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Summary of Contents for Brother SE625
- Page 1 Home Sewing Machine SERVICE MANUAL MODEL : SE625/SE600/LB7000 M280D/NV180D/NS1750D/NV960DL NV180K/NV180/LB6950/M270/LB5000 SE630 2017 Brother Industries, Ltd. Published : Sep.,2017 CONFIDENTIAL All rights reserved. Revised : May,2021...
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Page 2: General Information
This was produced based on up-to-date product specifications at the time of issue, but there may have been changes of specifications for the purpose of improvements. Contact manufacturer or local sales company for information concerning such changes. Brother Industries, Ltd. Nagoya, Japan CAUTION <To do the adjustment and the repair safely and surely, follow the instructions below. - Page 3 LIST of UPDATE RECORD Date Added Models Contents SE625/SE600/LB7000/M280D/NV180D/NS1750D/ Sep.,2017 NV960DL/NV180K/NV180/LB6950/M270 Oct.,2017 Changed 4-21, 4-22, 7-6, 7-8 Dec.,2017 Changed 3-38, 4-7, 7-4 Feb.,2018 Changed 7-4, 7-8 Sep.,2018 Changed 3-38 Mar.,2019 Changed 2-5 to 2-7, chapter 4 Nov.,2019 Changed chapter 3, 5-8, chapter 6, 7-2, 7-8...
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Page 4: Table Of Contents
1. Outline of Mechanism ................1 - 1 Main mechanisms ....................1 - 2 Driveline ......................1 - 3 Positions of electronic components ..............1 - 5 Control system block diagram ................1 - 7 Layout for PCB connectors ................1 - 8 Operation of other electronic components ............1 - 11 2. - Page 5 Needle-presser module ...................3 - 30 Needle bar crank rod assy ................3 - 32 BH switch assy ....................3 - 33 PF SW assy .....................3 - 34 Needle bar .......................3 - 35 Needle bar holder assy ..................3 - 36 Threader hook assy ..................3 - 38 Z pulse motor ....................3 - 39 Lead wire assy EMB unit .................3 - 40 X pulse motor, X slider ..................3 - 41...
- Page 6 BH lever switch position ...................4 - 21 Number of BH satin part stitches ..............4 - 22 Pattern ......................4 - 24 Inner rotary hook bracket position ..............4 - 25 Lower thread winding ..................4 - 26 Lower thread tension (standard inner rotary hook assy) .........4 - 27 Belt tension (embroidery unit) ................4 - 28 Embroidery center position (embroidery unit) ..........4 - 29 5.
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Page 7: Outline Of Mechanism
Outline of Mechanism Main mechanisms ............. 1 - 2 Driveline ..............1 - 3 Positions of electronic components......1 - 5 Control system block diagram........1 - 7 Layout for PCB connectors ........1 - 8 Operation of other electronic components ....1 - 11 1 - 1... -
Page 8: Main Mechanisms
Outline of Mechanism Main mechanisms Main body Upper shaft mechanism Thread tension mechanism Bobbin winder mec Needle bar / Presser foot mechanism Lower shaft mechanism Thread cutting mechanism Feed / Rotary hook mechanism Embroidery unit X guide shaft Y guide shaft X driving gear &... -
Page 9: Driveline
Outline of Mechanism Driveline (A) Up and down movement of needle bar, movement of thread take-up lever and zigzag movement of needle bar mechanism Thread take-up Upper shaft Pulley counter weight Needle bar crank Thread take-up lever Needle bar crank rod Needle bar block Needle bar Needle bar... - Page 10 Outline of Mechanism Driveline (B) Movement of feed dog and rotary hook Timing pulley D Timing belt Upper shaft pulley Upper shaft Pulley Feed module Lower shaft gear Lower shaft Feed adjuster F pulse motor Outer rotary hook Feed arm B Vertical lever Vertical adjusting screw Feed bar...
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Page 11: Positions Of Electronic Components
Outline of Mechanism Positions of electronic components Main body Bobbin winder switch Needle position SS-VR (Start/Stop switch and sensor PCB Variable Resistance) PCB Touch panel Presser foot switch Zigzag pulse motor Main PCB Inlet Main motor Button hole switching switch Foot controller jack Embroidery unit connector Photo transistor PCB... - Page 12 Outline of Mechanism Positions of electronic components Embroidery unit Y sensor PCB X pulse motor X sensor PCB Y pulse motor 1 - 6...
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Page 13: Control System Block Diagram
Outline of Mechanism Control system block diagram SSVR PCB Operation SW (x 4) (SS/BK/NP/CUT) SS LED LK LED BW SW Speed VR BHSW x 2, BHLSW Z pulse motor PF SW LED lamp Panel Upthread sensor Touch panel Speed sensor Color LCD Needle position sensor (x 3) Static electricity switch PCB... -
Page 14: Layout For Pcb Connectors
Outline of Mechanism Layout for PCB connectors The illustration below shows layout for Printed Board connectors. Main PCB CN10 SSVR (Needle position (Button hole (*Not used) sensor PCB) switching switch) CN14 (Bobbin winder switch) (Zigzag pulse motor) UTHRD CN15 (Upthread sensor PCB) (Cutter pulse motor) -
Page 15: Panel Pcb
Outline of Mechanism Layout for PCB connectors Panel PCB MAIN (LCD relay PCB) (Main PCB) MFFC SSVR (Foot controller jack) (SS-VR*PCB) *Start/Stop switch and *Variable Resistance Connector Pins Pins #:1 Pins #:5 1 - 9... -
Page 16: Power Supply Unit
Outline of Mechanism Layout for PCB connectors Power supply unit Power supply unit Power supply PCB Power supply PCB assy CN2 (Main motor) CN3 (Main PCB) Pin#2 ---- 24V DC power output 22.8 25.2V Pin#3 ---- 0V Connector Pins Pin # : 1 Pin # : 5 1 - 10... -
Page 17: Operation Of Other Electronic Components
Outline of Mechanism Operation of other electronic components Start/Stop (SS) button....Button for starting and stopping the sewing machine. The machine operates at a slow speed while the button is being held down. - Page 18 Outline of Mechanism Operation of other electronic components Foot controller jack ....This is the jack for plugging in the foot controller in use. ELECSW (Static electricity SW) PCB assy (in panel assy) .
