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Failure Investigation for Electronic Parts LCD light does not come on

LCD light does not come on

Properly connect the single
light guide assy. backlight leads
to the operation F3 PCB assy.

Are the single light guide assy.
backlight leads and operation F3 PCB
assy. properly connected?

Replace the single light guide

assy.

Is the voltage between pins 2 & 1 on
the operation F3 PCB assy. connector
(CN3) approximately 3 - 4 V?

Connect the operation F3 PCB
assy. and main F3D PCB assy.
properly.

Are the operation F3 PCB assy. and
main F3D PCB assy. properly
connected?

• Replace operation F3 PCB assy.

• Replace main F3D PCB assy.

Содержание Innov-is NX600

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Страница 3: ...bin winder guide assembly removal 2 6 Front cover disassembly spool pin removal 2 7 Front cover disassembly SS VR F PCB assy removal 2 7 Front cover disassembly SV keytop removal 2 8 Rear cover removal 2 8 Handle removal 2 8 Electrical parts and motors 2 9 Power supply unit F removal 2 10 Assy pin jack F removal 2 10 Wire assy removal 2 10 PCB Unit LED lamp FL removal 2 11 Base plate sub assy remo...

Страница 4: ... 26 Leadline guide holder removal 2 27 Thread cutter module removal 2 27 Feed module removal 2 27 Lower shaft A assy removal 2 27 Joint removal 2 28 Timing pulley D removal 2 28 Lower shaft bushing removal 2 28 Needle bar presser mechanism Upper shaft mechanism 2 29 Upper shaft removal 2 30 Pulley removal 2 30 Upper shaft pulley removal 2 30 Tension pulley assembly removal 2 30 Needle presser modu...

Страница 5: ...ing removal 2 45 F pulse motor assembly removal 2 46 F pulse motor disassembly 2 46 Inner rotary hook bracket assy removal 2 46 Outer rotary hook assy removal 2 46 Feed bar spring removal 2 47 Feed bar removal 2 47 Vertical adjusting screw removal 2 47 Feed supporting plate spring removal 2 47 Lower shaft B assy removal 2 48 Lower shaft B assy disassembly 2 48 Feed arm assy removal 2 49 Feed arm a...

Страница 6: ... attachment 3 14 Bobbin winder holder assembly attachment 3 14 Bobbin presser assembly 3 14 Bobbin winder cover attachment 3 15 Bobbin base assembly 3 15 Bobbin base attachment 3 15 Thread tension mechanism 3 16 Spring tape attachment 3 17 Thread guide wire attachment 3 17 Thread take up spring attachment 3 18 Tension disk attachment 3 19 AT pulse motor attachment 3 19 Thread tension gear attachme...

Страница 7: ...tachment 3 38 Front thread guide cover attachment 3 38 Top cover attachment 3 39 Assembling needle plate B assy 3 39 Needle plate B assy attachment 3 39 Face plate assembly 3 40 Face plate assy attachment 3 40 Accessory table assembly and attachment 3 40 Needle presser module 3 41 Shaft bushing assembly attachment 3 42 Thread take up lever link assembly 3 42 Presser bar attachment 3 43 T cam attac...

Страница 8: ...B assy 3 66 Lower shaft B assy attachment 3 67 Supporting plate spring attachment 3 67 Grease applications 3 68 Vertical adjusting screw attachment 3 68 Feed bar attachment 3 69 Feed bar spring attachment 3 69 Outer rotary hook assy attachment 3 70 Inner rotary hook bracket assy attachment 3 70 Assembling F pulse motor assembly 3 70 FPM holder assy attachment 3 71 F gear teeth alignment 3 72 Sprin...

Страница 9: ...bbin winding and bobbin winding amounts adjustment 4 18 BH lever switch position adjustment 4 19 Forward and back adjustment of needle and presser 4 20 Knee lifter adjustment 4 21 Side feed line adjustment 4 22 One point pattern adjustment 4 23 Left and right feed dog position adjustment 4 24 Release adjustment 4 25 Front back left right position of feed dog adjustment 4 26 Feed dog height adjustm...

Страница 10: ...edle movement and reverse stitching 5 11 Does not operate when the foot controller is used 5 12 Thread tensioning does not go well 5 13 Thread cutter does not work normally 5 14 LCD display is not normal 5 15 LCD light does not come on 5 16 Bobbin winding cannot be done 5 17 The lamp at hand does not have light 5 18 6 Repair Manual 6 1 ...

Страница 11: ... Mechanisms 1 2 Driveline 1 3 Positions of electronic components 1 4 Control system block diagram 1 5 Main motor control 1 6 Pattern generator and thread cutter 1 7 Operation of other electronic components 1 8 Using the threader 1 9 ...

Страница 12: ...hanism Main Mechanisms Upper shaft mechanism Side feed mechanism Rotary hook drive mechanism Feed Rotary hook mechanism Thread cutting mechanism Bobbin winder mechanism Thread guide mechanism Needle bar Presser mechanism ...

Страница 13: ...ook stand Needle bar Needle Unit shaft Joint Upper shaft Pulley Needle bar supporter assy Z zigzag lever Needle bar release lever Z zigzag cam Z pulse motor Lower shaft gear Lower shaft b assy Joint Lower shaft A S pulse motor Side feed bar Timing pulley D Timing belt Side feed plate Upper shaft Feed arm A Outer rotary hook Feed bar Vertical adjusting screw Feed dog Feed arm b assy F pulse motor U...

Страница 14: ...pulse motor BH change switch assy BH switch lever PCB UNIT LED LAMP FL PCB UNIT LED LAMP FR Inlet assy F pulse motor S pulse motor C pulse motor PCB ASSY MAIN PCB ASSY OPERATION Power switch Foot controller jack Power supply unit f PCB ASSY NP LCD module LCD panel SW ASSY BW F PCB ASSY SS VR ...

Страница 15: ...R Power supply unit Inlet Switching power supply Main motor drive circuit CPU Main motor PCB UNIT LED LAMP FL LED white Z pulse motor F pulse motor Buzzer Constant current circuit Reset IC LCD module LCD panel Front cover SWASSY PF F SW ASSY BW F LED white PCB ASSY NP PCB ASSY SS VR LED 2 colors PCB UNIT LED LAMP FR PCB ASSY MAIN EEPROM NPSW ATCSW SSSW BKSW PCB ASSY OPERATION Key C pulse motor S p...

Страница 16: ...y at low speeds and high speeds even with load temperature and other changes Therefore the main motor is run by PMW control that makes use of FETs Motor voltage waveform Approx 50 µsec Power on area Fig 1 Outline of pulse width modulation PWM control Low speed Middle speed High speed ...

Страница 17: ... has been driven by the rotation of the lower shaft However in this machine the thread cutter mechanism is driven by the rotation of an independent pulse motor to make for greater accuracy in thread feed Since high positioning precision and response speed are required of the pulse motor a PM pulse motor is used and a simple open loop circuit configuration is used Pattern generator control block di...

Страница 18: ...H buttonhole switch This switch is for detecting the forward and rear ends of the button hole according to the BH presser and lever BH button hole lever switch This switch detects whether the BH lever is up or down NP sensor This sensor detects the pulse motor drive timing for zizag feed and thread cutting as well as the vertical stop position of the needle It detects the upper shaft angle of rota...

Страница 19: ... thread and needle combinations that are not in the table or those marked with an x 2 Since combinations marked with an asterisk have a greater possibility of damaging the threader or not working properly do your best to encourage users to avoid them 3 When using the threader lower the presser 4 When transparent nylon thread is used use a 14 16 sewing machine needle regardless of what is in the ta...

Страница 20: ...1 10 ...

Страница 21: ...in winder mechanism 2 22 Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy location diagram 2 26 Needle bar presser mechanism Upper shaft mechanism 2 29 Modules Needle presser module 2 33 Feed and bobbin module 2 44 Thread cutter module 2 52 With the CD ROM version click to start the movie clip ...

Страница 22: ...2 2 Main parts location diagram Main unit ...

Страница 23: ... and disassembly 1 Remove the screw 1 and remove the face plate 1 2 Remove the needle thread lever knob 2 3 Remove the CS5 retaining ring 3 and remove the NT lower thread cutter 4 4 Remove the screw 2 and the screw 3 and remove the shaft presser plate and washer 5 5 Remove 6 Remove the needle thread lever shaft 6 7 Remove the needle thread lever 7 from the needle thread lever shaft 6 and remove th...

Страница 24: ...sion only 1 1 5 Needle plate B removal and disassembly 1 Remove the needle plate cover 1 2 Remove needle plate B 2 3 Remove the cutter cover 3 4 Remove the spring plate 4 from the cutter cover 3 and remove the NT lower thread cutter 5 Undo the slide button hook two locations and remove the slide button 5 Start movie clip CD ROM version only 1 2 3 4 5 ...

Страница 25: ...hooks 2 2 locations from the base plate 6 Unplug the flat cable from the main F3 PCB assy and remove the front cover NOTE Do this so as to avoid damage to the PCB unit LED lamp FR Start movie clip CD ROM version only 2 1 2 locations 2 2 locations 1 3 7 Front cover disassembly operation PCB holder removal 1 Remove the SS VR F PCB assy connector 1 2 Undo the hooks 2 4 locations and remove the indica...

Страница 26: ...e CN3 connector 3 4 Remove the screws 1 four and remove the operation F3 PCB assy and rubber keys 1 1 1 3 2 4 9 LCD panel removal 1 Remove the screws the screws 1 two and detach the LCD panel 1 and board pressers two 1 1 10 Front cover disassembly bobbin winder guide assembly removal 1 Remove the screw 1 and remove the bobbin winder guide assembly 1 1 1 ...

Страница 27: ...ol pin 3 Start movie clip CD ROM version only 1 2 1 3 2 12 Front cover disassembly SS VR F PCB assy removal 1 Remove the screw 1 and remove LED lamp holder R supporter 1 2 Remove the screws 2 four and remove the insulation sheet 2 and the SS VR F PCB assy 3 3 Undo the PCB unit LED lamp FR connector 4 Remove the reverse button 4 SS button 5 and thread cut button 6 Start movie clip CD ROM version on...

