Brother LK3-B434E Bedienerhandbuch

INSTRUCTION MANUALPlease read this manual before using the machine.Please keep this manual within easy reach for quick reference.ELECTRONIC LOCKSTITCH

4LK3-B434E Mark II3. INSTALLATION3. INSTALLATIONMachine installation should only be carriedout by a qualified technician.Contact your Brother dealer o

5LK3-B434E Mark IIqweryuqeTable1 mmt3-2. Installing the motorInstall the motor u to the work table with the four ac-cessory bolts q, cushions w, cushi

6LK3-B434E Mark II3. INSTALLATION!0!1!2weqoiuytrtuioyTableCushionsCushion collarsNutsFlat washersRubber collers3 mm!33-4. Installing the control box1.

7LK3-B434E Mark II3-5. Installing the rubber cushions3-6. Installing the oil pan3-7. Installing the cushionsInstall the rubber cushions q with the na

8LK3-B434E Mark IIyuqwq3-8. Installing the machine head1. Insert the head hinges q into the machine head so that they are parallel, and then secure th

9LK3-B434E Mark IIBe sure to connect the ground. If the ground connection is not secure, you run the risk of receiv-ing a serious electric shock, and

10LK3-B434E Mark IIConnection locationX, Y, Sewing sensorSynchronizerMachine specification select connectorThread wiper solenoid*Thread take-up soleno

11LK3-B434E Mark II3. INSTALLATION11. Replace PROM control assembly with one which contains sewing data.1) Use the special tool to remove the PROM con

12LK3-B434E Mark II3. INSTALLATION3-14. Piping (for pneumatic)Connect air tubes in accordance with the identified numbers in the figure. At this time,

13LK3-B434E Mark II3. INSTALLATION3-14-1. Installing the air unitMake sure that the air unit does not touch the control box or the work table leg. Wh

iLK3-B434E Mark IIThank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instruc-tions below a

14LK3-B434E Mark IIrApprox. 9 - 10 mm10NV-beltMotorAB3-15. Installing the V-beltApprox. 1 mmSewingmachine1. Gently tilt back the machine head, and the

15LK3-B434E Mark IIeqw[A][B]wqertyu3-16. Installing the belt cover1. Loosen the two screws w of the upper cover q and the two screws r of bed cover Le

16LK3-B434E Mark II3-18. Installing the motor cover1. Install the motor cover q to the motor back coverw with the screws e and the flat washers r.2. P

17LK3-B434E Mark II3. INSTALLATION3-20. Installing the needle sub plate1. Install the four needle sub plate supports q withthe four screws w.2. Insert

18LK3-B434E Mark II3. INSTALLATION CAUTION3-21. Installing the eye guardAttach all safety devices before using the sewing machine.If the machine is us

19LK3-B434E Mark IITurn off the power switch before starting lubricating, otherwise the machine may operate if thefoot switch is depressed by mistake,

20LK3-B434E Mark II5. OPERATION5-1. Name and function of each operation panel itemSELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3

21LK3-B434E Mark IISELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P2POWERB430E Seriesyio!0!1!4!2!3i X-SCALE indicator ..

22LK3-B434E Mark II5-2. Operating procedureProgram No.X-scale (%)Y-scale (%)Speed (rpm)Factory default0 *11001002000Variable range100 - *220 - 20020 -

23LK3-B434E Mark II5. OPERATION5-3. Operating the foot switch Single-pedal foot switch (two steps)When the foot switch is depressed to step 1, the wo

iiLK3-B434E Mark IIUse the sewing machine in an area which is free fromsources of strong electrical noise such as high-frequency welders.Sources of st

24LK3-B434E Mark II5. OPERATION5-4. Operating the emergency stop switchIf the emergency stop switch is pressed while normal sewing or test sewing is b

25LK3-B434E Mark II1. Turn on the power switch.(The POWER indicator will illuminate and the program number will flash in the display window.)2. Press

26LK3-B434E Mark II7. CORRECT USE7-1. Selecting the needle and threadDP × 5 #14DP × 17NY #19Thread#80 - #50#50 - #20Main applicationMedium materialsHe

27LK3-B434E Mark II8. To wind more thread ontothe bobbin, loosen the setscrew t and pull the bob-bin presser q outward.1. Place the bobbin all the way

