SERVICE Manual
Contents
1. Make right hand edge of convex portion of bobbin rr 0 3 to 0 5 mm case positioning finger spring align with right hand edge of needle Temporarily tighten setscrew hold clearance of 0 3 to 0 5 mm between inner hook and bobbin MN Bobbin case positioning finger case positioning finger and securely tighten set Front view screw X Bobbin case positioning finger should not come 5 contact with hook 96 a X Bobbin case positioning finger should not inter Bobbin case positioning fere with hook finger spring 9 Momentum of thread take up spring absorbing amount of thread O Thread take up spring has to be installed at posi tion of 10 0 5 mm from thread guide as shown in the figure below O Perform adjustment with thread take up spring adjusting plate 10 5 0 5 mm Thread take up spring Thread take up spring Thread tensioner adjusting plate adjusting plate and setscrew thread guide 10 Tension of thread take up spring Pass needle thread up to thread tensioner thread guide Lower presser foot and draw needle thread Adjust tension of thread take up spring to 0 176 to 0 245N when thread take up spring starts lowering For adjustment loosen thread tensioner setscrew and turn thread tensioner Turning clockwise increasing tension of thread take up spring O O O O Thread take up spring Thread tensioner Thread tensioner tensioner s2. 1 NEEDLE LOCKSTITCH SEWING MACHINE WITH AUTOMATIC THREAD TRIMMER FOR PROFESSIONAL TL 2010Q 2000Q I SERVICE MANUAL o 5 1 SPECIFICATIONS OF 20100 200001 42 12 2 1 2 NAMES OF 8 4 3 3 DISASSEMBLY AND 55 4 400 3 4 PRINTED CIRCUIT BOARD DIAGRAM CONNECTOR LAYOUT 15 5 ADJUSTMENTS OF COMPONENTS rennen 16 WARNING To avoid the risk of fire electric shock injury to persons or damage to components especially keep the following When disassembling assembling or adjusting the sewing machine remove the power plug When assembling be careful about the electrical cord being caught with other components damage to the covered parts of the cord or miswiring When replacing the part s use the genuine part s 1 SPECIFICATIONS OF TL 2010Q 2000Q 1 Power switch ON OFF 2 step changeover switch common to lamp located at the belt cover section of the right hand side of main unit 2 Drive control components Drive Built in motor timing belt method Control Foot pedal controller method 50 to 1 500 sti min Low speed rotation of 50 sti min while needle up down switch is ON 3 Table stand and handle components Main unit Portable type main unit
3. X When thread trimmer solenoid asm is set to ON it has to interlock thread trimmer auxiliary cam 0 5 to 1 0 Thread trimmer auxiliary link i Ta TZ Duo i ne We Thread trimmer solenoid D Thread trimmer auxiliary cam 7 Thread trimmer solenoid setscrew d a 3 Thread trimmer cam timing Needle to cam position O Loosen setscrews thread trimmer auxiliary thread trimmer cam and roller holding cam Lower needle bar by 37 1 95 mm from its upper dead point O In this state fix hook driving shaft and perform positioning of cams of and 3 1 Positioning of thread trimmer auxiliary cam Make shaft at top end of thread trimmer auxil iary link of solenoid asm come in contact with thread trimmer auxiliary cam and tighten it with setscrew 3 2 Positioning of thread trimmer cam O Face front setscrew No 1 in thread trimmer cam Enter thread trimmer cam contactor shaft to groove in thread trimmer cam O Slightly pressing thread trimmer cam to hand wheel side turn it in reverse direction O Tighten thread trimmer cam with setscrews at place where idling term of cam groove place where rotation is hindered is finished 3 3 Positioning of roller holding cam O Turn pin of link support plate and make it come in contact with concave portion of roller holding cam For lateral position make roller hold
4. Thread trimmer solenoid link 1 to 3 mm 3 7 Confirmation of working and positioning of link arm fixing plate Timing of thread trimmer auxiliary cam thread trimmer cam and thread trimmer holding cam O Set thread trimmer solenoid asm to ON state and make pin at top end of thread trimmer auxiliary link per fectly align with thread trimmer auxiliary cam O Rotate sewing machine by hand up to flat section Q Thread trimmer auxiliary cam Q Thread trimmer of thread trimmer auxiliary cam place where solenoid link A it moves to extreme right hand side At this time thread trimmer solenoid link A moves to right hand side O Looper link arm works and presses moving knife roller arm since thread trimmer solenoid link A moves Turn handwheel and confirm time when link sup port plate pin rides on flat portion of roller holding cam Moving knife arm O Confirm that thread trimmer contactor shaft caulked in moving knife roller arm enters groove in thread trimmer cam Moving knife Press thread trimmer contactor shaft section roller arm of moving knife roller arm to make it come contact with moving knife arm asm c EL O Insert a clearance gauge of 0 5 mm to contact part of moving knife roller arm asm and looper link arm asm and press looper link arm asm to moving knife roller arm asm Nut Looper link arm 7 0 5 spacer al mt Link arm support O n aforementioned stat