Страница 28: ...14 Rear cover removal 1 Lower the presser lever and pull the cord in the cord real assembly out approximately 5 cm 2 Remove the screw 1 3 Undo the hooked places 1 and remove the rear cover Start movie clip CD ROM version only 1 1 15 Handle removal 1 Remove the screws 1 two and remove the handle 1 2 Remove the retaining rings E4 two from the handle shafts and remove the handle 1 the handle shafts t...

Страница 29: ...2 9 Disassembly Electrical parts and motors location diagram Main unit ...

Страница 30: ...onnector 2 3 Disconnect the inlet assy connector 3 4 Remove the screws 1 three and remove power supply unit F 4 Start movie clip CD ROM version only 1 4 3 2 1 2 Assy pin jack F removal 1 Remove the nut 1 and remove the assy pin jack F 2 2 1 3 Wire assy removal 1 Remove retaining ring E3 2 Loosen nut M8 1 and remove the wire assy 2 Retaining ring E3 2 1 ...

Страница 31: ... unit LED lamp FL 1 Start movie clip CD ROM version only 1 1 5 Base plate sub assy removal 1 Remove the screws 1 three and remove the base plate sub assy 1 Start movie clip CD ROM version only 1 1 6 Knee lifter assy removal 1 Remove the screws 1 five and remove the knee lifter assy 1 1 1 1 7 Base plate cover removal 1 Remove the screws 1 four and remove the base plate cover 1 1 1 1 ...

Страница 32: ...screw assy 2 1 1 2 9 Timing belt motor belt removal 1 Remove timing belt 1 Start movie clip CD ROM version only 1 10 Motor fan removal 1 Remove motor fan 1 NOTE Be careful not to bend the fins of the motor fan 1 Start movie clip CD ROM version only 1 11 Main motor assembly removal 1 Remove the screws 1 two and remove the main motor assembly 1 Start movie clip CD ROM version only 1 1 ...

Страница 33: ...s 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 Remove the spacer 4x6 two from the fender rubber 3 1 2 4 3 1 13 Side feed mechanism removal 1 Remove screws 1 two and screws 2 two and remove the side feed unit and wire clip 1 2 ...

Страница 34: ...ust plate 2 washer side feed arm assy 3 and plate spring A 4 2 Remove the rubber 3 Remove screw 3 and remove the S stopper 5 4 Remove retaining ring E3 and remove the side feed plate 6 and side feed spacer 7 5 Remove and remove the side feed gear 8 6 Remove screws 4 two and remove the S pulse motor 9 3 4 5 1 2 1 2 8 Retaining ring E3 7 6 S41 9 4 3 S41 ...

Страница 35: ...oval 1 Remove the screw 1 and the screws 2 two and remove the main PCB assy 1 1 2 1 16 NP PCB assy removal 1 Remove the screws 1 three and remove the PCB holder 1 2 Remove the screws 2 two and remove the insulation sheet 2 and the NP PCB assy 3 from the PCB holder 1 2 3 1 1 2 ...

Страница 36: ...2 16 Thread tension mechanism location diagram Main unit ...

Страница 37: ... clip CD ROM version only S04 1 1 Top view S04 2 Tension plate removal 1 Remove retaining ring E2 and remove the 2 Remove the screw 1 and remove the tension pressure assy 1 the and the tension release cam 2 3 Remove the tension plate 3 and the spacer 4 4 Remove the screw the screw 2 Start movie clip CD ROM version only S02 1 2 S03 Retaining ring E2 1 2 3 4 S02 S03 ...

Страница 38: ...ove the screw 2 and remove the thread guide cover 2 1 1 2 2 4 Thread guide cover removal 1 Remove the thread guide cover 1 Key point Lift the protrusion 2 and slide to the right Start movie clip CD ROM version only 1 2 5 Thread release holder assy F removal 1 Remove the screws 1 two and remove the thread release holder assy 1 1 1 ...

Страница 39: ...D ROM version only 1 2 1 7 Thread guide shutter removal 1 Remove 2 Remove retaining ring E3 and remove the thread guide shutter 1 and the thread guide shutter link 2 Start movie clip CD ROM version only 2 S19 1 Retaining ring E3 Bottom view S19 8 Tension releaser link removal 1 Remove the retaining ring E3 and remove the tension releaser link 1 1 Retaining ring E3 Inside view ...

Страница 40: ...ead guide removal 1 Remove the screws 1 two and remove the thread guide 1 1 1 11 AT pulse motor removal 1 Remove the screws 1 two and remove the AT pulse motor 1 1 1 12 Thread tension gear removal 1 Remove the retaining ring E3 and remove the thread tension gear 1 thread tension gear cover 2 and spring 3 1 2 3 Retaining ring E3 ...

Страница 41: ...w 2 washer 5 tension disc washer 6 tension release plate assy A 7 washer 5 tension disk B 8 and tension disk A 9 Start movie clip CD ROM version only 3 1 1 5 S05 2 6 7 8 9 S05 14 Thread take up spring removal 1 Remove the screw 1 and remove the thread catching spring case 1 2 Remove the from the thread catching spring case 1 Start movie clip CD ROM version only 1 1 S11 S11 15 Thread guide wire rem...

Страница 42: ...2 22 Bobbin winder mechanism location diagram Main unit ...

Страница 43: ...d remove the bobbin winder cover 2 Start movie clip CD ROM version only 1 2 1 2 Bobbin base disassembly 1 Remove the bobbin thread cutter holder 1 2 Remove the NT lower thread cutters two 2 Start movie clip CD ROM version only 1 2 3 Bobbin presser removal 1 Remove the screw 1 and the 1 M3 nut 1 and remove the bobbin presser 2 1 2 1 ...

Страница 44: ...rew 1 and remove the bobbin winder assembly 1 1 1 5 BW holder supporter removal 1 Remove the screw 2 and remove the BW holder supporter 1 1 2 6 BW F SW assy removal 1 Remove the BW F SW assy 1 Key point Open the SW adjust plate 2 clip and remove it Start movie clip CD ROM version only 2 1 ...

Страница 45: ...BW shaft holder assembly 1 to the right 2 bobbin winding ON 2 Remove 3 Remove the BW shaft holder assembly 1 Start movie clip CD ROM version only S21 2 1 S21 8 Bobbin winder shaft stopper removal 1 Remove the screws 1 two and remove the SW adjust plate 1 and the bobbin winder shaft stopper 2 1 1 2 ...

Страница 46: ...2 26 Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy location diagram Main unit ...

Страница 47: ... and the screw 2 and detach the thread cutter module 1 2 1 Arm bed base 1 3 Feed module removal 1 Rotate the upper shaft and bring the needle bar to its highest point 2 Remove the screws 1 two and detach the feed module 1 and the disk 2 Key point Raise the needle bar to the top position Start movie clip CD ROM version only 1 1 2 4 Lower shaft A assy removal 1 Remove the screws 1 two and remove the...

Страница 48: ... shaft bushing 2 1 2 1 two 6 Timing pulley D removal 1 Remove the screws 1 three 2 Remove retaining ring E6 and remove timing pulley D 1 1 Retaining ring E6 1 three 7 Lower shaft bushing removal 1 Remove the screws 1 two and remove the set screw collar 1 thrust washer 2 lower shaft bushing 3 and thrust washer 2 2 Remove the retaining rings E6 two Retaining ring E6 3 2 1 two 1 ...

Страница 49: ...2 29 Disassembly Needle bar presser mechanism Upper shaft mechanism location diagram Main unit ...

Страница 50: ... the timing belt 3 and the upper shaft 4 4 Remove the fixed joint 1 from the upper shaft 4 Start movie clip CD ROM version only 2 4 3 1 1 four 2 two 3 2 Pulley removal 1 Remove the pulley 1 Start movie clip CD ROM version only 1 3 Upper shaft pulley removal 1 Remove retaining ring E6 and remove the upper shaft pulley 1 1 Retaining ring E6 4 Tension pulley assembly removal 1 Remove the screw 1 and ...

Страница 51: ...ws 2 four and detach presser plate A 1 and presser plate B 2 3 Remove the needle presser module 3 4 Detach the shaft 4 from the needle presser module 3 Start movie clip CD ROM version only 1 1 4 2 3 2 Rear view 6 Wire assy removal 1 Remove retaining ring E3 2 Remove retaining ring E4 and remove the wire assy 1 Retaining ring E3 Retaining ring E4 1 ...

Страница 52: ...2 32 Needle bar presser mechanism Upper shaft mechanism Main unit 7 Plate spring removal 1 Remove the adjusting screw 1 2 Remove the screws 1 two and remove the plate spring 1 1 1 1 Rear view Front view ...

Страница 53: ...2 33 Disassembly Needle presser module breakout diagram Modules ...

Страница 54: ...l 1 Remove the screw 1 and detach the presser feed holder assy 1 1 1 3 Adjusting plate assy removal 1 Remove the screws 1 two and remove the adjusting plate assy 1 1 1 4 Adjusting plate assy disassembly 1 Remove the retaining ring E3 and detach the tension releaser C 1 2 Remove the screws 1 two and detach wire guide plate U 2 1 2 Retaining ring E3 1 ...

Страница 55: ...moval 1 Remove the screw 1 and remove the zigzag adjusting nut 1 1 1 7 Lever A spring spring needle bar hook stand spring removal 1 Remove and S42 S10 S09 S09 S10 S42 8 Presser dial removal 1 Remove retaining ring E4 and presser dial 1 2 Remove the screw 1 and remove the spring plate 2 1 1 Retaining ring E4 2 ...

Страница 56: ... 1 and the screw 1 1 1 10 Release guide plate removal 1 Remove screws 1 two and remove the release guide plate 1 1 1 11 Needle bar assy removal 1 Remove screws 1 two 2 Remove the needle bar 1 needle thread block 2 needle bar hook stand assy 3 thrust washer and 1 3 1 S43 2 S43 ...