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Page 19: Removal Of Cover
Removal of Cover Main body..............2 - 2 Embroidery unit ............2 - 8 2 - 1... - Page 20 Removal of Cover Main body Removal of Accessory table assy 1. Remove the accessory table assy. Accessory table assy 2 - 2...
- Page 21 Removal of Cover Main body Removal of Needle plate B assy and Free arm cover 1. Remove the needle plate B assy. Refer to 3 - 2 Disassembly of "NT lower thread cutter of needle plate B assy". Disassembling note •...
- Page 22 Removal of Cover Main body Removal of Face plate assy 1. Remove the screw A to remove the face plate assy. Refer to 3 - 3 Disassembly of "NT lower thread cutter of face plate assy". Screw A Screw, Pan (S/P washer) M4X14 Face plate assy Screw A 2 - 4...
- Page 23 Removal of Cover Main body Removal of Base plate cover 1. Remove the two screws A to remove the base plate cover from the base plate. Screw A Screw, Pan (S/P washer) M3X6 Screws A Base plate Base plate cover 2 - 5...
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Page 24: Main Body
Removal of Cover Main body Removal of Front cover assy 1. Remove the two screws A and screw B from the front cover assy. 2. Release the three hooks A, B, C of the front cover assy and the rear cover assy from the each hook tray, and remove the upper side of rear cover assy from the front cover assy. -
Page 25: Removal Of Rear Cover Assy
Removal of Cover Main body Removal of Rear cover assy 1. Remove the screw A and the screw B from the rear cover assy. 2. Remove the rear cover assy while bending the part "A" and the part "B" to get over the presser foot lifter and the drop lever. -
Page 26: Embroidery Unit
Removal of Cover Embroidery unit 1. Remove the screw A to remove the carriage cover from the X carriage assy. Screw A Screw, Pan (S/P washer) M3X6 Carriage cover X carriage assy Screw A 2 - 8... - Page 27 Removal of Cover Embroidery unit 2. Remove the four screws B to remove the ES cover U from the ES cover D assy. Screw B Taptite, Cup B M4X14 ES cover U ES cover D assy Screws B Screws B <Bottom view>...
- Page 28 Removal of Cover Embroidery unit 3. Remove the three screws C from the embroidery unit. 4. Remove the embroidery unit from the ES cover D assy. 5. Disconnect the three connectors of the lead wire assy: EMB unit. Assembling note •...
- Page 29 Application of Disassembly/Assembly NT lower thread cutter of needle plate B assy ........3 - 2 NT lower thread cutter of face plate assy........... 3 - 3 USB cover, Panel PCB assy .............. 3 - 4 Board plate, FC jack assy ..............3 - 5 SSVR PCB assy, LED PCB assy............
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Page 30: Application Of Disassembly/Assembly
Application of NT lower thread cutter of needle plate B assy Disassembly Refer to 2 - 3 "Removal of Needle plate B assy and Free arm cover". 1. Release the hook to remove the cutter cover from the needle plate B assy. 2. -
Page 31: Nt Lower Thread Cutter Of Face Plate Assy
Application of NT lower thread cutter of face plate assy Disassembly Refer to 2 - 4 "Removal of Face plate assy". 1. Remove the screw A to remove the face plate cutter holder from the face plate assy. 2. Remove the NT lower thread cutter from the face plate assy. Caution •... -
Page 32: Usb Cover, Panel Pcb Assy
Application of USB cover, Panel PCB assy Disassembly Refer to 2 - 6 "Removal of Front cover assy". 1. Disconnect all connectors and FFC from the panel PCB assy. Assembling note • Refer to "Wiring of Front cover assy". 2. -
Page 33: Board Plate, Fc Jack Assy
Application of Board plate, FC jack assy Disassembly 1. Remove the two screws A and the two screws B to remove the lead wire assy ELECSW-LCD R frame and the board plate from the front cover. 2. Release the lead wire assy panel USB FG from the securing fixtures and remove it from the front cover. 3. -
Page 34: Ssvr Pcb Assy, Led Pcb Assy
Application of SSVR PCB assy, LED PCB assy Disassembly 1. Remove the three screws A and the screw B to remove the SSVR PCB assy from the front cover. 2. Disconnect the lead wire assy LED from the SSVR PCB assy. 3. -
Page 35: Lcd Relay Pcb Assy, Lcd Assy, Touch Panel Assy
Application of LCD relay PCB assy, LCD assy, Touch panel assy Disassembly 1. Remove the eight screws A to remove the panel unit from the front cover. Screw A Screws A Taptite, Bind B M3X10 Front cover Screws A Panel unit 3 - 7... - Page 36 Application of LCD relay PCB assy, LCD assy, Touch panel assy Disassembly 2. Disconnect all connectors from the LCD relay PCB assy. Assembling note • Refer to "Wiring of LCD unit supply assy". 3. Remove the four screws B to remove the panel cover lid from the panel unit. 4.
