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Brother International LK3-B434E MKII Instruction Manual - English - Page 30

Operating the emergency stop switch, BOBBIN.WIND

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5. OPERATION 5-4. Operating the emergency stop switch If the emergency stop switch is pressed while normal sewing or test sewing is being carried out, the sewing machine will immediately stop operating. Canceling an emergency stop 1. Turn the emergency stop switch q clockwise and q then pull it out to release the lock. 2. Press the RESET switch w on the control panel. * The electronic alarm will stop sounding. 3. If not joining a new thread, press the RESET switch w once more so that the display panel flashes. Turn the pulley by hand to set the needle to the needle up stop position, and then continue with sewing. w RESET e BOBBIN.WIND r TEST Continuing sewing from a stopping point If the emergency stop switch was pressed because a thread breakage occurred or the lower thread ran out, sewing can be resumed from the point where the thread ended. 1. Turn the emergency stop switch q clockwise and then pull it out to release the lock. 2. Press the RESET switch w on the control panel. * The electronic alarm will stop sounding. 3. Press the BOBBIN. WIND switch e to trim the thread. 4. Press the BOBBIN. WIND switch e once more. * The work clamp will move backward one stitch at a time while this switch is being pressed. If the work clamp moves back too far, press the TEST switch r to move the work clamp forward. Press the TEST switch r once more when you would like the work clamp to stop. 5. Once the work clamp has returned to the desired position, depress the foot switch. The sewing machine will then resume sewing. LK3-B434E Mark II 24

Section	Page
Go to Instruction Manual Top Page	1
SAFETY INSTRUCTIONS	2
CONTENTS	6
1. NAME OF EACH PART	7
2. SPECIFICATIONS	8
2-1. Specifications	8
2-2. Examples of sewing patterns	9
3. INSTALLATION	10
3-1. Power table	10
3-2. Installing the motor	11
3-3. Installing the motor pulley	11
3-4. Installing the control box	12
3-5. Installing the rubber cushions	13
3-6. Installing the oil pan	13
3-7. Installing the cushions	13
3-8. Installing the machine head	14
3-9. Installing the head rest	14
3-10. Installing the liquid cooling tank, optional	14
3-11. Installing the operation panel	15
3-12. Connecting the ground wire	15
3-13. Connecting the cords	16
3-14. Piping (for pneumatic)	18
3-14-1. Installing the air unit	19
3-14-2. Adjusting the speed controller	19
3-15. Installing the V-belt	20
3-16. Installing the belt cover	21
3-17. Installing the foot switch	21
3-18. Installing the motor cover	22
3-19. Installing the spool stand	22
3-20. Installing the needle sub plate	23
3-21. Installing the eye guard	24
4. LUBRICATION	25
4-1. Lubrication points	25
5. OPERATION	26
5-1. Name and function of each operation panel item	26
5-2. Operating procedure	28
5-2-1. Setting the program number	28
5-2-2. Setting the X-scale and Y-scale	28
5-2-3. Setting the sewing speed	28
5-3. Operating the foot switch	29
5-4. Operating the emergency stop switch	30
6. CHECKING THE SEWING PATTERN	31
7. CORRECT USE	32
7-1. Selecting the needle and thread	32
7-2. Installing the needle	32
7-3. Threading the upper thread	32
7-4. Winding the lower thread	33
7-5. Replacing the bobbin case and threading the thread	34
7-6. Sewing conditions and thread tension	34
7-6-1. Guide to maximum sewing speed	35
7-6-2. Lower thread tension	35
7-6-3. Upper thread tension	35
7-6-4. Thread take-up spring height	36
7-6-5. Thread take-up spring tension	36
7-6-6. Adjusting arm thread guide R	36
7-6-7. Thread take-up amount	36
8. SEWING	37
9. MAINTENANCE AND INSPECTION	38
9-1. Cleaning the rotary hook	38
9-2. Lubrication	39
9-3. Draining the oil	40
9-4. Cleaning the control box air inlet port	40
9-5. Cleaning the eye guard	40
9-6. Checking the needle	40
10. STANDARD ADJUSTMENTS	41
10-1. Adjusting the needle bar height	41
10-2. Adjusting the needle bar lift amount	41
10-3. Adjusting the driver needle guard	42
10-4. Adjusting the needle clearance	42
10-5. Adjusting the shuttle race thread guide	42
10-6. Adjusting the thread take-up amount	43
10-7. Adjusting the movable knife	43
10-7-1. Replacing the movable knife and fixed knife	44
10-7-2. Adjusting the engagement of the movable knife and fixed knife	45
10-8. Adjusting the work clamp lift amount	46
10-9. Work clamp interchangeability	47
10-10. Adjusting the needle up stop position	47
10-11. Adjusting the thread wiper	48
10-12. Checking the input sensor and DIP switch input	49
10-13. Checking the input voltage	50
10-14. Clearing all memory settings	50
10-15. Moving stitch patterns	51
10-16. Adjustment of air pressure (for pneumatic)	52
10-17. Adjustment of inner clamping device	52
11. USING THE COUNTERS	53
11-1. Using the bobbin thread counter	53
11-2. Using the production counter	53
12. CHANGING FUNCTIONS USING THE DIP SWITCHES	54
12-1. Operation panel DIP switches	54
12-2. DIP switches inside the control box	55
12-3. Using user programs	56
13. CHANGING SPECIAL FUNCTIONS USING THE MEMORY SWITCHES	58
13-1. Using the cycle sewing function	61
14. SETTING THE WORK CLAMP MODE	63
14-1. Setting solenoid work clamp mode	63
14-2. Setting pneumatic work clamp mode	63
14-3. Light work clamp	64
14-4. Setting reverse work clamp mode	65
15. TABLE OF ERROR CODES	66
16. GAUGE PARTS LIST ACCORDING TO SUBCLASSES	68
17. TROUBLESHOOTING	71
18. OPTIONAL PARTS	74