Brother LK3-B448E- Manuals

Page 2 - indicates the nature of the thing that must be done.; SAFETY INSTRUCTIONS; The meanings of these indications and symbols are given below.; Safety indications and their meanings; Indications; DANGER; Symbols

i L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 ............. This symbol ( ) indicates something that you should be careful of. The picture inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means “beware of injury”.) ............. This symbol (...

Page 3 - ii; CAUTION; Lightning may cause problems with correct operation.; Environmental requirements

ii L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 Use the sewing machine in an area which is free fromsources of strong electrical noise such as high-frequency welders. Sources of strong electrical noise may causeproblems with correct operation. Any fluctuations in the power supply voltage shouldbe withi...

Page 4 - Sewing

iii L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 This sewing machine should only be used by opera-tors who have received the necessary training in safeuse beforehand. The sewing machine should not be used for anyapplications other than sewing. Be sure to wear protective goggles when using themachine.If...

Page 5 - iv; Warning labels; The following warning labels appear on the sewing machine.; Be sure to connect the ground.

iv L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 c Warning labels ★ The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother d...

Page 6 - CONTENTS; Checking the sewing pattern

CONTENTS 1. Name of each part ................................................................................................................. 1 2. Specifications .......................................................................................................................... 2 2-1. Specif...

Page 18 - NOTE: Pull the cords

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 11 3. Installation 3-7. Installing the machine head 1. Insert the two hinge assemblies q into the machine head so that they are parallel, and then secure themwith the two set screw w . 2. Place the machine head gently on the table. NOTE: Pull the cords e out...

Page 20 - ty

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 13 3. Installation 3-13. Installing the shooter 3-12. Installing the button feeder 1. Move button feeder base q to the front and rear and left and right as necessary to install it by using holebolts w , spring washers e and washers r . (And install ground wi...

Page 22 - Button feeder connection; Connect the ground wire from the vibrating bowl to the motor.

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 15 3. Installation ■ Button feeder connection Pull on the connector to make sure it will not come disconnected after connecting the pins. ■ Control box (for vibrating bowl) connection Connect the ground wire from the vibrating bowl to the motor. Button feeds...

Page 23 - Power switch connection; Attach the button feeder cover

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 3. Installation 16 ■ Power switch connection 3-15. Installing the button feeder cover Attach the button feeder cover q to the button feeder w with screws e , spring washers r , and washers t . * B e s u r e t o p a s s t h e w i r e s t h r o u g h t h e h o...

Page 28 - -24. Adjustment by the accessory spring

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 21 3. Installation 3-24. Adjustment by the accessory spring w e q t r If you would like the button to be raised up more after it issewn, install the accessory spring. 1. Install the spring support q with the bolt w . 2. Install the spring e with the washer r...

Page 29 - Keep the oil out of the reach of children.

22 4. Lubrication L K 3 - B 4 4 8 E M A R K 2 / B A - 1 6 Turn off the power switch before starting lubricating, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury.Be sure to wear protective goggles and gloves when handling the lubricating oil ...

Page 30 - Remove and empty the waste oil container

L K 3 - B 4 4 8 E M A R K 2 / B A - 1 6 23 4. Lubrication 4-2. Applying grease Do not apply too much grease in the place indicated bythe arrow. If too much grease is applied here, the buttonclamp may not move up and down smoothly and error [E-6 ] may appear on the display. 4-3. Draining the oil 1. R...

Page 31 - -1 . Name and function of each operation panel item; S E L E C T; POWER; is pressed to shown the program

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 24 5. Operation 5 . Operation 5-1 . Name and function of each operation panel item S E L E C T PROGRAM NO. R E S E T COUNTER X-SCALE Y-SCALE SPEED P T E S T BOBBIN.WIND P4 P3 P1 P2 POWER q w re t y u i o !0 !1 !4 q POWER indicator ................... Illumin...

Page 32 - is pressed to shown the speed setting.

25 L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 5. Operation S E L E C T PROGRAM NO. R E S E T COUNTER X-SCALE Y-SCALE SPEED P T E S T BOBBIN.WIND P4 P3 P1 P2 POWER y i o !0 !1 !4 !2 !3 i X-SCALE indicator ................. Illuminates when the SELECT switch y is pressed to shown the X-scale setting. o...

Page 33 - Factory default

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 26 5. Operation 5-2 . Operating procedure Program No. X-scale (%) Y-scale (%) Speed (rpm) Factory default 00 * 100 100 2000 Variable range 01 - 49 20 - 200 20 - 200 1,000 - 2,500 S E L E C T PROGRAM NO. COUNTER X-SCALE Y-SCALE SPEED P S E L E C T PROGRAM NO....

