Brother KE-430F Service Manual
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Brother KE-430F Service Manual

Electronic direct drive lockstitch bar tacker / electronic direct drive lockstitch button sewer
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KE-430F
SERVICE MANUAL
BE-438F
Please read this manual before making any adjustments.
ELECTRONIC DIRECT DRIVE LOCKSTITCH BAR TACKER
ELECTRONIC DIRECT DRIVE LOCKSTITCH BUTTON SEWER

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Summary of Contents for Brother KE-430F

  • Page 1 KE-430F SERVICE MANUAL BE-438F Please read this manual before making any adjustments. ELECTRONIC DIRECT DRIVE LOCKSTITCH BAR TACKER ELECTRONIC DIRECT DRIVE LOCKSTITCH BUTTON SEWER...
  • Page 2 This service manual is intended for KE-430F and BE-438F; be sure to read the KE-430F/BE-438F instruction manual before this manual. Carefully read the “SAFETY INSTRUCTIONS” below and the whole of this manual to understand this product before you start maintenance.
  • Page 3 This symbol ( ) indicates something that you must do. The picture inside the circle indicates the ･･････ nature of the thing that must be done. (For example, the symbol at left means “you must make the ground connection”.) KE-430F, BE-438F...
  • Page 4 Furthermore, do not excessively bend the cords or secure them too firmly Contact your Brother dealer or a qualified electrician with staples, otherwise there is the danger that fire or for any electrical work that may need to be done.
  • Page 5 Furthermore, after tilting back the machine head, do Ask your Brother dealer or a qualified electrician to not push the face plate side or the pulley side from carry out any maintenance and inspection of the above, as this could cause the machine head to electrical system.
  • Page 6 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 dealer. Touching areas where high voltages are present can result in severe injury.
  • Page 7 Thread take-up cover Eye guard Finger guard 2520B Rear cover 2522B Solenoid cover Side cover Transformer box (100V/400V system only) Oil tank 2521B 2559B KE-430F, BE-438F...

  • Page 8: Table Of Contents

    Thread trimmer mechanism......... 59 5-6. Adding tension codes........... 38 8-7. Tension release mechanism........ 60 8-8. Thread nipper mechanism (KE-430F -03, -0F, 5-7. Changing tension codes ........39 -0K specifications only)........60 5-8. Deleting tension codes......... 40 6. X AND Y PARALLEL MOVEMENT OF SEWING PATTERNS......
  • Page 9 9. DISASSEMBLY ........10-14. Work clamp arm mechanism (KE-430F) ..100 10-15. 9-1. Work clamp arm mechanism (BE-438F) ..101 Covers ..............61 10-16. 9-2. Covers............102 Work clamp arm mechanism........ 62 11. ADJUSTMENT........9-3. Needle bar mechanism ........63 9-4.
  • Page 10 11-22. Setting method for standard depression strokes (Foot switch) ........127 12. APPLYING GREASE ......12-1. Applying grease (Work clamp: KE-430F)..129 12-2. Applying grease (When “GREASEUP” appears)......129 13. HOW TO INSTALL THE FEED PLATE FOR KE-430C SERIES IN KE-430F AND BE-438F .........

  • Page 11: Specifications

    *2 No guarantees of operation can be given for any media. Use one with a capacity of 2GB or less. *3 The number of sewing patterns and the number of stitches that can be recorded will vary depending on the number of stitches in each sewing pattern. KE-430F, BE-438F...

  • Page 12: Notes On Handling

    2518B 2518B Returning the machine head to the upright position 1. Pack away any tools which are near the table. 2. While supporting the arm with both hands, gently return the machine head to its original position. 2519B KE-430F, BE-438F...

  • Page 13: Relationship Between Programs And Patterns

    *1 Depending on the memory switch settings, the height of the work clamp/button clamp can also be set by means of parameters. *2 The PS300B can be used to create patterns and load them into actual sewing machines. KE-430F, BE-438F...
  • Page 14 PS300B can also be selected. * Patterns 1 to 89 (1 to 64 for the 438F) are listed in “2-2. List of Sewing Patterns (KE-430F)” and “2-3. List of Sewing Patterns (BE-438F)” in the CD instruction manual. 2591B...
  • Page 15 When memory switch No. 470 is set to ON. Work clamp/button clamp height (medium) (mm) 430F: 1 - 17 / 438F: 1 - 13 When memory switch No. 470 is set to ON. Upper thread tension setting value 0 - 300 KE-430F, BE-438F...

  • Page 16: Function Settings

    Refer to “4-7. Input checking method”. Refer to “11-18. Adjusting the home position”. Output check function 2598B Treadle position adjustment mode 2602B Refer to “11-22. Setting method for standard Refer to “4-8. Output checking method”. depression strokes (Foot switch)”. KE-430F, BE-438F...
  • Page 17 Refer to “11-19. Adjusting the main shaft motor Refer to “4-10. Protection settings”. standard position”. 2606B Digital tension output correction mode 2604B Version update Refer to “7-13. Updating the control program Refer to “11-20. Correcting the digital tension output”. version”. KE-430F, BE-438F...

  • Page 18: List Of Advanced Functions

    Refer to “6. X and Y parallel movement of sewing Refer to the CD Instruction Manual. patterns”. 2615B Program mode SD data read/write mode 2611B Refer to “7-3. Preparation for reading and writing Refer to the CD Instruction Manual. data” KE-430F, BE-438F...

  • Page 19: Setting Memory Switches (Advanced)

    Repeat steps 2 to 4 above to set each memory switch. Exit setting mode. Press the TEST key. ・ The changes will be memorized and the sewing machine will switch to home position detection standby. 2404B TEST indicator switches off KE-430F, BE-438F...