5. TL 2010Q TL 2000Qi Thread guide No 1 First tention Thread guide rod Arm cover asm Bobbin winder shaft fn Belt cover gt Handwheel Stitch dial x Needle up down switch Speed limit vr knob only for TL 2010Q Automatic thread trimming switch Reverse feed stitch lever Drop feed knob Bed cover Bed cover rubber seat Hole for knee lifter lever setting Thread take up spring adjusting plate Needle threader lever Page 11 Wire holder 2 222 9 12 Knee lifter lever 10 13 Hook driving shaft pulley 11 14 Hand lifter lever 12 15 Drop feed knob 12 Automatic thread trimming components 1 Looper mas asm 13 2 Moving knife arm installing plate mas asm 13 Moving knife base mas asm 14 4 Thread trimming solenoid mas asm 14 3 Convex of presser Outer Components spring regulator knob Slit of presser regulating screw 1 Arm cover asm Q Arm cover setscrew lo SM5042005SN S e im Qoa rs 2 i y qu abo Bobbin c MAIN Sidi winder board case cover connector Disassembly Assembly Remove two setscrews O Insert Q connector O There should be no torsion or Disconnect and remove con o Align convex with G slit and distorsion
6. How to adjust O Open face cover Perform confirmation with HAX1 714 needle Turn handwheel by hand to bring needle bar near to high est point Then stop needle bar at position where needle bar guide setscrew can be seen from adjustment hole of threader support plate Press down threader lever to lowest point and check that clearance between top end of threader hook and top end of needle eyelet is 0 to 0 1 mm when threader hook is turned Insert hexagonal wrench key 1 5 mm from adjustment hole of threader support plate and slightly loosen needle bar guide setscrew When hook is lower gt move needle bar guide upward and temporarily tighten it When hook is higher gt move needle bar guide downward and temporarily tighten it Perform adjustment while confirming position in terms of needle eyelet When hook is out of place in lateral direction perform correc tion of bend of hook with tip of a thin screwdriver or the like or replace threader hook with a new one When hook is adjusted to aforementioned position securely tighten setscrews Threader support plate setscrew upper Threader support plate Needle bar 0 di T AN 77 c AME K CoL pr oncndl e fey om tg EL 9 0060 BS CCE e g 7 rej X 2 d LY NAS o e Threader support plate
7. Threader support plate mas asm Presser bar connection setscrew 5 8060502 Presser bar connection asm Presser bar lifting lever Threader support plate setscrew lower Hand lifter lever SM4040655SN Presser bar i Disassembly Assembly Lower lever and loosen set o Attach regulator screw Set spring under indicating screw O Set lever to frame and then needle o Drawing upward remove set connection Lower lever and temporarily spring Attach spring when setting tighten it at the position where top o Remove connection and lever presser bar from upper side end of protrudes approximately o Remove regulator Q screw 4 mm from frame Do not remove indicating needle X For the adjustment see item 3 on X is hard to remove since secrew page 17 mark is attached O Needle should not interfere with presser foot 5 Needle bar Needle bar upper bushing felt Preparation Remove arm cover asm Needle bar crank IA K o Remove face plate mas asm left screw lb 4 ant 19 Needle bar connection setscrew O Remove presser bar NM 22 SM8060510SP Remove needle bar threading Ma lle guide as well SREY OH i Q Needle bar threader guide setscrew oa t ES Needle bar thread bracket Q Needle bar setscrew A1420 001 000 w Needle clamp Remove O Attach crank rod and tighten it with o
8. 0 5 to 1 0 mm and tighten stoper plate with set screw 0 5 to 1 0 mm Looper Rubber stopper 5 Position of nut of wire setscrew Adjustment of thread tension disk open close O Lower presser foot O Move thread trimmer solenoid link A with thread trimmer auxiliary cam Thread tension disk has to open at the time when roller rides on thread trimmer auxiliary cam Disk rise of 0 5 to 0 7 mm at scale 3 5 O Perform adjustment with nut on left hand side after loosening nut on right hand side O Perform fixing with nut located outside Looper installing bace Nut of setscrew Wrench 9 mm JUKI CORPORATION 2 11 1 Tsurumaki Tama shi TOKYO 206 8551 JAPAN PHONE 81 42 357 2341 FAX 81 42 357 2345 Copyright C 2010 JUKI CORPORATION All rights reserved throughout the world 40099556 000510
9. 2790 0085 SS sa 3 Wee IIT S Lara s S Remove moving knife arm spring E Wiz pem mus VAR lt Thread trimmer clutch plate collar Moving knife link shaft A Moving knife link D Thread trimmer clutch plate E ring E 4 collar setscrew Q Moving knife arm spring o Remove E ring Attach moving knife arm installing O Set moving knife link and wire X Do not remove moving knife plate mas asm setscrew link Remove together with moving Note See the point on the right side Position of moving knife knife arm installing plate Temporarily tighten setscrews Hemove hook and see from the o Remove nut on the left side o Attach E ring of link shaft reverse side of bed only Temporarily tighten looper See item 1 on page 23 O Remove thread trimmer clutch mas asm plate collar setscrew and o Attach moving knife arm thread trimmer clutch plate collar spring o Remove two screws and re o Determine position of moving move installing plate mas asm knife and securely tighten At this time simultaneously Note Refer to assembling of moving move moving knife link knife and looper mas asm xX To prevent moving knife link from warping O See item 5 on page 27 for ad justment of nut of wire du 3 Moving knife base mas asm Preparation O Remove bed cover