Page 35 - When checking by operating only the feed mechanism

28 L K 3 - B 4 4 8 E M A R K 2 / B A - 1 6 6. Checking the sewing pattern 7. Depress the foot switch to the second step. Only the feed mechanism will move. The feed mechanism moves forward by one stitch each time the foot switch is depressed. Each time the feed mechanism is moved forward by one stit...

Page 36 - switch is depressed by mistake and serious injury could result.

29 L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 7. Correct use 7. Correct use 7-1 . Selecting the needle and thread TQ × 1 #11 TQ × 1 #12 TQ × 1 #14 Thread #60 #50 Button hole diameter 1.5mm or greater 1.6mm or greater 1.7mm or greater Needle q w q w Approx. 40mm [When using the liquid cooling tank] Tu...

Page 37 - personal injury or damage to the machine may result.

30 L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 7. Correct use Do not touch or place anything against any of the moving parts while winding the lower thread, otherwise personal injury or damage to the machine may result. 8. To wind more thread onto the bobbin, loosen the setscrew t and pull the bob- bi...

Page 38 - -5. Replacing the bobbin case and threading the thread; Thread take-up spring height

31 L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 7. Correct use Turn off the power switch before removing and replacing the bobbin case, otherwise the machine may operate if the foot switch is depressed by mistake and serious injury could result. q 30mm CAUTION 7-5. Replacing the bobbin case and threadi...

Page 40 - Threading

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 8. Sewing 33 8. Sewing Before starting sewing... • Check that the needle bar is at its highest position. Turn the machine pulley so that the index mark q on the pulley is between the marks w on the belt cover. * If the stop position of the machine pulley is ...

Page 41 - Maintenance and inspection; -2. Cleaning the control box air inlet port

34 9. Maintenance and inspection L K 3 - B 4 4 8 E M A R K 2 / B A - 1 6 9. Maintenance and inspection CAUTION Turn off the power switch before starting any cleaning work, otherwise the machine may operate if thefoot switch is depressed by mistake, which could result in injury. 9-1. Cleaning the rot...

Page 42 - Wipe the eye guard clean with a soft cloth.

35 9. Maintenance and inspection L K 3 - B 4 4 8 E M A R K 2 / B A - 1 6 9-3. Cleaning the eye guard Wipe the eye guard clean with a soft cloth. NOTE: Do not use solvents such as kerosene or thinner to clean theeye guard. 9-4. Checking the needle Always check that the tip of the needle is not broken...

Page 43 - maintenance; Tileing back the machine head; When tilting back the machine head, loosen the screws

36 10. Adjustments L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 Maintenance and inspection of the sewingmachine should only be carried out by a quali-fied technician.Ask your Brother dealer or a qualified electricianto carry out any maintenance and inspection ofthe electrical system.Turn off the power ...

Page 44 - 0-2 . Adjusting the needle bar lift amount

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 37 10. Adjustments Adjust the needle bar lift amount as described below so that the tip of the rotary hook is aligned with the center of theneedle when the machine pulley is turned to raise the needle bar from its lowest position until the second referenceli...

Page 45 - 0-5 . Adjusting the shuttle race thread guide

38 10. Adjustments L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 0.01 - 0.08mm Tip Needle center line 10-3 . Adjusting the driver needle guard Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw w and turn the eccentric shaft e to adjust so ...

Page 48 - 0-8 . Adjusting the button clamp lift amount; and adjust the

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 41 10. Adjustments A. After the movable knife and fixed knife are properly engaged, tighten the screw as shown in Fig.1.B. Turn the movable knife (in the direction of the arrow) while the screw is still tightened.C. Loosen the screw.D. Turn the movable knife...

Page 49 - 0-10. Adjusting the position of the button holder

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10. Adjustment 42 10-9. Adjusting the holding pressure Loosen screw q and turn adjustment screw w so that clamp pressure is as light as possible but high enough sothat the material will not slip when pulled lightly.* If the clamp pressure is too high, the bu...

Page 51 - 0-12. Adjusting the needle up stop position

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10. Adjustment 44 2 ± 0.5mm q w e ( A p p r o x .3 0 m m ) A p p r o x .2 0 m m r t 10-12. Adjusting the needle up stop position The needle up stop position is adjusted so that the indexmark w on the machine pulley q is inside the mark r on the belt cover e ...

Page 52 - If buttons are not fed properly, check the following.

45 10. Adjustment L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10-14. Adjusting the vibrating bowl ● The vibrating bowl arranges all of the buttons face up and feeds the buttons to the shooter. ● Be sure to readjust the vibrating bowl whenever the buttons are changed. ■ If buttons are not fed properly,...

Page 53 - 0-15. Adjustment for excess buttons in the button shooter

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10. Adjustment 46 10-15. Adjustment for excess buttons in the button shooter 1. Turn the button carrier q by hand in the direction of the arrow, and remove any buttons from the buttoncarrier pin w . 2. With the button carrier q in this position, pull lever e...