Страница 57: ...eedle block 2 3 2 1 1 2 13 Release lever removal 1 Remove 2 Remove screw 1 and remove the release lever 1 release lever shaft 2 and polyester slider 3 Remove screws 2 two and remove the release adjuster 3 from the release lever 4 Remove retaining ring E2 from the release lever shaft 1 3 2 S40 2 1 S40 14 Needle holder shaft block removal 1 Remove the screw 1 and remove the needle holder shaft block...

Страница 58: ... 1 2 2 3 4 16 Hook release plate removal 1 Remove the screw 1 and detach the hook release plate 1 1 1 17 Threader hook assy disassembly 1 Remove the thread guide assy threader hook assy link A assy and link B Start movie clip CD ROM version only 18 Lever AB assy removal 1 Remove retaining ring E2 2 Remove the screw 1 and remove the lever guide shaft 1 lever presser plate 2 and lever AB assy 3 3 Re...

Страница 59: ...g ring E3 S08 20 Shaft bushing A removal 1 Remove the screw 1 and detach shaft bushing A 1 1 1 21 Thread guide plate removal 1 Remove thread guide pate 1 1 22 Thread take up assy disassembly 1 Remove the screw 1 and detach the thread take up lever assy 1 NOTE The screw 1 is reverse threaded 2 Remove the screws 2 two and detach the needle bar crank rod assy 2 Start movie clip CD ROM version only 1 ...

Страница 60: ... 1 Remove retaining ring E4 2 Remove the presser lift shaft 1 presser foot lifter 2 lifter assy 3 and washer 4 3 Remove retaining ring E4 from the presser lift shaft 1 3 Retaining ring E4 4 1 2 25 Z pulse motor removal 1 Remove the screw 1 and detach the Z pulse motor ZPMSMJ35 4840 A 1 1 1 26 Z zigzag lever and thread releaser assy removal 1 Remove retaining ring E3 2 Detach the Z zigzag lever 1 a...

Страница 61: ... thread release lever assy 1 and the polyester slider 1 Retaining ring E3 28 Remove the Z zigzag cam and shaft 1 Remove retaining ring E2 and remove the Z zigzag cam 1 2 Remove the shaft 2 Start movie clip CD ROM version only 1 Retaining ring E2 2 29 T cam removal 1 Remove the T cam 1 Start movie clip CD ROM version only 1 ...

Страница 62: ... the presser bar bushing 3 Start movie clip CD ROM version only 2 3 1 S07 2 1 S07 31 Thread take up lever link removal 1 Remove the screw 1 2 Remove retaining ring E4 and remove the shaft 1 and thread take up lever link 2 Start movie clip CD ROM version only 2 Retaining ring E4 1 S06 1 S06 32 Shaft bushing assembly removal 1 Remove the screws 1 two and remove the shaft bushing assembly 1 1 1 ...

Страница 63: ...2 43 Needle presser module Modules Disassembly 33 Presser dial gear removal 1 Remove the presser dial gear shaft assy 1 and remove the presser dial gear 2 1 2 ...

Страница 64: ...2 44 Feed and bobbin module breakout diagram Modules ...

Страница 65: ...the screws 1 two and remove needle plate A 1 1 1 2 Needle plate A disassembly 1 Remove the screws 1 two and remove the F gear stopper plate 1 and the stopper plate 2 1 2 1 3 Feed dog removal 1 Remove the screws 1 two and remove the feed dog 1 1 1 4 FPM spring removal 1 Remove S16 S16 ...

Страница 66: ... 2 Remove the rubber from the FPM holder assy 2 Start movie clip CD ROM version only 1 2 1 7 Inner rotary hook bracket assy removal 1 Remove the screw 1 and remove the inner rotary hook bracket assy 1 1 1 8 Outer rotary hook assy removal 1 Remove the screw 1 and remove the outer rotary hook shaft 1 spacer 2 outer rotary hook assy 3 washer 6 4 and the spacer 5 NOTE Spacer and washer 6 attachment or...

Страница 67: ...move the screws 1 two and remove the feed bar shaft A 1 two 2 Remove the feed bar 1 1 11 Vertical adjusting screw removal 1 Remove the vertical adjusting screw 1 2 Remove the M5 nut 2 from the vertical adjusting screw 1 Start movie clip CD ROM version only 2 1 12 Feed supporting plate spring removal 1 Remove S12 S12 ...

Страница 68: ...sser A 2 3 Remove the lower shaft B assy 3 4 Remove the bushing supporter A 4 from the feed base Start movie clip CD ROM version only 1 1 2 2 3 4 14 Lower shaft B assy disassembly 1 Remove retaining ring E6 and remove the thrust washer 1 lower shaft bushing 2 and thrust washer 1 2 Remove the screws 1 two and remove the set screw collar 3 2 1 Retaining ring E6 1 3 ...

Страница 69: ...CD ROM version only 1 1 Retaining ring E5 Bottom view 16 Feed arm assy disassembly 1 Remove the retaining ring E3 and remove feed arm B assy 1 and the polyester slider 2 Remove the retaining ring E2 and remove the feed supporting plate assy 2 from the feed arm B assy 1 Start movie clip CD ROM version only 1 Retaining ring E3 1 2 Retaining ring E2 17 Stopper plate block assy removal 1 Remove the sc...

Страница 70: ...upporter assy 1 feed adjuster assembly 2 and polyester slider Start movie clip CD ROM version only 2 1 1 2 S14 1 S14 19 Feed adjuster assembly disassembly 1 Remove and detach the F gear 1 1 S13 S13 20 Bushing presser B removal 1 Remove the screws 1 three and remove bushing presser B 1 and the lower shaft bushing 2 1 1 2 ...

Страница 71: ...ter slider set screw collar 4 2 and 3 Remove retaining ring E3 from the vertical feed shaft 1 Start movie clip CD ROM version only 1 S18 1 Retaining ring E3 2 Retaining ring E3 S18 23 Drop knob removal 1 Remove the screws 1 and remove the spring plate 1 2 Remove retaining rings E2 two and remove slide shafts B 2 two and the drop knob 3 3 Remove retaining rings E2 two from the slide shafts B 2 two ...

Страница 72: ...2 52 Thread cutter module breakout diagram Modules ...

Страница 73: ...ssy removal 1 Remove the screws 1 two and remove the thread cutter frame assy 1 collars 2 two and polyester slider 1 1 2 2 2 Presser plate removal 1 Remove the screw 1 and detach the presser plate and spring plate 1 1 1 3 Pile 4 x 8 removal 1 Remove the pile 4 x 8 1 2 1 ...

Страница 74: ...and remove the thread hook assy 1 polyester slider 2 and NT lower thread cutter 3 2 Detach the spacer 4 2 Retaining ring E4 1 4 3 5 Rubber removal 1 Remove retaining ring E2 and remove the rubber 1 1 Retaining ring E2 6 Thread cutter lever assy removal 1 Remove the thread cutter lever assy 1 1 ...

Страница 75: ...rew 1 and remove the thread cutter lever gear 1 1 1 8 Idle gear A and idle gear B removal 1 Remove the retaining ring E2 and remove idle gear A 1 idle gear B 2 and the spring 3 Retaining ring E2 1 2 3 9 C pulse motor removal 1 Remove the screws 1 two and remove the C pulse motor CPMSMJ35 4840 B 1 1 1 ...

Страница 76: ...2 56 Thread cutter module Modules ...

Страница 77: ...ism upper shaft mechanism 3 2 Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy 3 7 Bobbin winder mechanism 3 12 Thread tension mechanism 3 16 Electrical parts and motors 3 24 Main parts 3 33 Modules Needle presser module 3 41 Feed module 3 60 Thread cutter module 3 74 cWith the CD ROM version click to start the movie clip ...

Страница 78: ...3 2 Needle bar presser mechanism upper shaft mechanism location diagram Main unit ...

Страница 79: ...nt Tighten adjusting screw 2 so that the screw threads are completely hidden 1 Torque 1 18 1 57 N m 1 2 1 Front view Rear view Screw Bind M4X5 Color Silver 2 Wire assy attachment lifter assy 1 Insert the fitting 1 on the spring side on the end of the wire assy into the wire holder 2 on the lifter assy and attach retaining ring E4 2 Attach the hook 3 on the end of the wire assy to the lifter assy s...

Страница 80: ...g the screws 1 two 5 Attach presser plate B 6 using the screws 1 two 6 Hand start the screw 2 4 12 Fully tighten after Clearance between the needle and the rotary hook point adjustment Start movie clip CD ROM version only 1 Torque 1 47 1 98 N m 2 Torque Hand tighten 2 2 3 1 Retaining ring E5 1 2 6 5 4 Rear view Taptite Bind S M4X10 Color Gold Screw Pan M3X20 Color Silver 4 Upper shaft pulley attac...

Страница 81: ...pper shaft assy attachment 1 Attach the fixed joint 1 to the upper shaft Key point Attach so that the fixed joint 1 screw holes are toward the left side 2 Place the timing belt 2 around the upper shaft pulley 3 and insert the upper shaft assembly 4 3 Attach the bushing presser 5 using the screw 1 Key point Move the fixed joint 1 to the left side of the upper shaft Start movie clip CD ROM version o...

Страница 82: ... to 0 5 mm Align the screw holes for the screw 1 with the D cuts 1 and 2 3 Rotate the upper shaft 4 180 degrees and screw the screws 2 four into the fixed joint 3 4 Tap the lower shaft bushing 5 on lightly so that the upper shaft 4 turns easily Start movie clip CD ROM version only Needle bar and presser unit assy and fixed joint gap 0 5 mm 1 Torque 1 37 1 79 N m 2 Torque 0 78 1 18 N m 1 0 5 mm gap...

Страница 83: ...3 7 Assembly Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy location diagram Main unit ...

