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6 - 1

Motor 3P supply assy

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LED lead wire

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Special Instructions
of Wiring

Содержание ArtCity140

Страница 1: ...k19 artwork22 SL10 HQ18 X7 JX1410 JX1710 JX2517 AS1450 RS100 RS200 JX1400 JS1420 LS2225 LS2325 SL100 VitrageM71 VitrageM73 ArtCity140 JS1750 NB1400 NB1700 KD144 K14 F14 K17 F17 KE14 ArtCity170 Home Sewing Machine SERVICE MANUAL Aug 2012 May 2015 Published Revised c 2012 Brother Industries Ltd All rights reserved CONFIDENTIAL ...

Страница 2: ......

Страница 3: ... 2013 JX1710 JX2517 Sep 2013 RS100 RS200 Mar 2014 JX1400 Apr 2014 JS1420 Jun 2014 Aug 2014 LS2225 LS2325 SL100 Feb 2015 VitrageM71 VitrageM73 Mar 2015 ArtCity140 Apr 2015 JS1750 NB1400 NB1700 Apr 2015 KD144 K14 F14 K17 F17 KE14 May 2015 ArtCity170 May 2013 JX1410 Jul 2013 AS1450 Mar 2013 SL10 HQ18 artwork22 JSL18 LS300 ...

Страница 4: ... Thread tension dial assembly 2 15 Pattern selecting mechanism 2 16 Removal of Pattern selecting unit assy 2 17 Bobbin winder Upper shaft Needle presser module 2 18 Removal of Bobbin winder assy 2 19 Removal of Upper shaft assy 2 20 Removal of Needle presser module 2 21 Assembly Bobbin winder Upper shaft Needle presser module 2 23 Attachment of Needle presser module 2 24 Attachment of Upper shaft ...

Страница 5: ...ly of Thread tension dial assembly 3 20 Pattern selecting mechanism 3 21 Disassembly of Pattern selecting unit assy 3 22 Bobbin winder Upper shaft Needle Presser module 3 23 Disassembly of Bobbin winder assy 3 24 Disassembly of Upper shaft assy 3 25 Disassembly of Needle presser module 3 26 Assembly Bobbin winder Upper shaft Needle Presser module 3 30 Lubrication 3 31 Assembly of Needle presser mo...

Страница 6: ... interference left right 4 11 Needle bar rising 4 12 Needle bar height 4 14 Needle clearance 4 15 Left straight stitch needle drop and zigzag stitch maximum left needle drop position 4 16 Feed dog position front back and left right 4 18 Feed dog height 4 19 Upper thread tension 4 20 Left and right stitch of buttonhole stitch length 4 22 Bobbin winder 4 25 Lower thread tension 4 26 5 Failure Invest...

Страница 7: ...1 1 1 Main mechanisms 1 2 Driveline 1 3 Positions of electronic components 1 5 Control system block diagram 1 6 Outline of Mechanism ...

Страница 8: ...Main mechanisms Bobbin winder Mechanism Front Side View Back Side View Horizontal feed Mechanism Pattern selecting Mechanism Lower shaft Mechanism Upper shaft Mechanism Feed Rotary hook Mechanism Zigzag Mechanism Thread guide Mechanism Needle bar Presser foot Mechanism ...

Страница 9: ...rter Needle bar crank Z finger frame Needle bar Thread take up counter weight Zigzag connecting rod Needle bar block Needle bar block shaft Needle bar crank rod Needle bar crank rod Needle bar block shaft Needle bar supporter Needle bar crank Z finger frame Thread take up counter weight Upper shaft Pulley Needle bar block Needle bar Needle Timing pulley Pattern cam Motor belt Main motor Selecting ...

Страница 10: ...D Lower shaft Pattern selecting dial Selecting cam Lower shaft gear Feed cam Feed arm B Timing pulley Upper shaft pulley Pulley Timing pulley D V feed attachment Lower shaft Lower shaft gear Main motor Timing belt Motor belt Feed cam Feed connecting lever Pattern selecting dial Selecting cam Feed regulator plate A B Upper shaft Feed arm B Feed arm A Outer rotary hook assy Feed stand Feed adjuster ...

Страница 11: ...1 5 Outline of Mechanism Outline of Mechanism Outline of Mechanism Positions of electronic components Main motor 3pin socket Power supply PCB Sewing lamp LED Power SW ...

Страница 12: ...anism Outline of Mechanism Outline of Mechanism Control system block diagram SEWING MACHINE In the 3pin socket Main motor Foot controller plug 3pin AC Foot controller 3pin socket Power SW Power supply PCB Sewing lamp LED ...

Страница 13: ... Covers 2 3 Main motor unit 2 7 Feed unit Feed control 2 10 Needle threading mechanism 2 14 Pattern selecting mechanism 2 16 Bobbin winder Upper shaft Needle presser module 2 18 Assembly Bobbin winder Upper shaft Needle presser module 2 23 Pattern selecting mechanism 2 28 Needle threading mechanism 2 32 Feed unit Feed control 2 34 Main motor unit 2 40 Main frame and Covers 2 43 ...

Страница 14: ...asic of Disassembly Basic of Disassembly 1 Disconnecting cables Removing accessories Foot controller socket Needle Presser foot Accessory table Slide plate Bobbin Foot controller socket Accessory table Bobbin Slide plate Presser foot Needle ...

Страница 15: ...Basic of Disassembly Basic of Disassembly 2 3 Main frame and Covers Basic of Disassembly Main frame and Covers location diagram ...

Страница 16: ...ee screws taptite cup P M4X20 and screw taptite bind P M3X16 from the rear cover side 4 Release the five hooks of front cover assy from the five hook trays of rear cover assy and then open the bottom side of front cover assy to remove the front cover assy from the rear cover assy Refer to 3 4 Disassembly of Rear cover assy Taptite Cup P M4X20 Screw Pan S P washer M3X6 Taptite Bind P M3X16 Taptite ...

Страница 17: ...sy and Base plate L R 1 Pull down the presser foot lifter 2 Remove the three screws taptite cup P M4X20 and then remove the rear cover assy from the arm bed while the A of rear cover assy is bending Taptite Cup P M4X20 Rear cover assy Taptite cup P M4X20 Taptite cup P M4X20 Taptite cup P M4X20 Presser foot lifter A ...

Страница 18: ...e the base plate L from the bottom side of arm bed 4 Remove the two screws taptite bind S M4X10 to remove the base plate R from the bottom side of arm bed Refer to 3 5 Disassembly of Base plate L R Taptite Bind S M4X10 Taptite bind S M4X10 Base plate R Base plate L bottom side bottom side Taptite bind S M4X10 Taptite bind S M4X10 Base plate L ...