28LK3-B434E Mark IITurn off the power switch before removing and replacing the bobbin case, otherwise the machinemay operate if the foot switch is dep

29LK3-B434E Mark II8 layers of denim12 layers of denimOrdinary materialsMax. sewing speed (rpm)2,5002,3002,500Use8 layers of denimOrdinary materialsMa

30LK3-B434E Mark IILower HigherqBecome greaterBecome lessqwwqeqWeakerStronger7-6-4. Thread take-up spring height 7-6-5. Thread take-up spring tensionL

31LK3-B434E Mark IITurn off the power switch at the following times, otherwise the machine may operate if the footswitch is depressed by mistake, whic

32LK3-B434E Mark IIr9. MAINTENANCE AND INSPECTION9. MAINTENANCE AND INSPECTION CAUTIONTurn off the power switch before carrying out cleaning, otherwis

33LK3-B434E Mark II9. MAINTENANCE AND INSPECTION9-2. LubricationNOTE1: Fill the machine with oil when the oil level is down to about one-third full in

iiiLK3-B434E Mark II CAUTIONSet the needle to the needle up stop position beforeturning off the power.If this is not done, the wiper may strike the ne

34LK3-B434E Mark II9. MAINTENANCE AND INSPECTIONq9-3. Draining the oil1. Remove and empty the waste oil container qwhenever it is full.2. After emptyi

35LK3-B434E Mark IIMaintenance and inspection of the sewingmachine should only be carried out by a quali-fied technician.Ask your Brother dealer or a

36LK3-B434E Mark IIq0.01 - 0.08 mmTipNeedle center line10-3. Adjusting the driver needle guardTurn the machine pulley to align the tip of the rotary h

37LK3-B434E Mark IIqqewrqBA10-6. Adjusting the thread take-up amount10-7. Adjusting the movable knife10. STANDARD ADJUSTMENTSewThread take-up amount (

38LK3-B434E Mark IIqwerti!0otyuo!210-7-1. Replacing the movable knife and fixed knife1. Open the large shuttle hook cover, remove the bolts q and the

39LK3-B434E Mark II10-7-2. Adjusting the engagement of the movable knife and fixed knifeA. After the movable knife and fixed knife are properly engage

40LK3-B434E Mark II10. STANDARD ADJUSTMENTS10-8. Adjusting the work clamp lift amountThe maximum work clamp lift amount is 17 mm (25mm for pneumatic,

41LK3-B434E Mark II10. STANDARD ADJUSTMENTS10-9. Work clamp interchangeabilityThe BAS-311E work clamp can also be used with theB434E Mark ll.Replace t

42LK3-B434E Mark II2 ± 0.5 mmqweApprox.20 mmrt10-11. Adjusting the thread wiper1. Loosen the set screw w and move the wiper arm support e up or down t

43LK3-B434E Mark II1. When the X-SCALE indicator q is illuminated and the RESET switch e is pressed while the TEST switch wis being pressed, the state

ivLK3-B434E Mark IISafety devicesEye guardFinger guardThread take-up coverThread take-up solenoid coverBelt coverMotor cover, etc.2Moving partsmay cau

44LK3-B434E Mark II10. STANDARD ADJUSTMENTSSELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P2POWERB430E Seriesret200V220V

45LK3-B434E Mark IISELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P2B430E SeriesPOWERreqytowui10-15. Moving stitch patte

46LK3-B434E Mark II10-16. Adjustment of air pressure (for pneumatic)1. Air pressure should be 0.5 Mpa.The air pressure can be adjusted by pulling up a

47LK3-B434E Mark II11. USING THE COUNTERS11-1. Using the bobbin thread counterSELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P

48LK3-B434E Mark IIqDIPA-1DIPA-2DIPA-3DIPA-4DIPA-5DIPA-6DIPA-7DIPA-8Motion when set to ONSee “14. Setting the presser mode”Presser does not automatica

49LK3-B434E Mark IIqDIPB-1DIPB-2DIPB-3DIPB-4DIPB-5DIPB-6DIPB-7DIPB-8Motion when set to ONFirst two stitches are sewn at a low speed of 260 rpm.Last tw

50LK3-B434E Mark II12-3. Using user programsRecording a user program8. Press the DISPLAY SET switches !0 to select the Y scale setting that you would