Страница 84: ...A and attach retaining ring E6 3 Hand start the screws 1 three in timing pulley D 1 Fully tighten after 4 8 Needle bar rise adjustment Key point With the lower shaft A D cut 2 facing forward secure using one of the three screw holes in timing pulley D 1 in the forward facing position Start movie clip CD ROM version only 1 Torque Hand tighten Face forward Retaining ring E6 2 1 1 Retaining ring E6 S...

Страница 85: ...ng belt 3 to timing pulley D 4 3 Attach the bushing pressers two using the screws 1 two Start movie clip CD ROM version only 1 Torque 1 47 1 98 N m 1 2 Lower shaft pulley base line 5 4 3 1 Taptite Bind S M4X10 Color Gold 5 Tension pulley assembly attachment 1 Hand start the screw the screw 1 in the tension pulley and attach to the arm bed fully tighten after 4 6 Timing belt tension adjustment Star...

Страница 86: ...e needle bar should be at the highest point The solid circle mark on the outer rotary hook should be forward Feed module side D cut in lower shaft B is directly above 5 Attach the screws 1 two Key point While holding the feed module against the bottom tighten the screw 1 on the left 6 Move the lower shaft A joint to the left and fully tighten the screws 2 two Start movie clip CD ROM version only A...

Страница 87: ...w 2 Start movie clip CD ROM version only 1 Torque 1 18 1 57 N m 2 Torque 0 78 1 18 N m 2 1 1 Bottom view Screw Bind M4X5 Color Silver Screw Bind M3X5 Color Silver 8 Leadline guide holder attachment 1 Attach the leadline guide holder 1 to the feed module using the screws 1 two Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Screw Bind M3X4 Color Silver ...

Страница 88: ...3 12 Bobbin winder mechanism location diagram Main unit ...

Страница 89: ...on only 1 Torque Hand tighten 2 1 1 3 Taptite Bind B M3X6 Color Gold 2 BW shaft holder assembly attachment 1 Attach the BW shaft holder assembly 1 to the bobbin winder assembly holder 2 Attach to the BW shaft holder assembly 1 and bobbin winder assembly holder Key point Set the BW shaft holder assembly 1 to the right sewing machine on Start movie clip CD ROM version only S21 2 3 1 S21 S21 BOBBIN W...

Страница 90: ...een the BW shaft holder assembly 1 and the BW F SW assy 2 is 2 5 0 3 mm and fully tighten the screw 2 Start movie clip CD ROM version only 1 Torque 1 18 1 57 N m 2 Torque 0 78 1 18 N m 1 1 2 2 1 2 5 0 3mm 2 Screw Bind M4X8 Color Silver Screw Bind M3X6 Color Silver 6 Bobbin presser assembly 1 Attach the bobbin presser 1 to the bobbin winder cover 2 using the screw 1 and a type 1 M3 nut Key point Se...

Страница 91: ...ly 1 Torque 0 78 1 18 N m 1 1 Screw Bind M3X6 Color Silver 8 Bobbin base assembly 1 Attach the NT lower thread cutters two and the bobbin thread cutter holder 2 to the bobbin base 1 Start movie clip CD ROM version only Blade side Blade side 2 1 9 Bobbin base attachment 1 Attach the bobbin base 1 to the bobbin winder shaft 2 Start movie clip CD ROM version only 2 1 2 1 ...

Страница 92: ...3 16 Thread tension mechanism location diagram Main unit ...

Страница 93: ...t See the figure to the right for positioning 0 0 5 20 1 0 3 0 0 5 2 1 2 Thread guide wire attachment 1 Attach the thread guide wire 1 and washer 2 using the screw 1 Key point While holding the thread guide wire 1 up tighten the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 2 Screw Pan S P washer M3X6 Color Silver ...

Страница 94: ...pring case 4 two locations 2 Attach the thread catching spring case 1 to the thread guard assembly 6 using the screw 1 Key point Align the protrusions 5 two on the bottom of the thread catching spring case 1 with the oval hole in the thread guard assembly 4 and turn clockwise to the end of the hole to attach Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m S11 1 S11 3 2 6 1 4 5 S11 S11 ...

Страница 95: ...to the tension plate assy Key point The tension adjusting screw 6 should be screwed in so that the tip protrudes approximately 0 5 mm from the right of the tension plate assy 7 3 Attach the rubber 8 to the initial adjusting plate 9 4 Install screw 1 into the initial adjusting plate 9 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m S05 7 9 1 3 S05 6 5 4 2 1 8 S05 Screw Bind M3X4 Color S...

Страница 96: ...clockwise until the large holes 5 in the thread tension gear 1 and thread tension gear cover 3 are on top of each other and attach the thread tension gear assembly 1 2 3 4 5 Retaining ring E3 7 Plate assembly attachment 1 Attach the plate assembly 1 using the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Screw Bind M3X4 Color Silver 8 Thread guide attachment 1 Attach the ...

Страница 97: ...hutter link 2 to the tension release holder assy and attach retaining ring E3 3 Attach to the thread guide shutter link 2 and the tension release holder assy Start movie clip CD ROM version only S19 2 1 Retaining ring E3 S19 S19 16 SPRING XC2650 11 PF F SW assy assembly 1 Attach the PF F SW assy 1 and presser switch holder 3 to the thread release holder assy 2 using the screw 1 Key point Align the...

Страница 98: ...all the screw 1 in the tension release cam 3 5 Hand start the screw 2 in the tension pressure assy 2 after assembly perform 4 15 Fine tension adjustment 6 Attach to the tension release holder assy shaft and attach retaining washer E2 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 2 Amount screw should be tightened Screw head should protrude 0 2 5 0 mm S02 S03 Retaining ring E2 2 3 S03...

Страница 99: ...que 0 78 1 18 N m 2 2 1 1 2 Taptite Bind B M3X6 Color Gold Screw Pan S P washer M3X6 Color Silver 16 Thread tension assy attachment 1 Attach the thread tension assy F2 1 using the screws 1 two Key point For the position of the thread release lever assy A 2 see the diagram to the right 2 Attach to the tension release holder shaft and tension release plate C 3 on the needle presser module Start movi...

Страница 100: ...3 24 Electrical parts and motors location diagram Main unit ...

Страница 101: ... N m 2 Torque 0 78 1 18 N m 2 3 1 1 2 Taptite Bind B M3X8 Color Gold Screw Bind M4X8 Color Silver 2 Main PCB assy attachment 1 Attach the main PCB assy 1 to the PCB holder and arm bed using the screws 1 two and the screw 2 Key point Fully tighten the screw 1 in the PCB assy holder holes four in the two locations on the right side Start movie clip CD ROM version only 1 Torque 0 59 1 78 N m 2 Torque...

Страница 102: ...tch marks on the side feed gear and the S pulse motor gear 4 Attach the rubber 5 Attach the S stopper 5 using screw 2 6 Attach the side feed arm assy 6 and plate spring A 7 using screw 3 7 Attach the side feed adjust plate 8 washer and plate spring B 9 using screw 4 1 Torque 0 79 1 18 N m 2 3 Torque 0 79 1 18 N m 4 Torque 0 79 1 18 N m S41 1 1 2 Retaining ring E3 4 3 S41 5 2 6 7 3 9 4 8 S41 Screw ...

Страница 103: ...der rubber 1 2 Attach the fender rubber 1 to the motor holder 3 3 Attach the main motor and the motor spacer presser 4 to the motor holder 3 using the screws 1 two Start movie clip CD ROM version only 1 Torque 1 18 1 57 N m 1 4 2 3 Red lead wire 1 Screw Pan S P washer M4X14 Color Silver 6 Main motor assembly attachment 1 Attach the timing belt 1 to the upper shaft timing pulley and the motor pulle...

Страница 104: ...t With the base plate on a flat board adjust the regulator adjusting screw assy 1 so that the regulator adjusting screw assy 1 and the base rubbers A four are uniformly in contact with the surface 1 Torque 0 59 0 78 N m 2 1 1 Screw Bind M3X14 Color Gold 9 Base plate cover attachment 1 Attach the base plate cover 1 to the base plate with the screws 1 four 1 Torque 0 78 1 18 N m 1 1 1 Screw Bind M3X...

Страница 105: ...on the end of the wire assy side with two M8 nuts on it to the wire holder 2 on the knee lifter assy and hand tighten the M8 nut 3 on the lower side Fully tighten after 4 21 Knee lifter adjustment 2 Attach the hook 4 on the end of the wire assy to the knee lifter assy shaft and attach retaining ring E3 1 3 2 3 4 13 Power supply unit F attachment 1 Attach power supply unit F 1 to the arm bed using ...

Страница 106: ...edle presser module using the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Taptite Pan B M4X12 Color Gold 15 Wire clip attachment 1 Attach the wire clips four in three locations using the screws 1 three Start movie clip CD ROM version only 1 Torque 1 47 1 96 N m 1 1 Taptite Bind S M4X10 Color Gold ...

Страница 107: ...bind to the other leads with a band 7 Fasten the lead bundle with the wire clip on the middle of the back of the arm bed and pass to the front of the arm bed from the lead assy guide of power supply unit F 8 Run the BW F SW assy 2 leads to the front of the arm bed from the lead assy guide of power supply unit F 9 Pass the C pulse motor leads to the inside of the feed module leadline guide holder 1...

Страница 108: ...er 1 Connect the BH lead assy leads 1 red connector to CN3BH on the main PCB assy 2 Attach the PF F SW assy leads 2 white connector to CN4POT on the main PCB assy F 3 Connect the BW F SW assy leads 3 black connector to CN6BW on the main PCB assy 4 Pass the NP PCB assy leads 4 white connector above the BH presser and BW leads and connect to CN2 5 Connect PCB Unit LED lamp FL leads 5 yellow connecto...

Страница 109: ...3 33 Assembly Main parts location diagram Main unit ...