Страница 19: ...Basic of Disassembly 2 7 Main motor unit Basic of Disassembly Basic of Disassembly Main motor unit location diagram ...

Страница 20: ...mps from the lead wire of LED lamp assy 2 Disconnect the connector of LED lamp assy from the PCB of motor 3P supply assy 3 Remove the screw screw pan S P washer M4X8 to remove the LED lamp assy from the base holder assy Taptite Bind S M4X10 Taptite bind S M4X10 Lead wire of LED lamp assy PCB Connector of LED lamp assy Cord clamps Motor 3P supply assy Screw Pan S P washer M4X8 Base holder assy Scre...

Страница 21: ...M4X10 to remove the motor assy of motor 3P supply assy from the arm bed 3 Remove the two screws taptite cup P M4X20 to remove the 3P socket unit of motor 3P supply assy from the arm bed Refer to 3 7 Disassembly of Motor 3P supply assy Taptite Cup P M4X20 Taptite Bind S M4X10 Motor T pulley Taptite cup P M4X20 Taptite bind S M4X10 Motor assy Timing belt 3P socket unit Taptite bind S M4X10 Taptite c...

Страница 22: ...Basic of Disassembly 2 10 Feed unit Feed control Basic of Disassembly Basic of Disassembly Feed unit Feed control location diagram ...

Страница 23: ...bind S M4X10 to remove the bushing presser from the arm bed 4 Remove the two screws set screw socket CP M5X5 from the fixed joint And pull out the lower shaft B assy from the fixed joint of feed module while lifting up the lower shaft bushing of lower shaft B assy Refer to 3 10 Disassembly of Lower shaft B assy Taptite Bind S M4X10 Taptite bind S M4X10 Tension pulley assy Taptite Bind S M4X10 Set ...

Страница 24: ...screws screw pan S P washer M4X10 from the feed module And lift up the feed module to remove it from the two bosses on arm bed and slide it in the direction of the arrow to remove the feed adjuster of feed module from the feed adjusting shaft of feed connecting lever assy Refer to 3 11 Disassembly of Feed module Screw Pan S P washer M4X10 Spring XF5134 Feed adjusting shaft Screw pan S P washer M4X...

Страница 25: ... taptite bind S M4X10 to remove the feed adjusting shaft holder of feed connecting lever assy from the arm bed And turn the feed connecting lever of feed connecting lever assy 90 degrees to remove it from the feed regulator plate B of pattern selecting unit assy Taptite Bind S M4X10 Spring extension C XE9262 Taptite bind S M4X10 Feed connecting lever Feed regulator plate B Boss 90 Feed adjusting s...

Страница 26: ...Basic of Disassembly 2 14 Needle threading mechanism Basic of Disassembly Basic of Disassembly Needle threading mechanism location diagram ...

Страница 27: ...ol holder assy of thread tension dial assembly and the zigzag connecting rod 2 Remove the two screws taptite bind S M4X10 to remove the thread tension dial assembly from the arm bed Refer to 3 20 Disassembly of Thread tension dial assembly Taptite Bind S M4X10 Spring XF3522 Spring XF3522 Taptite bind S M4X10 Thread tension dial assembly Tension control holder assy Zigzag connecting rod ...

Страница 28: ...Basic of Disassembly 2 16 Pattern selecting mechanism Basic of Disassembly Basic of Disassembly Pattern selecting mechanism location diagram ...

Страница 29: ...aining ring E4 to remove the zigzag connecting rod from the shaft of pattern selecting unit assy 2 Remove the four screws taptite bind S M4X10 to remove the pattern selecting unit assy from the arm bed Refer to 3 22 Disassembly of Pattern selecting unit assy Screw Pan M3X10 Retaining ring E4 Zigzag connecting rod Screw pan M3X10 Zigzag adjusting nut Shaft Pattern selecting unit assy Needle unit su...

Страница 30: ...Basic of Disassembly 2 18 Bobbin winder Upper shaft Needle presser module Basic of Disassembly Basic of Disassembly Bobbin winder Upper shaft Needle presser module location diagram ...

Страница 31: ...asic of Disassembly Basic of Disassembly 1 Removal of Bobbin winder assy 1 Remove the two screws taptite bind S M4X10 to remove the bobbin winder assy from the arm bed Refer to 3 24 Disassembly of Bobbin winder assy Taptite Bind S M4X10 Taptite bind S M4X10 Bobbin winder assy ...

Страница 32: ...rom the arm bed And remove the two lower shaft bushings of upper shaft assy from the arm bed and then slide the upper shaft assy in the direction of the arrow to remove the thread take up counter weight of upper shaft assy from the shaft of thread take up lever Refer to 3 25 Disassembly of Upper shaft assy Taptite Bind S M4X10 Set Screw Socket FT M5X5 Hex wrench 2 5 mm Mounting positions Taptite b...

Страница 33: ...ly Basic of Disassembly 3 Removal of Needle presser module 1 Remove the screw screw bind M4X8 to remove the stopper plate from the back side of arm bed 2 Remove the screw cup screw M3X20 from the back side of arm bed Cup screw M3X20 Screw Bind M4X8 Cup screw M3X20 Stopper plate Screw bind M4X8 ...

Страница 34: ...mbly Basic of Disassembly 3 Remove the two screws screw bind M4X10 to remove the two presser plates from the arm bed And remove the needle presser module from the arm bed Refer to 3 26 Disassembly of Needle presser module Screw Bind M4X10 Needle presser module Presser plates Screw bind M4X10 ...

Страница 35: ...Basic of Assembly 2 23 Bobbin winder Upper shaft Needle presser module Basic of Assembly Basic of Assembly Bobbin winder Upper shaft Needle presser module location diagram ...

Страница 36: ... shaft of needle presser module to the two mounting positions on arm bed and insert the tab of arm bed into the positioning hole of needle presser module 2 Attach the presser plate to the arm bed with the screw screw bind M4X10 2 locations Screw Bind M4X10 Mounting positions Shaft Presser plates Screw bind M4X10 Positioning hole Needle presser module Tab ...

Страница 37: ...f Assembly 3 Tighten the screw cup screw M3X20 temporarily to the back side of arm bed 4 Attach the stopper plate to the back side of arm bed with the screw screw bind M4X8 Refer to 3 32 Assembly of Needle presser module Cup screw M3X20 Screw Bind M4X8 Cup screw M3X20 Stopper plate Screw bind M4X8 ...