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Page 37: Connector Holder Assy
Application of Connector holder assy Disassembly 1. Cut the band to release the each lead wires from the securing fixtures of the connector holder assy. 2. Disconnect the lead wire assy main body from the main PCB assy. 3. Remove the two screws A to remove the connector holder assy from the base plate. Main PCB assy Base plate Screws A... -
Page 38: Inlet Assy
Application of Inlet assy Disassembly Refer to 2 - 5 "Removal of Base plate cover". 1. Disconnect the lead wire assy Inlet from the lead wire assy power unit. 2. Remove the three screws A to remove the base plate. Screw A Taptite, Bind S M4X10 Lead wire assy power unit... -
Page 39: Main Pcb Assy
Application of Main PCB assy Disassembly 1. Disconnect all connectors connected to the main PCB assy. 2. Remove the screw A and the four screws B to remove the main PCB assy. Assembling note • Refer to "Wiring of Thread cutter module / Feed module / Lower side of Main PCB", "Wiring of Thread unit / Upper side of Main PCB". -
Page 40: Main Motor Assy
Application of Main motor assy Disassembly 1. Loosen the two screws A from the motor holder to remove the T belt from the timing pulley. Assembling note • Fully tighten the screw after performing "Adjustment of Motor belt tension". 2. Disconnect the lead wire assy main motor from the power PCB assy of the power unit, and release it from the securing fixtures. - Page 41 Application of Main motor assy Disassembly 4. Remove the motor fan from the main motor assy. 5. Remove the two screws B to remove the main motor assy from the motor holder. Motor holder Motor fan Main motor assy Screw B Screws B Screw, Pan (S/P washer) M3X8 3 - 13...
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Page 42: Np Pcb Assy
Application of NP PCB assy Disassembly 1. Remove the two screws A and the two screws B to remove the NP PCB holder and the main PCB holder. 2. Release the hooks to remove the NP PCB holder from the main PCB holder. Screw A Hooks Screw, Pan (S/P washer) M4X10... -
Page 43: Nt Lower Thread Cutters Of Bobbin Base Assy
Application of NT lower thread cutters of Bobbin base assy Disassembly 1. Remove the bobbin base assy from the BW shaft holder assembly. 2. Remove the bobbin thread cutter holder from the bobbin base. 3. Remove the two NT lower thread cutters from the bobbin base. Caution •... -
Page 44: Power Unit
Application of Power unit Disassembly 1. Release the lead wire assy main-power from the securing fixtures. 2. Remove the three screws A to remove the power unit. 3. Disconnect the lead wire assy main-power from the power unit, and release it from the securing fixtures. -
Page 45: Thread Unit Assy
Application of Thread unit assy Disassembly 1. Remove the two screws A to remove the thread unit assy. Screw A Stud screw M4 Thread unit assy Screws A 3 - 17... -
Page 46: Upthread Pcb Assy, Thread Catching Spring Case
Application of Upthread PCB assy, Thread catching spring case Disassembly 1. Cut the band and release the lead wire assy upthread PCB from the thread unit assy. Assembling note • Refer to "Wiring of Needle thread module". 2. Remove the screw A to remove the upthread PCB assy from the thread unit assy. 3. -
Page 47: Feed Module
Application of Feed module Disassembly 1. Remove the screw A to remove the tension pulley assembly. Disassembling note • To remove the feed module, the tension pulley assembly needs to be removed. 2. Remove the screw B to remove the bushing presser. 3. -
Page 48: Thread Cutter Module
Application of Thread cutter module Disassembly 1. Cut the band to release the lead wires from the securing fixtures of the FPM holder sub assy. 2. Remove the screw A and the screw B to remove the thread cutter module from the feed module. Screw A Screw, Bind M4X5 Band... -
Page 49: Photo Diode Holder Assy
Application of Photo diode holder assy Disassembly 1. Remove the inner rotary hook assy from the feed module. 2. Remove the two screws needle plates to remove the needle plate A assy from the feed module. Screw A Screw needle plate Screws A Needle plate A assy Inner rotary hook assy... -
Page 50: Feed Dog, Outer Rotary Hook Assy
Application of Feed dog, Outer rotary hook assy Disassembly 1. Remove the two screws A to remove the feed dog from the feed bar assy. Assembling note • Fully tighten the screw after performing "Adjustment of Front/back and left/right position of feed dog". -
Page 51: F Pulse Motor
Application of F pulse motor Disassembly 1. Remove the two screws A and turn the feed adjuster in the direction of the arrow to remove the F pulse motor from the FPM holder sub assy. Assembling note • When attaching the F pulse motor, align the much mark of the gear of the F pulse motor to the much mark of the feed adjuster. -
Page 52: Lower Shaft Assy
Application of Lower shaft assy Disassembly 1. Remove the screw A to remove the feed supporting plate B and the feed supporting plate from the feed arm B assy. 2. Remove the M5 nut and the vertical adjuster screw assy from the feed bar assy. Screw A Screw, Bind M3X6 Feed supporting plate B... - Page 53 Application of Lower shaft assy Disassembly 3. Remove the retaining ring E6 to remove the washer, thrust from the lower shaft assy. 4. Remove the three screws B to remove the bushing presser B, the lower shaft bushing and the washer, thrust from the lower shaft assy.