Страница 110: ...cover attachment 1 Lower the presser foot lifter and pull the power cord out approximately 20 cm 2 Attach the rear cover Key point First insert the rear cover hook 1 into the base plate 3 Secure the rear cover to the arm bed with the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Screw Bind M4X8 Color Silver 3 Front cover assembly SV keytop attachment 1 Attach the SV joint...

Страница 111: ...te Bind B M3X8 Color Gold 5 Front cover assembly LED lamp FR attachment 1 Attach the PCB unit LED lamp FR connector 1 to the SS VR F PCB assy 2 2 Cover the PCB unit LED lamp FR leads 1 with the SS VR insulation sheet 3 and attach the SS VR F PCB assy 2 to the front cover using the screws 1 two 3 Attach the PCB unit LED lamp FR 1 to the front cover and attach the LED lamp holder R supporter 4 using...

Страница 112: ...te Cup B M3X10 Color Gold Taptite Bind B M3X8 Color Gold 7 Front cover assembly assembling bobbin winder guide assembly 1 Attach the bobbin winder guide assembly 1 to the front cover 2 Hand start the screw 1 Fully tighten after 4 18 Bobbin winder adjustment Start movie clip CD ROM version only 1 Torque 0 57 0 78 N m 1 1 Screw Pan S P washer M3X8DA Color Gold 8 LCD panel attachment 1 Attach the LCD...

Страница 113: ... 5 on both sides of CN1 downward 4 Connect the LCD panel connector to CN3 6 on the operation F3 PCB assy 1 Torque 0 57 0 78 N m 3 1 2 1 1 6 4 5 Taptite Bind B M3X8 Color Gold 10 Front cover assembly attaching the operation PCB holder 1 Attach the operation PCB holder 1 to the front cover using the screws 1 four 2 Attach the SS VR F PCB assy connector 2 to the operation F3 PCB assy Key point Press ...

Страница 114: ...in the thread guard assembly 5 Attach the screws 2 two 6 Attach the screw 3 NOTE Attach so that the flat cable is not shifted to the left or right Start movie clip CD ROM version only 1 Torque 0 57 0 78 N m 2 Torque 0 78 1 18 N m 3 Torque 0 78 1 18 N m 3 4 2 3 1 1 2 Screw Pan S P washer M3X6F Color Silver Taptite Cup B M4X14 Color Silver Taptite Cup B M4X20 Color Silver 12 Front thread guide cover...

Страница 115: ...B assy 1 Attach the slide button 1 to needle plate B 2 2 Attach the NT lower thread cutter 3 and spring plate 4 to the cutter cover 5 3 Attach the cutter cover 5 to needle plate B 2 Start movie clip CD ROM version only 1 4 3 5 2 15 Needle plate B assy attachment 1 Attach the needle plate B assy 1 to the main unit 2 Attach the needle plate cover 2 to the needle plate B assy 1 Start movie clip CD RO...

Страница 116: ...e thread lever knob 6 1 Torque 0 57 1 78 N m 2 Torque 0 57 0 78 N m S01 1 2 4 3 S01 2 5 1 2 S01 S01 Taptite Pan B M3X6 Color Silver Taptite Bind B M3X10 Color Gold THREAD THROUGH LEVER SPRING 138260 23 4 17 Face plate assy attachment 1 Align and attach the hole 1 in the center on the inside of the face plate to the shaft 2 on the needle presser module 2 Secure the face plate assy to the arm bed wi...

Страница 117: ...3 41 Assembly Needle presser module breakout diagram Modules ...

Страница 118: ...rew Pan S P washer M4X14DB Color Silver 2 Thread take up lever link assembly 1 Attach the shaft 1 and thread take up lever link 2 to the upper unit holder and attach retaining ring E4 2 Install the screw 1 in the shaft 1 Start movie clip CD ROM version only Apply Molykote EM 30L grease all the way around the shaft hole in the thread take up lever link small amount S06 2 Retaining ring E4 1 1 S06 S...

Страница 119: ...M version only Apply Molykote EM30L grease to the sliding part of the presser bar clamp assy locking pin Small amount Lubricate the end of the presser bar with Sewing Lube Apply liberally to the end 1 Torque 0 78 1 18 N m 2 Torque Hand tighten S07 1 4 2 1 2 S07 3 Rear view Approx 50 mm S07 Taptite Bind B M3X8 Color Gold Set Screw Socket CP M5X10 Color Black 85 7 6 2 SPRING XC2448 4 T cam attachmen...

Страница 120: ... attach retaining ring E3 Key point The side of the thread release lever assy 2 with the hole 3 is the bottom Align the pin on the thread release lever assy 2 with the cam groove 4 in the T cam Start movie clip CD ROM version only Apply Molykote EM30L grease to the thread release attachment hole Small amount Apply Molykote EM30L grease to thread release assembly shaft B Small amount 4 1 3 2 Retain...

Страница 121: ...EM30L to the Z zigzag cam 1 gear part and cam part Start movie clip CD ROM version only Apply Molykote EM30L grease to all of the sliding part of the Z zigzag cam pin Small amount Apply Molykote EM30L grease to all of the Z zigzag cam Small amount Apply Molykote EM30L grease all around the Z zigzag cam gear Small amount 4 3 1 Retaining ring E2 10 Thread releaser assy attachment 1 Apply Molykote EM...

Страница 122: ...2 3 12 Thread take up counter weight attachment 1 Attach retaining ring E6 to the unit shaft 1 2 Attach the thrust washer 2 unit shaft 1 thrust washer 2 to the shaft bushing assembly 3 3 Attach the thread take up counter weight 4 using the screws 1 two Key point Align the screw hole 5 in the thread take up counter weight and the unit shaft D cut surface 6 4 Lubricate part 7 of the shaft bushing as...

Страница 123: ...e up counter weight screw hole 6 3 Attach the thread take up lever assy 7 to the needle bar crank rod assy 3 and thread take up lever link 8 Key point The screw 2 is reverse threaded Start movie clip CD ROM version only Apply Molykote EM30L grease to the needle bar crank Small amount Apply Molykote EM30L grease to the thread take up lever Small amount Apply Molykote EM30L grease to the to the need...

Страница 124: ...o the hole 2 in the thread releaser assy and attach the washer 3 lifter assy 4 and presser foot lifter 5 4 Attach retaining ring E4 to the presser lift shaft 1 Apply Molykote EM30L grease to the operating surface of the presser lifter shaft presser foot lifter Small amount Apply Molykote EM30L grease to the operating surface of the presser foot lifter presser bar clamp Small amount 1 2 Retaining r...

Страница 125: ...aft A 5 to the shape of the threader hook assy 1 shaft hole and attach the threader hook assy 1 to needle thread shaft A Start movie clip CD ROM version only 2 3 4 1 3 2 4 1 5 16 Hook release plate attachment 1 Attach the hook release plate 1 to the needle bar supporter assy 2 the screw 1 Start movie clip CD ROM version only 1 Torque 0 29 0 49 N m 2 1 1 Screw Bind M2 6X5 Color Silver ...

Страница 126: ... 1 Attach shaft bushing A 1 to the upper unit holder using the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Taptite Bind B M3X8 Color Gold 19 Assembling the Lever AB assy 1 Put the cap 2 on lever B 1 2 Attach lever B 1 and to the lever A assy and attach retaining ring E3 Start movie clip CD ROM version only S08 2 1 S08 Retaining ring E3 S08 4 4 5 TORSION SPRING XC2460 ...

Страница 127: ...e EM30L grease to the full width of the slide lever groove Small amount Apply Molykote EM30L grease to the operating surfaces of the lever B cap and the thread guide slider Small amount 1 Torque 0 78 1 18 N m 1 1 Retaining ring E2 3 Retaining ring E2 2 Taptite Bind B M3X6 Color Gold 21 Needle bar supporter assy attachment 1 Attach the needle bar supporter assy 1 to the upper unit holder Key point ...

Страница 128: ...e needle bar supporter assy needle roller 1 Key point The flat surface of the needle holder block is the bottom 3 Apply a small amount of Epnoc Grease AP to the shaft assy 3 shaft 4 Attach the shaft assy 3 to the needle holder block 2 and upper unit holder and hand start an the screw 1 Fully tighten after 4 11 Needle interference left right adjustment Start movie clip CD ROM version only Apply Epn...

Страница 129: ...ar 3 using the screw 2 Key point There should be no gap 5 on the right side of the needle bar thread guide 4 and needle block 2 There should be a 0 2 mm 0 5 mm gap on the left side of the needle bar thread guide 4 and needle block 2 Start movie clip CD ROM version only Gap on right side of needle bar thread guide and needle block None Gap on left side of needle bar thread guide and needle block 0 ...

Страница 130: ...approximately 2 mm When the needle thread block 1 is viewed from the front it is secured in a position turned slightly counterclockwise see 4 29 Adjust the needle thread block Start movie clip CD ROM version only Lubricate the needle bar crank joint area with Molykote Sewing Lube 90 Molykote dispersion 1 2 drops Apply Epnoc Grease AP to the sliding pin part of the needle thread block Small amount ...

Страница 131: ...4 Attach 1 Torque Hand tighten 2 Torque 0 79 1 18 N m S40 1 1 2 S40 2 2 S40 Screw Pan T washer M3X6 Color Silver Screw Pan S P washer M3X6F Color Silver RELEASE LEVER SPRING XC3448 2 9 3 6 28 Lock nut attachment 1 Attach the screw 1 to the lock nut 1 Key point The screw 1 in approximately half its length 2 Install the screw 1 in the upper unit holder Key point Tighten until the lock nut 1 hits the...

Страница 132: ...holder 2 Key point Connect the side with the short hook to the needle bar supporter assy plate 1 and the long side to the upper unit holder 2 2 Attach to the needle bar supporter assy plate 1 and release guide plate 3 Start movie clip CD ROM version only S10 S42 S10 2 1 S42 1 3 S10 S42 SPRING XC2429 24 5 SPRING XC6252 A decided hook form is the same 29 4 ...