Страница 38: ... S M4X10 2 Align the D cut surface of needle bar crank rod assy with the screw hole on thread take up counter weight and secure it with the screw set screw socket FT M5X5 3 Pass the timing belt to the upper shaft assy Refer to 3 36 Assembly of Upper shaft assy Taptite Bind S M4X10 Set Screw Socket FT M5X5 Hex wrench 2 5 mm Mounting positions Taptite bind S M4X10 Shaft of thread take up lever Lower...

Страница 39: ...ule Basic of Assembly Basic of Assembly 3 Attachment of Bobbin winder assy 1 Attach the bobbin winder assy to the arm bed with the two screws taptite bind S M4X10 Refer to 3 37 Assembly of Bobbin winder assy Taptite Bind S M4X10 Taptite bind S M4X10 Bobbin winder assy ...

Страница 40: ...Basic of Assembly 2 28 Pattern selecting mechanism Basic of Assembly Basic of Assembly Pattern selecting mechanism location diagram ...

Страница 41: ...embly Basic of Assembly 1 Lubrication Lubrication point Lubricating oil type Quantity of lubrication 1 Z finger frame assy 1 place EPNOC AP N 0 Rice grain size 2 Zigzag adjusting nut 1 place EPNOC AP N 0 Rice grain size Z finger frame assy Zigzag adjusting nut 2 1 ...

Страница 42: ... unit assy 1 Match the mark on worm gear of upper shaft assy with the mark on gear of pattern selecting unit assy and attach the pattern selecting unit assy to the arm bed with the four screws taptite bind S M4X10 Taptite Bind S M4X10 Pattern selecting unit assy Taptite bind S M4X10 Gear Marks Worm gear Upper shaft assy ...

Страница 43: ...sy of needle unit supply assy and tighten the screw screw pan M3X10 temporarily Key point Confirm that place the zigzag adjusting nut with the larger end facing the top side Fully tighten the screw after performing 4 10 Three point needle drop Refer to 3 40 Assembly of Pattern selecting unit assy Screw Pan M3X10 Screw pan M3X10 Retaining ring E4 Zigzag connecting rod Screw pan M3X10 Zigzag adjusti...

Страница 44: ...Basic of Assembly 2 32 Needle threading mechanism Basic of Assembly Basic of Assembly Needle threading mechanism location diagram ...

Страница 45: ...s A of upper tension control releaser on the upper side of presser foot lifter as shown in the illustration below 2 Hang the spring XF3522 to the tension control holder assy and the zigzag connecting rod Refer to 3 42 Assembly of Thread tension dial assembly Taptite Bind S M4X10 Spring XF3522 Spring XF3522 Taptite bind S M4X10 Tension control holder assy A Presser foot lifter Upper tension control...

Страница 46: ...Basic of Assembly 2 34 Feed unit Feed control Basic of Assembly Basic of Assembly Feed unit Feed control location diagram ...

Страница 47: ... of Assembly 1 Lubrication Lubrication point Lubricating oil type Quantity of lubrication 1 Feed adjusting shaft holder 1 place EPNOC AP N 0 Rice grain size 2 Feed connecting lever 1 place EPNOC AP N 0 Rice grain size Feed adjusting shaft holder Feed connecting lever 1 2 ...

Страница 48: ...eed adjusting shaft holder of feed connecting lever assy to the arm bed with the two screws taptite bind S M4X10 2 Attach the spring extension C XE9262 to the feed connecting lever and the pattern selecting unit assy Taptite Bind S M4X10 Spring extension C XE9262 Taptite bind S M4X10 Feed connecting lever Feed regulator plate B Boss Spring extension C XE9262 Feed adjusting shaft holder Pattern sel...

Страница 49: ...ng holes of back side of feed module into the two tabs of arm bed and set the feed module to the arm bed and secure it with the three screws screw pan S P washer M4X10 2 Attach the spring XF5134 to the feed adjusting shaft of feed connecting lever assy and the arm bed as shown in the illustration below Refer to 3 45 Assembly of Feed module Screw Pan S P washer M4X10 Spring XF5134 Pin Screw pan S P...

Страница 50: ...the fixed joint Key point Fully tighten the two screws after performing 4 12 Needle bar rising 2 Hang the timing belt to the timing pulley D of lower shaft B assy Refer to 3 53 Assembly of Lower shaft B assy 3 Attach the tension pulley assy to the arm bed with the two screws taptite bind S M4X10 Refer to 3 54 Assembly of Tension pulley assy Taptite Bind S M4X10 Set Screw Socket CP M5X5 Hex wrench ...

Страница 51: ... the pulley of upper shaft and set the mark of outer rotary hook assy frontward by rotating the lower shaft A assy and set the feed cam with larger end facing backward and tighten the two screws set screw socket CP M5X5 of fixed joint Set Screw Socket CP M5X5 Hex wrench 2 5 mm Outer rotary hook assy Groove Upper shaft pulley Set screw socket CP M5X5 Fixed joint Mark Feed cam Lower shaft A assy ...

Страница 52: ...Basic of Assembly 2 40 Main motor unit Basic of Assembly Basic of Assembly Main motor unit location diagram ...

Страница 53: ...or assy of motor 3P supply assy to the arm bed with the two screws taptite bind S M4X10 3 Hang the timing belt on the T pulley and the motor T pulley And set the motor tension pulley on the timing belt so that pushing it Refer to 3 56 Assembly of Motor 3P supply assy Taptite Cup P M4X20 Taptite Bind S M4X10 Positioning holes Pin Pin Taptite cup P M4X20 Taptite bind S M4X10 Motor assy Timing belt M...

Страница 54: ...Connect the connector of LED lamp assy to the PCB of motor 3P supply assy 3 Set the cord clamp to the lead wire of LED lamp assy and attach it to the arm bed with the screw taptite bind S M4X10 2 locations Screw Pan S P washer M4X8 Positioning hole Boss Screw pan S P washer M4X8 LED lamp assy Base holder assy Taptite Bind S M4X10 Taptite bind S M4X10 Lead wire of LED lamp assy PCB Connector of LED...

Страница 55: ...Basic of Assembly 2 43 Main frame and Covers Basic of Assembly Basic of Assembly Main frame and Covers location diagram ...

Страница 56: ...R to the bottom side of arm bed with the two screws taptite bind S M4X10 2 Attach the base plate L to the bottom side of arm bed with the two screws taptite bind S M4X10 Refer to 3 58 Assembly of Base plate L R Taptite Bind S M4X10 Taptite bind S M4X10 Base plate R Base plate L bottom side bottom side Taptite bind S M4X10 Taptite bind S M4X10 Base plate L ...

Страница 57: ...ll down the presser foot lifter 4 Set the rear cover assy to the arm bed and secure it with the three screws taptite cup P M4X20 Refer to 3 59 Assembly of Rear cover assy Taptite Cup P M4X20 Rear cover assy Taptite cup P M4X20 Taptite cup P M4X20 Taptite cup P M4X20 Presser foot lifter ...

