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        Singer ST-1 User's Manual
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1.                     See ED  A    JOD  7 ji VA   bez      e          Compressed   ir Components    Ref  No     on C   O1  B C              we      oe                af      05      69      65 65 MM                P5                65           ND            Part No   VUTA0401  VMD06401010A  VUTA0403  VMA08500613A  VUTA0405  VMCO6402314E  VMA06400510B  VUTA0408  VUTA0409  VMM04283007B  VMD03203006D  VUTA0412  VUTA0413  VUTAQ414  VUTAQ415  VUTAO416  VUTA0417  VUTA0418  vMD03201306D  VUTA0420  VMC04280608A  VUTA0422  VUTA0423  VMD06401410A  VMD05321409A       VUTA0426    VMCO6401210E  VUTA0428  VUTA0429  VMA06400510A  VUTA0431  VUTAO432  VUTA0433  VUTA0434  VMCO4281107A  VUTA0436  VUTA0437  VUTA0438  VUTA0439  VUTA0440  VMA04280307A        04281407    VUTA0443  VMC04280810A        04280307    VUTA0446    Description Q  ty       1  Screw  is s g   ina kd 2  Cylinder Ran See      Ha          e PAQ           ne me 1  Nyt                     1  Speed Controller        2  Stud      SSR me A 1  Nut                                                              1  Electromagnetic Valve Base             lt                      1  Electromagnetic Valve                                       2  Riel  gt   Mrs ne        ca                          dd        2  Screw  gt  gt  gt  aaa 4  Connector        ee eee nek ente syen car toti rate tense sss 2  Connector   eke ess kone se es ko SS SES ais ANA            2  Elbow Connector                       lt                        2  Elbow  Connector
2.            lt  lt  lt         lt  lt        lt          l       Thread Tension and Motor Components           Ref  No  Part No  Description Q ty  1 VUTA0501 Thread Guide Eyelet                                         1  b    mente Thread Tension Spring Assembly Set  See List Below        1  3 VUTA0503 Spacer TA 2  4 VMM04281407A Screw                                            lt             2  5 VUTA0505 Thread Guide Hook Unit                                     5  6 VUTA0506 E ring  gt           lt  lt  lt                    2  5              2   1  7 VUTA0507 Spring        1  8 VUTA0508 Tension Release Shaft                                       1  9 VUTA0509 Pin        1   10 VUTA0510 Spring                                                       1  11 VUTA0511 Guide Bar                                                    1  12 VUTA0512 Dust Cover 1 0 1  13 VUTA0513 Guide       lt                lt     lt     lt   lt      lt  lt          lt  lt                1  14 VUTAO514 Cloth Plate  gt              lt        lt  lt    lt  lt 5                      1  15 VUTA0515 AC Servo Motor                           lt  lt 5  lt    lt 5  lt 5 lt 5  5  lt       1  16 VUTA0516 Power Cord ii 1  17 VUTAOS17 Electromagnetic Valve Cord                 5555755 555555     1  18 VUTA0518 Synchronizer                    lt                   5           1  19 VUTA0519 Stopper              lt        lt                                  1  20 VMCO4281007A Screw                                      