Страница 133: ...l 2 hole 3 2 Attach the presser dial gear 4 Key point Align the presser dial gear 4 match mark 5 and the first indentation 7 from the top in the tension spring receiving gear 6 3 Attach the presser dial assy Key point Align the presser dial shaft assy 1 D cut 3 and the presser dial gear 4 D cut 4 Attach the spring plate 8 to the upper unit holder using the screw 1 1 Torque 0 78 1 18 N m 1 2 3 7 6 ...

Страница 134: ...only Apply Epnoc Grease AP to the zigzag adjusting nut Z zigzag lever contact surface Small amount 1 Torque 0 78 1 18 N m 1 1 Rear view Bolt Socket M4X25 Color Black 32 Spring Z attachment 1 Attach to the upper unit holder 1 and needle bar supporter assy 2 Start movie clip CD ROM version only S20 1 S20 2 S20 14 3 5 A decided hook form is the same SPRING Z XC2748 33 Adjusting plate assy assembly 1 ...

Страница 135: ...r shaft and the adjusting plate assy hole 1 1 Torque 1 18 1 57 N m 1 1 Taptite Bind B M4X10 Color Gold 35 Presser feed holder assy attachment 1 Attach the presser feed holder assy 1 to the presser bar using the screw 1 1 Torque 1 18 1 57 N m 1 1 Screw 3 57 Color Silver 36 BH switch assy attachment 1 Attach the BH switch assy 1 to the upper unit holder using the screw 1 Start movie clip CD ROM vers...

Страница 136: ...3 60 Feed module breakout diagram Modules ...

Страница 137: ...aining ring E2 Retaining ring E2 4 1 Inside view Outside Screw Bind M3X4 Color Silver 2 Drop assy assembly 1 Attach retaining ring E3 to the vertical feed shaft 1 2 Attach the vertical feed shaft assy 1 polyester slider 2 set screw collar 4 3 vertical lever 4 and to the vertical supporting plate 5 and attach retaining ring E3 3 Hand start the screw 1 in set screw collar 4 3 Fully tighten after 3 6...

Страница 138: ...he lower shaft bushing 1 with 1 2 drops of turbine oil 100 Start movie clip CD ROM version only Lubricate the lower shaft bushing round surface with turbine oil 100 1 2 drops 1 Torque 0 78 1 18 N m 3 2 S9 1 Screw Bind M4X5 Color Silver 5 Feed adjuster assembly 1 Apply a small amount of Epnoc Grease AP to the F gear 1 2 Align the F gear 1 and the feed adjuster assy 2 and attach Start movie clip CD ...

Страница 139: ... 4 using the screws 1 two Start movie clip CD ROM version only Lubricate the feed adjuster assembly shaft with turbine oil 100 1 2 drops Apply Epnoc Grease AP to the entire operating part of the feed adjuster feed regulator slide block Small amount 1 Torque 1 18 1 57 N m S14 3 S14 4 3 1 1 2 S14 S14 Screw Bind M4X6 Color Silver SPRING XC2531 8 8 9 9 5 5 7 Stopper plate block assy attachment 1 Attac...

Страница 140: ... drops of turbine oil 100 3 Attach the feed arm B assy 1 and polyester slider 3 to feed arm A 4 and attach retaining ring E3 4 Lubricate the feed arm B assy 1 with 1 2 drops of turbine oil 100 Start movie clip CD ROM version only Lubricate the feed supporting plate assy shaft with turbine oil 100 1 2 drops Lubricate the feed arm B assy with turbine oil 100 1 2 drops 1 Retaining ring E2 2 4 3 Retai...

Страница 141: ...he feed arm assy 5 with the feed base 4 and attach the horizontal feed shaft assembly 1 and polyester slider 6 4 Install the screw 1 5 Apply 1 2 drops of Sewing Lube to the horizontal feed shaft 1 Start movie clip CD ROM version only Lubricate the three operating areas of the horizontal feed shaft with Sewing Lube 1 2 drops each 1 Torque 1 18 1 57 N m 3 1 2 5 1 Retaining ring E5 4 6 1 Bottom view ...

Страница 142: ...ound surface facing the lower shaft bushing 3 2 Install the screws 1 two in the set screw collar 1 Key point Attach the set screw collar 1 in a position that allows the lower shaft bushing 3 to turn smoothly 3 Lubricate the lower shaft bushing 3 with 1 2 drops of Sewing Lube Start movie clip CD ROM version only Lubricate the lower shaft bushing with Sewing Lube 1 2 drops 1 Torque 0 78 1 18 N m 3 2...

Страница 143: ... knob 8 and so that the contact area of the vertical feed cam vertical lever 7 does not come off of the vertical feed cam 9 and fully tighten the screw 3 Start movie clip CD ROM version only Lubricate the lower shaft inserted side of bushing supporter assy with Sewing Lube 1 2 drops 1 Torque 1 18 1 57 N m 2 Torque 1 18 1 57 N m 3 Torque 0 78 1 18 N m 1 9 7 3 2 1 5 3 6 8 Leave gap 2 Screw Bind M4X1...

Страница 144: ...m surface Small amount Apply Epnoc Grease AP to the horizontal feed cam surface Small amount Apply Molykote EM30L grease to all of the teeth around the lower shaft gear Small amount 3 1 2 4 14 Vertical adjusting screw attachment 1 Attach the M5 nut 1 to the vertical adjusting screw 2 Key point Tighten the M5 nut 1 until the M5 nut 1 and the upper surface of the vertical adjusting screw 2 meet 2 At...

Страница 145: ... Apply Molykote EM30L grease to feed shaft holes in the feed bar Small amount Apply Molykote EM30L grease to feed bar shaft A Small amount Apply Molykote EM30L grease to feed bar shaft B Small amount 1 Torque 1 18 1 57 N m 2 3 3 4 1 1 4 Set Screw Socket CP M4X4 Color Black 16 Feed bar spring attachment 1 Attach to the feed bar 1 and vertical feed shaft 2 Key point Align the vertical rod 3 with the...

Страница 146: ...Sewing Lube Apply liberally 1 Torque 1 18 1 57 N m 1 1 2 3 4 5 3 1 7 6 Set Screw Socket CP M4X6 Color Black 18 Inner rotary hook bracket assy attachment 1 Align the inner rotary hook bracket assy 1 with the stopper plate block and hand start the screw 1 Fully tighten after 4 28 Inner rotary hook bracket position adjustment Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Screw Bind ...

Страница 147: ...and the screw 1 Key point To prevent the screw 1 from being tightened into the spacer at an angle tighten the screw 1 with compressed Tighten the screw 1 until the screw hole in the feed base comes approximately to the center of the hole 5 in the FPM holder assy 5 Hand start the screw 2 Fully tighten after 4 17 Feed adjustment Start movie clip CD ROM version only 1 2 Torque 0 27 0 48 N m S15 2 3 4...

Страница 148: ...r gear are touching hold the F pulse motor gear with your finger 6 so that it does not turn 4 Push the feed adjuster assy 4 until it and the F gear 7 have their gears aligned 8 5 With the gears 8 aligned push them down and mesh the feed adjuster assy 4 and F pulse motor gears Key point Check that the feed adjuster assy 4 gear match mark 9 and the F pulse motor gear match mark are together Start mo...

Страница 149: ...o Start movie clip CD ROM version only 1 Torque 0 57 1 78 N m 1 2 3 1 Screw Bind M2 6X3 Color Silver 24 Feed dog attachment 1 Attach the feed dog 1 and hand start screws the screws 1 two Fully tighten after 4 26 Front back left right position of feed dog adjustment Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 1 1 Screw Bind M3X8 Color Silver 25 Needle plate A assy attachment 1 Attac...

Страница 150: ...3 74 Thread cutter module breakout diagram Modules ...

Страница 151: ...ount 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 Key point Insert the spring 3 into the small holes 5 in idle gear A 2 and idle gear B 4 and turn idle gear A 2 clockwise until the large holes 6 in idle gear A 2 and idle gear B 4 overlap 7 With the large holes 6 aligned 7 align the match mark...

Страница 152: ...the thread cutter lever shaft 2 Attach the thread cutter lever assy 1 to the thread cutter lever shaft Key point Align the thread cutter lever 1 match mark 2 with the idle gear assy match mark 3 Start movie clip CD ROM version only Apply a small amount of Epnoc Grease AP to the thread cutter lever shaft Small amount 3 2 1 5 Rubber and spacer attachment 1 Attach the rubber 1 to the thread cutter fr...

Страница 153: ...presser plate 1 with a cloth soaked in alcohol 2 Attach the pile 4 x 8 2 2 1 8 Presser plate assy attachment 1 Attach the spring plate 1 and the presser plate assy 2 to the thread cutter frame 3 using the screw 1 Start movie clip CD ROM version only 1 Torque 0 78 1 18 N m 2 1 1 3 Screw Bind M3X4 Color Silver 9 Thread cutter check 1 Pull the thread hook assy 1 from the thread cutter frame assy 2 At...

Страница 154: ...se AP to the to the operating surfaces of the thread cutter lever gear and idle gears A and B Small amount Apply Epnoc Grease AP to the operating surface of thread hook pin A Small amount 2 1 3 11 Thread cutter frame assy attachment 1 Attach a polyester slider 1 to thread hook pin A 2 2 Attach the thread cutter frame assy 3 and collars 4 two to the motor holder assy 5 using the screws 1 two Key po...

Страница 155: ...nsion adjustment 4 14 Fine tension adjustment 4 15 Inner rotary hook lower thread tension adjustment 4 16 Feed adjustment 4 17 Bobbin winder uneven bobbin winding and bobbin winding amounts adjustment 4 18 BH lever switch position adjustment 4 19 Forward and back adjustment of needle and presser 4 20 Knee lifter adjustment 4 21 Side feed line adjustment 4 22 One point pattern adjustment 4 23 Left ...

Страница 156: ...4 2 Inspection Needle curvature 1 Check to be sure that there is no curvature in the needle on a level block horizontal block The gap with the block should be even ...