  • Page 20: List Of Memory Switches

    3: (While work clamp switch depressed to 1st step) Work clamp/button clamp rises, (Start switch) Start 4: (Work clamp switch 1st step) Drop (Work clamp switch 2nd step) Start 5: (Work clamp switch 1st step) Drop to intermediate height (Work clamp switch 2nd step) Drop and start KE-430F, BE-438F...
  • Page 21 430F: 400 − 3200 (sti/min) Sewing speed for 2nd stitch before the sewing end 438F: 400 − 2700 (sti/min) *1: The initial value will vary depending on the specifications. (Refer to “Initial values for each application” on the following page.) KE-430F, BE-438F...
  • Page 22 ON/OFF OFF: An “UP” error is displayed without the needle bar moving automatically. (No. 655 can also be used to ignore this sensor.) KE-430F, BE-438F...
  • Page 23 −: Feed timing becomes earlier. (degrees) +: Feed timing becomes later. *1: This is not initialized during initialization mode. *2: The initial value will vary depending on the specifications. (Refer to “Initial values for each application” on the following page.) KE-430F, BE-438F...
  • Page 24 ON: Enable (Operating speed is limited to 2500 sti/min.) ON/OFF OFF: Disable Start switch operation after program is changed ON: Moves to sewing start position and starts (program No. illuminates) ON/OFF OFF: Only moves to sewing start position (program No. flashes) KE-430F, BE-438F...
  • Page 25 Assignment to F1 key: Memory switch No. 407 Assignment to F2 key: Memory switch No. 408 Assignment to F3 key: Memory switch No. 409 Assignment to F4 key: Memory switch No. 410 KE-430F, BE-438F...
  • Page 26 * The work clamp/button clamp height is set by Nos. 471 and 472. 430F: 10 − 17 (mm) Work clamp/button clamp raise position setting 438F: 6 − 13 * Enabled when No. 470 is set to “OFF”. (mm) KE-430F, BE-438F...
  • Page 27 Setting units: 1mm Work clamp/button (Initial setting is 1mm) clamp height (intermediate * This displayed Initial value drop) when memory switch No. 071 is set to “2” when memory switch No. 072 is set 2782B to “2” or “5”. 2783B KE-430F, BE-438F...
  • Page 28 + direction: parallel Work clamp/button movement clamp moves amount the left. Initial value 2784B 2785B -9.9 − 9.9mm Setting units: 0.1mm (Initial setting is 0.0mm) + direction: parallel Work clamp/button movement clamp moves amount forward. Initial value 2786B 2787B KE-430F, BE-438F...
  • Page 29 Nip timing offset for thread nipper device (degrees) -160 − 110 Release timing offset for thread nipper device (degrees) *1: These functions can be used if the main PCB version is 1.5.00 or later. *2: This is not initialized during initialization mode. KE-430F, BE-438F...
  • Page 30 OFF: Buzzer does not stop. (seconds) 2 – 30: Buzzer stops after the specified time. *1: This is not initialized during initialization mode. *2: These functions can be used if the main PCB version is 1.5.00 or later. KE-430F, BE-438F...
  • Page 31 Eyelet bar tack closing device (old 432 series) OFF: Disable OFF, 1 − 2 1: Eyelet bar tacker closing device operates after the work clamp has dropped. 2: Eyelet bar tack closing device operates at the sewing start. KE-430F, BE-438F...

  • Page 32: Setting The Foot Switch Operation Mode

    No. 071 Depress 1st step 2nd step Neutral Depressed further Release Work clamp Sewing machine Work clamp raised maximum drop start Work clamp Work clamp maximum drop + Work clamp raised intermediate drop sewing machine start 2984B 2985B KE-430F, BE-438F...
  • Page 33 Work clamp Work clamp maximum drop Work clamp raised intermediate + sewing drop machine start *1 Enabled when the work clamp switch is at neutral and the work clamp/button clamp is fully lowered. 2986B 2987B KE-430F, BE-438F...

  • Page 34: Checking The Error History

    The production counter when the error occurred will appear in the PROGRAM No. display (2) and the menu display (3) in units of 100 stitches while the key (6) is being pressed. 3. Press the TEST key (5) to return to the normal display. The sewing machine will switch to home position detection standby. KE-430F, BE-438F...

  • Page 35: Input Checking Method

    Y-feed motor encoder counter value Move the work clamp/button clamp manually in the Y direction. [-999] − [ 999] [ 4] [EnY] * Back = down, and forward = up. * When the power is turned on, the position will be “0”. KE-430F, BE-438F...
  • Page 36 Work clamp switch 2nd step for 2-step foot switch [ 14] [CL2] [ on] / [ oFF] Depress the work clamp switch to the 2nd step. Start switch for 2-step foot switch [ 15] [Stt] [ on] / [ oFF] Depress the start switch. KE-430F, BE-438F...
  • Page 37 [ on] / [ oFF] Option input (IN7) [ 27] [in8] [ on] / [ oFF] Option input (IN8) [ 28] [in9] [ on] / [ oFF] Option input (IN9) [ 29] [i10] [ on] / [ oFF] Option input (IN10) KE-430F, BE-438F...

  • Page 38: Output Checking Method

    When you press the key, the thread nipper moves toward the home position. [ 54] [PM−n] When you press the key, the thread nipper moves toward the retract position. KE-430F, BE-438F...
  • Page 39 Option output 17 turns on. [ 76] [oP18] Option output 18 turns on. [ 77] [oP19] Option output 19 turns on. [ 78] [oP20] Option output 20 turns on. * Cannot be used with the KE-430F and BE-438F. KE-430F, BE-438F...

  • Page 40: Confirming Software Version

    [1.00 ] [4.in] Main IPL [1.00 ] [5.it] Motor IPL [1.00 ] [6.iL] Panel IPL [1.00 ] 3. Press the TEST key (5) to return to the normal display. The sewing machine will switch to home position detection standby. KE-430F, BE-438F...

  • Page 41: Protection Settings

    9. Repeat steps 6 to 8 above for each item, and then press the TEST key (2). * The protect setting mode will be exited and the sewing machine will change to home position standby. * If you would like to return to protection level setting (2 above), press the F1 key (8). KE-430F, BE-438F...
  • Page 42 Protect setting mode can only be started using Method B. 3. Press the ENTER key (3) to store the starting method. 4. For the method of operation from this point onward, refer to steps 2 to 9 in “Method A” (previous page). KE-430F, BE-438F...
  • Page 43 × mode Cycle program × × × × × × setting mode Pattern data × editing mode Data read/write × mode Sewing start after pause using the STOP × switch (available by special order) Parallel movement × mode KE-430F, BE-438F...

  • Page 44: Editing Pattern Data

    Upper thread tension T4 Tension Code Upper thread tension T6 * Of all the tension codes (T1 to T9), only the tension codes which have been programmed Section into pattern No. 200 will be displayed. Final stitch 2624B KE-430F, BE-438F...