10. contact of roller arm to groove of B cam O Turn hook driving shaft in the re verse direction and set belt at the position where it stops 14 Hand lifter lever Hand lifter lever or Hand lifter lever shaft set screw Flat part Hand lifter lever shaft QI P screw y N ND Disassembly Assembly Loosen hand lifter lever shaft set o Put hand lifter lever shaft into o End face of hand lifter lever screw the hole in the frame shaft should not jut out from Insert M4 screw into tapped Secure hand lifter lever shaft the frame surface hole in hand lifter lever shaft by by tightening hand lifter lever 3 to 4 screw threads shaft setscrew in such a way O Hold screw head and draw out the that the tip of setscrew comes screw in contact with the flat part on O At the same time also draw out hand lifter lever shaft hand lifter lever shaft Remove hand lifter lever 15 Drop feed knob Drop feed sb e E ring Q Wire installing plate asm Ps DF adjusting arm spring DF adjusting arm asm Drop feed knob shaft setscrew Disassembly Assembly Set drop feed knob to NOT o Pass drop feed knob through It is easy to remove spring FEED remove drop feed knob Q wire installing plate when drop feed knob is set to shaft setscrew and remove o Assemble DF adjusting arm FEED side E ring of drop feed knob spring whi
11. cut and returns to the ON state when temperature has fallen Main unit 452W x 219L x 350H mm Weight 11 5kg 9 Power consumption Whole sewing machine 120V 1 4A 60Hz 2 Names of Components Thread guide base Presser spring regulator Indicating needle of presser spring regulator Face cover Pressure indicating plate Thread take up thread guide Thread take up spring Presser bar connection thread guide X Hand lifter lever e LED lamp Needle bar thread guide Needle bar thread bracket Side cover Throat plate asm Standard presser foot asm 3 Disassembly assembly Page Outer Components 1 Arm cover asm 4 Belt cover and motor cover 4 Face plate asm 4 4 Bed cover mas asm 5 5 MAIN circuit board asm 5 Function components Motor asm and transformer asm 5 2 Handwheel and clutch 6 Thread tensioner asm 6 4 Presser DO sivcedsvecenacinundacseiunovntevesssaiamafawts 7 5 Needle bar 7 6 Thread take up 8 7 Reverse feed stitch lever 8 8 9 9 10 Automatic thread trimming switch case 9
12. in presser spring regu nector tighten the setscrew lator O Align precisely slit portion with convex portion O Do not press each lead wire Arm cover cove 2 Belt cover and motor cover Belt cover setscrew SM5041255SN Disassembly Assembly Remove four setscrews and Attach belt cover and tighten 0 O There should be no difference remove belt cover setscrews in level between belt cover and Motor cover setscrew SM5041255SN Remove three setscrews and Attach motor cover and tighten front face of frame remove motor cover setscrews O Make motor cover come closely contact with belt cover 3 Face plate asm Lamp connector LE Preparation O Remove arm cover Q Face cover O Indicating needle of IU presser spring regulator T CN ac T b a EN Ti J Face plate asm Face plate asm setscrew Pa SL5040631SE PES 9 Hand lifter lever spring Disassembly Assembly Disconnect connector and o Attach face plate asm tighten o There should be no difference in remove it with face plate asm set level around the cover when face Remove setscrews and re screws and attach Q hand lifter cover is closed move face plate asm lever spring should not come in contact together with face cover O Insert connector with indicating needle 4 Bed cover mas asm Bed cover setscrew SM5051255S
13. mas asm y y guide setscrew Threader support plate Threader lever O 9 d Threader hook o 0 mm Caution Hook has to smoothly pass needles HAX1 and HLX5 711 to 716 200 Automatic Thread Trimmer Mechanism 1 Positioning of moving knife arm installing plate Adjustment of position of moving knife O Loosen nut of setscrew Loosen setscrews in installing plate and move Moving knife arm installing plate setscrew installing plate to the right or left to obtain position Nut of setscrew Tighten setscrews in installing plate Reference substitution Position of moving knife See from under side of i bc bed ue i 8 Overlapping amount of slot of moving knife base with portion R of moving knife is 0 to 0 5 mm such extent that portion R of moving knife is slightly seen from slot Lamm ns Figure observed from the rear after removing hook Counter knife Moving knife base Align top end of moving knife with border of black coloring section and polished plane of counter knife 2 Installing position of thread trimmer SOL solenoid Move thread trimmer solenoid asm to the right and left to adjust so that clearance between thread trimmer auxiliary link thread trim mer auxiliary cam is 0 5 to 1 0 mm and tighten it with setscrews
14. mm Ghee Shaft arm setscrew Vertical feed shaft arm Lower feed dog in the normal feed operation and align it with top surface of throat plate At this time clearance provided between needle top and top surface of throat plate is 0 0 2 mm Perform adjustment with feed cam setscrew Needle HA x 1 14 Top surface of throat plate joa mm OT 6 Needle to hook timing O O 7T Clearance between needle and hook Loosen three setscrews in hook Adjust blade point of hook and left edge of needle to 0 to 0 2 mm when needle bar lifts by 2 17 mm from its lower dead point Check clearance between needle and hook and tighten setscrews Hemove bobbin case positioning finger to im prove the work Standard of position of 2 mm from lower dead point of needle bar is that of engraved lines to Q on needle bar Lower dead point Position of lifting 2 mm Loosen three setscrews in hook Adjust blade point of hook to position of 0 2 mm from left edge of needle Adjust clearance between blade point of hook and needle to 0 02 to 0 07 mm Temporarily tighten setscrews check timing and securely tighten setscrews Feed cam setscrew NON NNNM CMM cJ QN Lifting amount 0 to 0 2 2 17 mm 5 Needle 0 to 0 2 Blade point lt 0 02 0 07 18 8 Position of bobbin case positioning finger Loosen bobbin case positioning finger set Needle Screw