Страница 157: ...4 3 Inspection Inspection and Adjustment Tip damage to needle 1 Touch the tip of the needle to your finger and check to be sure it does not catch ...

Страница 158: ...t With the front cover in place Press SW1 and SW3 on the main PCB assy while turning the power on the buzzer will sound four times and test mode will start Starting and stopping operation Test mode selection screen With the front cover in place Press the switch With the front cover in place Press SW1 Return to test mode selection screen Press Main PCB assy ...

Страница 159: ...eed with each push of SW3 Feed forward and reverse With front cover in place Press five times select and press 100 stitches forward on the left base line 100 stitches reverse on the right baseline Switches low middle high speed with each push of the Without front cover in place SW3 Switches low middle high speed with each push of SW5 Feed dog position With front cover in place Press select and pre...

Страница 160: ...her M4X10 screw on the tension pulley assembly 2 With a force of 2 N 200 g pushing on the center of the belt adjust the tension pulley assembly position for a deflection of 3 4 mm 3 Tighten the pan S P washer M4X10 screw on the tension pulley assembly XC2277001 Push pull gauge 3 N ...

Страница 161: ... adjustment 1 Loosen the upset 4 x 12 DB two in the motor holder 2 With a force of 2 N 200 g pushing on the center of the belt adjust the motor pulley position for a deflection of 4 5 mm 3 Tighten the upset 4 x 12 DB two in the motor holder XC2277001 Push pull gauge 3 N ...

Страница 162: ...3 Turn the pulley by hand and set the needle bar at its lowest point 4 Draw a needle bar low point reference line on the needle bar supporter assy 5 Loosen the set screws socket FT M5X5 three on lower shaft pulley D 6 With the needle bar raised 2 9 3 3 mm from the needle bar low point reference line adjust by moving the lower shaft pulley D and lower shaft A assembly so that the right edge of the ...

Страница 163: ... once and move the needle bar to the left base line position 3 Remove the M4 screws two and remove needle plate A from the feed base 4 Hand turn the pulley until the right edge of the needle and the outer rotary hook tip meet 5 Loosen the set screw socket CP M4X4 in the needle bar hook stand assy 6 Adjust the height of the needle bar for 1 0 1 4 mm between the top of the needle hole and lower edge...

Страница 164: ...e 2 Press SW5 with the front cover in place press twice and select and press and select 3 point drop mode with each push of SW5 or the needle bar switches left base line center base line right base line 3 Turn the pulley by hand and insert the tip of the needle into the needle hole 4 Loosen the zigzag adjusting nut screw 3X10 5 Adjust the zigzag adjusting nut so that the left base line center base...

Страница 165: ...he pulley by hand and insert the tip of the needle into the needle hole 2 Loosen the screw 3X10 3 Adjust the needle holder shaft block to the left or right so that the left base line right base line needle drop is uniform forward and back with respect to the needle plate A hole 4 Tighten the screw 3X10 ...

Страница 166: ...front cover in place 2 Press SW5 four times with the front cover in place press twice and select and after pressing press three times and move the needle bar to the right base line position 3 Remove the M4 screws two and remove needle plate A from the feed base 4 Loosen the screw 3X20 5 Hand turn the pulley until the right edge of the needle and the outer rotary hook tip meet 6 Adjust the gap betw...

Страница 167: ...eedle plate A 3 Loosen the set screw CP M5X10 in the presser bar clamp assy 4 Adjust the height of the presser bar so that there is 6 0 6 5 mm between the top of needle plate A and the bottom of the presser NOTE Use the J presser Adjust the presser bar so that the needle plate feed dog hole and the presser are parallel to prevent slanting during serging and damage to the needle ...

Страница 168: ... thread guide tension plate tension disk plate assembly 4 Lower the presser foot lifter 5 Pull the thread with a tension gauge and adjust the thread tension adjusting screw depth for 0 3 0 35 N 30 35 g 6 Apply a small amount of screw locking compound to the thread tension adjusting screw Screw locking compound for thread tension adjusting screw Small amount XA9154001 Tension gauge 50 0 5 N ...

Страница 169: ... 1 Raise the presser foot lifter 2 Pass Schappe Spun Sewing Thread 60 through the thread guide tension plate 3 Lower the presser foot lifter 4 Pull the thread with a tension gauge and adjust the power lock 2x3 so that it is 0 08 0 11 N 8 11 g XA9153001 Tension gauge 30 0 3 N ...

Страница 170: ...ead tension adjustment 1 Set a bobbin wound with Schappe Spun Sewing Thread thread 60 in the inner rotary hook 2 Pull the thread with a tension gauge and adjust the spring adjusting screw so that it is 0 1 0 12 N 10 12 g XA9153001 Tension gauge 30 0 3 N ...

Страница 171: ...nd reverse mode 3 Press SW1 with the front cover in place and run Feed forward and reverse mode checking the forward and reverse feed amounts 4 Loosen the FPM holder assy screw 3 x 8 5 Adjust the forward and reverse feed using the FPM holder assy screw 4 x 25 Key point Confirm that when a material of two layers of broadcloth with paper in between is given 100 stitches forward and reverse Feed forw...

Страница 172: ...n winding amounts adjustment 1 Move the bobbin winder guide assembly up and down and adjust uneven bobbin winding 2 Turn the bobbin presser left and right and adjust the winding quantity Key point The target for the bobbin winding quantity is filling 80 90 of the diameter ...

Страница 173: ...r the BH lever and set to the BH presser 6 Rotate the BH eccentric shaft so that BH0 comes into contact with BH1 Key point With the presser foot lifter raised pull the BH presser forward as much as possible and check that BH0 comes into contact with BH2 and that BH2 has some deflection With the presser foot lifter raised push the BH presser back as much as possible and check that BH0 comes into co...

Страница 174: ... needle and presser 1 Turn the pulley by hand and insert the tip of the needle into the needle hole 2 Loosen the locknut 3 Adjust the needle tip to the front back center position of the needle hole using the set screw socket CP M4X12 4 Tighten the lock nut ...

Страница 175: ...ews two 3 With a load of 5N 500 g applied to the lifter adjust the lifter and presser feed holder space Key point Space between lifter and presser feed holder is 2 3 mm Adjust by the amount the upper adjusting screw is tightened 4 Tighten the lower adjusting screw the presser feed holder 2 3mm the lifter 5N 500g the adjustment screws ...

Страница 176: ...n should be oriented almost perfectly to the side The length of the upper side of the horseshoe pattern should be 26 31 mm 4 When the feed dog lateral position is center adjust the set screw collar in the feed module so that the vertical adjusting screw is almost perfectly vertical when viewed from the rear of the sewing machine 5 Adjust the up and down gap on the right side of the horseshoe to 4 ...

Страница 177: ...h one on top of the other on the sewing machine press to work with PATTERN ADJUSTMENT and check the shape of the one touch pattern 4 If there is doubling gaps or slippage in the one touch pattern select F feed correction value or S feed correction value using or and adjust using or F feed correction value S feed correction value Make a positive F correction Make a negative F correction Make a posi...

Страница 178: ...sition adjustment 2 Start test mode refer to 4 4 Test Mode for test mode startup methods 3 After pressing and selecting press and select FEED DOG POSITION 4 Press and set the left right feed dog position to center 5 Turn off the power and remove the front cover 6 Adjust the left right feed dog position Feed dog ...

Страница 179: ...2 Start test mode refer to 4 4 Test Mode for test mode startup methods 3 After pressing and selecting press and select RELEASE 4 Adjust the release adjuster up and down so that the moving part of the needle bar holder assy does not come into contact with the release guide plate Does not contact ...

Страница 180: ...erse and left right positions of the feed dog Key point Place a t 1 5 mm spacer between the feed bar and feed arm A Adjust the gap between the forward edge of the feed dog middle tooth and feed plate A front to back to 3 2 3 8 mm Adjust the left and right gaps between the feed dog and needle plate A to be approximately the same Make sure that the feed dog and needle plate A are not at an angle to ...

Страница 181: ...y the amount the vertical adjuster screw assembly is screwed in 4 Tighten the M5 nut being careful that the vertical adjuster screw assembly does not turn 5 With the feed dog in the lowest position check that the feed dog is 0 3 mm or more below the upper surface of needle plate NOTE When the feed dog is too high problems such as abnormal noise bad feed quantities and the cloth not being fed arise...

Страница 182: ...y hook in the outer rotary hook 2 Loosen the screw bind 3x8 securing the inner rotary hook bracket assy 3 Adjust the inner rotary hook bracket assy attachment position so that contact between the inner rotary bracket assy and inner rotary hook is 1 6 1 8 mm and secure with the screw bind 3x8 ...

Страница 183: ...ure the set screw socket FT 4 x 4 so that the position of the needle thread block set screw is seen to be slight to the left when viewed from the front Adjust so that the upper edge of the threading hook and the upper edge of the needle hole are at the same height NOTE If the needle thread block set screw position is too far to the left the hook will not operate and treading cannot be done Fig 1 I...

Страница 184: ...4 30 Adjustment Modules ...

Страница 185: ...n motor rotation abnormal 5 7 Cannot sew pattern well 5 8 Cannot sew button holes well 5 9 Stitch length and zigzag width cannot be done by manual adjustment 5 10 Problems with vertical needle movement and reverse stitching 5 11 Does not operate when the foot controller is used 5 12 Thread tensioning does not go well 5 13 Thread cutter does not work normally 5 14 LCD display is not normal 5 15 LCD...

Страница 186: ...voltages between pins 3 4 pins 5 4 and pins 6 7 of CN14 on the Main PCB assy F3D normal Pins 3 4 5 V DC Pins 5 4 26 V DC Pins 6 7 26 V DC N N Y Replace the SS VR F2 PCB assy Does the buzzer sound when the power is turned ON with the SS VR F2 PCB assy connector disconnected from the F2 PCB assy N Y Replace operation F3 PCB assy Does the buzzer sound when the power is turned ON with the operation F3...

