Page 3 1. Outline of Mechanism ................1 - 1 Main Mechanisms ................1 - 2 Driveline ..................1 - 3 Positions of electronic components ..........1 - 4 Control system block diagram ............1 - 5 Operation of other electronic components ........1 - 6 Using the threader ................1 - 8 2.
Page 4 Knee lifter assembly removal ......................2 - 20 Embroidery unit connector assembly removal ................2 - 21 Main PCB assembly removal ......................2 - 21 NP PCB assembly (D6) removal .....................2 - 21 NP PCB assembly (D6) disassembly ....................2 - 21 Motor fan removal ...........................2 - 22 Main motor assembly removal ......................2 - 22 Main motor assembly disassembly ....................2 - 23 Thread tension unit ..................2 - 24...
Page 5 Sheet removal ..........................2 - 43 Lower shaft A assembly removal ....................2 - 43 Needle-presser unit, needle threader unit, upper shaft unit ......2 - 44 Upper shaft cover removal .......................2 - 45 Tension pulley assembly removal ....................2 - 45 Upper shaft assembly removal ......................2 - 46 Needle-presser module removal ......................2 - 47 Plate spring removal ........................2 - 48 Needle thread module removal ......................2 - 48...
Page 6 Needle thread module ..................2 - 67 Pile holder assembly removal ......................2 - 68 Thread guide base plate assembly removal ..................2 - 68 Thread guide base plate disassembly ....................2 - 69 Thread guide base assembly removal ....................2 - 69 ATTHD INIT PCB assembly removal ....................2 - 70 ATTHD INIT PCB ASSY disassembly ...................2 - 70 TH pulse motor assembly removal ....................2 - 70 Rack assembly remove ........................2 - 71...
Page 7 Thread cutter module ..................2 - 90 Thread cutter frame assembly removal ....................2 - 91 Presser plate assembly removal ......................2 - 91 Pile (4X8) removal ...........................2 - 91 Thread hook ASSY disassembly .....................2 - 92 Rubber removal ..........................2 - 92 Thread cutter lever assembly removal .....................2 - 93 Thread cutter lever ASSY disassembly ...................2 - 93 Photo transistor assembly removal ....................2 - 93 Idle gears A and B removal ......................2 - 94...
Page 8 3. Assembly .....................3 - 1 Needle-presser unit, needle threader unit, upper shaft unit .......3 - 2 Needle thread module attachment ......................3 - 3 Plate spring attachment ........................3 - 3 Needle-presser module attachment ....................3 - 4 Upper shaft assembly attachment ......................3 - 5 Needle-presser module and upper shaft assembly connection ............3 - 6 Upper shaft cover attachment ......................3 - 7 Rotary hook driving unit, feed/rotary hook unit, thread cutter unit, side feed unit 3 - 8...
Page 9 AT INIT PCB assembly attachment ....................3 - 34 Upper thread PCB ASSY assembly ....................3 - 34 Upper thread PCB assembly attachment ..................3 - 35 Thread guide attachment ........................3 - 35 Thread guide assembly attachment ....................3 - 36 Power unit, motor unit ..................3 - 37 Main motor assembly attachment ....................3 - 38 Motor fan attachment ........................3 - 38 NP PCB ASSY (D6) assembly ......................3 - 38...
Page 10 Thread cutter module ..................3 - 59 Z pulse motor assembly attachment ....................3 - 60 Idle gears A and B attachment ......................3 - 61 Photo transistor ASSY assembly .....................3 - 61 Photo transistor assembly attachment ....................3 - 62 Thread cutter lever ASSY assembly ....................3 - 62 Thread cutter lever assembly attachment ..................3 - 62 Rubber attachment ...........................3 - 63 Thread hook ASSY assembly ......................3 - 63...
Page 11 Drop lever attachment ........................3 - 93 Drop knob attachment ........................3 - 94 Needle thread module ..................3 - 95 Drive gear A attachment ........................3 - 96 Idle gear A attachment ........................3 - 96 Rack ASSY assembly ........................3 - 97 Rack assembly attachment .......................3 - 98 TH pulse motor assembly attachment ....................3 - 99 ATTHD INIT PCB ASSY assembly ....................3 - 99 ATTHD INIT PCB assembly attachment ..................3 - 100...
Page 12 BHSW D6 SW assembly attachment .....................3 - 131 Presser dial attachment ........................3 - 131 Presser pulse motor holder ASSY assembly ..................3 - 132 Presser pulse motor holder assembly attachment ................3 - 132 Hook assembly attachment ......................3 - 133 Presser feed holder attachment ......................3 - 133 Main parts ......................3 - 134 Y sensor PCB assembly attachment ....................3 - 135 FFC cord guide attachment ......................3 - 135...
Page 13 Motor belt tension adjustment ................4 - 4 Upper shaft rotation shutter angle adjustment ...........4 - 5 Three point needle drop adjustment ..............4 - 6 Needle clearance left/right adjustment ..............4 - 7 Needle bar rising adjustment ................4 - 8 Needle bar height adjustment ................4 - 9 Needle threader adjustment ................4 - 10 Clearance between needle and rotary hook point adjustment ......4 - 11 Presser bar height and parallelism adjustment ..........4 - 12...
Page 14 Cannot sew button holes well ................5 - 12 Stitch length and zigzag width cannot be done by manual adjustment ...5 - 13 Problems with vertical needle movement and reverse stitching ......5 - 14 Does not operate when the foot controller is used ..........5 - 15 Needle bar cutting and separating does not occur normally ......5 - 16 Thread tensioning does not go well ..............5 - 17 Thread cutter does not work normally .............5 - 19...
Page 15 Outline of Mechanism Main Mechanisms ............ 1 - 2 Driveline ..............1 - 3 Positions of electronic components......1 - 4 Control system block diagram........1 - 5 Operation of other electronic components ....1 - 6 Using the threader............. 1 - 8 1 - 1...
Page 16 Outline of Mechanism Main Mechanisms Bobbin winder mechanism Thread guide mechanism Needle bar / Presser mechanism Upper shaft mechanism Side feed mechanism Rotary hook drive mechanism Thread cutting mechanism Feed / Rotary hook mechanism Y guide shaft X guide shaft X driving gear Y belt Y sensor PC board...
Page 17 Outline of Mechanism Driveline A) Up and down movement of needle bar, movement of thread take-up lever and zigzag mechanism Thread take-up Unit shaft Joint Upper shaft Pulley counter weight Needle bar crank Thread take-up lever Needle bar crank rod Needle bar block Needle bar Needle bar release lever...
Page 18 Outline of Mechanism Positions of electronic components PF PULSE MOTOR ASSY:PFSW D6 ASSY:BWSW D6 ASSY:THSW PCB D6 ASSY:ATPF INIT PCB VR PCB D6 ASSY:TGSW D6 BW MOTOR ASSY Z PULSE MOTOR LCD UNIT/TOUCH PANEL AT PULSE MOTOR SS PCB D6 PCB UNIT:LED LAMP-3 PCB UNIT:LED LAMP-D6R POWER SWITCH...
Page 19 Outline of Mechanism Control system block diagram 1 - 5...
Page 20 Outline of Mechanism Operation of other electronic components Start/Stop (SS) Switch ....Switch for starting and stopping the sewing machine. The machine operates at a slow speed while the switch is being held down.
Page 21 Outline of Mechanism Presser switch......This switch detects the vertical position of the presser foot lifter. BW (bobbin winder) switch ... . . When the bobbin thread is wound, this switch detects whether the bobbin is set for winding or not.
Page 22 Outline of Mechanism Using the threader The threader provided on this sewing machine is a device for making threading easy, but there are cases where it cannot be used because of the combination of sewing machine thread and needle type. At present, there are various types of sewing machine thread and sewing machine needles on the market for handling a variety of sewing conditions.
Page 23: Table Of Contents
Disassembly Main unit Main parts........2 - 2 Power unit, motor unit....2 - 18 Thread tension unit......2 - 24 Bobbin winder........ 2 - 35 Rotary hook driving unit, feed/rotary hook unit, thread cutter unit, side feed unit ..2 - 41 Needle-presser unit, needle threader unit, upper shaft unit ......
Page 24 Main unit Main parts location diagram 2 - 2...
Page 25: Main Unit Main Parts
Main unit Main parts Accessory table removal 1. Slide the accessory table 1 to the left, and remove it. Top cover removal 1. Turn the handle 1, and open the top cover 2. 2. Remove the top cover 2 from the hinge 3 of the main unit. Start movie clip (CD-ROM version only) Needle plate B assembly removal 1.
Page 26 Main unit Main parts Needle plate B ASSY disassembly 1. Slide the slide button 1 to the right, and then remove the needle plate cover 2. Reverse the needle plate B assembly 3. Press the tab 4 on the cutter cover with your finger, and then remove the cutter cover 5.
Page 27 Main unit Main parts NT lower cutter thread removal 1. Remove the retaining ring (CS5), and then remove the NT lower thread cutter 1. Retaining ring CS5 Front thread guide cover removal 1. Remove the screw 1, and then remove the front thread guide cover 1. Thread guide cover A removal 1.
Page 28 Main unit Main parts Free arm cover removal 1. Remove the screw 1 on the rear of the main unit, and then remove the free arm cover 1. *Key point • Remove the hook on the free arm cover from the front cover. Base plate cover removal 1.
Page 29 Main unit Main parts Front cover removal 1. Remove the screw 12, and then remove the front cover. *Key point • Remove the hooks 1 (2 locations) from the base plate and the hook 2 from the rear cover. 2. Disconnect the 2 lead wire connectors 3 from the main PCB of the front cover.
Page 30 Main unit Main parts Front cover disassembly (panel PCB connector removal) 1. Cut the band. 2. Remove all connectors from the panel PCB. Front cover disassembly (LED lamp R removal) Retaining ring CS4 1. Remove the retaining ring (CS4), and then remove LED lamp R 1. Front cover disassembly (LED lamp 3 removal) 1.
Page 31 Main unit Main parts Front cover disassembly (thread PCB assembly removal) 1. Remove the 2 screws 1, and then remove the thread PCB assembly 1. Front cover disassembly (SS PCB assembly removal) 1. Remove the 2 screws 1, and then remove the S holder 1. 2.
Page 32 Main unit Main parts Front cover disassembly (inverter D6 assembly removal) 1. Remove the 2 screws 1, and then remove the inverter D6 assembly 1. 2. Remove the clip inserted into the ferrite core 2 of the foot controller jack assembly.
Page 33 Main unit Main parts Front cover disassembly (board case assembly removal) 1. Remove the ferrite core 1 inserted under the clip held by the right screw 2. Remove the 4 screws 1, and then remove the upper board case assembly 3.
Page 34 Main unit Main parts Front cover disassembly (card PCB cover assembly removal) 1. Remove the card PCB cover 1. *Key point • Remove the hooks (2 locations) from the inside of the front cover. Front cover disassembly (connector cover removal) 1.
Page 35 Main unit Main parts Front cover disassembly (LCD holder assembly removal) 1. Remove the 4 screws 1. 2. Remove the hooks (2 locations) on the left side of the LCD holder assembly 1, and then remove the LCD holder assembly 1. Front cover disassembly (SV keytop removal) 1.
Page 36 Main unit Main parts Front cover disassembly (LCD assembly removal) 1. Remove the 4 screws 1, and then remove LCD presser B 1 (4 locations). 2. Remove the 2 screws 2, and then remove LCD presser A 2. 3. Remove LCDKCG089 3, and then disconnect the LCD cable (FFC: SML2CD) 4.
Page 37 Main unit Main parts Rear cover removal 1. Press down the presser foot lifter. 2. Remove the 3 screws 1, and then remove the rear cover 1. *Key point • Remove the hooks 2 (2 locations) from the base plate. Start movie clip (CD-ROM version only) Rear cover disassembly (plate B removal) 1.
Page 38 Main unit Main parts Rear cover disassembly (plate A removal) 1. Remove the 2 screws 1, and then remove plate A 1 (2 locations). Drop cover removal 1. Pull out the drop cover 1 from the rear of the main unit. Handle assembly removal 1.
Page 39 Main unit Main parts Handle ASSY disassembly Retaining ring E4 1. Remove the 2 retaining rings (E4), and then remove the handle holder R assembly 1 and handle holder L assembly 2 from the handle 3. 2 - 17...
Page 40 Main unit Power unit, motor unit location diagram 2 - 18...
Page 41: Power Unit, Motor Unit
Main unit Power unit, motor unit Power PCB assembly removal 1. Disconnect main PCB assembly 1 and all connectors from the power PCB assembly (D6US) 2. 2. Remove the 3 screws 1, and then remove the power PCB assembly (D6US) 2. Power PCB ASSY disassembly 1.
Page 42 Main unit Power unit, motor unit Base plate assembly removal 1. Remove the 3 screws 1, and then remove the base plate assembly 1. Inlet assembly removal 1. Remove the screw 1, and then remove the inlet assembly 1. Knee lifter assembly removal 1.