Страница 58: ...selecting dial to the shaft of pattern selecting unit assy 4 Insert the pin of face plate assy into the positioning hole of front cover assy and set the face plate assy to the rear cover assy and secure it with the screw taptite cup P M4X20 from the rear cover side Refer to 3 60 Assembly of Face plate assy Taptite Cup P M4X20 Screw Pan S P washer M3X6 Taptite Bind P M3X16 Taptite cup P M4X20 Tapti...

Страница 59: ...ssembly Main frame and Covers 3 2 Main motor unit 3 6 Feed unit 3 8 Needle threading mechanism 3 19 Pattern selecting mechanism 3 21 Bobbin winder Upper shaft Needle Presser module 3 23 Assembly Bobbin winder Upper shaft Needle Presser module 3 30 Pattern selecting mechanism 3 38 Needle threading mechanism 3 41 Feed unit 3 43 Main motor unit 3 55 Main frame and Covers 3 57 ...

Страница 60: ...Application of Disassembly 3 2 Main frame and Covers Application of Disassembly Application of Disassembly Main frame and Covers location diagram ...

Страница 61: ...on of Disassembly 1 Disassembly of Face plate assy 1 Remove the screw taptite bind B M3X10 to remove the face plate cutter holder and the NT lower thread cutter from the face plate assy Taptite Bind B M3X10 NT lower thread cutter Face plate assy Face plate cutter holder Taptite bind B M3X10 ...

Страница 62: ... rear cover 3 Remove the spool pin stand from the rear cover 4 Remove the screw taptite pan P S P W 3X12 to remove the bobbin presser from the rear cover 5 Remove the screw taptite cup P M4X20 to remove the thread guide assy from the rear cover Taptite Cup P M4X20 Taptite Pan P S P W 3X12 Taptite pan P S P W 3X12 Thread guide assy Taptite cup P M4X20 Bobbin presser Spool pin spring Spool pin stand...

Страница 63: ...ation of Disassembly 3 Disassembly of Base plate L R 1 Remove the base rubber A from the base plate L 2 Remove the adjusting screw assy from the base plate L 3 Remove the two base rubbers A from the base plate R Base rubber A Base plate R Base rubbers A Base plate L Adjusting screw assy ...

Страница 64: ...Application of Disassembly 3 6 Main motor unit Application of Disassembly Application of Disassembly Main motor unit location diagram ...

Страница 65: ...n of Disassembly Application of Disassembly 1 Disassembly of Motor 3P supply assy 1 Remove the retaining ring E3 to remove the frange and motor T pulley from the shaft of motor 3P supply assy Motor 3P supply assy Retaining ring E3 Frange Shaft Motor T pulley ...

Страница 66: ...Application of Disassembly 3 8 Feed unit Application of Disassembly Application of Disassembly Feed unit location diagram ...

Страница 67: ...r B assy 2 Remove the screw screw pan S P washer M4X8 to remove the M tension pulley stopper from the tension pulley holder B assy 3 Remove the screw screw pan S P washer M4X8 to remove the tension pulley sub assy from the tension pulley holder B assy Screw Pan S P washer M4X8 Spring XF3404 Tension pulley sub assy Tension pulley holder B assy M tension pulley stopper Screw pan S P washer M4X8 Moto...

Страница 68: ...f Disassembly 2 Disassembly of Lower shaft B assy 1 Remove the lower shaft bushing from the lower shaft B sub assy 2 Remove the retaining ring E6 to remove the timing pulley D from the lower shaft B sub assy Retaining ring E6 Timing pulley D Lower shaft B sub assy Lower shaft bushing ...

Страница 69: ...older assy from the feed holder 4 Remove the screw screw bind M3X3 and remove the spring plate and the spring assist plate from the needle plate holder 5 Remove the inner rotary hook assy from the outer rotary hook assy 6 Remove the sheet from the feed adjuster holder Screw Pan P washer M2 6X6 Screw Bind M3X3 Taptite Pan P S P W 3X12 Screw needle plate Taptite pan P S P W 3X12 Needle plate A Screw...

Страница 70: ...olt socket M3X5 to remove the feed dog from the feed stand 8 Release the four hooks to remove the two feed arm A pins And remove the feed stand from the feed arm A sub assy Bolt Socket M3X5 Hex wrench 2 5 mm Hooks Bolt socket M3X5 Feed dog Feed stand Feed arm A pin Feed arm A pin Hooks Feed arm A sub assy Feed arm B assy ...

Страница 71: ... of the arrow to align the tab B of feed stand spring cap with the notch part of feed stand and remove it from the feed stand 11 Remove the feed stand spring XF3457 from the vertical adjuster screw And remove the vertical adjuster screw from the feed stand Screw Bind M3X3 Feed stand spring XF3457 Feed stand Feed stand spring cap Feed stand spring XF3457 Vertical feed spring plate Screw bind M3X3 V...

Страница 72: ...er holder from the feed holder 13 Pull out the feed adjuster and the feed adjuster spring XF5127 from the feed adjuster holder as shown illustration below Taptite Pan P S P W 3X12 Feed adjuster spring XF5127 Feed holder Feed adjuster Groove Feed arm B assy Shaft Feed adjuster spring XF5127 Taptite pan P S P W 3X12 Feed adjuster holder Tab Tab Feed adjuster Groove Groove ...

Страница 73: ...pan P S P W 3X12 to remove the two horizontal feed shaft pressers from the feed holder And remove the horizontal feed shaft of feed arm A sub assy from the feed holder Taptite Pan P S P W 3X12 Horizontal feed shaft presser Horizontal feed shaft presser Taptite pan P S P W 3X12 Horizontal feed shaft Feed holder Feed arm A sub assy ...

Страница 74: ...haft and pull out the horizontal feed shaft to remove the horizontal feed shaft washer the horizontal feed shaft spring XF3451 the two polyester sliders from the feed arm A sub assy And remove the retaining ring E3 from the horizontal feed shaft Taptite Cup B M4X10 Horizontal feed shaft spring XF3451 Groove A Retaining ring E3 Groove B Horizontal feed shaft Polyester sliders Horizontal feed shaft ...

Страница 75: ...er the magnet the washer the outer rotary hook assy and the washer thrust from the shaft supporter 18 Remove the two screws taptite pan P S P W 3X12 to remove the shaft supporter from the feed holder Set Screw Socket CP M4X6 Hex wrench 2 0 mm Taptite Pan P S P W 3X12 Outer rotary hook shaft Washer Magnet Washer Outer rotary hook assy Taptite pan P S P W 3X12 Wahser thrust Shaft supporter Feed hold...