Страница 187: ...or and S pulse motor returns to starting point Regardless of needle position AT C pulse motor return to starting position Replace pulse motor Replace NP F2 PCB assy Replace main F3D PCB assy Is the resistance between the 1 2 pins and 3 4 pins on the pulse motor connectors 4 6 Ω Regardless of needle position this pulse motor returns to the starting point Is the voltage between pins 5 4 of CN14 on t...

Страница 188: ...in the depressed position Is the foot controller connector correctly connected to CN15 on the main F3D PCB assy Pattern cannot be selected Reconnect it correctly Set the foot controller so it is not pressed down Adjust the assembly of SS VR F2 PCB assy and the operation F3 PCB assy or Replace operation F3 PCB assy or Replace SS VR F2 PCB assy Replace operation F3 PCB assy or Replace main F3D PCB a...

Страница 189: ...tance values for the Stop Start switch reverse switch raise needle switch and the thread cut switch normal Switch resistance values Switch depressed 1 Ω or less Switch out N N N N Y Is the main motor connector correctly connected to CN301 of power supply unit F Y Replace main motor Replace SS VR F2 PCB assy Is the main motor resistance 1 5 3 5 Ω Y Y To next page Main motor does not turn ...

Страница 190: ...he presser switch resistance normal Presser switch resistance Switch depressed 1 Ω or less Switch out N Reconnect it correctly Is the NP F2 or F1 PCB assy connector correctly connected to CN2 on the main F3D PCB assy N N Y Y Replace switch assy From previous page Replace operation F3 PCB assy or Replace main F3D PCB assy or Replace power supply F ...

Страница 191: ...justed Replace SS VR F2 PCB assy When the speed control lever is moved with the power ON does the voltage between pins 2 1 of CN2 on the SS VR F3 PCB assy vary 0 7 4 3 V DC N Y Replace NP F2 PCB assy Replace main F3D PCB assy When the upper shaft pulley is slowly turned by hand does the voltage between pins 2 1 pins 4 1 and pins 5 1 on the main F3D PCB assy vary 0 5 V DC N Y Y ...

Страница 192: ...d does the voltage between pins 4 1 and pins 5 1 on the main F3D PCB assy vary 0 5 V DC N Adjust the attachment of the needle presser module N Y Replace main F3D PCB assy Y Y With the power OFF can you lightly move the needle bar left and right by hand Replace pulse motor N Y Is the resistance between pins 1 2 and pins 3 4 on the Z pulse motor and F pulse motor connectors 4 6 ...

Страница 193: ...nd pins 2 3 normal BH lever pulled forward Pins 1 2 1 Ω or less pins 2 3 BH lever pushed back Pins 1 2 pins 2 3 1 Ω or less Is the resistance between BH lever switch connector pins 4 5 normal BH lever down 1Ω or less BH lever up Change to correct presser N Replace main F3D PCB assy Y Y Is the correct presser being used N N Y Adjust BH lever or Replace BH switch assy Adjust BH lever or Replace BH s...

Страница 194: ...nual adjustment N Y Y Replace main F3D PCB assy Y Does the LCD panel display change when the manual key for stitch length and the manual key for zigzag width are turned ON and OFF normally Is the resistance between pins 1 2 and pins 3 4 on the Z pulse motor and F pulse motor connectors 4 6 Ω Replace pulse motor N Replace rubber keys or Replace operation F3 PCB assy ...

Страница 195: ...Is the BW switch assy OFF When the upper shaft pulley is slowly turned by hand does the voltage between pins 2 1 pins 4 1 and pins 5 1 on the main F3D PCB assy vary 0 5 V DC Are the resistance values for the Stop start switch reverse switch raise needle switch and the thread cut switch normal Switch resistance values Switch depressed 1 Ω or less Switch out N N N Adjust the assembly of the BW switc...

Страница 196: ...ood controller or Replace assy pin jack F With the foot controller connected does the resistance between pins 1 3 on the assy pin jack F connector vary from several Ω 10 kΩ when the foot controller is pressed down Is the resistance between the assy pin jack F connector pins 2 3 normal Foot controller disconnected 1 Ω or less Foot controller connected N N Y Y Replace main F3D PCB assy ...

Страница 197: ... the lower thread correctly Is the lower thread placement correct N Y Use the correct combination Is the material thread and needle combination correct N Y Adjust upper thread tension N Y Adjust inner rotary hook tension Is the inner rotary hook tension right Is the tension right N Y Adjust upper thread tension disk Is the thread tension adjuster gap correct N Y Replace main F3D PCB assy Y ...

Страница 198: ...hread cutter does not operate normally Adjust the assembly of the thread cutter module Do the thread hook assy and lever gear move easily Is the resistance between the 1 2 pins and 3 4 pins on the C pulse motor connectors CN11 4 6 Ω N N Replace C pulse motor Y Y Replace main F3D PCB assy ...

Страница 199: ...le and the operation F3 PCB assy properly connected N Y Connect the operation F3 PCB assy and main F3D PCB assy properly Are the operation F3 PCB assy and main F3D PCB assy properly connected N Y Replace the single light guide assy or the operation F3 PCB assy Is the voltage between pins 15 14 on the operation F3 PCB assy connector CN1 approximately 5 V N Y Replace main F3D PCB assy ...

Страница 200: ...ht guide assy backlight leads and operation F3 PCB assy properly connected N Replace the single light guide assy Is the voltage between pins 2 1 on the operation F3 PCB assy connector CN3 approximately 3 4 V N Y Connect the operation F3 PCB assy and main F3D PCB assy properly Are the operation F3 PCB assy and main F3D PCB assy properly connected N Y Y Replace operation F3 PCB assy or Replace main ...

Страница 201: ...er mechanism for correct assembly and attachment Is the bobbin winder mechanism assembled and attached correctly Is the resistance between the bobbin winder assy connector pins 1 2 normal Bobbin winder shaft in bobbin wind position 1 Ω or less Bobbin winder shaft not in bobbin wind position N N Replace BW switch assy Y Y Replace main F3D PCB assy ...

Страница 202: ...and PCB Unit LED lamp FL correctly Are the main F3D PCB assy and PCB Unit LED lamp FL correctly connected N Y Reconnect the SS VR F2 PCB assy and PCB Unit LED lamp FR correctly Are the SS VR F2 PCB assy and PCB Unit LED lamp FR correctly connected N Y Reconnect the main F3D PCB assy and operation F3 PCB assy correctly Are the main F3D PCB assy and operation F3 PCB assy properly connected N Y Repla...

Страница 203: ...6 1 6 Repair Manual ...

Страница 204: ... machine will not turn LED red BH lever up Bad presser switch adjustment Adjust presser switch position 3 21 Presser switch function Raise the presser foot lifter and check that the S S button shines red and that it shines green when you lower the presser foot lifter Bad presser switch Replace presser switch 3 21 Thread take up shutter malfunction thread take up cover in place Correct thread guide...

Страница 205: ...bottom of the rotary hook tip is 1 0 1 4 mm 4 9 Loose timing adjustment screws Adjust needle bar height 4 9 9 Does not turn Electronic sounds and operating display lamps normal at startup Bad main motor Replace main motor 3 27 Sewing machine runs when S S button is pushed Check that the sewing machine starts and stops when the S S button is pushed when green Main motor connector disconnection Plug...

Страница 206: ...chment screw Readjust feed dog attachment screw 4 26 Left right rattle in feed dog With the feed dog up check that there is no rattle when the feed dog is lightly moved left and right 4 27 Horizontal rattle in feed bar Reattach the feed bar 3 73 Bad feed dog height adjustment Adjust feed dog height 4 27 Feed dog height With the feed dog in the highest position check that the feed dog comes out 0 9...

Страница 207: ...ertical rattle noise Outer rotary hook noise Outer rotary hook vertical rattle Reattach outer rotary hook 3 70 Upper shaft noise Upper shaft bushing out of oil Lubricate the sliding surfaces of the bushing and thread take up counter weight Rattle along the thread take up counter weight shaft Reattach the thread take up counter weight 3 46 Motor noise Belt too tight Readjust the motor belt 4 7 Moto...

Страница 208: ... attachment of needle block Replace needle bar 3 54 Threader hook assy slippage Replace hook assy 3 49 Vertical slippage in needle thread block Readjust the needle thread block 4 29 Does not go into needle hole because of hook tip curvature Replace hook assy 3 49 Threading impossible even though hook goes into needle hole Thread lost from hook guard B Replace hook assy 3 49 Because of bad hook spr...

Страница 209: ...ower thread unsuitable Replace upper thread or lower thread 16 Actual sewing Needle breakage Needle breaks Actual sewing straight line zigzag Check that the needle does not break during actual sewing Check that there are no abnormal sounds during actual sewing Inner rotary hook slips because the inner rotary hook and inner rotary hook bracket back front overlap is too small Adjust inner rotary hoo...

Страница 210: ...d lower presser foot lifter slowly Check that there s some resistance when lower feed dog and insert a paper between needle plate and presser foot and then pull the paper out of them 4 13 Stops during sewing Stops during sewing Check that it does not stop during actual sewing No gap for bobbin winder switch Readjust BW switch assy position 3 14 No gap for BH lever switch Adjust BH lever switch pos...

Страница 211: ...ase line and confirm that the Schappe Spun Sewing Thread 60 is actually cut 3 77 Bad SS VR F PCB assy Replace SS VR F PCB assy 3 35 Bad main PCB assy Replace main PCB assy 3 25 Bad thread cutter pulse motor Replace C pulse motor 3 75 Thread cutter pulse motor connector disconnected Plug connector in Parts related to the thread cutter lever gear drag Reassemble the parts for which operations drag T...

Страница 212: ...t the bobbin winder guide assembly height 4 18 Abnormal sound when the bobbin winder rotates The bobbin is coming into contact with the bobbin presser Remove the front cover and adjust the position using the bobbin winder holder attachment screw 3 14 Timing pulley scratches Repair scratches or replace timing pulley 3 5 21 Foot controller not effective Bad foot controller Replace foot controller Fo...

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