- Page 54 Application of Lower shaft assy Disassembly 5. Remove the two screws C to remove the timing pulley D from the lower shaft assy. 6. Remove the retaining ring E6 to remove the lower shaft bushing from the lower shaft assy. Screw C Screws C Set Screw, Socket (CP) M5X5...
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Page 55: Cutter Blade Assy Of Thread Cutter Module
Application of Cutter blade assy of thread cutter module Disassembly 1. Remove the screw A to remove the spring plate and the presser plate assy from the thread cutter frame assy. 2. Remove the cutter holder from thread cutter frame assy to remove the cutter blade assy from cutter holder. -
Page 56: C Pulse Motor
Application of C pulse motor Disassembly 1. Cut the band and release the lead wire assy C pulse motor. Assembling note • Refer to "Wiring of Thread cutter module". 2. Remove the two screws A to remove the C pulse motor from the motor holder assy. Screw A Screws A Screw, Bind M3X4... -
Page 57: Upper Shaft Assy
Application of Upper shaft assy Disassembly 1. Remove the two screws A to remove the two bushing pressers. 2. Remove the screw B from the thread take-up counter weight. Lift the upper shaft assy, and pull out the thread take-up counter weight from the needle bar crank to remove the upper shaft assy and the washer. -
Page 58: Needle-Presser Module
Application of Needle-presser module Disassembly 1. Remove the screw A to remove the wire clip and the insulate sheet ccom back. Assembling note • Refer to "Wiring of Presser module". 2. Remove the screw B from the arm bed. Screw A Screw, Bind M4X5 Screw B Screw, Pan (washer) M3X18... - Page 59 Application of Needle-presser module Disassembly 3. Remove the two screws C to remove the two presser plates. 4. Remove the needle unit assy. Screw C Taptite, Bind S M4X10 Presser plates Needle unit assy Screws C 3 - 31...
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Page 60: Needle Bar Crank Rod Assy
Application of Needle bar crank rod assy Disassembly 1. Remove the retaining ring E5 to remove the washer,spring. 2. Remove the thread take-up lever link and the needle bar crank rod assy. 3. Remove the screw A to remove the thread take-up lever assy from the needle bar crank rod assy. Assembling note •... -
Page 61: Bh Switch Assy
Application of BH switch assy Disassembly 1. Cut the three bands from the each lead wires. 2. Remove the screw A to remove the BH switch assy. Screw A Screw, Pan (S/P washer) M4X8 BH switch assy Bands Screw A 3 - 33... -
Page 62: Pf Sw Assy
Application of PF SW assy Disassembly 1. Remove the screw A to remove the presser switch holder and the PF SW assy. Screw A Screw, Bind M3X6 Screw A PF SW assy Presser switch holder 3 - 34... -
Page 63: Needle Bar
Application of Needle bar Disassembly 1. Remove the screw A from the needle thread block, and then remove the screw B from the needle bar block. Pull out the needle bar to remove the needle bar block, and the needle thread block. Assembling note •... -
Page 64: Needle Bar Holder Assy
Application of Needle bar holder assy Disassembly 1. Remove the spring A from the needle bar holder assy and the base holder assy. 2. Remove the spring B from the plate and the base holder assy. 3. Remove the spring C from the plate and the thread guide slider. Plate Thread guide slider Spring B... - Page 65 Application of Needle bar holder assy Disassembly 4. Remove the needle bar holder assy. 5. Remove the screw A to remove the plate from the needle bar holder assy. 6. Remove the screw B from the needle holder shaft A. Pull out the shaft from the needle bar holder assy. 7.
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Page 66: Threader Hook Assy
Application of Threader hook assy Disassembly 1. Remove the retaining ring E2.5 from the thread guide shaft A of the needle bar holder assy. 2. Pull out the threader hook assy from the needle threader shaft A. 3. Disassemble the threader hook assy, link A assy, link B, and the thread guide assy. Assembling note •... -
Page 67: Z Pulse Motor
Application of Z pulse motor Disassembly 1. Remove the two screws A to remove the Z pulse motor from the base holder assy. 2. Disconnect the lead wire assy ZPM from the Z pulse motor. Screw A Base holder assy Screw, Bind M3X4 Lead wire assy ZPM Screws A... -
Page 68: Lead Wire Assy Emb Unit
Application of Lead wire assy EMB unit Disassembly 1. Remove the two retaining ring, CS4 and the two washer plain M5 from the ES cover D assy. 2. Remove the two screws A to remove the lead wire assy EMB unit from the ES cover D assy. Assembling note •... -
Page 69: Pulse Motor, X Slider
Application of X pulse motor, X slider Disassembly 1. Remove the two screws A to remove the X pulse motor from the embroidery unit. 2. Release the lead wire assy YPM and the lead wire of the YSENS PCB assy from the X slider to disconnect the lead wire assy YPM from the lead wire of the Y pulse motor. -
Page 70: Belt Presser, X Carriage Unit
Application of X belt presser, X carriage unit Disassembly 1. Remove the screw A to remove the X belt presser from the X carriage guide plate assy and the T belt. Assembling note • Check that the gear teeth of the X belt presser is engaged with the gear teeth of the T belt. 2. -