Страница 76: ...r shaft A sub assy And remove the two screws set screw socket FT M5X5 to remove the fixed joint from the lower shaft A sub assy 21 Release the two hooks to remove the vertical feed shaft from the feed holder And pull out the vertical lever from the vertical feed shaft Set Screw Socket FT M5X5 Hex wrench 2 5 mm Taptite Pan P S P W 3X12 Lower shaft spring XF3479 Retaining ring E6 Washer thrust Lower...

Страница 77: ...Application of Disassembly 3 19 Needle threading mechanism Application of Disassembly Application of Disassembly Needle threading mechanism location diagram ...

Страница 78: ...ud to remove the tension control nut and the tension spring X55630 from the thread tension stand And pull out the tension disc plate the two tension discs the thread tension disc presser and the spring X55821 from the thread tension stand 3 Remove the retaining ring E4 to remove the upper tension control releaser from the shaft on tension control holder assy Taptite Bind B M3X10 Spring X55821 Tens...

Страница 79: ...Application of Disassembly 3 21 Pattern selecting mechanism Application of Disassembly Application of Disassembly Pattern selecting mechanism location diagram ...

Страница 80: ...cting unit assy And remove the retaining ring E5 from the shaft B of pattern selecting unit assy to remove the feed regulator plate B and the feed regulator plate A assy from the pattern selecting unit assy And remove the nut 4 from the feed adjusting screw to remove the feed adjusting screw from the feed regulator plate B Retaining ring E5 Pattern selecting unit assy Feed regulator plate A assy F...

Страница 81: ...Application of Disassembly 3 23 Bobbin winder Upper shaft Needle Presser module Application of Disassembly Application of Disassembly Bobbin winder Upper shaft Needle Presser module location diagram ...

Страница 82: ...tion of Disassembly Application of Disassembly 1 Disassembly of Bobbin winder assy 1 Remove the bobbin winder assy from the bobbin winder spring plate 2 Remove the bobbin winder rubber band from the bobbin winder assy Bobbin winder assy Bobbin winder rubber band Bobbin winder spring plate ...

Страница 83: ...y 3 25 Bobbin winder Upper shaft Needle Presser module Application of Disassembly Application of Disassembly 2 Disassembly of Upper shaft assy 1 Remove the pulley from the upper shaft supply assy Upper shaft supply assy Pulley ...

Страница 84: ...move the retaining ring E4 to remove the washer the spring XF3413 and the thread take up lever link from the shaft 3 Remove the thread take up lever and the needle bar crank rod assy from the needle bar block shaft of needle bar crank rod assy Tightening screw 3 57 Spring XF3413 Tightening screw 3 57 Presser foot holder Retaining ring E4 Needle bar block shaft Thread take up lever Needle bar crank...

Страница 85: ...e threaded 5 Remove the screw set screw socket FT M4X4 and then pull out the needle bar assy N from the base holder assy to remove the needle bar block of needle bar crank rod assy 6 Remove the needle clamp screw from the needle block of needle bar assy N Thread take up lever Screw flat SM3 57 40X7 L Needle bar crank rod assy Set Screw Socket FT M4X4 Hex wrench 2 0 mm Base holder assy Needle bar b...

Страница 86: ...sy 9 Remove the needle bar supporter spring XF3423 from the base holder assy 10 Remove the screw screw 3X10 to remove the needle bar supporter guide from the base holder assy 11 Remove the screw screw 3X10 to remove the shaft from the base holder assy Screw Pan S P washer M3X6 Screw 3X10 Hex wrench 2 5 mm Needle bar supporter spring XF3423 Screw 3X10 Shaft Screw 3X10 Needle bar supporter guide Nee...

Страница 87: ...the presser bar sub assy until the presser bar clamp pin align with the notch part and turn it to the direction of the arrow 90 degrees And pull out the presser bar sub assy from the base holder assy 14 Release the two hooks to pull out the presser foot lifter from the base holder assy Screw Pan S P washer M3X6 Spring XC4900 Spring XC4900 Presser bar sub assy Base holder assy Shaft Hooks Screw pan...

Страница 88: ...Application of Assembly 3 30 Bobbin winder Upper shaft Needle Presser module Application of Assembly Application of Assembly Bobbin winder Upper shaft Needle Presser module location diagram ...

Страница 89: ...size 7 Needle bar assy N 1 place Oiler Apply liberally tip 20mm 8 Thread take up lever 1 place EPNOC AP N 0 Rice grain size 9 Needle bar crank 2 places EPNOC AP N 0 Rice grain size 10 EPNOC AP N 0 Small amount 11 Needle bar block shaft 1 place MOLYKOTE M DISPERSION 1 to 2 drops 12 Shaft 1 place EPNOC AP N 0 Rice grain size 13 Lower shaft bushing 1 place FBK OIL RO 100 1 to 2 drops Mix the MOLYKOTE...

Страница 90: ...urn the presser bar sub assy to the direction of the arrow 90 degrees and align the pin with the groove And slide the presser bar sub assy to the direction of the arrow 3 Set the spring XC4900 to the presser bar sub assy And set the presser bar guide to the base holder assy and the presser bar sub assy and secure it with the two screws screw pan S P washer M3X6 Screw Pan S P washer M3X6 Spring XC4...

Страница 91: ...o the shaft of base holder assy 7 Set the pin of needle bar supporter assy to the positioning hole on needle bar supporter guide and set the needle bar supporter assy to the shaft of base holder assy And set the nut 2 M3 to the needle bar supporter presser and tighten them to the shaft of base holder assy 8 Set the spring plate to the base holder assy and secure it with the screw screw pan S P was...

Страница 92: ...ide hole of base holder assy and tighten the screw set screw socket FT M4X4 temporarily Key point Fully tighten the screw after performing 4 14 Needle bar height 11 Set the thread take up lever to the needle bar crank rod assy and secure it with the screw screw flat SM3 57 40X7 L Key point The screw is reverse threaded Set Screw Socket FT M4X4 Hex wrench 2 0 mm Base holder assy Needle bar block Ne...

Страница 93: ...r link to the shaft and the shaft of thread take up lever And set the spring XF3413 and the washer and attach the retaining ring E4 14 Set the presser foot holder to the presser bar sub assy and secure it with the screw tightening screw 3 57 Tightening screw 3 57 Spring XF3413 Tightening screw 3 57 Presser foot holder Retaining ring E4 Needle bar block shaft Thread take up lever Needle bar crank r...

Страница 94: ...embly 3 36 Bobbin winder Upper shaft Needle Presser module Application of Assembly Application of Assembly 3 Assembly of Upper shaft assy 1 Attach the pulley to the upper shaft supply assy Upper shaft supply assy Pulley ...

