension release mechanism ............................................ 1-10
1-10. Upper thread trimmer mechanism ................................... 1-12
1-11. Lower thread trimmer mechanism ................................... 1-16
2. DISASSEMBLY ................................................................
2-1
2-1.
Lower shaft and idle pulley mechanism ............................. 2-1
2-2.
Lower thread trimmer assembly ........................................ 2-2
2-3.
Feed mechanism ............................................................... 2-4
2-4.
Bobbin presser mechanism ............................................... 2-7
2-5.
Tension release mechanism .............................................. 2-8
2-6.
Presser lifter mechanism ................................................. 2-10
2-7.
Needle zigzag mechanism ............................................... 2-13
2-8.
Cutter mechanism ............................................................ 2-14
2-9.
Upper shaft and tension pulley mechanism ..................... 2-16
2-10. Needle bar and thread take-up mechanism ..................... 2-17
2-11. Presser bar mechanism ................................................... 2-19
2-12. Upper thread trimmer mechanism ................................... 2-20
2-13. Thread breakage detection mechanism .......................... 2-22
2-14. Lubrication mechanism .................................................... 2-23
2-15. Rotary hook mechanism .................................................. 2-29
3. ASSEMBLY ......................................................................
3-1
3-1.
Lower shaft and idle pulley mechanism ............................. 3-1
3-2.
Lower thread trimmer mechanism ..................................... 3-2
3-3.
Feed mechanism ............................................................... 3-4
3-4.
Bobbin presser mechanism ............................................... 3-7
3-5.
Tension release mechanism .............................................. 3-8
3-6.
Presser lifter mechanism ................................................. 3-10
3-7.
Needle zigzag mechanism ............................................... 3-13
3-8.
Cutter mechanism ............................................................ 3-14
3-9.
Upper shaft and tension pulley mechanism ..................... 3-17
3-10. Needle bar and thread take-up mechanism ..................... 3-18
3-11. Presser bar mechanism ................................................... 3-20
3-12. Upper thread trimmer mechanism ................................... 3-21
3-13. Thread breakage detection mechanism .......................... 3-23
3-14. Lubrication mechanism .................................................... 3-24
3-15. Rotary hook mechanism .................................................. 3-31
Содержание LH4-B800E
Страница 55: ...LH4 B800E 2 30 2 DISASSEMBLY ...
Страница 87: ...LH4 B800E 3 32 3 ASSEMBLY ...