Page 71: Guide Shaft, Y Tension Pulley, T Belt
Application of X guide shaft, Y tension pulley, T belt Disassembly 1. Pull out the X guide shaft. 2. Remove the retaining ring E2 to remove the roller assy from the Y tension pulley. 3. Remove the screw A to remove the Y tension pulley from the X carriage assy. 4. -
Page 72: Y Pulse Motor
Application of Y pulse motor Disassembly 1. Remove the two screws A to remove the Y pulse motor from the X carriage guide plate assy. Screw A Screw, Pan (S/P washer) M3X6 Screws A Y pulse motor X carriage guide plate assy 3 - 44... -
Page 73: Ysens Pcb Assy: Ccom
Application of YSENS PCB assy: CCOM Disassembly 1. Remove the three screws A to remove the X carriage guide plate assy from the X carriage assy. 2. Remove the screw B to remove the cord holder from the X carriage assy. 3. -
Page 74: Xsens Pcb Assy: Ccom
Application of XSENS PCB assy: CCOM Disassembly 1. Remove the screw A to remove the XSENS PCB assy:CCOM from the main frame assembly. Screw A Screw, Bind M2X4 XSENS PCB assy:CCOM Screw A Main frame assembly 3 - 46... -
Page 75: Tension Pulley Assy, T Belt
Application of X tension pulley assy, T belt Disassembly 1. Remove the screw A to remove the X tension pulley assy from the main frame assembly. 2. Remove the retaining ring E6 to remove the X driving gear from the shaft of the main frame assembly. 3. -
Page 76: Lubrication
Application of Lubrication Disassembly Upper shaft assy Lubrication point Lubricating oil type Quantity of lubrication Felt FBK OIL RO 100 1 - 2 drops Clutch plate MOLYKOTE EM30L Small bead Clutch plate MOLYKOTE EM30L Small bead Felt Felt Clutch plate Lower shaft assy Lubrication point Lubricating oil type... -
Page 77: Feed Module
Application of Lubrication Disassembly Feed module Lubrication point Lubricating oil type Quantity of lubrication OILER Small bead Outer rotary hook shaft EPNOC AP (N) 0 Small bead Outer rotary hook assy MOLYKOTE EM30L Small bead Vertical adjuster screw assy EPNOC AP (N) 0 2 drops Vertical feed shaft EPNOC AP (N) 0... - Page 78 Application of Lubrication Disassembly Feed module Lubrication point Lubricating oil type Quantity of lubrication EPNOC AP (N) 0 Small bead Feed adjuster FBK OIL RO 100 1 - 2 drops EPNOC AP (N) 0 Small bead 10 FPM holder sub assy FBK OIL RO 100 1 - 2 drops MOLYKOTE EM30L...
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Page 79: Thread Cutter Module
Application of Lubrication Disassembly Thread cutter module Lubrication point Lubricating oil type Quantity of lubrication Thread cutter lever EPNOC AP (N) 0 Light covering Idle gear A EPNOC AP (N) 0 Light covering Idle gear B EPNOC AP (N) 0 Light covering EPNOC AP (N) 0 Light covering... -
Page 80: Needle-Presser Module
Application of Lubrication Disassembly Needle-presser module Lubrication point Lubricating oil type Quantity of lubrication Thread releaser assy EPNOC AP (N) 0 2 drops EPNOC AP (N) 0 2 drops EPNOC AP (N) 0 2 drops Base holder assy EPNOC AP (N) 0 2 drops EPNOC AP (N) 0 2 drops... - Page 81 Application of Lubrication Disassembly Needle-presser module Lubrication point Lubricating oil type Quantity of lubrication 18 Presser bar FBK OIL RO 100 2 drops 19 Needle thread block EPNOC AP (N) 0 2 drops 20 Needle bar OILER 2 drops 21 Zigzag adjusting nut EPNOC AP (N) 0 2 drops 22 Shaft...
- Page 82 Application of Lubrication Disassembly Face plate assy Lubrication point Lubricating oil type Quantity of lubrication Needle thread lever shaft MOLYKOTE EM30L Light covering Needle thread lever shaft 3 - 54...
- Page 83 Application of Lubrication Disassembly Embroidery unit Lubrication point Lubricating oil type Quantity of lubrication EPNOC AP (N) 0 Light covering X carriage assy EPNOC AP (N) 0 Small bead EPNOC AP (N) 0 Light covering Main frame assy EPNOC AP (N) 0 Small bead X pulse motor FBK OIL RO 100...
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Page 84: Adjustment
Adjustment Inspection Needle point damage ........4 - 2 Test Mode Start test mode ..........4 - 3 Adjustment Touch panel............4 - 4 Timing belt tension .........4 - 5 Motor belt tension ...........4 - 6 Fine tension ............4 - 7 Upper thread tension ........4 - 8 Front/back position of needle and presser foot...4 - 9 Left base line needle drop ......4 - 10 Needle clearance left/right......4 - 11... -
Page 85: Needle Point Damage
Inspection Needle point damage 1. Put a needle on the level block, and check the needle is not bent. The gap with the block should be even. Level block 2. Slide a needle on your finger and check it moves smoothly. 4 - 2... -
Page 86: Start Test Mode
Test Mode Start test mode Turn on the machine while pressing the (Needle position button) and the (Thread cutter button) to start (test mode selection screen appears). Needle position button Thread cutter button Test mode selection screen 4 - 3... - Page 87 Adjustment Touch panel [Standard] “SUCCESS” should be displayed after touching five “+” on touch panel setting screen by touch pen in numerical order. [Adjustment] 1. Turn off the machine. 2. Turn on the machine while touching screen by touch pen or fingers. *Key point •...