Страница 95: ...plication of Assembly Application of Assembly 4 Assembly of Bobbin winder assy 1 Attach the bobbin winder rubber band to the bobbin winder assy 2 Attach the bobbin winder assy to the bobbin winder spring plate Bobbin winder assy Bobbin winder rubber band Bobbin winder spring plate ...

Страница 96: ...Application of Assembly 3 38 Pattern selecting mechanism Application of Assembly Application of Assembly Pattern selecting mechanism location diagram ...

Страница 97: ...il type Quantity of lubrication 1 Selecting cam shaft 1 place EPNOC AP N 0 Rice grain size 2 Feed regulator guide pin 1 place EPNOC AP N 0 Rice grain size 3 Unit base F assy 1 place EPNOC AP N 0 Rice grain size 4 Selecting cam 14 1 place EPNOC AP N 0 Light covering Unit base F assy Selecting cam shaft 2 Feed regulator guide pin 3 1 4 Selecting cam 14 ...

Страница 98: ...ng hole A of feed regulator plate A assy 3 Set the feed regulator plate B to the pattern selecting unit assy Key point Confirm that insert the shaft A of pattern selecting unit assy into the positioning hole of feed regulator plate B and align the feed adjusting screw with the positioning hole B on feed regulator plate A assy 4 Attach the retaining ring E5 to the shaft B of pattern selecting unit ...

Страница 99: ...Application of Assembly 3 41 Needle threading mechanism Application of Assembly Application of Assembly Needle threading mechanism location diagram ...

Страница 100: ...on control stud 3 Set the tension control knob to the thread tension stand and secure it with the screw taptite bind B M3X10 And attach the thread tension label to the tension control knob 4 Align the three tabs of thread tension stand with the three notch parts of tension control holder assy as shown in the illustration below And set the thread tension stand to the tension control holder assy and...

Страница 101: ...Application of Assembly 3 43 Feed unit Application of Assembly Application of Assembly Feed unit location diagram ...

Страница 102: ...ze 8 Feed arm A sub assy 2 places Oiler 1 to 2 drops 9 5 places EPNOC AP N 0 Rice grain size 10 Feed adjuster 2 places EPNOC AP N 0 Rice grain size 11 Vertical adjuter screw 1 place EPNOC AP N 0 Rice grain size 12 Feed stand spring cap 2 places EPNOC AP N 0 Rice grain size 13 Feed arm A pin 2 places EPNOC AP N 0 Rice grain size 14 Lower shaft bushing 1 place FBK OIL RO 100 1 to 2 drops Feed arm A ...

Страница 103: ...end face of fixed joint and the edge of cut surface on lower shaft A sub assy are the same positions Confirm that the screw hole of fixed joint and the cut surface on lower shaft A sub assy are the same positions 3 Set the lower shaft bushing of lower shaft A sub assy to the mounting position of feed holder and attach the bushing presser to the feed holder with the two screws taptite pan P S P W 3...

Страница 104: ...outer rotary hook shaft into them and secure them with the screw set screw socket CP M4X6 Key point Set it so that the larger end of the feed cam on the lower shaft A assy facing backward and set the outer rotary hook assy with the mark facing frontward Set Screw Socket CP M4X6 Hex wrench 2 0 mm Taptite Pan P S P W M3X12 Outer rotary hook shaft Washer Magnet Washer Outer rotary hook assy Taptite p...

Страница 105: ...roove B of horizontal feed shaft while pushing horizontal feed shaft washer in the direction of the arrow 7 Set the feed supporting plate to the feed arm B assy and secure it with the screw taptite cup B M4X10 And set the feed arm B assy to the shaft of feed arm A sub assy and secure it with the two hooks Taptite Cup B M4X10 Horizontal feed shaft spring XF3451 Groove A Retaining ring E3 Groove B H...

Страница 106: ...ing positions of feed holder and secure them with the two screws taptite pan P S P W 3X12 Key point Confirm that there is cam of lower shaft A sub assy between feed supporting plate and feed arm B assy Taptite Pan P S P W 3X12 Mounting positions Cam of lower shaft A sub assy Feed supporting plate Horizontal feed shaft presser Horizontal feed shaft presser Taptite pan P S P W 3X12 Horizontal feed s...

Страница 107: ...ction of the arrow and lock it Key point Confirm that the feed adjuster is attached in the direction of the illustration below 10 Insert the shaft of feed arm B assy into the groove of feed adjuster and set the feed adjuster holder to the feed holder and secure it with the two screws taptite pan P S P W 3X12 Taptite Pan P S P W 3X12 Feed adjuster spring XF5127 Feed holder Feed adjuster Groove Feed...

Страница 108: ... of feed stand spring cap with the notch part of feed stand and turn the feed stand spring cap 90 degrees while pushing it 13 Set the vertical feed spring plate to the feed stand and secure it with the two screws screw bind M3X3 Screw Bind M3X3 Feed stand spring XF3457 Feed stand Feed stand spring cap Feed stand spring XF3457 Vertical feed spring plate Screw bind M3X3 Vertical adjuster screw Tab A...

Страница 109: ...cure them with the four hooks 15 Set the feed dog to the feed stand and tighten the two screws bolt socket M3X5 temporarily Key point Fully tighten the two screws after performing 4 22 Left and right stitch of buttonhole stitch length Bolt Socket M3X5 Hex wrench 2 5 mm Hooks Bolt socket M3X5 Feed stand Feed arm A pin Feed arm A pin Hooks Feed arm A sub assy Feed arm B assy Feed dog ...

Страница 110: ... four screws taptite pan P S P W 3X12 20 Set the needle plate A to the needle plate B and secure it with the two screws screw pan P washer M2 6X6 21 Hang the hook of needle plate B on the needle plate holder assy and set the needle plate B to the needle plate holder assy and secure it with the two screws screw needle plate Screw Pan P washer M2 6X6 Screw Bind M3X3 Taptite Pan P S P W 3X12 Screw ne...

Страница 111: ...embly 3 Assembly of Lower shaft B assy 1 Insert the timing pulley D into the lower shaft B sub assy and secure it with the retaining ring E6 2 Insert the lower shaft bushing into the lower shaft B sub assy Retaining ring E6 Timing pulley D Lower shaft B sub assy Lower shaft bushing ...

Страница 112: ... the tension pulley holder B assy and tighten the screw screw pan S P washer M4X8 temporarily Key point Fully tighten the screw after performing 4 6 Motor belt tension 3 Set the spring XF3404 to the boss of motor tension pulley assy and insert them into the shaft of tension pulley holder B assy and secure them with the retaining ring E3 And hang the hook of spring on the one of five notches on the...