  • Page 45: Work Flowchart

    5. EDITING PATTERN DATA 5-2. Work flowchart 2922B KE-430F, BE-438F...

  • Page 46: Switching To Pattern Editing Mode

    -: Moves in the reverse direction 2629B 2630B End pattern editing mode Press the TEST key. ・ The display will return to the normal display and the sewing machine will change to home position standby. 2404B TEST indicator switches off KE-430F, BE-438F...

  • Page 47: Copying Pattern Data

    To do the copying, press the ENTER key. ・ The pattern will be copied and the sewing machine will then return to pattern editing mode. If you would like to return to pattern editing mode without copying the pattern, press the RESET key. 2414B 2634B KE-430F, BE-438F...

  • Page 48: Adding Tension Codes

    If you would like to return to pattern editing mode without adding a tension code, press the key. If you would like to end pattern editing mode without adding a tension code, press the TEST key. 2414B 2638B 2404B KE-430F, BE-438F...

  • Page 49: Changing Tension Codes

    If you would like to return to pattern editing mode without changing a tension code, press the key. If you would like to end pattern editing mode without changing a tension code, press the TEST key. 2414B 2638B 2404B KE-430F, BE-438F...

  • Page 50: Deleting Tension Codes

    1. * The tension code in section 1 is the only tension code which cannot be deleted. If you would like to return to pattern editing mode without 2414B 2634B deleting the tension code, press the RESET key. KE-430F, BE-438F...

  • Page 51: And Y Parallel Movement Of Sewing Patterns

    2778B Confirm the movement amount. Press the ENTER key. ・ The amount of parallel movement in the horizontal direction will be confirmed, and the menu display will change to illuminated. 2414B (Continued on next page.) KE-430F, BE-438F...
  • Page 52 ・ When the power switch is turned off, the movement amount which has been stored will be reset. However, if memory switch No. 465 is set to “2”, the movement amount will remain stored and will not be reset. KE-430F, BE-438F...

  • Page 53: Using Sd Cards

    SD card, change the name of the folder. Memory switch Same as above ISMMSW.SEW Parameter Same as above ISMUPG.SEW Cycle program Same as above ISMCYC.SEW Error log \BROTHER\ISM\ISMLDT\ Stores the files which relate to error logs. KE-430F, BE-438F...

  • Page 54: Preparation For Reading And Writing Data

    SD card. [LoG-] Error log data is written to the SD card. * The additional pattern data that can be used with this sewing machine is data which has been created for the KE-430F/BE-438F or for the KE-430D/BE-438D. KE-430F, BE-438F...

  • Page 55: Reading Additional Pattern Data

    2654B Ending read/write mode Press the TEST key. * To sew a pattern that you want to add, register a TEST indicator switches off program while referring to “5-2. Program setting method” in the CD Instruction Manual. 2404B KE-430F, BE-438F...

  • Page 56: Writing Additional Pattern Data To An Sd Card

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2659B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 57: Reading Memory Switch Data

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2661B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 58: Writing Memory Switch Data To The Sd Card

    ・ If you would like to use any other read/write modes, key to select the mode and then press the run it. 2664B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 59: Reading Program Data

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2665B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 60: Writing Program Data To An Sd Card

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2666B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 61: Reading Sewing Machine Data

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2669B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 62: Writing Sewing Machine Data To An Sd Card

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2671B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 63: Writing Error Log Data And Memory Switch Log Data To An Sd Card

    ・ If you would like to use any other read/write modes, press the key to select the mode and then run it. 2673B Ending read/write mode Press the TEST key. TEST indicator switches off 2404B KE-430F, BE-438F...

  • Page 64: Updating The Control Program Version

    ・ To continue updating another program, return to step tension display will increment 5 and select the next program to be updated. while the program version is being updated. 2680B 2681B Turn off the power switch. KE-430F, BE-438F...

  • Page 65: Mechanical Descriptions

    6. Needle bar clamp 7. Needle bar 8-2. Lower shaft and shuttle race mechanisms 2524B 1. Pulley 2. Upper shaft 3. Crank rod assembly 4. Rock gear 5. Lower gear 6. Lower shaft assembly 7. Driver 8. Shuttle hook KE-430F, BE-438F...

  • Page 66: Work Clamp Lifter Mechanism

    7. Button clamp rod 8. Button clamp lever 9. Button clamp holder hook assembly 10. Button clamp holder shaft * When the work clamp pulse motor is turned off, the button 11. Button clamp clamp rod rises, and button clamps lower. KE-430F, BE-438F...

  • Page 67: Thread Wiper Mechanism

    2527B 1. Pulse motor T assembly 2. Gear 16 3. Cam gear 4. Cam shaft 5. Thread wiper cam 6. Thread wiper driving lever 7. Thread wiper rod assembly 8. Connecting plate 9. Thread wiper arm assembly KE-430F, BE-438F...

  • Page 68: Feed Mechanism

    3. X-feed gear 4. X-feed lever 5. Regulator block assembly 6. Feed bracket sub assembly Y direction 2529B 1.Pulse motor Y assembly 2. Feed gear 3. Y-feed rack shaft 4. Y-feed rack shaft clamp 5. Feed bracket sub assembly KE-430F, BE-438F...

  • Page 69: Thread Trimmer Mechanism

    19. Thread trimmer driving cam [19] Thread trimmer link 12. Thread trimmer lever V 20. Cam lever thread trimmer [20] Thread trimmer rod H assembly 21. Thread trimmer collar [21] Movable knife lever [22] Movable knife connecting plate [23] Movable knife KE-430F, BE-438F...

  • Page 70: Tension Release Mechanism

    8-7. Tension release mechanism 1. Tension solenoid 2531B 2. Bolt 3. Tension release bar 4. Tension release pin 8-8. Thread nipper mechanism (KE-430F -03, -0F, -0K specifications only) 2532B 1. Pulse motor P assembly 2. Motor lever 3. TR-link 4. Thread driving lever 5.

  • Page 71: Disassembly

    Disassembly should only be carried out by a accessories, be sure to use only genuine Brother qualified technician. parts. Turn off the power switch before disassembly, Brother will not be held responsible for any otherwise the machine may operate if the foot switch accidents or problems resulting from the use of is depressed by mistake, which may result in injury.