Page 43 Main unit Power unit, motor unit Embroidery unit connector assembly removal 1. Remove the 2 screws 1, and then remove the embroidery unit connector assembly 1. Main PCB assembly removal 1. Remove the 3 screws 1, clip (CS1) (right upper screw), and screw 2, and then remove the main PCB assembly 1.
Page 44 Main unit Power unit, motor unit Motor fan removal 1. Remove the motor fan. NOTE • Be careful removing the motor fan because the wings of the fan are very fragile. Main motor assembly removal 1. Remove the 2 screws 1, and then remove the main motor assembly 1 and PCB holder R 2.
Page 45 Main unit Power unit, motor unit Main motor assembly disassembly 1. Remove the screws 1 (two), and remove the main motor assembly 1 and the motor spacer presser 2. 2. Remove the fender rubber 3 from the motor holder 4. 3.
Page 46 Main unit Thread tension unit location diagram 2 - 24...
Page 47: Thread Tension Unit
Main unit Thread tension unit Thread guide assembly removal 1. Remove the lead wires from the hooks of upper shaft. 2. Remove the 2 screws 1, and then remove the thread guide assembly 1. Start movie clip (CD-ROM version only) Thread guide removal 1.
Page 48 Main unit Thread tension unit AT INIT PCB assembly removal 1. Remove the screw 1, and then remove the AT INIT PCB assembly 1. AT INIT PCB ASSY disassembly 1. Remove the screw 1, and then remove the AT INIT PCB assembly 1 from the AT pulse motor sensor holder 2.
Page 49 Main unit Thread tension unit Driving pulley removal 1. Remove the belt 1, and then remove the driving pulley 2 and the 2 rollers Start movie clip (CD-ROM version only) Belt guide removal 1. Remove the belt guide 1. *Key point •...
Page 50 Main unit Thread tension unit TG pulse motor assembly removal 1. Remove the 2 screws 1, and then remove the TG pulse motor assembly 2. Remove the TG pulse motor cover 2 and the idle gear 3. TG pulse motor ASSY disassembly 1.
Page 51 Main unit Thread tension unit AT pulse motor assembly removal 1. Remove the 2 screws 1, and then remove the AT pulse motor assembly 2. Disconnect the connector of the AT pulse motor lead wire assembly 2. Tension release holder assembly removal 1.
Page 52 Main unit Thread tension unit Presser SW holder ASSY removal and disassembly 1. Remove the screw 1, and then remove the presser SW holder assembly 2. Remove the presser SW assembly 2 from the presser SW holder 3. Spring removal 1.
Page 53 Main unit Thread tension unit Tension presser plate removal 1. Remove the screw 1, and then pull out the tension presser assembly 1 in the direction of the arrow. 2. Remove the tension release cam 2 and spring Start movie clip (CD-ROM version only) Tension plate removal Retaining ring E2 1.
Page 54 Main unit Thread tension unit Thread release link removal 1. Remove the retaining ring (E3), and then remove the thread release link 1. Retaining ring E3 2 - 32...
Page 55 Main unit Thread tension unit Thread tension gear assembly removal Retaining ring E3 1. Remove the retaining ring (E3), and then remove the thread tension gear assembly 1. 2. Loosen the tension adjusting screw 2, and then remove the tension plate assembly 3.
Page 56 Main unit Thread tension unit Thread take up spring assembly removal 1. Remove the screw 1, and then remove the thread take up spring assembly Thread take up spring ASSY disassembly 1. Remove spring 2. Remove the thread cutting shutter 1 from the thread catching spring case Thread guide wire removal 1.
Page 57 Main unit Bobbin winder location diagram 2 - 35...
Page 58: Bobbin Winder
Main unit Bobbin winder Tension guide assembly removal 1. Remove the screw 1, and then remove the tension guide assembly 1. Bobbin base assembly removal 1. Pull up the bobbin base assembly 1 to remove it. NOTE • Do not reuse the bobbin base assembly once it has been removed.
Page 59 Main unit Bobbin winder Sub spool stand pin removal 1. Remove the 2 screws 1, and then remove the sub spool pin holder assembly 1. 2. Remove the screw 2, and then remove the spring 2. 3. Remove the shaft 3, and then remove the sub spool stand pin 4. 2 - 37...
Page 60 Main unit Bobbin winder Spool pin removal 1. Remove the screw 1, and then remove the spool pin holder B assembly 2. Remove the spool pin 2. Bobbin winder assembly 1. Cut the band. 2. Remove the 3 screws 1, and then remove the bobbin winder assembly 1. 2 - 38...
Page 61 Main unit Bobbin winder Bobbin presser cover removal 1. Remove the screw 1. Reverse the bobbin winder assembly 1, and then remove the bobbin presser cover 2. BWSW assembly (D6) removal 1. Remove the screw 1, and then remove the BWSW assembly (D6) 1. 2.
Page 62 Main unit Bobbin winder Spring removal 1. Remove spring Bobbin presser guide assembly removal 1. Remove the retaining ring (E3), and then remove the bobbin presser guide assembly 1 and the polyester slider 2. Retaining ring E3 Bobbin presser removal Retaining ring E3 1.
Page 63: Rotary Hook Driving Unit, Feed/Rotary Hook Unit
Main unit Rotary hook driving unit, feed/rotary hook unit, thread cutter unit, side feed unit location diagram 2 - 41...
Page 64 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Lead wire guide holder removal 1. Remove the screw 1, and then remove the lead wire guide holder 1. Side feed module removal 1. Remove the 4 screws (12, 2 each), and then remove the side feed module *Key point •...
Page 65 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Feed/rotary hook module removal 1. Rotate the pulley (upper shaft) until the base line of the pulley comes to the top (needle bar is at the top point). 2.
Page 66 Main unit Needle-presser unit, needle threader unit, upper shaft unit location diagram 2 - 44...
Page 67: Needle-Presser Unit, Needle Threader Unit, Upper Shaft Unit
Main unit Needle-presser unit, needle threader unit, upper shaft unit Upper shaft cover removal 1. Remove the screw 1, and then remove the upper shaft cover 1. Tension pulley assembly removal 1. Remove the screw 1, and then remove the tension pulley assembly 1. 2 - 45...
Page 68 Main unit Needle-presser unit, needle threader unit, upper shaft unit Upper shaft assembly removal 1. Remove the 4 screws 1. Rotate the upper shaft half a turn and remove the 2 screws 2. 2. Remove the screw 3, and then remove the bushing presser 1. 3.
Page 69 Main unit Needle-presser unit, needle threader unit, upper shaft unit Needle-presser module removal 1. Remove the screw 1 on the rear of the module. 2. Remove the 2 screws 2, and then remove presser plate B 1, adjust plate A 2. 3.
Page 70 Main unit Needle-presser unit, needle threader unit, upper shaft unit Plate spring removal 1. Remove the 2 screws 1, and then remove the plate spring 1. Needle thread module removal 1. Remove the screw 1, and then remove the LED lamp PCB assembly (D6L) 1.
Page 71 Modules Needle-presser module location diagram 2 - 49...
Page 72: Modules Needle-Presser Module
Modules Needle-presser module Presser feed holder assembly removal 1. Loosen the screw 1, and then pull out the presser feed holder assembly 2. Press the black button on the rear of the presser feed holder assembly 1 to remove the Z foot 2. Hook assembly removal 1.
Page 73 Modules Needle-presser module Presser dial removal Retaining ring E4 1. Remove the retaining ring (E4), and then remove the presser dial 1. BHSW D6 SW assembly removal 1. Remove the screw 1, and then remove the BHSW D6 SW assembly 1. PT holder assembly removal 1.
Page 74 Modules Needle-presser module Lock nut removal 1. Remove the screw 1 with the lock nut 1 attached. 2. Remove the lock nut 1 from the screw 1. Zigzag adjusting nut removal 1. Remove the screw 1, and then remove the zigzag adjusting nut. Spring removal 1.
Page 75 Modules Needle-presser module Needle holder shaft block removal 1. Remove the screw 1 at the lower section of the unit holder, and then remove the needle holder shaft block 1 and needle holder block 2. Spring removal 1. Remove spring Spring removal 1.
Page 76 Modules Needle-presser module Needle holder assembly removal 1. Remove the screw 1, and then remove the plate 1. 2. Remove the screw 2, and then press the left end of the shaft 2 to remove the shaft from the right end. 3.
Page 77 Modules Needle-presser module Hook release plate removal 1. Remove the screw 1 on the rear of the needle holder assembly, and then remove the hook release plate 1. Release adjuster removal 1. Remove the 2 screws 1, and then remove the release adjuster 1. Release guide plate removal 1.
Page 78 Modules Needle-presser module Release lever assembly removal 1. Remove the screw 1, and then remove the release lever assembly 1. Release lever ASSY disassembly Retaining ring E2.5 1. Remove the release lever 2 from the release lever shaft 1. 2. Remove the thrust wafer 3 and the retaining ring (E2.5) from the release lever shaft 1.
Page 79 Modules Needle-presser module Needle bar ASSY disassembly 1. Remove the screw 1, and then remove the needle block supporter 1. 2. Loosen the screw 2, and then remove the needle bar thread guide 2 (plate spring 3) and needle block 4 from the needle bar. *Key point •...
Page 80 Modules Needle-presser module Lever AB assembly removal Retaining ring E2 1. Remove the retaining ring (E2) on the rear of the unit holder from the lever guide shaft 1. 2. Remove the screw 1, and then remove the lever supporter plate 2. 3.
Page 81 Modules Needle-presser module Adjust plate removal 1. Remove the screw 1, and then remove the adjust plate 1. Adjusting plate assembly removal 1. Remove the 2 screws 1, and then remove the adjusting plate assembly 1 and spring Adjusting plate ASSY disassembly 1.
Page 82 Modules Needle-presser module Release plate assembly removal 1. Remove the retaining ring (E2), and then remove the release plate assembly 1. Start movie clip (CD-ROM version only) Retaining ring E2 2 - 60...
Page 83 Modules Needle-presser module Press foot lifter removal Retaining ring E4 1. Remove the retaining ring (E4), and then remove the presser foot lifter 1 and 2 washers 2. 2. Pull out the presser lift shaft 3 from the rear of the adjusting plate assembly, and then remove the retaining ring (E4).
Page 84 Modules Needle-presser module Thread take-up lever assembly removal 1. Remove the screw 1, and then remove the thread take-up lever assembly *Key point • The screw 1 has a reverse helical flute thread. 2. Remove the 2 screws 2, and then remove the needle bar crank 2 and the needle bar crank rod 3.
Page 85 Modules Needle-presser module Z zigzag lever assembly removal 1. Remove the retaining ring (E3) on the rear of the Z zigzag lever assembly 1, and then remove the zigzag lever assembly 1. 2. Remove the Z lever cap 2 from the Z zigzag lever 1. *Key point •...
Page 86 Modules Needle-presser module Z zigzag cam removal Retaining ring E2 1. Remove the retaining ring (E2), and then remove the Z zigzag cam 1. Start movie clip (CD-ROM version only) Z pulse motor assembly removal 1. Remove the screw 1, and then remove the Z pulse motor assembly 1. *Key point •...
Page 87 Modules Needle-presser module Presser bar removal Retaining ring E5 1. Remove the screw 1 from the presser bar clamp assembly 1, and then pull the presser bar upward. 2. Remove the presser bar clamp assembly 1 and spring 3. Remove the retaining ring (E5) from the presser bar. 4.
Page 88 Modules Needle-presser module Thread take-up lever link removal 1. Remove the screw 1. 2. Remove the retaining ring (E4). *Key point • Move spring to the thread take-up lever link 2. 3. Pull out the shaft 1, and then remove spring and the thread take-up lever link 2.
Page 89 Modules Needle thread module location diagram 2 - 67...
Page 90: Needle Thread Module
Modules Needle thread module Pile holder assembly removal 1. Remove the screw 1, and then remove the pile holder assembly 1. Thread guide base plate assembly removal 1. Remove the screw 1, and then remove the thread guide base plate assembly 1.
Page 91 Modules Needle thread module Thread guide base plate disassembly Retaining ring E3 1. Remove the screw 1 and the retaining ring (E3), and then remove the link A base assembly 1 and spring 2. Remove the retaining ring (E2) on the rear of the base plate, and then remove the link plate A assembly 2.
Page 92 Modules Needle thread module ATTHD INIT PCB assembly removal 1. Remove the screw 1, and then remove the ATTHD INIT PCB assembly ATTHD INIT PCB ASSY disassembly 1. Remove the screw 1, and then remove the ATTHD INIT PCB assembly 1 from the sensor holder 2.
Page 93 Modules Needle thread module Rack assembly remove Retaining ring E3 1. Remove the retaining ring (E3) from the inside of the guide shaft 1, and then pull out the guide shaft 1 to the right. 2. Remove the retaining ring (E3) from the outside of the guide shaft 1. 3.
Page 94 Modules Needle thread module Idle gear A removal Retaining ring 2.5 1. Remove the retaining ring (E2.5), and then remove idle gear A 1. Drive gear A removal 1. Remove drive gear A 1. 2 - 72...