15. with soft case Case is folded in two and packed with main unit One touch type auxiliary table knee lifter is provided as standard Packed together Handle Pull up down from machine main unit type Table stand Separately sold fully sunken type table and stand can be used 4 Arm and bed components Material Aluminum die casting arm and bed separate body type Bed form Flat bed portable type 5 General mechanism 1 Thread take up Slit type link thread take up for one touch threading 2 Hook DB type horizontal full rotary hook Pressing pressure adjustment Stepless adjusting screw with pressing pressure indicator method 4 Lighting device Built in face cover Switch Slide type Lamp Halogen lamp 5 Needle thread post Two posts for small thread spool and large thread spool Thread guide of thread post is of draw out type and capable of one touch threading 6 Bobbin thread winder One touch action Starting method by controller Automatic stop when bobbin thread winding completed 7 Needle thread threading One touch threading from thread spool to needle tip 8 Presser foot Commercially available presser foot for industrial sewing machine SL2 can be used Setscrew type 9 Lift of presser foot By lever 7 mm Max by lever 10 mm By knee lifter 12 mm 10 Thread tension Disk pressure adjusting type with simplified disk pressure scale 11 Drop feed 2 step changeover by knob method Feed dog UP DOWN 1
16. 2 Power switch ON OFF 2 step 6 Feed mechanism 1 Feed amount adjustment Dial method Stepless to 6 mm 2 Reverse feed stitch Lever method Feed amount conforms to that of normal feed stitch 7 Special mechanism 1 Automatic thread trimming 2 Needle bar stop position 3 Automatic needle hole threading 4 Needle up down switch Thread trimming switch is used in common for pushbutton type and for external foot pedal switch type Switch fails to work even when pressing it within two seconds after the rotation of thread trimmer Electric brake stop method Stop by controller Down stop Stop by automatic thread trimming UP stop Stop by bobbin winder UP stop Hook section rotates and automatically returns by lowering threading lever Switch is of pushbutton type and up down stop can be performed by half rotation of main shaft when operating switch for a short period of time When switch is continuously held ON sewing machine continuously runs at a speed of 80 sti min until switch is turned OFF 5 Prevention of reverse setting of needle Needle is attachable to normal direction only 6 Motor protection Overcurrent Overheat 8 Dimensions and weight When motor is locked for 0 5 to 1 second due to sudden overload motor power is automatically turned OFF and returns to the ON state immediately When motor temperature has abnormally risen motor power is turned OFF thermal
17. 55SN n Aes Vor A Disk pressure release ke a Thread release plate ES connecting Ung NUM le Q Thread release plate shaft 2 Disassembly Assembly Remove nut left side only O Lay wire in frame O Pass the wire through full reverse o Remove setscrew and remove o Connect thread release plate side of stitch dial tube presser with disk pressure release con o Contact and with each oth o Remove setscrews and re necting link er move wire holder mas asm Assemble wire holder mas asm For tube has to come out by O Remove setscrew in thread re and tighten with setscrews 13 mm from tube presser lease plate shaft and remove Fix and in the reverse side Tube presser and tube regarding thread release plate of machine bed should be on the same face X When removing the wire from See item 5 on page 27 for frame make sure of wire route in frame 12 Knee lifter lever Preparation Knee lifter lever shaft spring setscrew SM5030455SF O Remove outer components Excluding belt cover and motor cover 5i As D 2 O Raise presser foot pS SO A NT i i ay D Knee lifter Claw lever actuating plate lever shaft Knee lifter lever setscrew 5 8040602 Knee lifter link snap Knee lifter lever shaft Knee lifter link asm claw lever plate VNDE LL gg Ln 4 X VAN
18. Bobbin winding shaft Setscrew To strike Bobbin winding shaft base adjusting plate Position of leaf switch How to adjust 1 Adjust so that a clearance of 0 9 mm or more should be provided between leaf switch and bobbin wind ing shaft base adjusting plate when bobbin winding shaft is ON and so that leaf switch is securely turned ON when bobbin winding shaft is OFF Then tighten leaf amp switch setscrew Bobbin winding shaft ON leaf SW OFF Bobbin winding shaft OFF leaf SW ON 0 9 mm or more Q Leaf SW Leaf SW setscrew Bobbin winding shaft base adjusting plate Adjustment of amount of bobbin thread wound round bobbin How to adjust 1 Tighten bobbin winder switch contactor plate with setscrew at the position where bobbin winder switch is turned OFF when amount of bobbin thread wound round bobbin becomes 18 mm in diameter Bobbin winder SW contactor setscrew Bobbin winder SW D Bobbin winder SW contactor plate O 14 Position of threader support plate mas asm How to adjust O Open face cover and remove arm cover asm 1 Temporarily tighten threader support plate mas asm with setscrews Adjust threader support plate mas asm so that position of threader shaft is 10 5 mm making needle bar as reference Then securely tighten setscrews Needle bar Threader shaft 15 675 mm setscrew lower 15 Vertical position of threader hook