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Page 88: Timing Belt Tension
Adjustment Timing belt tension [Standard] 3 to 5 mm slack should be made by pushing the timing belt at the middle of the upper shaft pulley shaft and the tension pulley shaft with a force of 1.96 N (200 gf). [Adjustment] 1. -
Page 89: Motor Belt Tension
Adjustment Motor belt tension [Standard] 4 to 5 mm slack should be made by pushing the motor belt at the middle of the timing pulley shaft and the motor T-pulley shaft with a force of 0.98 N (100 gf). [Adjustment] 1. -
Page 90: Fine Tension
Adjustment Fine tension [Standard] Pass the schappe spun thread #60 through the tension plate from the thread guide plate assy and pull it slowly by the tension gauge. The tension should be adjusted in 0.06 to 0.09 N (6 to 9 gf). [Adjustment] 1. -
Page 91: Upper Thread Tension
Adjustment Upper thread tension [Standard] Pass the schappe spun thread #60 through the thread guide, tension plate, tension disk A/B and plate assembly, and pull it slowly by tension gauge. The tension should be adjusted in 0.34 to 0.44 N (35 to 45 gf). [Adjustment] 1. -
Page 92: Front/Back Position Of Needle And Presser Foot
Adjustment Front/back position of needle and presser foot [Standard] The needle point should be dropped in the center of the presser foot hole. [Adjustment] 1. Remove the face plate assy. 2. Attach the presser foot “J”. 3. Attach the size 75/11 needle. 4. -
Page 93: Left Base Line Needle Drop
Adjustment Left base line needle drop [Standard] In the test mode #04, needle point (left base line) should be drop in the right side of “V” groove on needle plate A assy. [Adjustment] 1. Remove the face plate assy. 2. Remove the presser foot. 3. -
Page 94: Needle Clearance Left/Right
Adjustment Needle clearance left/right [Standard] In the test mode #04, clearance between the needle point and the outer rotary hook point should be same at the base line of both left and right. [Adjustment] 1. Remove the face plate assy. 2. -
Page 95: Needle Bar Rising
Adjustment Needle bar rising [Standard] The right edge of the needle should be coincided with the outer rotary hook point when raising needle bar 3.1 ±0.2 mm (2.9 to 3.3 mm) up from its lowest position at the left base line. [Adjustment] 1. -
Page 96: Needle Bar Height
Adjustment Needle bar height [Standard] The gap between the top of needle eye and the lower end of the outer rotary hook point should be 1.2 ±0.2 mm (1 to 1.4 mm) when the right edge of the needle is coincided with the outer rotary hook point at the left base line. -
Page 97: Needle Clearance
Adjustment Needle clearance [Standard] The clearance between the scarf of the needle and the outer rotary hook point should be 0.25 mm or less when the rear side of the needle is coincided with the outer rotary hook point at the left base line. [Adjustment] 1. -
Page 98: Needle Threader
Adjustment Needle threader [Standard] When passing the threader hook into the needle eye, clearance between the upper edge of the threader hook and the upper edge of the needle eye should be 0 mm. [Adjustment] 1. Remove the face plate assy. 2. -
Page 99: Presser Bar Height
Adjustment Presser bar height [Standard] When raising the presser foot, clearance between the upper surface of the needle plate A assy and bottom surface of the presser foot should be 6 to 6.5 mm. The presser foot should be in parallel with the feed dog hole of the needle plate A assy. [Adjustment] 1. -
Page 100: Feed Dog Height
Adjustment Feed dog height [Standard] • When the feed dog is at its highest position, the feed dog height from the surface of the needle plate A assy should be 1 ±0.1 mm (0.9 to 1.1 mm). • When the feed dog is at its lowest position, the feed dog should be lowered more than 0.3 mm from the surface of the needle plate A assy. -
Page 101: Front/Back And Left/Right Position Of Feed Dog
Adjustment Front/back and left/right position of feed dog [Standard] When the feed dog is located in the center position and the test mode #06 is operated: • The clearance (front to back) between the forward edge of the feed dog middle tooth and the needle plate A assy should be 3.3 ±0.3 mm (3.0 to 3.6 mm). -
Page 102: Feed Forward/Backward
Adjustment Feed forward/backward [Standard] The difference in length of 100 forward stitches and 100 backward stitches should be within ±5 mm when test mode #13 is operated. And each length of 100 forward stitches and 100 backward stitches should be 150±3 mm (147 to 153 mm). [Confirmation] 1. -
Page 103: Number Of Bh Satin Part Stitches
Adjustment Feed forward/backward <From previous page> [Adjustment] * When adjusting the length of 100 forward stitching and 100 reverse stitching, follow the procedures below. *Key point • If the difference in length of 100 forward stitching and 100 reverse stitching is within ±10 mm, skip Step1. [Step1] Adjustment by the machine mechanism 1. - Page 104 Adjustment BH lever switch position [Standard] The terminal BH0 contacts to the terminal BH1 when the clearance between the part B and the part C of the buttonhole foot "A" is 0.5 mm. The terminal BH0 does not contact to the terminal BH1 when the clearance between the part B and the part C of the buttonhole foot "A"...
- Page 105 Adjustment Number of BH satin part stitches [1/2] [Standard] When sewing a buttonhole stitch in test mode #35, the number of satin stitches of the buttonhole should be 35 to 58 per 20 mm (39 to 62 per 22 mm) on both left and right. [Adjustment] 1.