Страница 113: ...Application of Assembly 3 55 Main motor unit Application of Assembly Application of Assembly Main motor unit location diagram ...

Страница 114: ...ert the motor T pulley into the shaft of motor 3P supply assy and insert the pin into the grooves of motor T pulley And then align the tab of motor T pulley with the notch part of frange and set it And secure them with the retaining ring E3 Motor 3P supply assy Retaining ring E3 Frange Shaft Motor T pulley Pin Grooves Notch part Tab ...

Страница 115: ...Application of Assembly 3 57 Main frame and Covers Application of Assembly Application of Assembly Main frame and Covers location diagram ...

Страница 116: ...lication of Assembly 1 Assembly of Base plate L R 1 Attach the two base rubbers A to the base plate R 2 Tighten the adjusting screw assy to the base plate L 3 Attach the base rubber A to the base plate L Base rubber A Base plate R Base rubbers A Base plate L Adjusting screw assy ...

Страница 117: ...2 temporarily Key point Place the bobbin presser with the smaller end facing the rear Fully tighten the screw after performing 4 25 Bobbin winder 3 Attach the spool pin stand to the rear cover 4 Set the spool pin spring to the positioning groove of rear cover 5 Insert the spool pin into the positioning hole of the rear cover while pulling the spool pin spring Taptite Cup P M4X20 Taptite Pan P S P ...

Страница 118: ...of Assembly 3 Assembly of Face plate assy 1 Set the NT lower thread cutter and the face plate cutter holder to the face plate assy and secure them with the screw taptite bind B M3X10 Taptite Bind B M3X10 NT lower thread cutter Face plate assy Face plate cutter holder Taptite bind B M3X10 ...

Страница 119: ...ng timing 4 9 Three point needle drop 4 10 Needle interference left right 4 11 Needle bar rising 4 12 Needle bar height 4 14 Needle clearance 4 15 Left straight stitch needle drop and zigzag stitch maximum left needle drop position 4 16 Feed dog position front back and left right 4 18 Feed dog height 4 19 Upper thread tension 4 20 Left and right stitch of buttonhole stitch length 4 22 Bobbin winde...

Страница 120: ...P M3X16 from the rear cover side 7 Release the five hooks of front cover assy from the five hook trays of rear cover assy and then open the bottom side of front cover assy to remove the front cover assy from the rear cover assy To next page This sewing machine stands up for oneself in the state that the front cover assy and rear cover assy are removed There are feasible adjustments without covers ...

Страница 121: ...ull down the presser foot lifter 10 Remove the three screws taptite cup P M4X20 and then remove the rear cover assy from the arm bed while the A of rear cover assy is bending Taptite Cup P M4X20 Rear cover assy Taptite cup P M4X20 Taptite cup P M4X20 Taptite cup P M4X20 Presser foot lifter A Reverse sewing button ...

Страница 122: ...Inspection Needle point damage 1 Put needle on a level block and check a needle is not bent 2 Slide a needle on your finger and check if moves smoothly no damage on needle point The gap with the block should be even Level block ...

Страница 123: ... and the pattern selecting dial and remove the front cover assy and the rear cover assy 3 Loosen the screw of the tension pulley sub assy 4 Move the tension pulley sub assy back and forth to adjust the tension of the timing belt 5 Tighten the screw of the tension pulley sub assy to secure the tension pulley sub assy to the tension pulley holder B XC2277001 Push pull gauge 5N Screw Pan S P washer M...

Страница 124: ...and the pattern selecting dial and remove the front cover assy and the rear cover assy 3 Check the location of the groove with spring hooked on 4 Loosen the screw of the M tension pulley stopper 5 Turn the M tension pulley stopper and adjust the clearance between the M tension pulley stopper and the motor tension pulley holder 6 Tighten the screw of the M tension pulley stopper to secure the M ten...

Страница 125: ...ontact the protrusion A of the inner rotary hook assy to the spring plate and then push the inner rotary hook assy to the needle side from front to rear 3 Loosen the four screws of the needle plate holder assy 4 Move the needle plate holder assy to front back and adjust the overlap between the spring plate of the needle plate holder assy and the protrusion A of the inner rotary hook assy 5 Tighten...

Страница 126: ...river from the rear cover hole to turn the screw and adjust the position of the presser foot hole and the needle plate hole in the front back direction Key point Loosen the screw turn to the direction of A Move the needle to the front side A Tighten the screw turn to the direction of B Move the needle to the rear side B Presser foot lifter Presser foot Cup screw M3X20 Rear cover Screwdriver Back s...

Страница 127: ...lley is turned by hand from the rear to the front check that the needle flow from left to right is normal And check that the upper shaft rotation is not too heavy Key point If you find any error in needle swing timing reattach the upper shaft to engage markings on the worm gear and the pattern cam Refer to 2 30 Starting position of lateral motion Stopping position of lateral motion More than 6 5 m...

Страница 128: ...int comes to the needle plate surface Needle bar is left side 8 Loosen the screw of the zigzag adjusting nut 9 Adjust the left right needle drop position so that the same to the center of the needle hole by turning the zigzag adjusting nut with a spanner Key point Adjust it within the range where the large side of the eccentric amount of the zigzag adjusting nut is upper side 10 Tighten the screw ...

Страница 129: ...e 4 is the topmost position 5 Loosen the screw of the needle bar supporter guide 6 Adjust the left right needle drop position so that the same to the center of the needle hole by moving the knob of the needle bar supporter guide back and forth 7 Tighten the screw of the needle bar supporter guide to secure the needle bar supporter guide to the base holder 4 Pattern selecting dial Screw 3X10 Base h...

Страница 130: ...e front cover assy and the rear cover assy 3 Remove the needle plate assy the presser foot and the inner rotary hook assy 4 Attach the size 90 14 needle 5 Attach the pattern selecting dial 6 Turn the pattern selecting dial until the 11 is the topmost position 7 Loosen the two screws of the fixed joint on the lower shaft B 8 Raise the needle bar up 3 1 mm from its lowest point by turning the pulley...

Страница 131: ...uter rotary hook point D cut on the lower shaft A should be facing inward 10 Tighten the two screws of the fixed joint on the lower shaft B to connect the lower shaft A and B Confirmation When the needle is lowered to the lowest point by turning the pulley by hand check that the feed dog is lowered Set Screw Socket FT M5X5 D cut Outer rotary hook assy Right edge of needle and tip coincide Needle F...

