Brother LK3-B430E MARK II - PROGRAM LIST; STANDARD THREAD TENSION; MECHANICAL DESCRIPTIONS; 3-1. Needle bar, thread take-up, lower shaft and shuttle race mechanisms

LK3-B430E Mark II
1. PROGRAM LIST ............................................ 1
2. STANDARD THREAD TENSION.............. 4
3. MECHANICAL DESCRIPTIONS............... 5
3-1. Needle bar, thread take-up, lower shaft and
shuttle race mechanisms ................................ 5
3-2. Work clamp lifter mechanism.......................... 6
3-3. Work clamp lifter and thread wiper
mechanisms .................................................... 6
3-4. Feed mechanism ............................................ 7
3-5. Thread trimmer mechanism ............................ 8
3-6. Thread nipper mechanism ..............................9
3-6-1. Manual operation ......................................... 9
3-6-2. In thread trimming........................................ 9
3-7. Thread take-up mechanism .......................... 10
4. DISASSEMBLY ............................................ 11
4-1. Covers .......................................................... 11
4-2. Presser arm mechanism ............................... 12
4-3. Shuttle hook mechanism .............................. 12
4-4. Needle bar mechanism ................................. 13
4-5. Upper shaft mechanism ................................ 14
4-6. Lower shaft mechanism ................................ 15
4-7. Feed mechanism .......................................... 16
4-8. Presser mechanism ...................................... 19
4-9. Thread wiper mechanism ............................. 20
4-10. Thread nipper mechanism .......................... 21
4-11. Thread take-up mechanism ........................ 22
4-12. Thread trimmer mechanism ........................ 23
5. ASSEMBLY ................................................... 24
5-1. Thread trimmer mechanism (1) .................... 24
5-2. Thread nipper mechanism ............................25
5-3. Thread wiper mechanism (1) ........................26
5-4. Thread take-up mechanism .......................... 27
5-5. Presser mechanism ...................................... 28
5-6. Feed mechanism .......................................... 30
Contents
5-7. Upper shaft mechanism ................................ 33
5-8. Needle bar mechanism ................................. 34
5-9. Lower shaft mechanism ................................ 35
5-10. Thread trimmer mechanism (2)................... 36
5-11. Thread wiper mechanism (2) ...................... 37
5-12. Shuttle race mechanism ............................. 38
5-13. Presser arm mechanism ............................. 39
5-14. Covers ........................................................ 40
6. ADJUSTMENT.............................................. 41
6-1. Adjusting the needle bar height .................... 41
6-2. Adjusting the needle bar lift stroke................ 41
6-3. Adjusting the driver needle guard ................. 42
6-4. Adjusting the needle clearance..................... 42
6-5. Adjusting the shuttle race thread guide ........ 42
6-6. Adjusting the work clamp lift amount ............ 43
6-7. Adjusting the thread wiper ............................ 43
6-8. Adjusting the thread take-up amount ............ 44
6-9. Adjusting the movable knife .......................... 44
6-9-1. Replacing the movable and fixed knives ... 45
6-9-2. Adjusting the engagement of the movable
knife and fixed knife .................................. 45
6-10. Adjusting the driving lever stopper position.... 46
6-11. Adjusting the thread trimmer driving lever
position........................................................ 46
6-12. Adjusting the thread trimming solenoid
position........................................................ 47
6-13. Adjusting the backlash ................................ 47
6-14. Adjusting the positions of the presser solenoid .. 48
6-15. Adjusting the sensor perceive plate position .. 48
6-16. Adjusting the home position........................ 49
6-17. Adjusting the needle up stop position ......... 49
6-18. Adjusting the V belt tension ........................ 50
7. GAUGE PARTS LIST ACCORDING
TO SUBCLASSES....................................... 51
8. OPTIONAL PARTS ..................................... 56