- Page 106 Adjustment Number of BH satin part stitches [2/2] <From previous page> 9. Again sew the buttonhole stitch, and check the number of satin stitches. 9-1. Adjustment is completed if the number of stitches is within the standard. 9-2. If the number of stitches is out of the standard, proceed to the next step. 10.
- Page 107 Adjustment Pattern [Standard] The lengths of part A and part B of the pattern should be the same when test mode #03 is operated. [Adjustment] 1. Attach the presser foot “N”. 2. Set the schappe spun thread #60 and the folded broadcloth to the machine. 3.
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Page 108: Inner Rotary Hook Bracket Position
Adjustment Inner rotary hook bracket position [Standard] The overlap between the spring plate of the inner rotary hook bracket assy and the protrusion A of the inner rotary hook assy in the front/back direction should be 1.8 ±0.1mm (1.7 to 1.9 mm). [Adjustment] 1. -
Page 109: Lower Thread Winding
Adjustment Lower thread winding [Standard] • The thread is wound to the bobbin uniformly. • The amount of the thread wound to the bobbin is the outside diameter of the bobbin of 80 to 90%. [Adjustment] 1. Attach the front cover and the rear cover when they are removed. 2. -
Page 110: Lower Thread Tension (Standard Inner Rotary Hook Assy)
Adjustment Lower thread tension (standard inner rotary hook assy) The lower thread tension shown in this adjustment is factory set. Its optimum value may vary depending on conditions of use by user. [Standard] When the schappe spun thread #60 is pulled from the standard inner rotary hook assy* slowly with the tension gauge, the thread tension should be 0.1 to 0.12 N (10 to 12 gf). -
Page 111: Belt Tension (Embroidery Unit)
Adjustment Belt tension (embroidery unit) Y timing belt [Standard] 3±1mm slack should be made by pushing the Y timing belt at the middle of the Y driving gear shaft and Y tension pulley shaft with a force of 0.98N (100gf). [Adjustment] 1. -
Page 112: Embroidery Center Position (Embroidery Unit)
Adjustment Embroidery center position (embroidery unit) [Standard] In the test mode #23, the needle point should drop into the center of embroidery sheet hole when the needle is lowered by pressing the key on the screen. [Adjustment] 1. Remove the presser foot. 2. - Page 113 Adjustment Embroidery center position (embroidery unit) <From previous page> If the needle point doesn't drop into the hole on the center of the embroidery sheet, adjust the needle point position according to procedures below. 1. Select the #08 (Embroidery Position Adjust mode). 2.
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Page 114: Electronic Parts
Troubleshooting for Electronic Parts Error message list ............ 5 - 2 Error is displayed ............. 5 - 3 Replacement of main PCB assy or panel PCB assy ... 5 - 7 Correspondence table of “Model” and “Printed-circuit board” ... 5 - 8 5 - 1... -
Page 115: Error Message List
Troubleshooting for Error message list Electronic Parts If any message listed below is displayed on the screen of the machine, an error might have been occurred in the machine. Identify the location with the problem by following the procedures in the reference page and repair it. Error Message Refer to: MAIN MOTOR SPEED... -
Page 116: Error Is Displayed
Troubleshooting for Error is displayed Electronic Parts "F01" is displayed. After the power supply unit is replaced, does the main motor Replace the main PCB assy. correctly rotate in test mode "#14"? 5 - 3... - Page 117 Troubleshooting for Error is displayed Electronic Parts "F02" is displayed. Is one of the start/stop switch, reverse stitch switch, needle position switch, Replace the SSVR PCB assy. thread cutter switch and reinforcement stitch stuck in the pressed position? Get the switch unstuck. 5 - 4...
- Page 118 Troubleshooting for Error is displayed Electronic Parts "F05" or "F06" is displayed. Is the NP PCB assy correctly connected to the main PCB assy Connect it properly. (CN10)? When the NP PCB assy is replaced with a new one, does it work Replace the main PCB assy.
- Page 119 Troubleshooting for Error is displayed Electronic Parts "F07" is displayed. Is the SSVR PCB assy correctly connected to the panel PCB assy Connect it properly. (CN1)? Replace the SSVR PCB assy. 5 - 6...
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Page 120: Replacement Of Main Pcb Assy Or Panel Pcb Assy
Troubleshooting for Replacement of main PCB assy or panel PCB assy Electronic Parts Do not replace the main PCB assy and panel PCB assy simultaneously. The setting data required to run the sewing machine correctly is stored in both the main PCB assy and panel PCB assy. -
Page 121: Correspondence Table Of "Model" And "Printed-Circuit Board
Troubleshooting for Correspondence table of “Model” and “Printed-circuit board” Electronic Parts * Check the part code of the PCB in the parts list and replace it with an appropriate PCB. Panel PCB Parts code ********* VER*.** Main PCB Parts code ********* VER*.**... -
Page 122: Maintenance
Maintenance How to reset counter of the maintenance ....6 - 2 Necessary grease & oil ..........6 - 3 Maintenance point............. 6 - 4 6 - 1... - Page 123 Maintenance How to reset counter of the maintenance When the operating time of the machine reaches 500 hours, the maintenance message (MSG) will be displayed on the LCD. And then do the maintenance according to the instructions of 6-4 to 6-7, and finally reset the hour counter according to the following instructions.