3.      3  TENSION RELEASE EQUIPMENT    EACH OF SET SCREWS FOR THE TOP  THREE THREAD GUIDE HOOK UNITS IS  SETTING IN THE MIDDLE OF TWO THREAD  GUIDE EYELETS AND EACH OF SET  SCREWS FOR THE BOTTOM TWO THREAD  GUIDE HOOK UNITS IS SETTING IN THE  DISTANCE OF 10m m  APART FROM THE  THREAD GUIDE EYELET        THE RELEASE WEDGE MUST REACT  EARLIER THAN THE THREAD TRIMMER S  OPERATION  WHEN ADJUSTING  LOOSENING  THE SET SCREW  SETTING THE PROPER  POSITION OF RELEASE WEDGE  IN THE  MEANTIME  PLEASE MAKE SURE THE  RELEASE WEDGE CAN PUSH TENSION  DISC COMPLETE APART AND ALSO CAN  RETREAT COMPELELY   CAN NOT  INTERFERENCE WITH TENSION DISC         4  ADJUSTMENT FOR SPREADER TRIMMER  4 1 THE EXPLANATION FOR TRIMMING OPERATION     WHEN NEEDLE MOVED TO ITS UPPERMOST  DEAD POINT  MOVABLE KNIFE  A  PASSING  THROUGH THE NEEDLES AND THE LOOP  OF SPREADER THREAD  CAN NOT  INTERFERENCE WITH EACH OTHER    WHEN THE TIP OF MOVABLE KNIFE   MOVED TO THE HALF DISTANCE   BETWEEN SPREADER AND PRESSER   FOOT AND START RETREATING BV THIS  MOMENT THE HOOK BLADE OF MOVABLE  KNIFE IS PULLING THE ORNAMENTAL  THREAD BACK TILL THE FIXED KNIFE CUT  THE ORNAMENTAL THREAD AND THE  THREAD CLMAP SPRING IS HOLDING THE  ORNAMENTAL THREAD END     4 2 MAINTENANCE AND ADJUSTMENT    WHEN MOVABLE KNIFE PASSING THOUGH  THE NEEDLES AND SPREADER  THE  INTERVAL BETWEEN MOVABLE KNIFE  AND SPREADER SHOULD      0 1  0 3 m m   LOOSEN THE SET SCREW AND ADJUST  THE SPREADER TRIMMER SET TO ITS  PROPER POSITION AND THEN TIGHTEN  THE SET 
4.      lt              1  21 VUTAQS21 Regulator                                45 lt        5 5       1  2  Thread Tension Spring Assembly Set          7550300 VCTA030620         7560200 VCTA030630  756U300 VCTA030640            3  JE       
5.   Jesika eee oi ey ASE SSR                 1  Washer        lt   2 lt                   4  1721 4 425  22 24 42        4  Washer 0 2  Safety Switch                           lt                      1  Screw     sister a risi risi 2  Safety Switch Bracket                                       1  Screw      AREA 2  Cylinder Holder Bracket              lt  lt   lt                     1  Connecting Lever        lt      lt   lt      lt  lt  lt  lt  lt  lt       lt              1  Score                     aoe tea SES ASE SEES SAGE 2  Screw        4  Cylinder Holder          css 1  Sepey is ien A l  Speed Controller                    lt  lt  lt  lt  lt        55            2  Cylinder                               5   lt                  1  Nut    1  Bearing      lt 5     lt  5 lt  lt   5 lt       lt    55  45 5   5 2  5  552     1  Joint      1  Pin            lt   lt                                                 1  Connecting Arm            lt       lt     lt   lt  lt        lt               1  Screw  lt  5  lt   lt         3  4  4    lt    5                     oi aa 2               i iet    re ak  1  Pin              lt                                             1  Washer          lt        lt                             2            2  Speed Controller        2  Cylinder eee 1  Nut      1  Screw L 1  Joint AA vin eta re on hee sesh sess eee DE ces 1  Screw morc tr rrr rrr rrr rrr rr rrr stern res i  Nat  isti skai kai pi n ae      ka              1  Tension Release Lever  