19. EQ rm i Ur ALES E NS Claw lever shaft N ae BD Je X e AES aN setscrew gd V Je OGA SM5041255SN 7 Knee lifter lever shaft stop Claw lever D plate setscrew actuating SM5040855SN plate Disassembly Assembly O Remove snap pin Attach to frame and tighten There should not be a play in the Remove setscrews and setscrews axial direction of knee lifter le move Set lever shaft attach claw ver shaft o Remove setscrew and take out lever actuating plate and tighten it lever spring with O Lower and turn it to the posi Attach lever spring and tighten tion where amp can be removed with 0 o Remove remove claw lever o Raise frame attach knee lifter actuating plate and draw out lever to knee lifter lever shaft o Remove claw lever shaft set and tighten it with screw O Enter snap pin Remove link asm dc 13 Hook driving shaft pulley Preparation O Remove outer components Excluding stop solenoid O Loosen idler O Remove needle Thread trimmer cam screw No 1 Q Hook driving shaft pulley eccentric shaft 91 SO my Poet oJ 53118 90 2 mm x 2G cnn EA THM TMS Moving knife roller arm Thread trimmer cam Illustration of hook driving shaft pulley Q E ring groove NHS Dee 2 D CA Cis IV LL D
20. N Remove six setscrews and re Attach bed cover and tighten set move bed cover screws 5 MAIN circuit board asm Preparation O Remove arm cover asm O Remove MAIN circuit board case cover and lamp connector Note Setscrew to set the circuit board and cover to circuit board case x Do not insert in the reverse direction MAIN circuit board setscrew MAIN circuit board case setscrew A SL5030831SF X Porality exists 9 clip band 3 places See page 15 MAIN circuit board case Do not loosen this setscrew SM5031401SE 52 Never loosen this screw screw o Remove 7 connectors of each Press play of circuit board to at o Read the note and understand it tach circuit board to the front side Ther are color indications on the and tighten two setscrews circuit board for inserting connec O Insert each lead wire into con tors nectors lead wire O Cut Q clip bands 3 places Remove setscrews and set screw and remove circuit board Function Components 1 Motor asm and transformer asm Motor setscrew nut setscrew 5 50408555 Motor asm o Remove arm cover asm setscrew L Q1 o Remove belt cover and Cord guide SM5050855SN motor cover respectively o dy Power X Make a memorandum of o y transforme ele cord wiring Remove cord guide plate set screws and 1 in previous item
21. Position of needle bar is the o Remove felt Push up needle place where upper engraved bar upper bushing felt with o Perform positioning of needle bar line of needle bar is aligned and draw it out and tighten needle bar connection with lower end face of needle Loosen setscrew of setscrew bar bushing at the needle lower Pushing needle bar upward is o Set needle bar and attach and dead point acceptable 9 X See item 2 on page 17 for the O Draw out upward O Insert into hole adjustment o Remove left screw and remove Temporarily tighten and perform o See item 15 on page 22 for crank rod adjustment of vertical height after height adjustment of threader attaching threader support plate hook of threader support plate mas asm 6 Thread take up Thread take up supporting shaft setscrew Preparation SM8050602TP Thread take up Remove arm cover asm z Thread Pd un AT _ Support supporting shaft Sule V Remove face plate mas asm HA lo 9 8 5 amp Needle bar crank A SN Remove presser bar 1 1 M i KS Remove needle bar QG ots S oe V cal Q Thread take up Needle bar crank setscrew Disassembly Assembly O Loosen setscrew O Set needle bar crank to thread Tighten setting portion flat por Loosen two setscrews take up attach it onto main unit tion
22. SS ES ie apaa ee eel N a Hook driving shaft pulley E ring E 6 Timing belt Hook driving shaft pulley eccentric shaft bushing Slit on hook driving shaft pulley eccentric shaft Hook driving shaft pulley eccentric shaft setscrew SM8040602TP Hexagon 2 0 mm Make hook driving shaft pulley come out downward Disassembly Assembly O Remove timing belt from main shaft pulley Remove belt and loosen two setscrews Remove E ring and turn to find a place where backlash in hook driving shaft pulley is large O Press and push out bushing to the right side o Draw out and and remove following the point of 62 X Do not make a flaw E ring groove when removing E ring O Enter hook driving shaft 9 pulley Enter eccentric shaft and Set E ring O Remove the play in hook driving shaft with and tighten set screw B Turn shaft slit to adjust back lash in pulley and tighten set screw A O Set belt X Adjust backlash in eccentric shaft by right rotation of X When setting bushing do not make a flaw on the end face of bushing When setting belt onto main shaft refer to thread trimming timing Simple method O Lower needle bar 1 95 mm from its upper dead point O Turn hook driving shaft and orient Q screw No 1 to this side just front Enter