Страница 132: ...le 5 Attach the pattern selecting dial 6 Turn the pattern selecting dial until the 11 is the topmost position 7 Match up the right edge of the needle with the outer rotary hook point by turning the pulley by hand from the rear to the front 8 Loosen the screw of the needle bar block 9 Move the needle bar up and down and adjust the gap between the top of needle eye and the lower end of the outer rot...

Страница 133: ...e pattern selecting dial 6 Turn the pattern selecting dial until the 11 is the topmost position 7 Turn the pulley by hand until the outer rotary hook point aligns with the back side of the needle 8 Adjust the clearance between the scarf of the needle and the outer rotary hook point by turning the needle bar supporter presser by hand Key point Turn the needle bar supporter presser to the direction ...

Страница 134: ...e front cover assy and the rear cover assy 3 Attach the size 90 14 needle 4 Attach the pattern selecting dial 5 Turn the pattern selecting dial until the 4 is the topmost position 6 Turn the pulley by hand and move the needle bar to its leftmost position 7 Lay a paper on the needle plate and lower the presser foot lifter to lower the presser foot And make a pinhole with needle point by turning the...

Страница 135: ...d move the plate by turning a flat screwdriver and move the needle point left and right And adjust them so that the pinhole on paper matches up with the needle point Key point Turn a flat screwdriver to the direction a Move the needle point to right side Turn a flat screwdriver to the direction b Move the needle point to left side 12 Tighten the screw of the pattern selecting unit assy Key point N...

Страница 136: ... 10 is the topmost position 3 Turn the pulley by hand and move the feed dog to the front position 4 Remove the two screws of the needle plate assy and remove the needle plate assy 5 Loosen the two screws of the feed dog Set the needle plate assy temporarily and adjust the position of the feed dog 6 Tighten the two screws of the feed dog to secure the feed dog to the feed stand assy 7 Tighten the t...

Страница 137: ... move the feed dog to its highest position 4 Insert the hex wrench into the hole of the needle plate and adjust the feed dog height from the surface of the needle plate by turning the vertical adjuster screw Key point Loosen the vertical adjuster screw turn to the direction of a The feed dog is lowered Tighten the vertical adjuster screw turn to the direction of b The feed dog is raised Hex wrench...

Страница 138: ... Raise the presser foot lifter 5 Pass the schappe spun thread 60 through the tension disc and lower the presser foot lifter Close the tension disc 6 Pull the thread up slowly with the tension gauge and measure the thread tension 7 Adjust the thread tension by turning the gear of tension control stud by hand Key point Turn the gear to the direction of A The thread tension is smaller Turn the gear t...

Страница 139: ... gear of tension control stud 9 Tighten the screw while holding the tension control knob 10 Attach the thread tension label to the tension control knob Key point Thread tension label should be attached by matching its slit to the marked position on the tension control knob Gear of tension control stud Tension control knob Groove Taptite Bind B M3X10 Screw Tension control knob Screwdriver Thread te...

Страница 140: ...left reverse right forward stitches should be 35 to 50 per 20 mm The stitch difference should be within 10 Adjustment 1 Attach the size 90 14 needle 2 Set the BH foot 3 Attach the foot controller and turn on the power 4 Execute the bar tack sewing 20 mm or more to the double broadcloth with a schappe spun thread 60 and check the number of stitches of the left reverse stitch and right forward stitc...

Страница 141: ...stitches should be 35 to 50 per 20 mm Key point Turn the feed adjusting screw to the direction A Right forward stitch length is longer The number of stitches decreases Fig 1 A Turn the feed adjusting screw to the direction B Right forward stitch length is shorter The number of stitches increases Fig 1 B 8 Tighten the nut 4 of the feed adjusting screw on the feed regulator plate A B to secure the f...

Страница 142: ...The number of left reverse stitches should be 35 to 50 per 20 mm And stitch difference should be within 10 Key point Turn the BH adjusting dial to the direction A Left reverse stitch length is longer The number of stitches decreases Fig 2 A Turn the BH adjusting dial to the direction B Left reverse stitch length is shorter The number of stitches increases Fig 2 B BH adjusting dial NG A B NG OK b b...

Страница 143: ...ound parallel to the bobbin Key point When uneven bobbin winding is the upper side move the thread guide assy downward Fig 1 a When uneven bobbin winding is the lower side move the thread guide assy upward Fig 1 b 5 Tighten the screw of the thread guide assy to secure the thread guide assy 6 Loosen the screw of the bobbin presser 7 Turn the bobbin presser left and right to adjust the bobbin windin...

Страница 144: ...n plate Key point Pass the thread through into the back of the groove of the thread tension plate 4 Pull the thread slowly from the inner rotary hook assy with the tension gauge and measure the thread tension 5 Adjust the thread tension by turning the tension adjusting screw of the inner rotary hook assy Key point The tension adjusting screw is secured with the thread locker 6 Secure the tension a...

Страница 145: ...5 5 1 Sewing lamp does not light 5 2 Main motor does not turn or Rotation speed is slow 5 3 Failure Investigation for Electronic Parts ...

Страница 146: ...er plug from the socket of the machine is the voltage between pins A of the plug 108 to 132V AC for 120V AC countries 1 Y N N Connect it properly Is the LED lamp assy connector connected to the power supply PCB CN2 correctly Y Refer to Fig 1 Refer to Fig 2 Fig 2 When disconnect the LED lamp assy connector from the power supply PCB CN2 is the voltage between pins 1 and 2 at CN2 10 to 12V DC Refer t...

Страница 147: ... the socket of the machine and turn on the power switch is the resistance between pins A of the socket 60 to 80Ω for 120V AC countries 1 Y Y Refer to Fig 1 Main motor does not turn when pressing foot controller or Rotation speed is slow N Y Does the pulley turn smoothly Is the sewing lamp turned on Refer to 5 2 Sewing lamp does not light Reassemble the upper shaft assy Replace the motor 3P supply ...

Страница 148: ...6 1 6 Motor 3P supply assy 6 2 LED lead wire 6 3 Special Instructions of Wiring ...

Страница 149: ...supply assy 1 Attachment of motor Attach the motor so that the outlet of motor cable is the lower side Outlet of motor cable Motor Cable guide Pass the motor cable through the cable guide of motor holder Motor holder Motor cable Protrusion Base plate Motor holder 3P socket unit Motor Outlet of motor cable ...

Страница 150: ...en wiring the LED lead wire to the rear side of arm bed Screw LED lamp PCB LED lead wire Connector Screw Cord clamps PCB Set the cord clamp to the LED lead wire and secure it to the arm bed with the screw correctly 2 locations Be careful not to catch the LED lead wire because the ribs of rear cover contact here Be careful not to catch the LED lead wire because the ribs of rear cover contact here ...

Страница 151: ......

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