Brother KM-430B 业主指南

TN-840B, 870B
TL-840B

.................................  1

.................................  3

..................................................  8

................................ 11

........................................................ 13

5-1. Installing the oil pan ........................................... 14

5-2. Installing the machine head ............................... 15

5-3. Installing the knee lifter assembly ..................... 16

5-4. Installing the belt ................................................. 18

5-5. Installing the bobbin winder .............................. 18

5-6. Installing the belt cover ...................................... 19

5-7. Installing the cotton stand .................................. 21

5-8. Ground Wire Connections .................................. 21

5-9. Installing the electromagnetic presser bar liter

assembly (–900, option) ...................................... 22

 5-10. Installing the air equipment (–700) .................. 26

 5-11. Installing the knee switch

(–700, –900, option) ........................................... 28

 5-12. Selecting the presser bar lifter function

(–700, –900, option) ........................................... 29

 5-13. Connection of Wires

(–700, –900, Option parts) ................................. 30

 5-14. When not using the knee switch

(–900, option) ..................................................... 31

 5-15. Lubrication .......................................................... 33
 5-16. Checking the machine pulley rotating

direction .............................................................. 35

...................... 36

6-1. Installing the needle ............................................ 36

6-2. Removing the bobbin or cap ............................. 37

6-3. Winding the lower thread ................................... 38

6-4. Installing the bobbin or cap ............................... 40

6-4-1. Installing the bobbin

[842B, 847B, 872B] ....................................... 41

6-4-2. Installing the cap [845B, 848B, 875B] ........ 42

6-5. Threading the upper thread ............................... 43

6-6. Adjusting the stitch length ................................. 45

6-7. Thread Wiper ....................................................... 46

 6-8. Corner sewing method [845B, 848B, 875B] ...... 47

6-8-1. To stop the needle bars (right and left) .... 47

6-8-2. Number of stitches: quick-reference

guide ............................................................. 48

..................................................................... 49

7-1. Sewing .................................................................. 50

7-2. Backtacking ........................................................... 50

.................................................. 51

8-1. Adjusting the thread tension .............................. 51

8-2. Adjusting the presser foot pressure .................. 52

8-3. Adjusting the trailing length after thread

trimming ............................................................... 52

................. 55

................................................................ 59

............................... 62

11-1. Adjusting of the feed dog height ...................... 63

11-2. Adjusting the presser foot height ...................... 64

11-3. Adjusting the thread tension spring .................. 65

11-4. Adjusting the needle and rotary hook timing .. 67

11-4-1. Needle to rotary hook point gap ............... 67

11-4-2. Clearances between rotary hooks

and needle plate .......................................... 68

11-4-3. Clearance between rotary hook and

opener ........................................................... 69

11-4-4. Needle bar height and lift amount ............ 70

11-5. Thread Wiper Adjustment .................................. 75

11-6. Movable and Fixed Knife Adjustment ............... 78

11-7. Tension Release ................................................... 81

11-8. Synchronizer Adjustment ................................... 83

11-9. Upper and Lower Shaft Timing Adjustment .... 85

11-10. Adjusting the rotary hook lubrication

amount ............................................................... 87

..................................................... 89

......................... 96

13-1. Replacing the rotary hook .................................. 97

13-2. Replacing the upper thread tension

assembly ............................................................ 101

.............................. 102