23. and cut Q clip band Loosen cord presser Remove two setscrews and remove motor asm Remove two setscrews and remove transformer asm X Make sure of wiring route O Attach transformer and tighten setscrews O Attach motor asm and tighten setscrews O Fix it with Q cord presser O Attach cord guide plate asm and tighten and 1 setscrew O Connect cord guide plate and cord Loosen nuts to adjust motor tension O Belt tension the belt should sag 3 to 4 mm when center of belt is applied with 1 96N load 2 Handwheel and clutch Preparation O Remove belt cover O Remove arm cover 4 Groove of handwheel Convex of handwheel bushing Q Motor pulley Handwheel setscrew Groove of 2 Handwheel handwheel bushing j Hook portion of clutch spring X When removing motor Angle portion of clutch spring pulley remove cord guide plate setscrews 1 Groove of clutch spring support IN previous Item Handwheel bushing stopper pin Disassembly Assembly Remove setscrew Attach and enter Align convex of bushing with o Remove cord guide plate set o Enter groove of bushing to groove of handwheel and at screw and remove cord guide stopper pin and attach bushing tach handwheel Then tighten plate asm Enter hook portion of spring setscrew o Remove spring support to slit in the center of handwheel o Clearance provide
24. d between con o Move in the direction where bushing vex of amp clutch spring support clutch spring is released and re o Enter clutch spring to and clutch plate is 2 x 0 5 mm move clutch spring groove of spring support and at See item 12 on page 19 for ad Face to motor side and is tach cord guide plate asm Then justment hard to drop tighten setscrew Draw out and remove 3 Thread tensioner asm Thread take O D Thread tensioner asm 3 jT Thread tension disk presser Thread take up spring adjusting plate D Thread tensioner setscrew adjusting plate setscrew SM8040602TP SL5030801SN Disassembly Assembly Remove setscrew Attach Q adjusting plate and amp o Place upward the scale of O Lower presser foot and remove Q spring to thread tensioner asm thread tension disk presser setscrew and attach it to frame Then fix it O See items 9 and 10 on page 19 Remove spring together with with setscrew for adjustment of pressure and thread tensioner asm and ad o Tighten adjusting plate set thread take up spring of stroke justing plate Screw 4 Presser bar Preparation Remove arm cover asm O Remove face plate mas asm O Remove presser foot and setscrew Presser spring regulator Threader support plate setscrew upper SL5040631SE Presser spring Indicating needle of presser spring regulator
25. e make link arm fixing plate Setscrew plate come in contact with link arm support plate pin and fix it with setscrew roller arm fixing plate Moving knife Link arm Roller holding cam Link arm support plate pin O Adjustment of position of nut of wire setscrew Refer to item 5 of adjustment of thread tension disk open close p 27 O After adjustment of position of looper tighten looper link setscrew Refer to item 4 p 27 27 mm 4 Position and protruding amount of looper Left right position and moving amount 4 1 Adjustment of left right position of looper O Adjust with looper mas asm so that center of inner hook is aligned with center of lopper Looper mas asm Looper and inner hook L 22222222 i HU UU LI k Looper Convex that looper cam pushes out Looper cam Position where it comes in contact with looper 4 2 Adjustment of moving amount of looper VT SN O When thread trimmer solenoid is ON top end of looper comes contact with bobbin case Le A A O Adjust clearance between convex of looper 09 9426 9 D and looper cam to 1 0 2 mm Loosen looper E EC link setscrew to adjust clearance 4 0 i Ca Looper link setscrew 4 3 Installing position of looper stopper plate Adjust installing position of stopper so that clear ance between looper and looper installing base is
26. etscrew asm thread guide 19 11 Adjustment of bobbin thread tension How to adjust Adjust with adjusting screw so that bobbin thread tension when spun thread 60 is used becomes 0 176 0 02 Bobbin case Adjusting screw Bobbin thread 12 Position of bobbin winder clutch O Remove belt cover How to adjust 1 Bobbin winder OFF state Turn thread trimmer clutch plate link collar and adjust so that a clearance of 2 0 5 mm is provided be tween bobbin winder clutch plate and clutch plate spring support and temporarily tighten setscrew 2 Bobbin winder ON state Make sure that bobbin winder clutch plate comes in contact with inner ring of clutch plate spring support and securely tighten thread trimmer clutch plate link collar setscrew Bobbin winder OFF Bobbin winder ON Link collar setscrew Bobbin winder shaft base adjusting plate Thread trimmer clutch plate link collar Clutch plate spring support Bobbin winder clutch plate To come in contact with each other 20 13 Adjustment of bobbin winder Position of disengaging bobbin winder How to adjust 1 Set bobbin presser to the position where it is 16 mm away from bobbin winding shaft 2 Tighten bobbin winder controller asm with setscrew when concave portion of bobbin winding shaft base adjusting plate is engaged with convex portion of bobbin winder controller asm Bobbin winder controller asm