  • Page 72: Work Clamp Arm Mechanism

    5. Set screws [2 pcs: Loosen] 2. Needle 6. Button clamp holder shaft 3. Needle bar thread guide 7. Button clamp holder 8. Screws [2 pcs] 4. Nuts [2 pcs] 9. Feed plate Adjusting screw Compression spring [Push upward and remove horizontally] KE-430F, BE-438F...

  • Page 73: Needle Bar Mechanism

    6. Rubber caps [3 pcs] 16. Washer 7. Set screws [2 pcs: Loosen] 17. Thread take-up lever assembly 8. Set screws [2 pcs: Loosen] 18. Washer 9. Thread take-up support 19. Bolts [2 pcs] 10. Set screw collar 20. Slide block guide KE-430F, BE-438F...

  • Page 74: Upper Shaft Mechanism

    9. DISASSEMBLY 9-4. Upper shaft mechanism 2538B 1. Screws [2 pcs] 2. Grease support F 3. Bolt 4. Crank rod washer 5. Crank rod base (Continued on next page.) KE-430F, BE-438F...
  • Page 75 24. Motor assembly 13. Rubber cap 25. Thread trimmer cam 14. Set screws [2 pcs: Loosen] 26. Joint assembly 15. Set screws [2 pcs: Loosen] 27. Upper shaft 16. Set screws [2 pcs: Loosen] 28. Pulley gear R KE-430F, BE-438F...

  • Page 76: Lower Shaft Mechanism

    9. Shuttle race base assembly Do not remove the gear cover if at all possible, otherwise grease will leak out. 2541B 10. Screws [5 pcs] 11. Gear cover 12. Screws [2 pcs] 13. Positioning plate (Continued on next page.) KE-430F, BE-438F...
  • Page 77 19. Rock gear shaft assembly [Pull forward] 25. Oil seal 20. Rock gear 26. Bearing bush assembly 21. Set screws [4 pcs: Loosen] (Tap out the oil seal 25 and the bearing bush together toward the front.) KE-430F, BE-438F...

  • Page 78: Lubrication

    9. DISASSEMBLY 9-6. Lubrication 2542B 1. Bolts [2 pcs] 2. Bolts [2 pcs] 3. Plain washers [2 pcs] 4. Oil tank plate 5. Oil tank nut 6. Oil tank assembly KE-430F, BE-438F...

  • Page 79: Feed Mechanism

    12. Y-motor setting plate [Pulse motor Y assembly] 13. Y-feed rack shaft 14. Bolt 15. X-feed gear 16. Bolt sockets (S/P washers) [3 pcs] 17. X-motor setting plate [Pulse motor X assembly] 18. X-feed lever [Pull upward] 2545B KE-430F, BE-438F...

  • Page 80: Thread Wiper Mechanism

    6. Retaining ring, E 7. Plain washer 8. O rings [2 pcs] 9. Connecting plate [Pull upward] 10. Set screw [Loosen] 11. Retaining ring, E 12. Plain washer 13. Wiper shaft 14. Thread wiper rod assembly [Pull forward] KE-430F, BE-438F...

  • Page 81: Work Clamp Lifter Mechanism

    8. Set screws [2 pcs: Loosen] 18. Lever shaft 28. Thread wiper cam 9. Retaining ring, E 19. Drive lever w-clamp lifter 29. Thread trimmer driving cam 10. Driving thread trimmer shaft 20. Plain washer (Continued on next page.) KE-430F, BE-438F...
  • Page 82 43. Button clamp rod [Pull upward] 44. Set screw [Loosen] 45. Button clamp lever shaft [Pull out] 46. Retaining ring, E 47. Plain washer 48. Button clamp lever 49. Bolts [2 pcs] 50. Button clamp lever holder 2551B KE-430F, BE-438F...

  • Page 83: Threading Mechanism

    2. Solenoid cover 9. Bolt 3. Screws [2 pcs] 10. Nut 4. Tension solenoid 11. Plain washer 5. Bolts [2 pcs] 12. Solenoid cushion 6. Spring washers [2 pcs] 13. Tension release bar 7. Plain washers [2 pcs] 2553B KE-430F, BE-438F...

  • Page 84: Thread Nipper Mechanism (Ke-430F -03, -0F, -0K Specifications Only)

    9. DISASSEMBLY 9-12. Thread nipper mechanism (KE-430F -03, -0F, -0K specifications only) 2554B 1. Link shoulder screws [2 pcs] 17. Washers [2 pcs] 2. TR-Ling 18. TN-connecting plate R 3. Set screws [2 pcs: Loosen] 19. TN-connecting plate F assembly 4.

  • Page 85: Thread Trimmer Mechanism

    9. Shoulder screw B 10. Driving lever 11. Set screws [2 pcs: Loosen] 12. Retaining ring, C 13. Collar shaft 14. Thread trimmer collar 15. Screws [2 pcs] 16. Flat screws [2 pcs] 17. Needle plate 2556B (Continued on next page.) KE-430F, BE-438F...
  • Page 86 * 57. Screws [2 pcs] [KE-430F only] 29. Retaining ring, C 44. Movable knife lever shaft * 58. Spring washers [2 pcs] [KE-430F only] 30. Washers [2 pcs] 45. Shoulder screw 6.35-6 * 59. Plain washers [2 pcs] [KE-430F only] 31.

  • Page 87: Shuttle Hook Mechanism

    9. DISASSEMBLY 9-14. Shuttle hook mechanism 2558B 1. Bobbin case assembly 2. Shuttle race base setting claw [Open to right and left] 3. Shuttle race base 4. Shuttle hook KE-430F, BE-438F...

  • Page 88: Assembly

    Disassembly should only be carried out by a accessories, be sure to use only genuine Brother qualified technician. parts. Turn off the power switch before disassembly, Brother will not be held responsible for any otherwise the machine may operate if the foot switch accidents or problems resulting from the use of is depressed by mistake, which may result in injury.
  • Page 89 23. Guide shaft 36. Link shoulder screw 24. Spring 37. Nut 25. Set screws [2 pcs: Tighten] 38. Thread trimmer solenoid assembly 26. Shoulder screw B 39. Bolts [3 pcs] 27. Nut 40. Connecting plate 41. Shoulder screw, 6-1.8 2835B KE-430F, BE-438F...