Page 95 Modules Feed/rotary hook module location diagram 2 - 73...
Page 96: Feed/Rotary Hook Module
Modules Feed/rotary hook module Drop knob removal Retaining ring E3 1. Remove the screw 1, and then remove the plate spring 1. 2. Remove the retaining ring (E3), and then remove the drop knob 2. Drop lever removal 1. Remove the retaining ring (E2) on 2 slide shafts A 1 from the rear of the drop lever 2.
Page 97 Modules Feed/rotary hook module Needle plate A disassembly 1. Remove the 2 screws 1, and then remove the stopper plates 1 and 2. Inner rotary hook bracket assembly removal 1. Remove the screw 1, and then remove the inner rotary hook bracket assembly 1.
Page 98 Modules Feed/rotary hook module Photo diode holder assembly removal 1. Remove the screw 1, and then remove the photo diode holder assembly Photo diode holder ASSY disassembly 1. Remove the photo diode holder assembly 1 from the photodiode holder *Key point •...
Page 99 Modules Feed/rotary hook module Outer rotary hook removal 1. Remove the screw 1, and then remove the outer rotary hook shaft 1. *Key point • Press the bottom of the outer rotary hook shaft 1, and then pull the outer rotary hook shaft 1 out from the outer rotary hook assembly.
Page 100 Modules Feed/rotary hook module Spring removal 1. Remove spring Feed bar assembly removal 1. Remove the 2 screws 1, and then pull out 2 feed bar shafts A 1. 2. Remove the feed bar assembly 2. Start movie clip (CD-ROM version only) Feed dog base assembly removal 1.
Page 101 Modules Feed/rotary hook module Feed dog correction plate removal 1. Remove the screw 1, and then remove the feed dog correction plate 1. Vertical adjusting screw removal 1. Remove the screw 1, and then remove the M5 nut 1. 2. Remove the cap 2 from the bottom of the screw 1. Vertical rod removal 1.
Page 102 Modules Feed/rotary hook module Vertical feed bush removal 1. Remove the 2 screws 1, and then remove the vertical feed bush 1. Spring removal 1. Remove spring F gear stopper plate removal 1. Remove the screw 1, and then remove the F gear stopper plate 1. *Key point •...
Page 103 Modules Feed/rotary hook module F pulse motor holder assembly removal 1. Remove the screws 1 and 2, and then remove spring and the F pulse motor assembly 1. F pulse motor holder ASSY disassembly 1. Disconnect the F pulse motor lead wire assembly 2 from the pulse motor (M35SP-8N) 1.
Page 104 Modules Feed/rotary hook module Shaft stopper plate removal 1. Remove the screw 1, and then remove the shaft stopper plate 1. Set screw collar removal 1. Remove the screw 1, and then remove the set screw collar 1. Feed arm assembly removal Retaining ring E5 1.
Page 105 Modules Feed/rotary hook module Feed arm ASSY disassembly Retaining ring E3 1. Remove the retaining ring (E3), and then remove the polyester slider 2 and the feed arm B assembly 3 from feed arm A 1. 2. Remove the retaining ring (E2), and then remove the feed supporting plate 5 from feed arm B 4.
Page 106 Modules Feed/rotary hook module Lower shaft B ASSY disassembly 1. Remove the retaining ring (E6), and then remove the screw 1 of the set screw collar 1. 2. Remove the thrust washer 3, lower shaft bushing 4, thrust washer 3, and set screw collar 1 from the lower shaft B assembly 2.
Page 107 Modules Feed/rotary hook module Drop assembly removal 1. Remove the 2 screws 1, and then remove the drop assembly 1 from the bottom. Drop ASSY disassembly Retaining ring E3 1. Remove the screw 1 to free the set screw collar 1. 2.
Page 108 Modules Feed/rotary hook module Feed adjuster assembly removal 1. Remove the 2 screws 1, and then remove the bushing supporter assembly 1, feed adjuster assembly 2, and spring Start movie clip (CD-ROM version only) Feed adjuster ASSY disassembly 1. Remove the polyester slider 2 from the adjusting shaft 1. 2.
Page 109 Modules Side feed module location diagram 2 - 87...
Page 110: Side Feed Module
Modules Side feed module Side feed arm assembly removal 1. Remove the screw 1, and then remove plate spring A 1 and the side feed arm assembly 2. Side feed adjust plate removal 1. Remove the screw 1, and then remove plate spring B 1, the washer 2, and side feed adjust plate 3.
Page 111 Modules Side feed module Side feed gear removal 1. Remove the rubber 1. 2. Remove the screw 1, and then remove the S stopper 2. 3. Slide the S gear 3 to disengage it from the S pulse motor gear 4. 4.
Page 112 Modules Thread cutter module location diagram 2 - 90...
Page 113: Thread Cutter Module
Modules Thread cutter module Thread cutter frame assembly removal 1. Cut the band. 2. Remove the 2 screws 1, then remove the thread cutter frame assembly 1 from the motor holder assembly 2, and then remove the collar. Presser plate assembly removal 1.
Page 114 Modules Thread cutter module Thread hook ASSY disassembly Retaining ring E4 1. Remove the retaining ring (E4), and then remove the washer 1 and the polyester slider 2. 2. Reverse the thread cutter frame 3, and then remove the thread hook assembly 4 and the spacer 5.
Page 115 Modules Thread cutter module Thread cutter lever assembly removal 1. Slide the thread cutter lever assembly 1 to remove it from the idle gear 2, and then remove it from the thread cutter lever shaft 3. Thread cutter lever ASSY disassembly 1.
Page 116 Modules Thread cutter module Idle gears A and B removal Retaining ring E2 1. Remove the retaining ring (E2), and then remove idle gear A 1, spring 2, and idle gear B 3. Z pulse motor assembly removal 1. Disconnect the lead wire connector 2 from the PCB of the Z pulse motor assembly 1.
Page 117 Embroidery Main parts location diagram 2 - 95...
Page 118: Embroidery Main Parts
Embroidery Main parts YPM cover removal 1. Position the embroidery unit assembly with the main unit attachment section 1 on the right. 2. Remove the screw 1, and then remove the YPM cover 2. *Key point • Remove the screw 1 from the lower section 3 of the YPM cover.
Page 119 Embroidery Main parts X carriage cover removal 1. Position the embroidery unit assembly with the main unit attachment section 1 on the left. 2. Remove the screw 1, and then remove the X carriage cover 2. *Key point • Remove the screw 1 from the front of the indicated section 3 of the X carriage cover.
Page 120 Embroidery Main parts ES main cover assembly removal 1. Remove the 10 screws 1x5 and 2x5, and then remove the ES main cover assembly 1. *Key point • Remove the screws 1, 2 from the bottom of the ES base cover assembly 2.
Page 121 Embroidery Main parts ES base cover assembly removal 1. Remove the 2 screws 1, and then remove the ES base cover assembly 1. *Key point • Remove the main frame assembly 2, and then remove the ES base cover assembly. Lock release lever assembly removal 1.
Page 122 Embroidery Main parts Drop lever ASSY disassembly 1. Remove the screw 1, and then remove the drop notched plate 1. 2. Pull out the drop lever calking assembly 2. *Key point • Disengage the hook at the upper section of the notched cam 3.
Page 123 Embroidery Main parts EMB relay PCB assembly removal 1. Remove the 3 screws 1, and then remove the EMB relay PCB assembly 2. Disconnect the 5 connectors from the EMB relay PCB assembly 1. E cord supporter cord removal 1. Disconnect the bundle of three cords from the E cord supporter 1. E cord supporter removal 1.
Page 124 Embroidery Main parts X sensor PCB assembly cord removal 1. Slide the X carriage assembly 1 of the main frame assembly to the right as far as possible. 2. Cut the band from the left hook 2 on the bottom of the main frame, and then disconnect the lead wire of the X sensor PCB assembly 3.
Page 125 Embroidery Main parts XY carriage unit removal 1. Remove the 2 screws 1 on both ends of the X guide shaft 1. 2. Hold both ends of the X guide shaft 1, and rotate it toward you. 3. Lift the right end of the X guide shaft 1 upward at an angle to remove it, and then remove the XY carriage unit 2 from the main frame assembly 4.
Page 126 Embroidery Main parts X pulse motor removal 1. Remove the 2 screws 1, and then remove the X pulse motor assembly 1. 2. Remove the XPM lead wire assembly 2 from the X pulse motor. X tension pulley assembly removal 1.
Page 127 Embroidery Main parts X guide shaft presser removal 1. Remove the X guide shaft presser 1. 2. Remove the 2 screws 1, and then remove the X guide shaft presser plate X slider removal 1. Disconnect the 3 cords hanging over the guide on the X slider 1. 2.
Page 128 Embroidery Main parts YPM lead wire assembly removal 1. Remove the YPM lead wire assembly 1 from the connector of the Y pulse motor 2. Cord clip removal 1. Slide the left and right cord clips 1 to the right to remove them. 2.
Page 129 Embroidery Main parts FFC support assembly removal 1. Remove the 2 screws 1, and then remove the FFC support assembly 1. 2. Disconnect the FFC cord 2 from the connector of the frame PCB assembly. FFC support ASSY disassembly 1. Remove the FFC cord 2 from the FFC support 1. E hoop presser plate assembly removal 1.
Page 130 Embroidery Main parts E hoop stay plate ASSY disassembly 1. Remove the 2 screws 1, and then remove E hoop presser spring A 1. 2. Remove the screw 1, and then remove E hoop presser spring C 2. E hoop stay plate ASSY disassembly 1.
Page 131 Embroidery Main parts Y tension pulley assembly removal 1. Remove the 2 screws 1, and then remove the tension pulley assembly 1. 2. Remove the timing belt (Y belt ) 2. Y slider assembly removal 1. Remove the screw 1, and then remove the YT belt presser plate 1 and the timing belt (Y belt) 2 from the Y slider 3.
Page 132 Embroidery Main parts Y sensor PCB assembly removal 1. Remove the screw 1, and then remove the Y sensor PCB assembly 1. 2 - 110...
Page 133 Assembly Main unit Needle-presser unit, needle threader unit, upper shaft unit ......3 - 2 Rotary hook driving unit, feed/rotary hook unit, thread cutter unit, side feed unit ..3 - 8 Bobbin winder unit ......3 - 14 Thread tension unit......3 - 22 Power unit, motor unit....
Page 134 Main unit Needle-presser unit, needle threader unit, upper shaft unit location diagram 3 - 2...
Page 135 Main unit Needle-presser unit, needle threader unit, upper shaft unit Needle thread module attachment 1. Attach the needle thread module 1 to the needle-presser module 2 with the 3 screws 1. *Key point • Hang the trigger plate 3 of the needle thread module over the needle thread driving plate 4 of the needle-presser module.
Page 136: Main Unit Needle-Presser Unit, Needle Threader Unit, Upper Shaft Unit
Main unit Needle-presser unit, needle threader unit, upper shaft unit Needle-presser module attachment Retaining ring E5 1. Attach the retaining ring (E5) to the shaft 1. 2. Insert the shaft 1 into the shaft hole on the needle-presser module (left side).
Page 137 Main unit Needle-presser unit, needle threader unit, upper shaft unit Upper shaft assembly attachment 1. Apply 1 or 2 drops of Turbine Oil #100 to the upper shaft bushing attachment section 1, and then move the upper shaft bushing 2 to the lubricated section.
Page 138 Main unit Needle-presser unit, needle threader unit, upper shaft unit Needle-presser module and upper shaft assembly connection 1. Face the shaft 1 and the upper shaft D-cut 2 of the needle-presser module to the front. 2. Slide the fixed joint 3 to the left, and then insert it into the shaft 1 of the needle-presser module.
Page 139 Main unit Needle-presser unit, needle threader unit, upper shaft unit Upper shaft cover attachment 1. Attach the upper shaft cover 1 to the arm bed with the screw 1. Torque Screw, Bind M4X6 · 0.79 – 1.18 N Color; Silver 3 - 7...
Page 140: Rotary Hook Driving Unit, Feed/Rotary Hook Unit, Thread Cutter Unit, Side Feed Unit
Main unit Rotary hook driving unit, feed/rotary hook unit, thread cutter unit, side feed unit location diagram 3 - 8...
Page 141 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Lower shaft A assembly attachment 1. Rotate the pulley (upper shaft) 1 until the base line 2 of the pulley comes to the top. 2. Apply 1 or 2 drops of Turbine Oil #100 to the lower shaft bushing attachment sections 3 (2 locations), and then move the lower shaft bushing 4 to the lubricated section.
Page 142 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Tension pulley assembly attachment 1. Temporarily secure the tension pulley assembly 1 to the arm bed with the screw 1. Adjust the timing belt tension, and then fully tighten the screw 1. *Key point •...
Page 143 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Feed/rotary hook module attachment 1. Joint 1 of the feed/rotary hook module until the D-cut 2 of lower shaft B. 2. Apply a bead of EPNOC AP(N) 0 to the slit 3 on both joints of lower shaft A and lower shaft B.