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Page 124: Necessary Grease & Oil
Maintenance Necessary grease & oil Grease 1) Name: MOLYKOTE EM30L 2) Name: EPNOC AP(N) 0 3) Name: MOLYKOTE M DISPERSION Part #: XC8385001 Part #: XC8387001 Part #: XC8386001 4) Name: FBK OIL RO 100 5) Name: OILER Part #: XC8388001 Part #: XZ0206051 6 - 3... -
Page 125: Maintenance Point
Maintenance Maintenance point • The circle in the illustration of the below figure shows the lubrication area, and the arrow shows the lubrication position. 1. Upper shaft unit Grease/Oil (Parts code) Spread MOLYKOTE EM30L (XC8385001) Small bead 2. Lower shaft unit Grease/Oil (Parts code) Spread Grease/Oil (Parts code) - Page 126 Maintenance Maintenance point 3. Needle bar module Take-up support shaft Thread releaser assy Needle bar crank rod assy T cam Thread release lever assy Thread take-up lever assy Z zigzag Needle thread block Presser foot lifter Rubber Shaft Shaft assy Base holder assy Z zigzag lever assy...
- Page 127 Maintenance Maintenance point 4. Feed module Outer rotary hook shaft FPM holder sub assy Outer rotary hook assy Vertical adjuster screw assy Feed adjuster gear assy Feed arm B assy Drop Knob Feed bar assy Vertical feed shaft Grease/Oil (Parts code) Spread Grease/Oil (Parts code) Spread...
- Page 128 Maintenance Maintenance point 5. Embroidery unit Y guide shaft Y gear X carriage assy X guide shaft X driving gear X gear Main frame assy X pulse motor Grease/Oil (Parts code) Spread Grease/Oil (Parts code) Spread EPNOC AP(N) 0 (XC8387001) Light covering MOLYKOTE EM30L (XC8385001) Light covering EPNOC AP(N) 0 (XC8387001)
- Page 129 Special Instructions of Wiring Module wiring ............7 - 2 Main body wiring ............7 - 4 Front cover wiring ........... 7 - 10 Embroidery unit wiring ..........7 - 12 7 - 1...
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Page 130: Special Instructions Of Wiring
Special Instructions Module wiring of Wiring 1. Needle-Presser module / BH switch assy Lead wire assy Z pulse motor Band Lead wire assy BH switch Z pulse motor BH switch assy 2. Thread cutter module C pulse motor Lead wire assy C pulse motor Band Lead wire assy photo transistor Photo transistor assy... - Page 131 Special Instructions Module wiring of Wiring 3. Needle thread module Tube Band Upthread PCB assy Lead wire assy upthread PCB 7 - 3...
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Page 132: Main Body Wiring
Special Instructions Main body wiring of Wiring 1. Power unit Lead wire assy main-power Set the lead wire assy inlet under the blue line. Boss Lead wire assy PWSW Make sure to lock the connector. * Wiring when cord guide cover is installed Lead wire assy inlet Make sure not to route the lead... - Page 133 Special Instructions Main body wiring of Wiring 2. Main motor assy / NP PCB assy Main PCB holder NP PCB holder NP PCB assy Lead wire assy NP PCB Lead wire assy main-power Main motor assy Lead wire assy main motor Main PCB holder 3.
- Page 134 Special Instructions Main body wiring of Wiring 4. Presser module Lead wire assy main-power Lead wire assy Band B PF switch Wire clip Lead wire assy Z pulse motor Each lead wire should not hang Lead wire assy below the rib. main motor Band C Attach the shielded...
- Page 135 Special Instructions Main body wiring of Wiring 5. Thread unit / Upper side of Main PCB No slack allowed. NP PCB assy Wind the lead wire assy NP PCB around the other lead wires twice and connect it to the connector. Band Tube Wind the lead...
- Page 136 Special Instructions Main body wiring of Wiring 6. Thread cutter module / Feed module / Lower side of Main PCB Photo diode holder Cause the lead wire assy Lead wire assy main-power and the lead wire needle plate B switch assy main-panel to cross.
- Page 137 Special Instructions Main body wiring of Wiring 7. Lead wire assy main-panel Lead wire assy main-power Lead wire assy main-panel 7 - 9...
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Page 138: Front Cover Wiring
Special Instructions Front cover wiring of Wiring 1. LCD unit supply assy Flexible flat cable: SML2CD-24 Touch panel FPC Cord guide LCD supply assy FPC LCD relay PCB assy Apply the terminal to the rib. Do not pass the lead Ribs Lead wire assy wire between the ribs. -
Page 139: Front Cover Assy
Special Instructions Front cover wiring of Wiring 2. Front cover assy Be sure to give enough Flexible flat cable: slack in the lead wire. Band SML2CD-24 Wind the lead No slack wire assy LED allowed. to the rib once. Lead wire assy panel USB FG Lead wire assy LED Lead wire assy... -
Page 140: Embroidery Unit Wiring
Special Instructions Embroidery unit wiring of Wiring 1. Embroidery unit (Top view) YSENS PCB assy Y pulse motor Lead wire of Y pulse motor XSENS PCB assy Lead wire assy XSENS PCB Lead wire assy YPM Lead wire assy YSENS PCB X pulse motor Lead wire assy X pulse motor 7 - 12... - Page 141 Special Instructions Embroidery unit wiring of Wiring 2. Lead wire assy EMB unit Band Retaining ring, CS4 ES cover D assy Lead wire assy EMB unit Retaining ring, CS4 Lead wire assy YPM 7 - 13...
- Page 142 08D17HF888M00/02/03/04/20...
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