  • Page 90: Tension Release Mechanism

    2. Thread take-up spring 2837B 3. Tension stud assembly 4. Plain washer 5. Nut 6. Set screw [Tighten] 7. Tension release pin 8. Set screw [Tighten] Adjust the thread take-up spring height while referring to “11-1-2. Thread take-up spring”. KE-430F, BE-438F...

  • Page 91: Thread Wiper Mechanism

    5. Set screw [Tighten] 6. O rings [2 pcs] 7. Connecting plate 8. Plain washer 9. Retaining ring, E 10. Thread wiper arm assembly 11. Plain washers [2 pcs] 12. Screws [2 pcs] 13. Retaining ring, E 14. Set screw [Tighten] KE-430F, BE-438F...

  • Page 92: Thread Nipper Mechanism

    Insert the Y-feed rack shaft (1), and then 16. Motor bracket rear assembly turn the eccentric shaft 1 so that it is lightly 17. Washers [2 pcs] touching the ball bearing (2); then tighten the set screw 2. Temporarily remove the Y-feed rack shaft (1). KE-430F, BE-438F...

  • Page 93: Work Clamp Lifter Mechanism

    8. Set screws [6 pcs: Tighten] 18. Plain washer 28. Bolts [3 pcs] 9. Set screw collar 19. Cam lever thread trimmer 29. Link shoulder screw 10. Set screws [2 pcs: Tighten] 20. Driving thread trimmer shaft (Continued on next page.) KE-430F, BE-438F...
  • Page 94 Make sure that the harness connector is facing the correct way at this time. Engage drive gear 16 23 and the cam gear 6, and while taking up the backlash (play), install the pulse motor T assembly 24. (Continued on next page.) KE-430F, BE-438F...
  • Page 95 (438F) is lowered, the needle bar guide slide block 31 (430F) or 42 (438F) moves away, so hold the work clamp lifter plate assembly 30 2845B (430F)/button clamp rod 37 (438F) in place until the link shoulder screw 38 (430F) or 49 (438F) is tightened. KE-430F, BE-438F...

  • Page 96: Feed Mechanism

    Engage the feed gear 1 and the X-feed gear 6 so that the index marks are as close together as possible, and then tighten the bolt 7 so that the gears move smoothly in the axial direction with no play. (Continued on next page.) KE-430F, BE-438F...
  • Page 97 2852B Move the feed bracket sub assembly 12 back and forth so that the Y-feed rack shaft 8 and the feed bracket sub assembly 12 move smoothly, and then tighten the four bolts 11. (Continued on next page.) KE-430F, BE-438F...
  • Page 98 * For the BE-438F, be particularly careful that the mechanism is in the correct position shown in the illustration. Approx. 95 mm 2854B After installing, carry out the steps in "Feed mechanism home position adjustment" on the following page. (Continued on next page.) KE-430F, BE-438F...
  • Page 99 Tighten the bolt (5). Turn off the power switch and check that there is no play in the X-feed gear (8) in the axial direction. Make fine adjustments while referring to "11-18-1. X- and Y-feed motor home positions" KE-430F, BE-438F...

  • Page 100: Upper Shaft Mechanism

    10. ASSEMBLY 10-8. Upper shaft mechanism Apply grease <GREASE BZL-300P> specified by Brother to the portions indicated by the white arrows. * 17, 18 and 19 should be installed after carrying out the installations in “10-10. Lower shaft mechanism”. * Set screws marked with * in the illustration are on the screw stop side.
  • Page 101 (1), tighten the two bolts 22. In gaps of 0.2 mm at both the front and rear of the addition, check that there are gaps at section d (crank crank rod assembly 2. rod assembly 2 and balancer 20). KE-430F, BE-438F...

  • Page 102: Needle Bar Mechanism

    10. ASSEMBLY 10-9. Needle bar mechanism Apply grease <GREASE BZL-300P> specified by Brother to the portions indicated by the white arrows. When tightening the two set screws 11, first turn the pulley approximately 10 times to the position where it turns Inside hole smoothly.
  • Page 103 18 to its lowest position, and then set the cut section so that it is facing forward and tighten the screw 19. 4647Q KE-430F, BE-438F...

  • Page 104: Lower Shaft Mechanism

    10. ASSEMBLY 10-10. Lower shaft mechanism Apply grease < GREASE BZL-300P > or < GREASE BZL-302R > specified by Brother to the portions indicated by the white arrows. 1. Shuttle race base assembly 2. Oil tube support 3. Screw 4. Cord holder U3 5.
  • Page 105 Align the angles of the grooves Gap distribution 2871B 8. Rock gear 9. Rock gear shaft assembly 10. Rock gear shaft R 11. Set screws [2 pcs: Tighten] 12. Set screws [2 pcs: Tighten] (Continued on next page.) KE-430F, BE-438F...
  • Page 106 Apply grease (BZL-500 grease) to the outer circumferences of the oil seal 13 and rubber seal L 16 when inserting the oil seal 13 and rubber seal L 16 into the holes in the bed. (Temporarily tighten) 2873B 2874B (Continued on next page.) KE-430F, BE-438F...
  • Page 107 Turn the pulley to set the needle bar to near its lowest position. Insert the grease nozzle (3) into the gear box as far as the lower shaft gear (2), and apply 16g of grease (BZL-500 grease). 16g of grease Insert as far as this 2877B KE-430F, BE-438F...

  • Page 108: Lubrication

    After installing the shuttle hook 4, carry out the adjustments in “11-3. Adjusting 6. Shuttle race base setting claw [Close] the needle bar lift amount and the driver needle guard” and “11-4. Adjusting the 7. Bobbin case assembly needle clearance”. KE-430F, BE-438F...

  • Page 109: Thread Trimmer Mechanism (2)

    2882B 1. Fixed knife 9. Movable knife shoulder screw 2. Plain washers [2 pcs] * 10. Bobbin thread clamp spring [KE-430F only] 3. Spring washers [2 pcs] * 11. Plain washers [2 pcs] [KE-430F only] 4. Screws [2 pcs] * 12. Spring washers [2 pcs] [KE-430F only] 5.

  • Page 110: Work Clamp Arm Mechanism (Ke-430F)

    10. ASSEMBLY 10-14. Work clamp arm mechanism (KE-430F) Push the work clamp arm lever plate (3) in the direction of the arrow to raise the work clamp (4) by about 5 mm, set so that there is a clearance of 0.1 mm...