Page 144 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Thread cutter module attachment 1. Attach the thread cutter module to the feed/rotary hook module with the screws 1 and 2 on the bottom of the thread cutter module. *Key point •...
Page 145 Rotary hook driving unit, feed/rotary hook unit, thread Main unit cutter unit, side feed unit Lead wire guide holder attachment 1. Attach the lead wire guide holder 1 to the feed/rotary hook module with the screw 1. *Key point • Engage the positioning tab on the lead wire guide holder with the positioning hole on the feed/rotary hook module.
Page 146 Main unit Bobbin winder unit location diagram 3 - 14...
Page 147: Bobbin Winder Unit
Main unit Bobbin winder unit BW motor assembly attachment 1. Attach the BW motor assembly 1 to the bobbin winder holder assembly 2 with the 3 screws 1. *Key point • Insert the shaft of the BW motor assembly into the groove on the bobbin winder holder assembly.
Page 148 Main unit Bobbin winder unit Spring attachment 1. Reverse the bobbin winder assembly 1. 2. Attach spring to the shaft groove 2 of the bobbin presser guide assembly and the notch 3 of the bobbin winder holder assembly. *Key point •...
Page 149 Main unit Bobbin winder unit Bobbin presser cover attachment 1. Attach the bobbin presser cover 1 to the bobbin winder holder assembly 2 with the screw 1. *Key point • Engage the positioning tab on the bobbin presser cover with the positioning hole on the bobbin winder holder assembly.
Page 150 Main unit Bobbin winder unit Spool pin attachment 1. Place the shaft hole on the spool pin 1 on the rear of the upper cover. 2. Insert the shaft of spool pin holder assembly B 2 into the hole on the spool pin 1.
Page 151 Main unit Bobbin winder unit Sub spool stand pin attachment 1. Attach the plate spring 1 to the sub spool pin holder 2 with the screw 1. *Key point • Engage the positioning tab on the sub spool pin holder with the positioning hole on the plate spring.
Page 152 Main unit Bobbin winder unit Thread guard plate attachment 1. Insert the thread guard plate 1 into the groove on the side face of the upper cover. 2. Attach the thread guard plate 1 with the screw 1. *Key point •...
Page 153 Main unit Bobbin winder unit Bobbin base assembly attachment 1. Place the bobbin base assembly 1 onto the bobbin winder shaft 2, and push it until you hear a click. *Key point • Engage the tab on the bobbin winder shaft assembly with the notch on the bobbin base assembly.
Page 154 Main unit Thread tension unit location diagram 3 - 22...
Page 155: Thread Tension Unit
Main unit Thread tension unit Spring tape attachment 1. Attach the spring tape 1 along the R-section of the thread guard. *Key point • Do not allow the spring tape to protrude from the thread guard. Thread guide wire attachment 1.
Page 156 Main unit Thread tension unit Thread take up spring ASSY assembly 1. Apply a light covering of silicon grease to the outer and inner peripheries of spring 2. Insert the thread cutting shutter 2 into the thread catching spring case 1. 3.
Page 157 Main unit Thread tension unit Thread tension gear assembly attachment 1. Place tension disk A 2 and tension disk B 3 onto the thread tension disk shaft 1 of the thread guard. 2. Place the plain washer (S3) and spring 5 onto the calking pin 4 of the thread guard.
Page 158 Main unit Thread tension unit Thread release link attachment 1. Insert the thread release link 1 into the pin of the tension release holder 2, and attach the retaining pin (E3). Retaining ring E3 Tension plate attachment 1. Place the spacer 1 on the tension release holder assembly 2. *Key point •...
Page 159 Main unit Thread tension unit Tension presser plate attachment 1. Attach the screw 1 to the tension presser plate 1. *Key point • Tighten the screw 1 until it protrudes from the bottom of the tension presser plate 0.2 - 0.5 mm. 2.
Page 160 Main unit Thread tension unit Spring attachment 1. Attach spring to the round hole on the presser SW link 1 and the notch on the tension release holder assembly 2. *Key point • Attach spring with the smaller hook over the presser SW link and the larger hook over the tension release holder assembly.
Page 161 Main unit Thread tension unit Initial SW holder ASSY assembly and attachment 1. Attach the initial SW assembly 1 to the initial SW holder 2. *Key point • Insert the positioning tab on the initial SW assembly into the groove on the initial SW holder. 2.
Page 162 Main unit Thread tension unit AT pulse motor assembly attachment 1. Apply 1 or 2 drops of Turbine oil #100 to the shaft of the AT pulse motor assembly 1. 2. Insert the AT pulse motor lead wire assembly 3 to the connector of the AT pulse motor assembly 2.
Page 163 Main unit Thread tension unit TG pulse motor assembly attachment 1. Place the idle gear 1 onto the calking shaft of the TG pulse motor holder . *Key point • Place the idle gear with the tab facing up. 2. Attach the TG pulse motor cover 2 to the TG pulse motor holder. *Key point •...
Page 164 Main unit Thread tension unit Belt guide attachment 1. Apply 1 drop of SHINETSU silicon KF-96-100CS to the oscillating section of the belt guide's belt and rollers. 2. Attach the belt guide 1 to the thread guard with the screw 1. *Key point •...
Page 165 Main unit Thread tension unit Thread guide base attachment 1. Attach the thread guide base to the thread guard assembly with the 3 screws *Key point • Engage the 2 positioning tabs on the belt guide with the TG pulse motor shaft and the thread guide base positioning hole. •...
Page 166 Main unit Thread tension unit AT INIT PCB assembly attachment 1. Attach the AT INIT PCB assembly 1 to the thread guard assembly with the screw 1. *Key point • Engage the positioning tab on the thread guard with the positioning hole on the AT INIT PCB assembly.
Page 167 Main unit Thread tension unit Upper thread PCB assembly attachment 1. Attach the upper thread PCB assembly 1 to the thread guard assembly with the screw 1. *Key point • Engage the positioning tab on the thread guard assembly with the positioning hole on the upper thread PCB assembly.
Page 168 Main unit Thread tension unit Thread guide assembly attachment 1. Attach the thread guide assembly to the needle-presser module with the 2 screws 1. *Key point • Engage the positioning tab on the needle-presser module with the positioning hole on the thread guide assembly. •...
Page 169 Main unit Power unit, motor unit location diagram 3 - 37...
Page 170: Power Unit, Motor Unit
Main unit Power unit, motor unit Main motor assembly attachment 1. Hang the timing belt over the timing pulley 1 of the upper shaft and the pulley 2 of the motor. 2. Set the main motor assembly 3 onto the arm bed, and then tighten the upper screw 1 temporarily.
Page 171 Main unit Power unit, motor unit NP PCB assembly attachment 1. Attach the NP PCB assembly (D) 1 to the arm bed with the 3 screws 1. NOTE • Attach the NP PCB assembly (D6) carefully to avoid damaging the sensor on the rear of the assembly. •...
Page 172 Main unit Power unit, motor unit Embroidery unit connector assembly attachment 1. Attach the embroidery unit connector assembly 1 to the base plate 2 with the 2 screws 1. Screw, Bind Torque M4X6 · 0.79 – 1.18 N Color; Silver Knee lifter assembly attachment 1.
Page 173 Main unit Power unit, motor unit Base plate assembly attachment 1. Attach the base plate assembly 1 to the arm bed with the 3 screws 1. Taptite, Bind S Torque M4X10 · 1.47 – 1.96 N Color; Gold Power PCB ASSY (D6US) assembly 1.
Page 174 Main unit Power unit, motor unit Power PCB assembly (D6US) attachment 1. Attach the power PCB assembly (D6US) 1 to the arm bed with the 3 screws 1. NOTE • Be careful not to pinch the inlet cord and motor cord. 2.
Page 175 Main unit Main parts location diagram 3 - 43...
Page 176: Main Parts
Main unit Main parts Handle assembly Retaining ring E4 1. Attach the handle holder R assembly 1 to the inside of the handle 2, and then attach the retaining ring (E4). 2. Attach the handle holder L assembly 3 to the outside of the handle 2, and then attach the retaining ring (E4).
Page 177 Main unit Main parts Rear cover assembly (plate B attachment) 1. Attach plate B 1 to the inside of the rear cover with the screw 1. *Key point • Engage the positioning tab on the rear cover with the positioning hole on plate B. Taptite, Cup B Torque M4X10...
Page 178 Main unit Main parts Front cover assembly (LCD ASSY attachment) 1. Place the touch panel 1 in the LCD holder 3, with the lead wire 2 of the touch panel 1 on the left side. 2. Attach front cover spacer B 4 (2 locations) to LCDKCG089 5, and then remove the transparent film from the LCD.
Page 179 Main unit Main parts Front cover assembly (SV keytop attachment) 1. Attach the SV joint plate 1 to the rear of the front cover. 2. Attach the SV keytop 2 to the hole on the SV joint plate 1 from outside the front cover.
Page 180 Main unit Main parts Front cover assembly (foot controller jack assembly attachment) 1. Attach the foot controller jack assembly 1 to the rear of the front cover. *Key point • Position the mark on the foot controller jack assembly 1 face 2.
Page 181 Main unit Main parts Front cover assembly (board case attachment) 1. Attach the lower ground plate 1 to the lower board case 2 with the screw 2. Attach the upper ground plate 3 to the upper board case. 3. Place the lower board case assembly 2 on the board attachment section inside the front cover.
Page 182 Main unit Main parts Front cover assembly (inverter D6 assembly attachment) 1. Attach inverter D6 1 to the inverter cover 2 with the 2 screws 1. *Key point • Tighten the screws 1 in the following order: 1-1 (temporarily tighten), 1-2 (fully tighten), and 1-1 (fully tighten). 2.
Page 183 Main unit Main parts Front cover assembly (SS PCB assembly attachment) 1. Attach the SS PCB assembly 1 to the SS button on the rear of the front cover with the 2 screws 1. *Key point • Insert each switch section on the SS PCB assembly 1 into the SS button.
Page 184 Main unit Main parts Front cover assembly (VR PCB assembly attachment) 1. Align the screw hole on plate C 1 with that on the VR PCB 2. 2. Attach the VR PCB assembly 2 to the inside of the front cover with the 2 screws 1.
Page 185 Main unit Main parts Front cover assembly (panel PCB connector attachment) 1. Connect the connectors to the corresponding positions on the panel PCB *Key point • Refer to "Wiring procedures". 2. Tie the lead wires with a band. 3 - 53...
Page 186 Main unit Main parts Front cover attachment 1. Connect the panel PCB's two lead wire connectors 1 to the main PCB 2. 2. Attach the front cover with the screws 1 and 2. *Key point • Hang the hooks 3 of the front cover (2 locations) over the base plate.
Page 187 Main unit Main parts Bobbin winder attachment 1. Connect the 2 lead wire connectors 2 of the bobbin winder 1to the main PCB. 2. Attach the bobbin winder 1 with the 5 screws 1 and 1 screw 2. *Key point •...
Page 188 Main unit Main parts Lower thread cutter attachment 1. Place the lower thread cutter 1 onto the cutter holder 2. 2. Place the cutter holder assembly onto the thread guide cover A assembly 3. Secure the cutter holder assembly to the thread guide cover A assembly 3 with the screw 1.
Page 189 Main unit Main parts Face plate assembly attachment 1. Attach the face plate assembly 1 to the arm bed via the screw hole on the rear cover, and secure it with the screw 1. *Key point • Insert the shaft of the needle-presser module into the positioning hole inside the face plate assembly.
Page 190 Main unit Main parts Top cover attachment 1. Engage the tab 2 on the left of the top cover 1 with the top cover attachment hole. 2. Press the top cover 1 to the hinge 3 of the main unit to attach it. Accessory table attachment 1.
Page 191 Module Thread cutter module location diagram 3 - 59...
Page 192 Module Thread cutter module Z pulse motor assembly attachment 1. Attach the Z pulse motor assembly 1 to the motor holder assembly 2 with the 2 screws 1. *Key point • Position the Z pulse motor assembly so that the PCB is at the lower right section.
Page 193: Module Thread Cutter Module
Module Thread cutter module Idle gears A and B attachment 1. Apply a small amount of Epnoc Grease AP to the idle gear shaft 1. 2. Attach idle gear A 2, the spring 3 and idle gear B 4 to the idle gear shaft 1, and attach retaining ring E2.
Page 194 Module Thread cutter module Photo transistor assembly attachment 1. Attach the photo transistor assembly 1 to the motor holder assembly 2 with the screw 1. *Key point • Pass the lead wire through the groove 4 on the sensor holder below the photo transistor assembly 3.
Page 195 Module Thread cutter module Rubber attachment 1. Place the rubber 1 onto the shaft 3 on the rear of the thread cutter frame 2, and then attach the retaining ring (E3). Start movie clip (CD-ROM version only) Retaining ring E3 Thread hook ASSY assembly 1.
Page 196 Module Thread cutter module Pile (4X8) attachment 1. Wipe the pile (4X8) attachment surface of the presser plate 1with a cloth dampened with alcohol. 2. Attach the pile (4X8) 2 to the presser plate 1. Presser plate assembly attachment 1. Attach the presser plate 1 and the plate spring 2 to the thread cutter frame 3 with the screw 1.