27. finger moving knife link A from below A Moving knife roller arm Moving knife arm T ca Oc EN Thread trimmer solenoid T ES Vh 2 lt p FSD Dy s ar zl 12 d 2 ae lin Eccentric shaft setscrew mas asm setscrew SM5040655SN Disassembly Assembly O Attach thread trimmer solenoid and temporarily tighten it with setscrews O Adjust clearance between pin at top end of thread trimmer auxil iary link and thread trimmer aux cam to 0 5 to 1 0 mm and securely tighten setscrews O Fix thread trimmer solenoid link A with eccentric shaft washer and E ring See item 2 on page 23 and item 3 5 on page 24 for the adjustment d O Move thread trimmer solenoid asm to the left and right so that pin at top end of thread trimmer auxiliary link comes in contact with thread trimmer auxiliary cam when the solenoid performs suction and securely tighten set screws Solenoid has to properly work when the solenoid performs suc tion 4 PRINTED CIRCUIT BOARD DIAGRAM CONNECTOR LAYOUT AC120V Plug socket 2 VR for speed limiting Thread trimmer solenoid 7 3 2 CN4 5 Thread trimmer CN11 MAIN l FILTER SW circuit board circuit board circuit board CN1 CN6 CN7 MAIN circuit board 2 MAIN circuit board Description r Cord color Description x Cord color Termi
28. ing cam come in contact with thread trimmer auxiliary cam and tighten it with setscrew Thread trimmer auxiliary link Thread trimmer auxiliary cam Q Thread trimmer cam Setscrew No 1 Setscrew No 2 Q Thread trimmer cam contactor shaft Link support plate UM Roller holding cam Convex portion 3 4 Securely tighten setscrews in respective cams 3 5 Adjustment of eccentric shaft of thread trimmer solenoid link A Fix thread trimmer solenoid link A with thread trimmer clutch plate collar thread trimmer clutch plate collar setscrew thread trimmer auxiliary link washer and thread trimmer auxiliary link stopper E ring Q Thread trimmer auxiliary link Thread trimmer auxiliary link washer A31099DC000 Thread trimmer auxiliary link asm A2464D250A0 stopper E ring RE0400000K0 Thread trimmer clutch plate collar A2435033000 p NE SN ON Thread trimmer clutch plate collar setscrew Looper link arm asm A1727D250A0A Thread trimmer solenoid link A DA 3 6 Adjustment of thread trimmer clutch plate collar After assembling thread trimmer solenoid link A perform adjustment of eccentricity with thread trimmer clutch plate collar adjustment of clearance between roller holding cam and link arm support plate and ad just clearance to 1 to 3 mm Roller holding cam Link arm support plate 21 d we Thread trimmer clutch plate collar d RN Z
29. le assembling DF o Remove DF adjusting arm adjusting arm asm spring while removing DF ad o Place E ring to drop feed justing arm asm knob O Assemble drop feed knob shaft with setscrew i Looper mas asm Automatic Thread Trimming Components Mi Looper link asm Nui roo JE Eee 9 NO Dr Preparation ll S O Remove bed cover Looper Looper link holding shaft q knife Looper link B Bobbin case Washer A1731090000 arm spring E ring E 3 Center of inner hook E ring E 3 Disassembly Assembly Remove E ring Attach looper mas asm and o Place looper in the center Remove E ring and washer of Q tighten setscrews Adjust of inner hook and securely tighten o Remove looper link asm of amp looper link B shaft to hole o Remove moving knife arm spring Hook moving knife arm spring X See item 4 2 on page 27 for of O O Set looper link and attach E ring adjustment of looper moving Remove setscrews of and washer etc amount move looper mas asm 2 Moving knife arm installing plate mas asm Preparation Looper ou all at mas asm Nut 9 mm of wire oving knife arm installing plate S Ole Dee CONAN setscrew mas asm set screw SM4050855SP O Remove looper mas asm Zam a 1 Tad B
30. le bar bushing 67 0 0 1 mm Top surface of throat plate Lower dead point of needle bar Attach length gauge needle of 14 needle to needle bar and adjust dimension from tip of needle to install ing plane of throat plate on frame to 17 8 0 1 mm Perform adjustment with needle bar connection setscrew Position of standard Upper engraved line on needle bar aligns with bottom end of needle bar bushing when nee dle bar is at lower dead point c ian Needle bar dide b c gt setscrew Installing plane of throat plate on frame 17 8 0 1 i 3 Height of presser foot Adjust the height in the state that hand lifter lever is raised Presser foot Clearance provided between top surface of throat plate and lower face of presser foot is 7 0 0 5 A mm Perform adjustment with pr r bar connection erform adjustment with presser bar connectio Throat plate 7 0 0 5 mm Ed 4 Height of feed dog O Set stitch dial to 2 and bring feed dog to its high est position O See the height on the rear side of feed dog Bottom of tooth of feed dog should be aligned with top surface of throat plate Figure on the right side protruding amount from top surface of throat plate is 1 2 0 1 mm Perform adjustment with vertical feed shaft arm 5 Feed timing O O O O Set stitch dial to P 2 Top surface of throat plate X i 1 2 0 1
31. m Feed regulating screw Feed regulating screw Stopper screw Stopper nut Feed regulating Feed regulating screw pin stopper asm setscrew Stitch dial setscrew SM8030402TP Disassembly Assembly Loosen two setscrews and re Turn regulating screw full to o There should be no play in feed move the dial the right regulator when operating lever O Be careful since pin jumps O Assemble stitch dial with its scale When scale is O O may not be removed 0 up tighten screw 2 o Loosen stopper nut Make Stopper screw SM8031400TP pcs stopper screw strike against regu lating screw and tighten nut 10 Thread trimming switch case Preparation Remove arm cover asm O Remove motor cover and belt cover O Remove motor mas asm Q Thread trimming switch circuit board case setscrew SL4040655SN Disassembly Assembly Remove two setscrews in Attach the switch case to frame O There should not be no torsion thread trimming switch case and tighten with setscrews between switch and frame Remove thread trimming switch case 11 Wire holder LJ Wire tube presser setscrew Preparation SM4040655SN O Remove outer components xz Nut of setscrew f opposite side 9 mm Excluding belt cover and motor cover NS6620310SP Remove presser bar FS Wire holder setscrew ST Ai M 7 SM50408