  • Page 111: Work Clamp Arm Mechanism (Be-438F)

    After installing, check that the needle passes into the button hole without touching the button. (Refer to “11-13. Adjusting the position of the button clamp (BE-438F)”.) Apply grease to the portions indicated by the arrows during assembly. 2889B KE-430F, BE-438F...

  • Page 112: Covers

    9. Screws [4 pcs] 3. Shoulder screws, 8-2 [2 pcs] 10. Rear cover 4. Face plate assembly 11. Screws [4 pcs] 5. Screws [3 pcs] 12. Top cover 6. Eye guard assembly 13. Screws [4 pcs] 7. Bolts [2 pcs] KE-430F, BE-438F...

  • Page 113: Adjustment

    Furthermore, after tilting back the machine head, do Ask your Brother dealer or a qualified electrician to not push the face plate side or the pulley side from carry out any maintenance and inspection of the above, as this may cause the machine head to electrical system.

  • Page 114: Upper And Lower Thread Tension

    * If the work clamp/button clamp is lowered when the work clamp switch is released, the thread tension output will be maintained. * The above operations are enabled when memory switch No. 072 is set to “1” or “2”. KE-430F, BE-438F...

  • Page 115: Thread Take-Up Spring

    Stronger Weaker 2321B Adjust by turning the shaft (2) with a screwdriver. NOTE: When the spring height (stroke) is great or the spring tension is insufficient, it may cause the thread end length to vary after thread trimming. KE-430F, BE-438F...

  • Page 116: Arm Thread Guide C

    (5) and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle bar (reference line A) is aligned with the lower edge of the needle bar bush (3). * If using a DP x 5 needle, use the highest reference line (reference line a). KE-430F, BE-438F...

  • Page 117: Adjusting The Needle Bar Lift Amount And The Driver Needle Guard

    Turn the pulley in the direction of the arrow to align the tip of the rotary hook with the needle center line. Then loosen the set screw (1) and turn the rotary hook adjustment shaft (2) to adjust so that the clearance between the tip of the needle and the rotary hook is 0.01 to 0.08 mm. KE-430F, BE-438F...

  • Page 118: Adjusting The Shuttle Race Thread Guide

    The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be changed if at all possible. 11-6. Rotary hook lubrication amount KE-430F (-05 specifications) KE-430F (-03, -0K, -0F specifications), BE-438F More More Less...

  • Page 119: Adjusting The Thread Trimming

    * Set so that the clearance (section A) is 0 mm, and then check that there is a clearance of 0.1 to 0.3 mm between the thread trimmer collar (3) and the outside of the thread trimmer cam (4) (section B). KE-430F, BE-438F...

  • Page 120: Adjusting The Position Of The Movable Knife

    (3), check if the ridge line on the movable knife (8) is touching the edge of the index mark (9). 8. Return the machine head to its original position, and then install the top cover and the side cover. KE-430F, BE-438F...

  • Page 121: Replacing The Movable Knife And Fixed Knife

    * Move the movable knife (6) as shown in the illustration and check that it trims the thread cleanly. NOTE: If the movable knife spacer (11) is too thick, it will not be possible to trim the thread. 2334B KE-430F, BE-438F...

  • Page 122: Adjusting The Work Clamp Lift Amount (Ke-430F)

    11. ADJUSTMENT 11-10. Adjusting the work clamp lift amount (KE-430F) Adjust so that the actual maximum lift amount for the work clamp is 17 mm above the top of the needle plate when the maximum work clamp height has been set to 17 mm using the operation panel (refer to “Work clamp lifting height” on P.17).

  • Page 123: Adjusting The Holding Pressure (Be-438F)

    (3) so that the distance between the edge of the collar shaft (2) and the edge of the thread trimmer cam (3) is 0.5 - 0.7 mm. After adjusting, tighten the two set screws (1). 2736B KE-430F, BE-438F...

  • Page 124: Adjusting The Thread Wiper

    <Thread wiper racking width adjustment> Remove the side cover. Loosen the set screw (1) and adjust so that the distance from the thread wiper to the center of the needle shown illustration. Approx. 25 mm Approx. 20 mm 2336B 4683Q KE-430F, BE-438F...

  • Page 125: Adjusting The Tension Release Amount

    * Make sure that the movement range for the set collar (10) does not pass the edge of the shaft (11) at this time. 6. Release the thread tension. Check that the opening about (b) for the tension discs is 0.8 to 1.5 mm. 7. Install the solenoid cover (2) with the two screws (1). KE-430F, BE-438F...

  • Page 126: Adjusting The Backlash Amount (Play) Of The Lower Shaft Gear

    8. First tighten the two set screws (4), and then tighten the two set screws (5). 9. Recheck that the backlash amount (play) which was adjusted in step 7 above is correct. 10. Install any parts which were removed from step 5 onward by carrying out the removal procedure in reverse. KE-430F, BE-438F...

  • Page 127: Adjusting The Home Position

    (*1) When “UP” appears in the menu display and the CAUTION indicator flashes and the buzzer sounds, turn the pulley in the direction of the arrow to move the needle bar to the up stop position (near the highest thread take-up position). (Continued on next page.) KE-430F, BE-438F...
  • Page 128 (*1) When “UP” appears in the menu display and the CAUTION indicator flashes and the buzzer sounds, turn the pulley in the direction of the arrow to move the needle bar to the up stop position (near the highest thread take-up position). KE-430F, BE-438F...

  • Page 129: Work Clamp Lift Motor Home Position

    The offset value in the menu display will flash, and “JoG” will illuminate in the TENSION display. Press the key once to reduce the offset value by 1. For example, if the offset value is -2 3007B 2800B 2801B 2899B (Continued on next page.) KE-430F, BE-438F...
  • Page 130 Press the TEST key. ・ The display will return to the normal display and the sewing machine will switch to home position detection standby. 2404B TEST indicator switches off Turn off the power switch and install the top cover. KE-430F, BE-438F...