Page 197 Module Thread cutter module Thread cutter frame assembly attachment 1. Insert the 2 collars 3 between the thread cutter frame assembly 1 and the motor holder assembly 2. *Key point • Insert the collars into the screw holes. 2. Attach the thread cutter frame assembly 1 to the motor holder assembly 2 with the 2 screws 1.
Page 198 Module Side feed module location diagram 3 - 66...
Page 199: Side Feed Module
Module Side feed module S pulse motor attachment 1. Attach the S pulse motor assembly 1 to the S pulse motor holder 2 with the 2 screws 1. *Key point • Position the S pulse motor assembly so that the PCB is at the upper right section.
Page 200 Module Side feed module Side feed gear attachment 1. Place the side feed washer 1 onto the calking shaft 3 of the S pulse motor holder assembly 2. 2. Place the side feed washer 1 onto the calking shaft 3 of the S pulse motor holder assembly 2.
Page 201 Module Side feed module Side feed adjust plate attachment 1. Apply a bead of MOLYKOTE EM-30L to the shaft hole on the edge of the side feed adjust plate 1. 2. Attach plate spring B 2 and then the washer 3 to the screw 1. 3.
Page 202 Module Feed/rotary hook module location diagram 3 - 70...
Page 203: Feed/Rotary Hook Module
Module Feed/rotary hook module Bushing presser B attachment 1. Attach the lower shaft bushing 1 to the bushing supporter assembly 2. 2. Apply 1 or 2 drops of Turbine oil #100 to the sphere of the lower shaft bushing 1. 3.
Page 204 Module Feed/rotary hook module Feed adjuster assembly attachment 1. Place spring onto the shaft of the feed adjuster 1. *Key point • Place spring from the end with the smaller diameter. 2. Apply a small bead of EPNOC AP (N)0 to the shaft of the feed adjuster 1. 3.
Page 205 Module Feed/rotary hook module Drop ASSY assembly 1. Attach the retaining ring (E3) to the outer groove on the vertical feed shaft 1, and then place the polyester slider 2 onto the shaft. 2. Insert the vertical feed shaft 1 into the right shaft hole on the vertical supporting plate 3.
Page 206 Module Feed/rotary hook module Drop assembly attachment 1. Attach the drop assembly 1 to the inside of the base plate with the 2 screws 1. *Key point • Engage the 2 positioning tabs on the vertical supporting plate of the drop assembly with the corresponding positioning holes on the base plate.
Page 207 Module Feed/rotary hook module Lower shaft B ASSY assembly 1. Attach the set screw collar 4, thrust wafer 3, lower shaft bushing 4, and thrust washer 3 to the shorter shaft of the lower shaft B assembly 1 in this order, and then attach the retaining ring (E6). *Key point •...
Page 208 Module Feed/rotary hook module Lower shaft B assembly attachment 1. Attach bushing supporter A 1 to the base plate. *Key point • Engage the 2 positioning tabs on bushing supporter A with the corresponding positioning holes on the base plate. 2.
Page 209 Module Feed/rotary hook module Drop assembly adjustment 1. Loosen the screw 1 to free the set screw collar 1, and then move the vertical lever 2. *Key point • Move the vertical lever 2 until the cam contact section 4 of the vertical lever is directly above the vertical feed cam 3 of the lower shaft B assembly.
Page 210 Module Feed/rotary hook module Feed arm ASSY assembly 1. Apply 1 or 2 drops of Turbine oil #100 to the shaft 2 of the feed supporting plate assembly 1. 2. Place the feed arm B assembly 3 onto the shaft 2 of the feed supporting plate assembly 1, and then attach the retaining ring (E2).
Page 211 Module Feed/rotary hook module Feed arm assembly attachment 1. Insert the feed arm assembly 1 from the bottom. *Key point • Insert the feed rectangular side shaft 3 of feed arm B 2 into the feed adjuster 4 on the top side. 2.
Page 212 Module Feed/rotary hook module Shaft stopper plate attachment 1. Attach the shaft support plate 1 to the base plate with the screw 1. *Key point • Engage the positioning tab on the shaft support plate with the positioning hole on the base plate. Screw, Bind Torque M3X5...
Page 213 Module Feed/rotary hook module F pulse motor holder assembly attachment 1. Lift the F gear of the feed adjuster 1. 2. Place the F pulse motor holder assembly 2 in the bushing of bushing supporter B 3. 3. Place spring between the F pulse motor holder 4 and the base plate 5, and tighten the screw 1.
Page 214 Module Feed/rotary hook module F gear adjustment 1. Apply a small bead of EPNOC AP (N)0 to the gear surface of the feed adjuster 1. 2. Rotate the gear 4 of the F pulse motor clockwise until the stopper 3 of the F pulse motor contacts the shaft 2 (with the rubber mounted).
Page 215 Module Feed/rotary hook module Spring attachment 1. Attach spring to the spring holes on the base plate 1 and the FPM holder 2. Start movie clip (CD-ROM version only) 19.8 SPRING XC2538*** Vertical feed bush attachment 1. Attach the vertical feed bush 1 to the base plate with the 2 screws 1. *Key point •...
Page 216 Module Feed/rotary hook module Vertical adjusting screw attachment 1. Attach the M5 nut 2 to the vertical adjusting screw 1. *Key point • Rotate the M5 nut until it is approximately 1.5 mm from the top end of the vertical adjusting screw 1. 2.
Page 217 Module Feed/rotary hook module Feed dog correction plate attachment 1. Attach the feed dog correction plate 1 to the feed dog base assembly 2 with the screw 1. *Key point • Move the feed dog correction plate upward to attach it. Start movie clip (CD-ROM version only) Screw Torque...
Page 218 Module Feed/rotary hook module Feed dog base assembly attachment 1. Apply a small bead of MOLYKOTE EM-30L to the shaft holes at the right and left ends of the feed bar 1. 2. Attach the polyester slider 3 to the inside of the feed bar 1 on the left side, and then place the feed dog base assembly 2 in the feed bar 1.
Page 219 Module Feed/rotary hook module Feed bar assembly attachment 1. Apply a small bead of MOLYKOTE EM-30L to the hole on the feed shaft 2 of the feed bar 1. 2. Place the feed bar 3 in the base plate assembly. 3.
Page 220 Module Feed/rotary hook module Spring attachment 1. Attach spring to the feed bar 1 and the vertical feed shaft 2. Start movie clip (CD-ROM version only) 23.4 SPRING XZ0385*** 3 - 88...
Page 221 Module Feed/rotary hook module Outer rotary hook attachment 1. Apply a bead of MOLYKOTE EM-30L to the outer rotary hook attachment face of the shaft supporter 1. 2. Apply a small bead of EPNOC AP (N)0 to the groove on the outer rotary hook shaft 2.
Page 222 Module Feed/rotary hook module Feed dog attachment 1. Attach the feed dog 1 to the feed dog base with the 2 screws 1. Start movie clip (CD-ROM version only) Screw, Bind Torque M3X6 · 0.78 – 1.18 N Color; Silver Needle plate A assembly 1.
Page 223 Module Feed/rotary hook module Photo diode holder ASSY assembly 1. Engage the photo diode holder assembly 1 with the 2 hooks on the photo diode holder 2. Photo diode holder assembly attachment 1. Attach the photo diode holder assembly 1 to the inner rotary hook bracket 2 with the screw 1.
Page 224 Module Feed/rotary hook module Inner rotary hook bracket assembly 1. Attach the inner rotary hook bracket 1 to the stopper plate block 2 with the screw 1. *Key point • Engage the positioning tab on the inner rotary hook bracket with the positioning slot on the stopper plate block.
Page 225 Module Feed/rotary hook module Drop lever attachment 1. Insert the base plate 2 into the groove below the drop lever 1. 2. Position the drop lever 1 and the vertical lever 3 as shown in the illustration on the right. 3.
Page 226 Module Feed/rotary hook module Drop knob attachment 1. Place the drop knob 1 onto the pin of the drop assembly, and then attach the retaining ring (E3). 2. Attach the plate spring 2 with the screw 1. *Key point • Hang the lower hook of the plate spring over the base plate. •...
Page 227 Module Needle thread module location diagram 3 - 95...
Page 228: Needle Thread Module
Module Needle thread module Drive gear A attachment 1. Apply a small bead of MOLYKOTE EM-30L to the 2 calking shafts of the unit assembly. 2. Apply a light covering of MOLYKOTE EM-30L to the circumference of drive gear A. 3.
Page 229 Module Needle thread module Rack ASSY assembly 1. Align the rack 1 with the slider 2, and then temporarily tighten the screw 1 in the center screw hole. *Key point • Position the rack with the gear on the upper side. •...
Page 230 Module Needle thread module Rack assembly attachment 1. Place the rack assembly 1 in the unit assembly. *Key point • Lift the right end of the rack assembly, and then insert it from the left side. • Align the rack assembly gear 2 with the drive gear 3 (smaller diameter).
Page 231 Module Needle thread module TH pulse motor assembly attachment 1. Apply 1 or 2 drops of Turbine oil #100 to the shaft of the TH pulse motor assembly. 2. Apply a light covering of MOLYKOTE EM-30L to the circumference of the TH pulse motor assembly's gear.
Page 232 Module Needle thread module ATTHD INIT PCB assembly attachment 1. Attach the ATTHD INIT PCB assembly 1 to the unit assembly 2 with the screw 1. *Key point • Engage the positioning tab on the unit assembly with the positioning slot on the ATTHD INIT PCB assembly, and then shift them downward.
Page 233 Module Needle thread module Thread guide base assembly attachment 1. Attach the thread guide base assembly 1 to the unit assembly, and temporarily tighten the 3 screws 1. Adjust the shuttle, and then fully tighten the 3 screws 1. *Key point •...
Page 234 Module Needle thread module Thread guide base plate ASSY assembly Retaining ring E2 1. Insert the calking shaft of the thread guide plate assembly 1 into ### from the rear of the thread guide base plate 2. 2. Place the polyester slider onto the calking shaft of the thread guide plate assembly 1 from the front of the thread guide base plate 2, and then attach the retaining ring (E2).
Page 235 Module Needle thread module Thread guide base plate assembly attachment 1. Attach the thread guide base plate assembly 1 to the thread unit assembly 2 with the screw 1. *Key point • Engage the positioning tab on the thread unit assembly with the positioning hole on the thread guide base plate assembly.
Page 236 Module Needle-presser module location diagram 3 - 104...
Page 237: Needle-Presser Module
Module Needle-presser module Presser dial gear attachment 1. Apply a light covering of MOLYKOTE EM-30L to the oscillating sections of the presser foot rack 1 gear and the unit holder. 2. Insert the presser foot rack 1 into the unit holder 2. 3.
Page 238 Module Needle-presser module Shaft bushing attachment 1. Attach the shaft bushing 1 to the unit holder with the 2 screws 1. *Key point • Insert the shaft bushing from the inside of the unit holder. Start movie clip (CD-ROM version only) Screw, Pan (S/P washer) Torque M4X14...
Page 239 Module Needle-presser module Thread take-up lever link attachment 1. Insert the shaft 1 into the shaft hole on the shaft bushing 2. *Key point • Insert the shaft from the end without a groove for a retaining ring. 2. Apply a light covering of MOLYKOTE EM-30L to the circumference of the shaft hole on the thread take-up lever link 3.
Page 240 Module Needle-presser module Presser bar attachment 1. Insert the presser bar bushing 1 into the shaft hole on the bottom of the unit holder. 2. Attach the plate spring 2 to the unit holder with the screw 1. *Key point •...
Page 241 Module Needle-presser module T cam attachment 1. Place the polyester slider 1 onto the T cam attachment shaft 2 of the unit holder. 2. Apply a small bead of MOLYKOTE EM-30L to the T cam attachment shaft 2. 3. Apply a light covering of MOLYKOTE EM-30L to the cam groove on the T cam 3.
Page 242 Module Needle-presser module Z pulse motor assembly attachment 1. Apply 1 or 2 drops of Turbine oil #100 to the shaft of the Z pulse motor assembly 1. 2. Attach the insulation tape to the PCB of the Z pulse motor assembly 1. 3.
Page 243 Module Needle-presser module Thread release lever assembly attachment 1. Apply a small bead of MOLYKOTE EM-30L to the calking shaft (center) 2 of the thread release lever 1. 2. Insert the calking shaft (center) 2 of the thread release lever 1 into the shaft hole on the unit holder, and then attach the retaining ring (E3).
Page 244 Module Needle-presser module Z zigzag lever assembly attachment 1. Attach the cap 1 to the tip of the Z zigzag lever assembly as shown in the illustration on the right. 2. Apply a small bead of MOLYKOTE EM-30L to the calking shaft (center) of the Z zigzag lever assembly 2.
