Brother LH4-B800E Service Manual download pdf (Page 6)

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

1 2 3 4 5 6 7 8 9 10 11 ... 167 168

Comments to this Manuals

No comments

Brother LH4-B800E Service Manual Page 6

Comments to this Manuals

Related products and manuals for Sewing machines Brother LH4-B800E