  • Page 131: Thread Nipper Motor Home Position

    For example, if the offset value is 8 ・ The thread nipper will operate in accordance with the offset value. ・ The offset value in the menu display will flash, and “JoG” will illuminate in the TENSION display. 2804B 2805B (Continued on next page.) KE-430F, BE-438F...
  • Page 132 TEST indicator switches off 2404B Turn off the power switch, install the shuttle race base, shuttle hook and bobbin case assembly, and then close the shuttle race base cover. KE-430F, BE-438F...

  • Page 133: Adjusting The Main Shaft Motor Standard Position

    Press the ENTER key. ・ " UP" will illuminate in the SECTION No. display and " dn" will illuminate in the TENSION display. If the displays are still flashing, carry out step 4 once more. 2414B 2815B (Continued on next page.) KE-430F, BE-438F...
  • Page 134 The display will return to the normal display and the sewing machine will switch to home position detection standby. TEST indicator switches off 2404B Turn off the power switch and install the needle, the needle bar thread guide and the feed plate. KE-430F, BE-438F...

  • Page 135: Correcting The Digital Tension Output

    1. Adjust the pretension to 5 to 7 gf (0.05 to 0.07 N). * At this time, use the TOYOBO polyester #50 (white) thread which is recommended by Brother. 2. Thread the upper thread as shown in the illustration at left.
  • Page 136 2822B Turn off the power switch. Standard Allowable setting SECTION No. display Setting value value (gf) range (gf) [0～39] [40～119] [120～239] [240～419] Number of measurement 2819B KE-430F, BE-438F...

  • Page 137: Checking The Machine Head Switch

    ENTER key. 2828B Memorizing the maximum backward position With the foot switch depressed all the way backward, wait until the value in the TENSION display stabilizes and then press the ENTER key. 2829B (Continued on next page.) KE-430F, BE-438F...
  • Page 138 If the foot switch operations are not carried out correctly, “ END” will not be displayed and the buzzer will sound. After “1.Frt” is displayed in the menu display, repeat the operation from step 2. 2830B Turn off the power switch. KE-430F, BE-438F...

  • Page 139: Applying Grease

    Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea. 12-1. Applying grease (Work clamp: KE-430F) Periodically apply grease to the sliding parts of the work Viewed from directly above clamp (1) and the work clamp arm (2).
  • Page 140 * If you continue to use the sewing machine after carrying out the reset procedure but without applying grease, problems with the sewing machine may result. <Applying grease> Use Brother-specified “Grease unit (SB1275-001)”. 1. Removing the grease assembly 1. Remove the four screws (1), and then remove the rear cover (2).
  • Page 141 (4) and the two bolts (5). Grease NOTE: Securely tighten the bolt (4) and the two bolts (5). If any of these bolts are loose, grease may leak out and problems with sewing machine operation such as seizing may occur. 2316B KE-430F, BE-438F...
  • Page 142 No. display (3) and the menu display (4) in units of 10,000 stitches. 2. Press and hold the RESET key (5) for 2 seconds or more. (This completes the reset procedure.) 3. When you press the TEST key (6), the displays will return to their normal displays. 2344B KE-430F, BE-438F...

  • Page 143: How To Install The Feed Plate For Ke-430C Series In Ke-430F And Be-438F

    13. HOW TO INSTALL THE FEED PLATE FOR KE-430C SERIES IN KE-430F AND BE-438F 13. HOW TO INSTALL THE FEED PLATE FOR KE-430C SERIES IN KE-430F AND BE-438F If using the feed plate for the KE-430C and BE-438C, install it as follows.

  • Page 144: Installing The 2-Pedal Foot Switch (Option)

    NOTE: ・ Make sure that the ground connections are secure in order to ensure safety. ・ Close the cord presser plate (5) securely so that no foreign objects, insects or small animals can get inside the control box. KE-430F, BE-438F...

  • Page 145: Electric Mechanism

    In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in mind that a high voltage remains for about 5 minutes after power is turned off. Injury When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts such as heat sinks and covers. KE-430F, BE-438F...

  • Page 146: Components Inside And Outside The Control Box And In The Operation Panel

    Eliminates electrical noise that is transmitted along the power supply line. Panel PCB Secured inside the operation panel. This PCB controls indications of the machine status and the input operation Control box Operation panel Main PCB Motor PCB Panel PCB Transformer box Power PCB NF box 2682B KE-430F, BE-438F...

  • Page 147: Fuse Explanation

    If a component on a PCB is damaged, the fuses may blow again soon even after they have been replaced. Part name Part code When a fuse has blown Fuse 15AFB The power indicator is not illuminated, and A10193-001 (glass tube fuse, 15A-250V) nothing operates. Motor PCB 2930B KE-430F, BE-438F...

  • Page 148: Connectors

    15-4-1. Connector positions Main PCB 2931B Motor PCB (Refer to the diagram in “15-3. Fuse explanation”.) KE-430F, BE-438F...
  • Page 149 15. ELECTRIC MECHANISM Power PCB 2932B Panel PCB 2687B KE-430F, BE-438F...

  • Page 150: Contact Failure

    • The work clamp pulse motor rotates but the home position is not detected correctly. • Error E300 is displayed. 2937B • The work clamp pulse motor does not rotate correctly. • Error E300, E301, E330 or E331 is displayed. 2938B KE-430F, BE-438F...
  • Page 151 Sewing operation Problem Connector No. and position • The power indicator is not illuminated, and nothing operates. • Machine operation is unstable. 2942B • The main shaft motor does not operate correctly. • Error E130 is displayed. 2943B KE-430F, BE-438F...
  • Page 152 • Error E055 is displayed after the power is turned on. 2946B • Error E452 is displayed after the power is turned on. 2947B • The machine does not start up with the “brother” display appearing. 2948B (Continued on next page.)
  • Page 153 • Only the power indicator illuminates. • Nothing appears on the operation panel display. 2949B • The sewing machine does not operate when the foot switch is depressed. • Error E130 is displayed. 2950B • Error E131 is displayed. 2951B KE-430F, BE-438F...

  • Page 154: Troubleshooting

    Symbols and their meanings Set-up operation Switch operation condition procedure Yes-or-no follow continues on the decision-making process next page The error status number in the first column of the Turning-off table of “15-5-2. Problem power switch solution and measures” 2707B 2952B KE-430F, BE-438F...
  • Page 155 15. ELECTRIC MECHANISM 2953B KE-430F, BE-438F...
  • Page 156 15. ELECTRIC MECHANISM 2954B KE-430F, BE-438F...
  • Page 157 15. ELECTRIC MECHANISM 2955B KE-430F, BE-438F...