Page 245 Module Needle-presser module Thread take-up counter weight attachment 1. Temporarily attach the 4 screws 1 to the thread take-up counter weight 1. 2. Attach the retaining ring (E8) to the groove on the unit shaft 2, and then insert the thrust washer 3 from the D-cut face of the unit shaft 2. 3.
Page 246 Module Needle-presser module Thread take-up lever assembly attachment 1. Apply a bead of MOLYKOTE EM-30L to the 2 calking shafts of the needle bar crank 1. 2. Apply a bead of MOLYKOTE EM-30L to the calking shaft of the thread take-up lever assembly 2.
Page 247 Module Needle-presser module Tension release rod attachment 1. Apply a small bead of MOLYKOTE EM-30L to the calking shaft of the tension release rod 1. 2. Insert the calking shaft of the thread release lever assembly 3 into the slot on the tension release rod 2, and then insert the calking shaft of the tension release rod 1 into the shaft hole on the unit holder.
Page 248 Module Needle-presser module Press foot lifter attachment Retaining ring E4 1. Attach the retaining ring (E4) to the groove near the edge of the presser lift shaft 1. 2. Apply a light covering of MOLYKOTE EM-30L to the surface of the presser lift shaft 1.
Page 249 Module Needle-presser module Release plate assembly attachment 1. Apply a small bead of MOLYKOTE EM-30L to the calking shaft at the end of the release plate assembly 1. 2. Insert the release plate assembly 1 into the shaft hole on the unit holder. *Key point •...
Page 250 Module Needle-presser module Adjusting plate ASSY assembly 1. Apply a small bead of EPNOC AP (N)0 to the calking shaft of the adjusting plate 1. 2. Place tension release plate C 2 onto the calking shaft of the adjusting plate 1, and then attach the retaining ring (E3).
Page 251 Module Needle-presser module Adjust plate attachment 1. Attach the adjust plate 1 to the bottom of the needle holder assembly with the screw 1. *Key point • Align the bottom of the needle roller pin with the slot on the adjust plate, and then move them so that the adjust plate is level with the side face of the needle holder assembly.
Page 252 Module Needle-presser module Lever AB assembly attachment Retaining ring E2 1. Attach the retaining ring (E2) to the groove on the inside of the lever guide shaft 1. 2. Apply a light covering of EPNOC AP (N)0 to the surface of the lever guide shaft 1.
Page 253 Module Needle-presser module Needle bar ASSY assembly 1. Inset the needle thread plate into the needle block 1. *Key point • Press both ends of the needle thread plate, and then insert it into the needle block from the lower section of the needle block (section with cut-face).
Page 254 Module Needle-presser module Needle holder ASSY assembly 1. Apply a bead of MOLYKOTE EM-30L to the needle bar hook 2 of the needle bar block 1. 2. Insert the needle bar assembly 3 from the bottom of the needle holder assembly, and then insert the needle bar block 1.
Page 255 Module Needle-presser module Release lever ASSY assembly Retaining ring E2.5 1. Attach the retaining ring (E2.5) to the groove on the release lever shaft 1. 2. Attach the thrust washer 2 and the release lever 3 to the release lever shaft 1.
Page 256 Module Needle-presser module Release guide plate attachment 1. Apply a light covering of EPNOC AP (N)0 to the groove on the release guide plate 1. 2. Attach the release guide plate 1 to the needle holder assembly (the position shown in the illustration on the right) with the 2 screws 1. *Key point •...
Page 257 Module Needle-presser module Needle holder assembly attachment 1. Apply 1 or 2 drops of MOLYKOTE (sewing lubricant 90% + MOLYKOTE EM-30L 10%) to the shaft of the needle bar block 2. 2. Insert the needle holder assembly 1 from the top of the unit holder. 3.
Page 258 Module Needle-presser module Spring attachment 1. Attach spring to the plate 1 and the needle bar hook stand assembly *Key point • Attach spring in the following direction: ⇒ Plate From the left side ⇒ Needle bar hook stand assembly From the front side SPRING XC6252***...
Page 259 Module Needle-presser module Needle holder shaft block attachment 1. Apply a small bead of EPNOC AP (N)0 to the needle roller 1 of the needle holder assembly. 2. Insert the needle holder block 2 into the needle roller 1. *Key point •...
Page 260 Module Needle-presser module Spring attachment 1. Attach spring to the plate 1 and the groove at the upper section of the unit holder 2. *Key point • Attach the end with the shorter hook to the plate and the end with the long hook to the unit holder.
Page 261 Module Needle-presser module Lock nut attachment 1. Attach the lock nut 1 to the screw 1. *Key point • Thread the lock nut to the mid point of the screw 1. 2. Attach the screw 1 to the upper rear section of the unit holder. *Key point •...
Page 262 Module Needle-presser module PT holder ASSY 1. Insert the cloth thickness sensor assembly 1 from the bottom of the PT holder 2. 2. Attach the plain washer (M6) 3 and the #1 nut 4 to the shaft of the cloth thickness sensor assembly 1, and then tighten the #1 nut 4.
Page 263 Module Needle-presser module PT holder assembly attachment 1. Attach the screw 1 to the screw hole on the side face of the PT holder assembly 1. 2. Attach the PT holder assembly 1 to the unit holder with the screw 2. *Key point •...
Page 264 Module Needle-presser module Presser pulse motor holder ASSY assembly 1. Apply 1 or 2 drops of Turbine oil #100 to the shaft of the presser pulse motor 1. 2. Insert the presser pulse motor lead wire assembly 2 into the connector of the presser pulse motor 1.
Page 265 Module Needle-presser module Hook assembly attachment 1. Place the hook assembly 1 onto needle threader shaft A 2 until you hear a click. Presser feed holder attachment 1. Temporarily attach the screw 1 to the presser feed holder assembly 1. 2.
Page 266 Embroidery Main parts location diagram 3 - 134...
Page 267: Embroidery Main Parts
Embroidery Main parts Y sensor PCB assembly attachment 1. Attach the Y sensor PCB assembly to the X carriage assembly 1 with the screws 1. *Key point • Engage the positioning tab on the X carriage assembly with the positioning notch on the Y sensor PCB assembly. Screw, Bind Torque M3X6...
Page 268 Embroidery Main parts Y slider assembly attachment 1. Attach the YT belt presser plate 1 to the Y slider 3 with the tab 2 on the bottom. 2. Temporarily tighten the screw 1 in the YT belt presser plate 1. 3.
Page 269 Embroidery Main parts Y pulse motor attachment 1. Apply 1 or 2 drops of Turbine oil #100 to the bushing 1 of the Y pulse motor. 2. Attach the Y pulse motor assembly 2 to the X carriage assembly with the 2 screws 1.
Page 270 Embroidery Main parts E hoop stay plate ASSY assembly Retaining ring E4 1. Attach the frame PCB assembly 1 and the insulation sheet 2 to the E hoop stay plate sub assembly 3 with the 2 screws 1. *Key point •...
Page 271 Embroidery Main parts E hoop stay plate assembly attachment 1. Attach the E hoop stay plate 1 to the Y carriage assembly with the 2 screws 1. *Key point • Align the 3 screws on the rear of the E hoop stay plate with the corresponding holes on the Y carriage assembly.
Page 272 Embroidery Main parts FFC support ASSY assembly 1. Bend the FFC cord 1 (50 mm from the tip) with the black line facing out. 2. Insert the end of the FFC cord 1 into the guide 3 on the FFC support 2, and pull the tip of the FFC cord 1 until the black line passes through the guide 3.
Page 273 Embroidery Main parts FFC support assembly attachment 1. Insert the FFC cord of the FFC support assembly 1 into the connector of the frame PCB assembly 2. 2. Attach the FFC support assembly 1 to the Y carriage assembly 3 with the 2 screws 1.
Page 274 Embroidery Main parts Y carriage assembly attachment stop ring (10.69) 1. Attach the spring washer 2 and the plain washer 3 to the Y guide shaft 1 (from the end with the groove), and then attach the stop ring (10.69) to the outer groove.
Page 275 Embroidery Main parts FFC cord arrangement 1. Slide the Y carriage assembly 1 to the left as far as possible. 2. Thread the tip of the FFC cord 2 from the left end of the X carriage assembly 3 into the Y slider. 3.
Page 276 Embroidery Main parts Cord clip attachment 1. Cord clip 1 to be attached to the right: Hang the FFC cord 2 (folded into N-shape) over the left guide 3 of the cord clip. Hold this section with the guide, and attach the cord clip to the hole 4 on the right side the XY carriage assembly.
Page 277 Embroidery Main parts YPM lead wire assembly attachment 1. Insert the YPM lead wire assembly 1 into the connector of the Y pulse motor 2. 3 - 145...
Page 278 Embroidery Main parts Cord grip attachment 1. Pass the FFC cord 1 under the Y sensor PCB 2. 2. Bend the Y sensor PCB lead wire (3-wire cord) inward, and pass it under the Y sensor PCB 2. 3. Bundle the FFC cord 1, Y sensor PCB lead wire (3-wire cord), and YPM lead wire 3 (4-wire cord) in this order, and thread them through the cord grip 4.
Page 279 Embroidery Main parts X slider attachment 1. Insert the X guide shaft 1 into the shaft hole on the XY carriage assembly *Key point • Insert the end of the X guide shaft with the tab from the connector face of the Y pulse motor. 2.
Page 280 Embroidery Main parts X driving gear pulley assembly attachment 1. Apply a bead of EPNOC AP (N)0 to the shaft of the main frame sub assembly. 2. Insert the driving gear pulley assembly 1 into the shaft of the main frame sub assembly.
Page 281 Embroidery Main parts X pulse motor attachment 1. Attach the XPM lead wire assembly 1 to the X pulse motor. 2. Apply 1 or 2 drops of Turbine oil #100 to the bushing 3 of the X pulse motor 2. 3.
Page 282 Embroidery Main parts XY carriage unit attachment 1. Insert the X guide plate 2 of the main frame assembly into the groove on the X slider 1. 2. Place the left end of the X guide shaft 3 over the left bushing4 of the main frame assembly.
Page 283 Embroidery Main parts X belt presser attachment 1. Attach the X belt presser 1 to the X carriage assembly , and then temporarily tighten the screw 1. *Key point • Hold the X belt with the X belt presser, and align the ridge with the trough.
Page 284 Embroidery Main parts X sensor PCB assembly cord arrangement 1. Slide the X carriage assembly 1 of the main frame assembly to the right as far as possible. 2. Hang the lead wire of the X sensor PCB assembly 2 over the left hook 3 on the bottom of the main frame, and then tie it with a band.
Page 285 Embroidery Main parts E cord supporter cord arrangement 1. Slide the X carriage assembly 1 to the left as far as possible. 2. Arrange the YPM lead wires 2 (4-wire cord) on the front side and the Y sensor PCB lead wire 3 (3-wire cord) on the rear side so that they are parallel, and then place the FFC cord 4 over them.
Page 286 Embroidery Main parts Drop lever calking ASSY assembly 1. Attach the notched cam 1 to the drop lever calking assembly 2 with the screw 1. *Key point • Engage the 2 positioning tabs on the notched cam with the corresponding positioning holes on the drop lever calking assembly.
Page 287 Embroidery Main parts Drop lever ASSY assembly 1. Insert the drop switch assembly 1 into the drop switch holder 2. 2. Attach the drop switch holder assembly 3 to the drop lever support assembly 4 with the screw 1. 3. Insert the drop lever calking assembly 5 into the shaft of the drop lever support assembly 6.
Page 288 Embroidery Main parts Drop lever assembly attachment 1. Thread the end of the drop connection rod 1 with the hole through the hole 3 on the ES base cover assembly 2, and the other end through the hole 4 on the ES base cover assembly 2. 2.
Page 289 Embroidery Main parts Lock release lever assembly attachment 1. Hook one end of spring onto the spring hole 2 on the ES base cover 2. Insert the lock finger 4 and the lock release lever 5 of the lock release lever assembly 3 into the corresponding holes on the EX base cover 1.
Page 290 Embroidery Main parts ES base cover assembly attachment 1. Attach the ES base cover assembly 1 to the main frame assembly 2 with the 2 screws 1. *Key point • Set the ES base cover assembly first, and then attach the main frame assembly to it.
Page 291 Embroidery Main parts EMB relay PCB assembly lead wire connection 1. Thread the lead wire connector 1 of the drop switch assembly through the guide of the drop lever support assembly 2, and insert it to the EMB relay PCB assembly 3. 2.
Page 292 Embroidery Main parts E hoop stay cover attachment 1. Position the embroidery unit assembly with the main unit attachment section on the left. 2. Attach the E hoop stay cover 1 to the Y carriage assembly with the screws (1 and 2). *Key point •...
Page 293 Embroidery Main parts X carriage cover attachment 1. Position the embroidery unit assembly with the main unit attachment section 1 on the left. 2. Attach the X carriage cover 2 to the X carriage assembly 3 with the screw 1. *Key point •...
Page 294 Embroidery Main parts YPM cover attachment 1. Position the embroidery unit assembly with the main unit attachment section 1 on the right. 2. Attach the YPM cover 2 to the indicated section 4 of the X carriage cover 3 with the screw 1. *Key point •...