Page 54 - Slide base adjustment

47 10. Adjustment L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10-16. Button replacement 10-16-1. Adjustment when the button diameter is changed ■ Slide base adjustment 1. Adjust the width of the slide base assembly w to the button width with slide base screw e so that the bottons q pass smoothly. The ...

Page 57 - Horizontal feed position; Needle; A B

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10. Adjustment 50 10-16-6. Adjusting the needle location Adjustment is required whenever the button carrier is replaced.Make sure the needle is not bent. ■ Horizontal feed position 1. Set the X scale so that the holes A and B in the button are aligned with t...

Page 59 - may stretch slightly when it is first used,

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 10. Adjustment 52 Fig.1 M o t o r V-belt S e w i n gmachine NOTE: Use brother specified V-belt (belt, VM).The V-belt may stretch slightly when it is first used, so adjust the belt tension after about 3,000 cycles ofuse.When above belt tension is weak, this w...

Page 60 - 0-18. Checking the input sensor and DIP switch input

53 10. Adjustment L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 S E L E C T PROGRAM NO. R E S E T COUNTER X-SCALE Y-SCALE SPEED P T E S T BOBBIN.WIND P4 P3 P1 P2 POWER 1. When the X-SCALE indicator q is illuminated and the RESET switch e is pressed while the TEST switch w is being pressed, the state of ...

Page 63 - Using the counters

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 11. Using the counters 56 11.Using the counters 11-1 . Using the bobbin thread counter r e y t q r e y q u w t w 1. Press the SELECT switch q until the COUNTER in- dicator w illuminates. 2. While pressing the TEST switch e , press the RESET switch r . * The ...

Page 64 - Using user programs; Recording a user program

57 12. Using user programs L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 S E L E C T PROGRAM NO. R E S E T COUNTER X-SCALE Y-SCALE SPEED P T E S T BOBBIN.WIND P4 P3 P1 P2 POWER 12.Using user programs Recording a user program 12. Press the TEST switch w . This completes the recording. * The menu indicato...

Page 66 - Using the cycle sewing function; Recording a cycle sewing program

59 13. Using the cycle sewing function L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 S E L E C T PROGRAM NO. R E S E T COUNTER X-SCALE Y-SCALE SPEED P T E S T BOBBIN.WIND P4 P3 P1 P2 POWER B430E Series t !0 !1 e w !2 r y u i q 13. Using the cycle sewing function What is the cycle sewing function? The cy...

Page 67 - When “c1-1” is flashing in the display; Using a cycle sewing program; Press the RESET switch

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 13. Using the cycle sewing function 60 1. When “c1-1” is flashing in the display window !0 , press the foot switch to the second step. 2. Start sewing. 3. “c1-1”, “c1-2”, “c1-3” are sewn in order for each article, and when the last-recorded pattern has been ...

Page 68 - Changing functions using the DIP switches

61 14. Changing functions using the DIP switches L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 q DIPA-1 DIPA-2 DIPA-3 DIPA-4 DIPA-5 DIPA-6 DIPA-7 DIPA-8 Motion when set to ON See “12-2. Setting the presser mode” Presser does not automatically lift after sewing is completed. Two-pedal mode is available. ...

Page 69 - 4-3 . DIP switches inside the control box

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 14. Changing functions using the DIP switches 62 Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present...

Page 70 - Changing special functions using the memory switches; Memory switches 00 - 0F

63 15. Changing special functions using the memory switches L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 memo-00 memo-01 memo-02 memo-03 memo-04 memo-05 memo-06 memo-07 memo-08 memo-09 memo-0A memo-0b memo-0c memo-0d memo-0E memo-0F Motion when set to ON At the end of sewing, the feed plate will be ret...

Page 72 - present can result in severe injury.; Table of error codes

65 16. Table of error codes L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from thewall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe ...

Page 73 - REFERENCE

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 16. Table of error codes 66 E-10 E-11 E-12 E-14 Cause Emergency stop switch was pressed. Emergency stop switch was pressed during sewing. Emergency stop switch is being continually pressed, or emergency switch connection error. Thread breakage detected. Reme...

Page 74 - Adjustment guide refer to this guide when different button

L K 3 - B 4 4 8 E M A R K I I / B A - 1 6 67 17. Adjustment guide refer to this guide when different button are used When button diameter (D) changes Adjust button selector Adjust button guide Vibrating Bowl Shoot Coil assy Button Slide Base Button Catch Plate Feeder Installation Position Machine He...

Page 78 - INSTRUCTION MANUAL

INSTRUCTION MANUAL Printed in Japan 151-916 S93V48-002 2000.06. H (1) BROTHER INDUSTRIES, LTD. 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177