  • Page 158: Problem Solution And Measures

    1. While the power is turned off, check each connector is securely plugged in by referring to “15-4. Connectors”. 2. Find the error status number in the troubleshooting flowchart. 3. From the applicable part of the flowchart, take the reference number to find the correspondingly numbered details of the problem in the following table. KE-430F, BE-438F...
  • Page 159 PCB. OK if illuminated. After checking, turn off the power switch, wait for one minute or more, and then insert P1 into the main PCB and P4 and P6 into the motor PCB. (Continued on next page.) KE-430F, BE-438F...
  • Page 160 1 and 4 of P4. OK if approximately 24 V DC. 2713B 10. Malfunction of operation panel Check that connector P3 (PANEL) of the motor Operation panel assembly PCB is inserted. Panel PCB assembly Panel harness KE-430F, BE-438F...
  • Page 161 10%. b. See #1-2. 8. If "E705" is displayed, the power a. Check that the power supply voltage at the supply voltage is abnormally low. mains is at the specification voltage plus or minus 10%. b. See #1-2. KE-430F, BE-438F...
  • Page 162 3-4 of connector P15 (PEDAL) of the main PCB. (Check between pins 5-6 if using a 2-pedal foot switch.) (Touch the ohmmeter against the lead wires without disconnecting the connector.) OK if the resistance is normally ∞ ohms but 0 ohms when depressed. 2716B KE-430F, BE-438F...
  • Page 163 “4-7. Input checking method”. the motor PCB. OK if the signal turns on and off. b. If step a. (above) is OK, there is a malfunction Motor PCB assembly of the motor PCB. KE-430F, BE-438F...
  • Page 164 1-2 and 3-4 of the cord connector. cord. OK if 2-3 ohms. b. If step a. (above) is OK, there is a malfunction Main PCB assembly of the main PCB. 2719B KE-430F, BE-438F...
  • Page 165 1-2 and 3-4 of the cord connector. cord. OK if 2-3 ohms. b. If step a. (above) is OK, there is a malfunction Main PCB assembly of the main PCB. 2721B KE-430F, BE-438F...
  • Page 166 1-2 and 3-4 of the cord connector. the pulse motor and cord. OK if 2-3 ohms. b. If step a. (above) is OK, there is a malfunction Main PCB assembly of the main PCB. 2723B KE-430F, BE-438F...
  • Page 167 3-4 of the cord connector. the pulse motor and cord. OK if 2-3 ohms. b. If step a. (above) is OK, there is a malfunction Main PCB assembly of the main PCB. 2725B KE-430F, BE-438F...
  • Page 168 Malfunction of foot switch and cord See #4. Error status #15 The machine does not operate correctly for the set program during test feeding. Probable causes Check/ repair/ adjust Parts to be replaced Malfunction of foot switch and cord See #4. KE-430F, BE-438F...
  • Page 169 9. If "E121" is displayed after the Refer to steps 3 to 4 in #8. Main PCB assembly sewing machine operates, there is Pulse motor P assembly a problem with the operation of the work clamp pulse motor. (Continued on next page.) KE-430F, BE-438F...
  • Page 170 If the uneven seams are due to insufficient incorrectly adjusted. work clamp pressure, adjust while referring to "11-10. Adjusting the work clamp lift amount (KE-430F)" or "11-11. Adjusting the button clamp lift amount (BE-438F)". c. If there is play in the feed mechanism, adjust the feed mechanism.
  • Page 171 With main connector (SOL2) connected, turn on the power and carry out sewing, and measure the voltage between pins 1-2 of connector P3 (SOL2). OK if there is voltage output momentarily after sewing stops. 2728B KE-430F, BE-438F...
  • Page 172 (Carry out 16-sector formatting.) 3. Malfunction of SD card Use a PC to check if the contents of the SD card can be read. 4. Malfunction of operation panel See #12. Panel PCB assembly Panel harness KE-430F, BE-438F...

  • Page 173: Table Of Error Codes

    An operation panel key was still being pressed when the power was turned on, or key is faulty. E065 Turn off the power and check the operation panel. (*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650. KE-430F, BE-438F...
  • Page 174 Turn off the power, and then check that connectors P19 and P23 on the main PCB are properly connected. Work clamp/button clamp raised or lowered position cannot be detected. E301 Turn off the power, and then check that there is no problem with the vertical work clamp/button clamp position. KE-430F, BE-438F...
  • Page 175 Press the RESET key (*1) to clear the error. Clear any unnecessary additional patterns. (*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650. KE-430F, BE-438F...
  • Page 176 Turn off the power, and then clean underneath the needle plate to remove any dust and thread scraps. Check that connectors P20 and P4 on the main PCB are properly connected. (*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650. KE-430F, BE-438F...
  • Page 177 Turn off the power, and then turn it back on again. If an error code that is not listed above appears or if carrying out the specified remedy does not solve the problem, contact the place of purchase. KE-430F, BE-438F...

  • Page 178: Troubleshooting

    (BE-438F) Work clamp lift amount Incorrect position of work clamp arm Adjust the work clamp lift amount. P. 112 is incorrect. (KE-430F) lever plate Button clamp lift Incorrect position of button clamp holder Adjust the button clamp lift amount.
  • Page 179 Needle is striking the button. (BE-438F) pattern (BE-438F)” in the CD instruction Instruction manual manual. Button breaks. Refer to “5-5. Checking the sewing Instruction (BE-438F) Needle is striking the button. pattern (BE-438F)” in the CD instruction manual manual. KE-430F, BE-438F...
  • Page 180 Adjust the position of the switching Machine head switch does not work. P. 127 plate. Replace the machine head switch if it is broken. KE-430F, BE-438F...

  • Page 181: Segment Display

    18. 7-SEGMENT DISPLAY LIST 18. 7-SEGMENT DISPLAY LIST 4268M KE-430F, BE-438F...
  • Page 182 MEMO KE-430F, BE-438F...
  • Page 183 MEMO KE-430F, BE-438F...
  • Page 184 SERVICE MANUAL © 2011 Brother Industries, Ltd. All Rights Reserved. KE-430F, BE-438F I0070967B 2011.04. B (2)

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