Page 295 Adjustment Touch panel adjustment......4 - 2 Timing belt tension adjustment ....4 - 3 Motor belt tension adjustment....4 - 4 Upper shaft rotation shutter angle adjustment . 4 - 5 Three point needle drop adjustment ..4 - 6 Needle clearance left/right adjustment..
Page 296: Adjustment
Adjustment Touch panel adjustment 1. Turn the power on while holding down the [Start/Stop], [Reverse stitch], and [Needle position] buttons. 2. Touch the positions marked with crosses (+) on the touch panel in order from 1 to 5. NOTE • Setting is successful if a single beep sounds when "5" is pressed. •...
Page 297: Timing Belt Tension Adjustment
Adjustment Timing belt tension adjustment 1. Loosen the pan head screw (S/P washer, M4X10) securing the tension pulley assembly. 2. Adjust the position of the tension pulley so that the belt deflects 2.95 to 3.05 mm when a force of 1.96N (200g) is applied to the center of the belt.
Page 298: Motor Belt Tension Adjustment
Adjustment Motor belt tension adjustment 1. Loosen the screw securing the motor holder. 2. Adjust the position of the motor holder so that the belt deflects 1.5 to 3.5 mm when a force of 0.98N (100g) is applied to the center of the belt. 3.
Page 299: Upper Shaft Rotation Shutter Angle Adjustment
Adjustment Upper shaft rotation shutter angle adjustment 1. Start the test mode. 2. Select test mode "22". (NP sensor mode) 3. Turn the pulley to raise the needle bar to the limit. 4. Loosen the screws securing the upper shaft rotation shutter. ±...
Page 300: Three Point Needle Drop Adjustment
Adjustment Three point needle drop adjustment 1. Remove the front cover, and turn the power on while pressing [SW3] and [SW4] on the main PCB assembly. 2. Press [SW4] (select test mode "4" when the front cover is attached). 3. Turn the pulley by hand until the tip of the needle enters the needle hole. 4.
Page 301: Needle Clearance Left/Right Adjustment
Adjustment Needle clearance left/right adjustment 1. Turn the pulley by hand until the tip of the needle enters the needle hole. 2. Loosen the screw (3X10). 3. Move the needle holder shaft block to the left or right so that the needle drop is centered over the needle hole on needle plate A at the left base line and right base line.
Page 302: Needle Bar Rising Adjustment
Adjustment Needle bar rising adjustment 1. Remove the front cover, and turn the power on while pressing [SW3] and [SW4] on the main PCB assembly. 2. Press [SW4] four times (select test mode "4" and then "" when the front cover is attached) to move the needle bar to the left base line.
Page 303: Needle Bar Height Adjustment
Adjustment Needle bar height adjustment 1. Remove the front cover, and turn the power on while pressing [SW3] and [SW4] on the main PCB assembly. 2. Press [SW4] four times (select test mode "4" and then "" when the front cover is attached) to move the needle bar to the left base line.
Page 304: Needle Threader Adjustment
Adjustment Needle threader adjustment 1. Attach a needle. 2. Turn the pulley to raise the needle bar to the limit. 3. Loosen the socket set screw (FT, M4X4) securing the needle thread block. 4. Adjust the height of the needle thread block so that the threading hook passes through the needle hole, and secure the needle thread block with the socket set screw (FT, M4X4).
Page 305: Clearance Between Needle And Rotary Hook Point Adjustment
Adjustment Clearance between needle and rotary hook point adjustment 1. Remove the front cover, and turn the power on while pressing [SW3] and [SW4] on the main PCB assembly. 2. Press [SW4] four times (select test mode "4" and then "" when the front cover is attached) to move the needle bar to the left base line.
Page 306: Presser Bar Height And Parallelism Adjustment
Adjustment Presser bar height and parallelism adjustment 1. Attach J presser foot. 2. Turn the power on. 3. Turn the pulley by hand until the feed dog is lower than needle plate A. 4. Loosen the set screw (CP, M5X10) securing the presser bar clamp assembly. 5.
Page 307: Needle And Presser Front/Back Position Adjustment
Adjustment Needle and presser front/back position adjustment 1. Attach J presser foot. 2. Turn the pulley by hand until the tip of the needle enters the needle hole. 3. Loosen the lock nut. 4. Move the needle tip to the center position (front/back) of the needle hole using the socket set screw (CP, M4X12). 5.
Page 308: Fine Tension Adjustment
Adjustment Fine tension adjustment 1. Raise the presser foot lifter. 2. Pass the Schappe Spun Sewing Thread #60 through the thread guide and then the tension plate. 3. Lower the presser foot lifter. 4. Pull the thread with a tension gauge, and adjust the tension to 0.08 to 0.11N (8 to 11g) using the power lock (2x3). Tension plate Power lock 2x3 4 - 14...
Page 309: Upper Thread Tension Adjustment
Adjustment Upper thread tension adjustment 1. Raise the presser foot lifter. 2. Turn the power on, and check that the AT pulse motor returns to its home position. 3. Turn the power off. 4. Pass the Schappe Spun Sewing Thread #60 through the thread guide, tension plate, tension disk, and brake plate assembly in this order.
Page 310 Adjustment Shuttle adjustment 1. Adjust the needle thread block. 2. Remove the thread guide hook. 3. Turn the pulley by hand until the base line comes to the top. 4. Select test mode "22". (NP sensor mode) 5. Turn the pulley by hand until it reaches the position the buzzer stops (upper shaft rotation angle 32°). 6.
Page 311: Shuttle Adjustment
Adjustment Shuttle adjustment 11. Loosen the 3 screws securing the shuttle, and position the shuttle as below. 2Distance from top edge of needle hole to thread : 0.3 mm ± 0.2 mm 3Length that tip of hook on thread guide plate assembly protrudes from needle threader shaft (shaft that needle thread hook is to be attached to) when viewed from side (right angle) : 0 - 0.5 mm 12.
Page 312: Shuttle Origin Position Adjustment
Adjustment Shuttle origin position adjustment 1. Select test mode "28". 2. Confirm [THPM Stop Position Adjust] is FF, press 3. Press 2 [THPM OFF] 4. Turn the THPM by hand until it reaches the position the shuttle begin a movement. 5.
Page 313: Thread Scratch Link Adjustment
Adjustment Thread scratch link adjustment 1. Select test mode "28". 2. Loosen the screw of thread scratch link and lower the thread scratch link to the limit. And then tighten the screw. (Reference 1) ↓ 3. Select THPM " " and then lower the shuttle to the limit. 4.
Page 314: Inner Rotary Hook Tension Adjustment
Adjustment Inner rotary hook tension adjustment 1. Set a bobbin (wound with Schappe Spun Sewing Thread #60) to the inner rotary hook, and thread the needle. 2. Pull the thread with a tension gauge, and adjust the tension to 0.10 to 0.12N (10 to 12g) using the spring adjusting screw.
Page 315: Cloth Pressure Setting Adjustment
Adjustment Cloth pressure setting adjustment 1. Attach J presser foot. 2. Select test mode "02" 3. Turn the pulley by hand until the feed dog is lower than the needle plate. 4. Lower the presser lever, and then press [0] on the screen. 5.
Page 316: Feed Dog Height And Squareness Adjustment
Adjustment Feed dog height and squareness adjustment 1. Turn the pulley to raise the feed dog to limit. (The D-cut of lower shaft B should be facing up.) 2. Adjust the vertical adjuster so that the far back tooth of the feed dog is 0.9 to 1.1 mm from the top face of needle plate A.
Page 317: Front/Back And Left/Right Position Of Feed Dog Adjustment
Adjustment Front/back and left/right position of feed dog adjustment 1. Select test mode "6". 2. Select the key. (Set the feed to "0" and the feed dog to center.) 3. Loosen the 2 screws (bind, M3X8), temporarily attach needle plate A, and adjust the front/back and left/right right positions of the feed dog.
Page 318: Side Feed Straight Stitch Adjustment
Adjustment Side feed straight stitch adjustment 1. Attach N presser foot. 2. Select test mode "36", and check sewing condition using Schappe Spun Sewing Thread #60. 3. Adjust the following so that the pattern shape is appropriate: 1Adjust the feed dog height and alignment so that the U-shape is almost on the right and the sewing length at the upper section is 26.0 to 31.0 mm.
Page 319: One Point Adjustment
Adjustment One point adjustment 1. Attach N presser foot. 2. Select test mode "03" 3. Press the [Start/Stop] switch. 4. Adjust the correction value to prevent pattern overlapping, opening, and/or shift. *Key point ↕ • If the pattern is compressed in the direction, press the vertical [ + ] button.
Page 320: Feed Forward/Backward Adjustment
Adjustment Feed forward/backward adjustment 1. Attach J presser foot. 2. Remove the front cover, and turn the power on while pressing [SW3] and [SW4] on the main PCB assembly. (Select [13] in test mode.) 3. Press [SW2] to enter "Feed forward and backward mode." 4.
Page 321: Knee Lifter Position Adjustment
Adjustment Knee lifter position adjustment 1. Select test mode "02" 2. Turn the pulley by hand until the feed dog is lower than the needle plate top face. 3. Lower the presser lever, and press [MIN]. 4. Insert the lever, and press [MAX] with the lever fully turned to the right. 5.
Page 322: Bh Lever Switch Position Adjustment
Adjustment BH lever switch position adjustment 1. Raise the presser foot lifter. 2. Set the BH presser to a point two pitches less than the maximum length. 3. Attach the BH presser. 4. Lower the presser foot lifter. 5. Lower the BH lever, and set it to the BH presser. 6.
Page 323: X-Belt Tension Adjustment
Adjustment X-belt tension adjustment 1. Loosen the 2 screws 1. 2. Move the tension pulley plate assembly right and left to adjust the X-belt tension. 3. Tighten the 2 screws 1. Load when center of X-belt is deflected 6.0 mm: 2.254 to 2.646N (230 to 270g) 6.0mm 2.254 - 2.646N (230 - 270g) 4 - 29...
Page 324: Y-Belt Tension Adjustment
Adjustment Y-belt tension adjustment 1. Loosen the 2 screws 1. 2. Move the tension pulley plate assembly right and left to adjust the Y-belt tension. 3. Tighten the 2 screws 2. Load when center of Y-belt is deflected 6.0 mm: 1.28 to 1.67N (130 to 170g) 1.28 - 1.67N (130 - 170g) 6.0mm 4 - 30...
Page 325: X-Carriage Height Adjustment
Adjustment X-carriage height adjustment 1. Attach the embroidery hoop to the machine and turn the power on. 2. Turn the power off. 3. Remove the embroidery hoop. 4. Loosen the screws securing the embroidery hoop stay plate. 5. Adjust the clearance between the cover and the embroidery hoop stay plate to 3.3 to 3.7 mm at a position 5 mm from the right edge of the embroidery hoop stay plate.
Page 326: Inner Rotary Hook Bracket Position Adjustment
Adjustment Inner rotary hook bracket position adjustment 1. Set the inner rotary hook in the outer rotary hook. 2. Loosen the screw (bind, M3X8) securing the inner rotary hook bracket assembly. 3. Adjust the position of the inner rotary hook bracket assembly so that the inner rotary bracket assembly contacts the inner rotary hook along 1.6 to 1.8 mm, and secure the inner rotary hook bracket assembly with the screw (bind, M3X8).
Page 327 Failure Investigation for Electronic Parts * Perform resistance measurements after turning off the power, and detaching the connectors to be measured from the PCB. Error message list ............5 - 2 The power does not come on........... 5 - 3 Pulse motors do not return to starting point .....
Page 328: Error Message List
Failure Investigation for Electronic Parts Error message list Error display Cause (5 - 38) Abnormal rotation in main motor. Key pressed continually with power ON (5 - 39) (operation system SW). (5 - 40) FC disconnect (5 - 41) Dirty speed sensor (5 - 41) NP sensor disconnect (5 - 42)
Page 329: The Power Does Not Come On
Failure Investigation for Electronic Parts The power does not come on When the power is turned on, nothing appears on the LCD. When the power is turned on, does To next page the buzzer sound after a while? Is the power supply cord free from Connect the power supply damage and connected correctly? cord correctly or replace it.
Page 330 Failure Investigation for Electronic Parts The power does not come on From previous page Is the backlight turned on? Is the inverter lead wire free from Connect the inverter lead damage and correctly connected? wire correctly or replace it. Replace the inverter (D6). Is FFC (Flexible flat cable) for the free from...
Page 331: Pulse Motors Do Not Return To Starting Point
Failure Investigation for Electronic Parts Pulse motors do not return to starting point When the power is turned ON, the pulse motors do not return to the starting point. When needle is up : Z pulse motor returns to its original position. When needle is down : F and S pulse motors return to their original position.
Page 332 Failure Investigation for Electronic Parts Pulse motors do not return to starting point From previous page Is the resistance between the pins at the ends of each pulse motor lead wire 1 Ω or less? •AT, TH, Z, C, and S pulse motor lead wires Between pins 1 &...