32. nal Terminal deli ma M solenoid Blue ow N Yellow Black Yellow Yellow Red Transformer C secondary side AC 22V 19 8V Power connecting 9 Blue wire Brown VR for speed limiting CN10 mE Red N8 FILTER circuit board ned Description Cord color Terminal Transformer Primary CN21 Babbin winder ow side AC 120V 2 Blue Power connecting CN22 1 Brown wire 2 Blue Power input CN23 1 Blue AC 120V 2 Yellow n Thread trimmer SW circuit board Description gt Cord color External thread CN11 1 Black trimmer socket 2 Brown Caution 1 CN Nos in frame of MAIN circuit board denote connector Nos in MAIN circuit board 2 Portions enclosed with thick lines denote circuit boards 3 Numerals outside of frame of MAIN circuit board denote number of lead wires MAIN circuit board i 3 O 2 N m lt lt lt MP detection circuit board Thread trimmer SW circuit board Z Z O9 O 4 B 2 4 10 CN6 O eel 22 2 2 CN3 CN5 415 5 ADJUSTMENT OF COMPONENTS Caution Convex portion of connectors CN7 CN8 and CN9 should be placed up Connector insertion diagram Convex portion FILTER circuit board General mechanism O ON Oa WN 10 11 12 13 14 19 Height of neddle bar bushing Height of needle bar Height of presser fo
33. o Remove throat plate asm Feed dog setscrew A Moving knife base mas asm SM4040855SP Se emm lt ceu amm MS Q Moving knife link shaft A E ring Disassembly Assembly o Remove E ring and raise o Attach moving knife base to frame When assembling it is better to frame Remove two setscrews O Bring amp feed dog to its highest position Raising moving knfe base by hand lightly press moving knife link A from upper side Release coupling 4 Thread trimmer solenoid mas asm Preparation O Remove outer components Remove arm cover asm belt cover motor cover and cord guide O Remove solenoid cover Remove washer E ring and eccentric shaft of thread trimmer solenoid link A Remove washer E ring eccentric shaft and setscrews of thread trimmer solenoid link A Remove thread trimmer sole noid link A Remowve three setscrews in thread trimmer solenoid asm to take it Out t is easy to remove setscrews when top end of thread trimmer auxiliary link is moved to the right hand side of thread trimmer auxil lary cam while setting moving knife base to moving knife link shaft A Temporarily tighten setscrews O Push moving knife base in the direction of right rear 45 and se curely tighten it O Tilt frame set moving knife link shaft A and enter E ring Thread trimmer solenoid link Washer and E ring raise by
34. of needle bar crank with O Draw out thread take up sup and tighten setscrews 2 pcs screw No 1 porting shaft Set to enter thread take up o Press shaft to frame side while o Remove and Q together with supporting shaft amp to attach viewing the torque and tighten 0 needle bar crank it onto frame and tighten set setscrew 7 Reverse feed stitch lever Preparation Remove belt cover Q Feed regulator LESE 4 ys N c Reverse feed 7 ll Reverse feed H stitch lever arm stitch lever sprin F pring foy Reverse feed stitch Reverse feed stitch lever lever mas asm setscrew SM5040855SN Disassembly Assembly Remove spring from arm Attach lever and set with o Set lever arm to the slot of Remove two setscrews setscrews regulator o Remove lever arm from the Hook lever spring to lever arm slot of regulator when remov ing 8 Idler ES Convex portion of idler installing plate P ti zs uM belt cover E MN T ISS Idler setscrew SM5040855SN Disassembly Assembly Remove setscrew and remove Assemble idler and tighten it with Belt tension can be changed only idler asm setscrew by removing belt cover Move O Belt tension Belt sags 6 to 7 mm convex portion to the left or right when center of the belt is applied with a 1 96N load 9 Stitch dial Preparation O Remove arm cover as
35. ot Height of feed dog Feed timing Needle to hook timing Clearance between needle and hook Position of bobbin case positioning finger otroke of thread take up spring absorbing amount of thread Tension of thread take up spring Bobbin thread tension Position of bobbin winder clutch Adjustment of bobbin winder Position of threader support plate mas asm Vertical position of threader hook Automatic thread trimmer mechanism 17 17 17 18 18 18 18 19 19 19 20 20 21 22 22 do 1 Positioning of moving knife arm installing plate adjustment of position of moving knife 23 Installing position of thread trimmer solenoid moving amount of thread trimmer cam Contactor STD 23 Thread trimmer cam timing needle to cam position 24 Position and protruding amount of looper left right position and adjustment of movement Position of nut of wire setscrew adjustment of thread tension disk open close General Mechanism 1 Height of needle bar bushing O 2 Height of needle bar O O Set dimension from top surface of throat plate to lower end face of needle bar bushing to 67 0 0 1mm bushing driving fit Lower end face of need
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