Brother 434C Sewing Machine User Manual


 
KE-430B, 430C series
CONTENTS
1. SPECIFICATIONS ............................... 1
1-1. SPECIFICATIONS........................................... 1
1-2. Standard thread tension................................... 5
2. MECHANICAL DESCRIPTIONS ......... 7
2-1. Needle bar and thread take-up
mechanisms..................................................... 7
2-2. Lower shaft and shuttle race mechanisms....... 9
2-3. Work clamp lifter mechanism ........................... 10
2-4. Work clamp open-close mechanism
(KE-432B, 432C).............................................. 12
2-5. Thread wiper mechanism................................. 13
2-6. Feed mechanism ............................................. 15
2-7. Thread trimmer mechanism ............................. 17
2-8. Thread nipper mechanism ............................... 19
2-9. Thread take-up mechanism ............................. 21
3. DISASSEMBLY ................................... 22
3-1. Covers.............................................................. 22
3-2. Work clamp arm mechanism
(KE-430B, 430C, 431B, 431C)......................... 24
3-3. Work clamp arm mechanism
(KE-432B, 432C).............................................. 25
3-4. Work clamp arm mechanism (KE-433B).......... 26
3-5.
Work clamp arm mechanism (KE-434B, 434C,
435B, 435C, 436B, 436C, 484C)
........................... 27
3-6.
Work clamp arm
(BE-438B, 438C) ..................... 29
3-7. Shuttle hook mechanism.................................. 30
3-8. Needle bar mechanism .................................... 31
3-9. Stepping foot mechanism
(KE-435B, 435C, 436B, 436C)......................... 32
3-10. Upper shaft mechanism.................................... 33
3-11. Lower shaft mechanism.................................... 35
3-12. Feed mechanism (1)......................................... 37
3-13. Feed mechanism (2)......................................... 39
3-14. Work clamp lifter mechanism
(Solenoid specifications) .................................. 41
3-15. Stepping foot lifter mechanism
(KE-435B, 435C, 436B, 436C)......................... 43
3-16. Thread wiper mechanism.................................. 44
3-17. Thread nipper mechanism ................................ 47
3-18. Thread take-up mechanism .............................. 49
3-19. Thread trimmer mechanism.............................. 51
4. ASSEMBLY......................................... 54
4-1. Thread trimmer mechanism (1) ........................ 54
4-2. Thread nipper mechanism................................ 56
4-3. Thread wiper mechanism ................................. 59
4-4. Thread take-up mechanism.............................. 62
4-5. Work clamp lifter mechanism
(Solenoid specifications)................................... 65
4-6. Feed mechanism (1)......................................... 70
4-7. Feed mechanism (2)......................................... 74
4-8. Upper shaft mechanism.................................... 76
4-9. Stepping foot lifter mechanism
(KE-435B, 435C, 436B, 436C) ......................... 79
4-10. Stepping foot mechanism
(KE-435B, 435C, 436B, 436C) ......................... 80
4-11. Needle bar mechanism..................................... 82
4-12. Lower shaft mechanism.................................... 83
4-13. Thread trimmer mechanism (2) ........................ 86
4-14. Shuttle hook mechanism.................................. 87
4-15. Work clamp arm mechanism
(KE-430B, 430C, 431B, 431C) ......................... 89
4-16. Work clamp arm mechanism
(KE-432B, 432C).............................................. 90
4-17. Work clamp arm mechanism (KE-433B)........... 91
4-18. Work
clamp arm mechanism (KE-434B, 434C,
435B, 435C, 436B, 436C, 484C)
........................... 92
4-19. Work clamp arm mechanism
(BE-438B, 438C).............................................. 94
4-20. Work clamp arm mechanism
(Applying grease) ............................................. 95
4-21. Covers.............................................................. 97