Page 333: The Touch Panel Does Not Work
Failure Investigation for Electronic Parts The touch panel does not work The touch panel does not work. Is the touch panel tuned correctly? Connect it properly. Is the touch panel’s FFC properly connected to connector CN16 on Connect it properly. the panel PCB? Is the resistance between pins 2 and Change touch panel and...
Page 334: Main Motor Does Not Turn
Failure Investigation for Electronic Parts Main motor does not turn Main motor does not turn Adjust the upper shaft Does the pulley turn easily? assembly Is the main motor connector correctly connected to the power Reconnect it correctly PCB assembly (CN301)? Is the harness attached to the power PCB assembly correctly connected Reconnect it correctly...
Page 335 Failure Investigation for Electronic Parts Main motor does not turn From previous page Is the presser foot lifter down? Lower the presser foot lifter Are the resistance values for the PFSW-S assy. normal? PFSW-S assy. resistance values Replace PFSW-S assy. When switch is pressed : 1Ω...
Page 336: Main Motor Rotation Abnormal
Failure Investigation for Electronic Parts Main motor rotation abnormal Is there rotational variance in the main motor? Does the rotation not reach top speed? Can the speed not be adjusted? When the speed controller lever is moved with the power "on," does the voltage between pins 3 and 1 on Replace VR PCB assy.
Page 337: Cannot Sew Pattern Well
Failure Investigation for Electronic Parts Cannot sew pattern well Normal pattern is not generated With the power OFF, can you lightly Adjust the attachment of the move the needle bar left and right by needle-presser module hand? Is the resistance between the pins at the ends of each pulse motor lead wire 1 Ω...
Page 338: Cannot Sew Button Holes Well
Failure Investigation for Electronic Parts Cannot sew button holes well Cannot sew button holes well Is the correct presser being used? Change to correct presser Is the resistance between pins 4 and 5 on Adjust BH lever the BH switch connector (CN21) normal? BH lever down : 1Ω...
Page 339: Stitch Length And Zigzag Width Cannot Be Done By Manual Adjustment
Stitch length and zigzag width cannot be Failure Investigation for Electronic Parts done by manual adjustment Stitch length and zigzag width cannot be done by manual adjustment. Does the LCD panel display change when the manual key for stitch length Adjust or replace the touch and the manual key for zigzag width panel.
Page 340: Problems With Vertical Needle Movement And Reverse Stitching
Problems with vertical needle movement and Failure Investigation for Electronic Parts reverse stitching Problems with vertical needle movement and reverse stitching Is the resistance for the start / stop switch, reverse switch, raise needle switch, thread cut switch, presser foot Replace the SS PCB assembly lifter switch, and thread switch normal? or thread switch PCB assembly.
Page 341: Does Not Operate When The Foot Controller Is Used
Failure Investigation for Electronic Parts Does not operate when the foot controller is used Does not operate when the foot controller is used. Is the resistance between pins 2 and 3 on the foot controller jack Replace the foot controller assembly connector normal? jack assembly.
Page 342: Needle Bar Cutting And Separating Does Not Occur Normally
Needle bar cutting and separating does not Failure Investigation for Electronic Parts occur normally Needle bar cutting and separating does not occur normally Is the needle bar cutting and Adjust the needle-presser separating operation easy and module assembly smooth? Is the resistance between pins 1 & 1, 2 &...
Page 343: Thread Tensioning Does Not Go Well
Failure Investigation for Electronic Parts Thread tensioning does not go well Thread tensioning is not right Is the thread guide path correct? Set thread correctly Set the lower thread correctly Is the lower thread placement correct? Is the material, thread and needle Use the correct combination combination correct? Are the main PCB and AT initial sensor...
Page 344 Failure Investigation for Electronic Parts Thread tensioning does not go well From previous page Is the resistance between pins 1 & 1, 2 Replace the AT pulse motor & 2, 3 & 4, and 4 & 3 at the ends of the lead wire.
Page 345: Thread Cutter Does Not Work Normally
Failure Investigation for Electronic Parts Thread cutter does not work normally Thread cutter does not operate normally Do the thread hook assy. and lever Adjust the assembly of the thread cutter module gear move easily? Is the resistance between pins 1 & 1, 2 &...
Page 346: Bobbin Winding Cannot Be Done
Failure Investigation for Electronic Parts Bobbin winding cannot be done The bobbin winder motor does not rotate. Adjust the bobbin winder Is the bobbin winder mechanism mechanism for correct assembled and attached correctly? assembly and attachment Is the resistance between pins 1 and 2 on the BW switch assembly (D6) connector normal? Replace the BW switch...
Page 347: The Lamp At Hand Does Not Have Light
Failure Investigation for Electronic Parts The lamp at hand does not have light The lamp does not light. Is the lamp set to "ON"? Set the lamp to "ON." Are the main PCB assembly and Reconnect the main PCB LED lamp L assembly correctly assembly and LED lamp L connected? assembly.
Page 348 Failure Investigation for Electronic Parts The lamp at hand does not have light From previous page When the power PCB connector (main PCB (CN13)) is removed, is the Replace the power supply unit voltage between pins 5 & 6 and 8 & 6 (D6).
Page 349: Bobbin Thread Detection Does Not Work Normally
Failure Investigation for Electronic Parts Bobbin thread detection does not work normally Bobbin thread detection does not work normally Are the main PCB assembly and Reconnect the main PCB photo diode assembly assembly and photo diode correctly connected? PCB assembly. Are the main PCB assembly and Reconnect the main PCB photo transistor PCB assembly...
Page 350: Upper Thread Sensor Does Not Work Normally
Failure Investigation for Electronic Parts Upper thread sensor does not work normally Upper thread sensor does not work normally Are the main PCB assembly and Reconnect the main PCB upper thread assembly assembly and upper thread correctly connected? PCB assembly. When the slit section of the upper thread PCB assembly is switched to the open / closed position with...
Page 351: Automatic Needle Threader Does Not Work Correctly
Failure Investigation for Electronic Parts Automatic needle threader does not work correctly Abnormal automatic threading Adjust the SS PCB assembly Is the resistance of the SS PCB and thread PCB assembly, assembly and thread PCB assembly switch normal? replace the SS PCB assembly, Resistance of each switch When switch is pressed : 0 Ω...
Page 352 Failure Investigation for Electronic Parts Automatic needle threader does not work correctly From previous page Is the resistance between pins 1 & Replace the TH pulse motor 1, 2 & 2, 3 & 4, and 4 & 3 at the lead wire.
Page 353: The Presser Foot Lifter Does Not Work Correctly
Failure Investigation for Electronic Parts The presser foot lifter does not work correctly Abnormal presser foot lifter behavior Adjust the SS PCB assembly Is the resistance of the SS PCB and thread PCB assembly, assembly and thread PCB assembly switch normal? replace the SS PCB assembly, Resistance of each switch When switch is pressed : 0 Ω...
Page 354 Failure Investigation for Electronic Parts The presser foot lifter does not work correctly From previous page Is the knee lifter sensor PCB Replace the main motor assembly correctly connected? When the knee lifter is operated with the power on, does the voltage Replace knee lifter...
Page 355 Failure Investigation for Electronic Parts The presser foot lifter does not work correctly From previous page Is the resistance between pin 1 (yellow housing) & pin 3 (white housing), pin 2 (yellow housing) & pin 4 (white housing), pin 3 (yellow Replace the PF pulse motor housing) &...
Page 356: Card Cannot Be Used Normally
Failure Investigation for Electronic Parts Card cannot be used normally Embroidery card cannot be used normally Does the machine function normally Change panel PCB. when another card is used? Use another card. 5 - 30...
Page 357 Failure Investigation for Electronic Parts Universal serial bus (USB) cannot be used normally Universal serial bus (USB) cannot be used normally. Is the USB device firmly connected? Connect it properly. When the USB device is replaced with Replace the USB device. a new one, does it work correctly? Change panel PCB.
Page 358: Universal Serial Bus (Usb) Cannot Be Used Normally
Failure Investigation for Electronic Parts The hoop sensor does not function normally Universal serial bus (USB) cannot be used normally. Is the USB cable properly connected to both the Connect it properly. personal computer and the sewing machine? Does the machine function normally when the Change USB cable.
Page 359: Embroidery Unit Does Not Operate Normally
Failure Investigation for Electronic Parts Embroidery unit does not operate normally Embroidery unit does not operate normally Is the resistance across pins 1-2 and pins 3-4 for the X pulse motor Replace pulse motor connector 4-6 Ω? Is the resistance across pins 1-2 and pins 3-4 for the Y pulse motor Replace pulse motor connector 4-6 Ω?
Page 360 Failure Investigation for Electronic Parts Embroidery unit does not operate normally From previous page When operation is initially started with the Y sensor’s slit section Replace the Y sensor PCB closed, does the embroidery hoop assy. move toward the back? When operation is initially started with the X sensor’s slit section Replace the X sensor PCB...
Page 361 Failure Investigation for Electronic Parts Embroidery unit does not operate normally From previous page Is the resistance between pin 1 & pin 1 (11-way housing), pin 2 & pin 2 (11-way housing), pin 3 & pin 3 (11-way housing), pin 4 & pin 4 (11-way housing), pin 11 &...
Page 362: Unable To Detect Frame
Failure Investigation for Electronic Parts Unable to detect frame Unable to detect frame. Are the connectors inside the Reconnect the connector. embroidery unit correctly connected? Reconnect the main body Is the main body lead wire assembly lead wire assembly connector connector correctly connected to the main PCB assembly? to the main PCB assembly.
Page 363 Failure Investigation for Electronic Parts Unable to detect frame From previous page Is the residence between pin 1 (CN6) & pin 5 (CN5), pin 2 (CN6) & pin 6 (CN5), pin 3 (CN6) & pin 9 (CN5), pin 4 (CN6) Replace embroidery &...
Page 364: Error Is Displayed
Failure Investigation for Electronic Parts Error is displayed "F01" is displayed After the power supply unit (D6) is replaced, does the motor correctly Replace main PCB assy. rotate in test mode "14"? 5 - 38...
Page 365 Failure Investigation for Electronic Parts Error is displayed "F02" is displayed Is one of the SS key, NP key, BK key and CUT key stuck in a Replace SS PCB assy. pressed down condition? Release the switch that is stuck 5 - 39...
Page 366 Failure Investigation for Electronic Parts Error is displayed "F04" is displayed Are the foot controller jack assy. Replace the foot controller lead wires broken? jack assy. Is the foot controller jack assembly Correctly connect the foot correctly connected to the panel controller jack assembly to the PCB assembly (CN9)? panel PCB assembly (CN9).
Page 367 Failure Investigation for Electronic Parts Error is displayed The error message "F05" or "F06" is displayed on the screen. Correctly connect the NP Is the NP PCB assembly (D6) PCB assembly (D6) to the correctly connected to the main PCB assembly (CN15)? main PCB assembly (CN15).
Page 368 Failure Investigation for Electronic Parts Error is displayed "F07" is displayed Connect the VR PCB assy. Is the VR PCB assembly correctly to CN6 on the main PCB connected to the panel PCB assy. correctly assembly (CN6)? Replace VR PCB assy. 5 - 42...
Page 369 Special Instructions of Wiring 6 - 1...
Page 370 1. Left side of Needle-presser module Pass the ZPM lead wire, the THPM lead wire and the TH sensor lead wire under a coating clip. Tie lead wires with a band. The lead wires should be tied below This holder is not the shaft.
Page 371 3. Upper side of AT pulse motor 4. Thread guide mechanism No slack Adjust plate A TG sensor lead wire should be passed under the adjust plate A as shown. 6 - 3...
Page 372 5. Upper shaft cover 6. Lead wire guide of PCB holder 6 - 4...
Page 373 7. Upper back side of machine Fasten with a coating clip. The end of spiral tube should be aligned with the edge of arm. 8. NP sensor lead wire 6 - 5...
Page 374 1. Upper side of the main PCB NP lead wire Lead wires of all connectors to be connected to the right side of main PCB should be bound by the NP lead wire. 2. Upper right of the main PCB Coating clip Tie with a band.
Page 375 3. Right side of main PCB Make sure connectors are connected properly. 6 - 7...
Page 376 4. Upper left of main PCB BH lead wire The BH lead wire should be passed under the upper thread sensor lead wire, the AT INIT sensor lead wire and the TGPM lead wire. Upper thread sensor lead wire AT INIT sensor lead wire TGPM lead wire 5.
Page 377 6. Left side of main PCB Make sure connectors are connected properly. 6 - 9...
Page 378 1. Front cover 2. Front cover Tie with a band 6 - 10...
Page 379 3. Inverter cover Enlarged picture 6 - 11...
Page 380 Bobbin Winder Mechanism Perform wiring operation in accordance with a following procedure. 1. Pass the BW motor lead wire and the BWSW lead wire over a coating clip as shown in left picture. 2. Bend the coating clip toward left. 3.

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Nv4000

Brother NV4000D Service Manual

2 Disassembly

3 Assembly

4 Adjustment

5 Failure Investigation

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