51LK3-B434E Mark IIClearing the user programs2. Depress the foot switch to the second step.3. Check the sewing pattern (see P.25), and then sew the pa

52LK3-B434E Mark IISELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P2POWERB430E Seriesrtwye13. CHANGING SPECIAL FUNCTIONS

53LK3-B434E Mark II13. CHANGING SPECIAL FUNCTIONS USING THE MEMORY SWITCHES Memory switches 10 - 1F Memory switches 20 - 2Fmemo-10-memo-11memo-12mem

LK3-B434E Mark IICONTENTS1. NAME OF EACH PART ... 012. SPECIFICATIONS ... 022-1. Spe

54LK3-B434E Mark II13. CHANGING SPECIAL FUNCTIONS USING THE MEMORY SWITCHES Memory switches 30 - 4F30 to 4F are set by entering two-digit values.Thes

55LK3-B434E Mark IIoSELECTPROGRAM NO.RESETCOUNTERX-SCALEY-SCALESPEEDPTESTBOBBIN.WINDP4P3P1 P2POWERB430E Series!0!1ew!2rtyuiq13-1. Using the cycl

56LK3-B434E Mark II13. CHANGING SPECIAL FUNCTIONS USING THE MEMORY SWITCHES1. When “c1-1” is flashing in the display window !0, press the foot switch

57LK3-B434E Mark II14. SETTING THE WORK CLAMP MODE14-1. Setting solenoid work clamp mode14. SETTING THE WORK CLAMP MODE–ON–ONDIPA-2––ONONPedal specifi

58LK3-B434E Mark II1B2B1B2B1A2A1A2AABDC14. SETTING THE WORK CLAMP MODE[How to use]1. Depress the presser pedal to the 1st step to lower the pressers a

59LK3-B434E Mark II14. SETTING THE WORK CLAMP MODE1. Reverse stitching is possible within 4.5 mm left andright from the reference point.However, note

60LK3-B434E Mark IIWait at least 5 minutes after turning off the power switch and disconnecting the power cord fromthe wall outlet before opening the

61LK3-B434E Mark II15. TABLE OF ERROR CODESE-80E-81E-82E-90E-91CauseMotor PROM is not correctly inserted.Foot switch was depressed when the power was

62LK3-B434E Mark II16. GAUGE PARTS LIST ACCORDING TO SUBCLASSESThe following are standard gauge parts according to each specification. (In the followi

63LK3-B434E Mark II16. GAUGE PARTS LIST ACCORDING TO SUBCLASSES<Gauge parts>The following are provided as optional gauge parts.Each work clamp p

1LK3-B434E Mark II1. NAME OF EACH PART1. NAME OF EACH PARTSafety devices;q Power switch !2 Finger guardw Control box !3 Eye guarde Operation panel !4

64LK3-B434E Mark II16. GAUGE PARTS LIST ACCORDING TO SUBCLASSES6156088-001 (S)156089-001 (S)156090-001 (S)RLWork clampFeed plate5156082-001 (L)156083-

65LK3-B434E Mark II17. TROUBLESHOOTING17. TROUBLESHOOTINGProblem Cause Check Remedy PageWork clamp does not rise.Work clamp does not drop.Work clamp l

66LK3-B434E Mark II17. TROUBLESHOOTINGProblem Cause Check Remedy PageUpper thread breaks.Upper thread tension is too strong.Upper thread tensionAdjust

67LK3-B434E Mark IIProblem Cause Check Remedy PageUpper thread is not trimmed.Fixed knife is blunt.Fixed knife bladeSharpen or replace the fixed knife

68LK3-B434E Mark II18. OPTIONAL PARTS Two-pedal foot switch... The presser switch and the start switch have been

INSTRUCTION MANUALPrinted in Japan118-V34S91V34-0022000.06. B (1)BROTHER INDUSTRIES, LTD.15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone

2LK3-B434E Mark II2. SPECIFICATIONS2-1. Specifications2. SPECIFICATIONSMaximum sewing speedMaximum pattern sizeFeed mechanismStitch lengthNumber of st

3LK3-B434E Mark II2-2. Examples of sewing patternsThe following are examples of possible patterns with the LK3-B434E Mark II.2. SPECIFICATIONSUsesNumb