6.   SPRING       ADJUSTING SCREW IS USED FOR SETTING FIXED KNIFE  THE TENSION OF CLAMP SPRING IN ORDER           HOLD THE ORNAMENTAL THREAD  PROPERLV  IF THE TENSION BETWEEN  THREAD CLAMP SPRING AND MOVABLE  KNIFE IS TOO BIG  THEN MOVE THE KNIFE  PRESSURE SPRING FORWARD IN ORDER    KNIFE  SPRING    MOVABLE KNIFE    TO GET PROPER TENSION  SET SCREW  CLAMP    SPRING       5 1 UT 1 UNDERBED TRIMMER COMPONENTS       UT 1 Pneumatic Underbed Trimmer Components    Ref  No     on Oo                                                          BO      N        m je      jen p   m  O    Oo             WN            Oo                      di         gt        9    Part No    VUTA0201  VUTA0202  VME04280608C  VUTA0204  VUTA0205        03241006    VME03240506A  VUTA0208  VSB24560204A  VUTA0210  VSB24560505A  VSB24560905A  VUTA0213  VUTA0214  VUTA0215  VUTA0216  VUTA0217  VSB24560405A  VUTA0219  VUTA0220  VUTA0221  VMBO4280608A  VUTA0223  VUTA0224  VUTA0225  VUTA0226  VUTA0227        04280608    VUTA0229  VMB05320710E       Description Q  ty  Lower Knife Holder                                         1  Oscillating Center Ring                                     1                                       1  Lower Knife Carrier                                         1  Knife Guide Ring            7 2  Sea i ER A A RE RE        1  Sor  gt  gt  yan ol aki ao    Ga ie        SEER 1  Lower Movable Knife                                         1  Son a Ea ia e it ad 2  Lower Fixed Knife  gt  gt  gt  ra
7. BLADE OF FIXED KNIFE     1        HOOK BLADE  MOVABLE  KNIFE       THE RELATIONSHIP AMONG CLAMP SPRING   KNIFE PRESSURE SPRING AND CLAMP  SPRING PRESSURE ADJUSTING PIECE     WHEN THE HOOK BLADE OF MOVABLE  KNIFE A RETREATED 1mm INSIDE FROM  THE BALDE OF FIXED KNIFE B  THE  FRONT EDGE OF CLAMP SPRING C  SHOULD MATCH EVEN WITH THE TOP  OF MOVABLE KNIFE  SIDE EDGE   OF MOVABLE KNIFE AND CLAMP SPRING  ALSO SHOULD MATCH EVENLY           FIXED KNIFE W  1MM    WHEN LOOPER THREAD BEEN CUT    THE CLAMP SPRING SHOULD HOLD   THE LOOPER THREAD AND MOVING   AWAV TOGETHER WITH KNIFE BASE  FROM THE LOOPER AND THE PRESSURE  OF CLAMP SPRING CAN BE ADJUSTED   BV ADJUSTING THE CLAMP SPRING  PRESSURE ADJUSTING PIECE AND PLEASE  REFER TO NEXT ITEM         PRESSURE SPRI    2 2 SETTING THE HEIGHT OF THE LOWER FIXED KNIFE  CARRIER GUIDE    WHEN LOWER MOVABLE KNIFE MOVE  FORWARD FROM LOWER KNIFE HOLDER   THE INTERNAL BETWEEN MOVABLE KNIFE MOVABLE KNIFE  AND THE RIDGE OF LOOPER SHOULD            0 1   0 3 m m     0 01 100        INTERVAL    LOOSENING THE SET SCREW A AND ADJUSTING  THE HEIGHT  OF LOWER FIXED KNIFE CARRIER  GUIDE TO ITS PROPER POSITION THEN TIGHTEN  THE SET SCREW A    PLEASE MAKE SURE THE LOWER MOVABLE  KNIFE CAN BE MOVED FORWARD AND  BACKWARD SMOOTHLY        2 3 SETTING THE POSITION OF THREAD TRIMMER    WHEN THE PISTON OF  KNIFE DRIVING  CVLINDER REACH ITS LEFTEST DEAD  POINT AND TRIMMING KNIFE SET WILL  MOVE TO THE SIDE OF THE LOOPER   THERE WILL BE A 2m m  INTERVAL  BETWEEN THE TRIMM
8. CE MORE TO MAKE SURE THESE  TWO SET  MARKS ARE MATCHING EVENLY       4 3 ELECTRICITY AND CONNECTION Ur IIS ruwen vri mr  CYCLE        GENERAL CONNECTION DIAGRAM OF AC SERVE MOTER     lt     1  RED 1  RED TS  2  DEEP BLUE    2  BLACK    SPREADER TRIMMER 9 3  RED         3  WHITE  k  UNDER BED TRIMMER LO 4  BLACK 4  GRAY    e 5  BLACK 5  ORANGE e  PRESSER FORT  gt  er b    7  BLACK 7  VELLOW  SAF TY SITE     8  YELLOW 8  BLACK    2  MAINTENANCE AND ADJUSTMENT    2 1 LOWER MOVABLE KNIFE AND FIXED KNIFE    IF VOU ARE RESHARPING THE KNIVES  OR CHANGING THE KNIVES  OR  INCASE  TAKING OFF THE TRIMMING KNIFE SET IF NECESSARV AND  VOU WANT TO RE INSTALL THE TRIMMING KNIFE SET BACK  PLEASE  REFER TO FOLLOWING ITEMS AND ADJUSTING THE RELATED PARTS    INVOLVED       PLEASE MAKE SURE THE POWER IS  OFF     LOOSENING THE COMPRESSED AIR JOINT  AND ADJUSTING THE POSITION OF   LOWER MOVABLE KNIFE IN ORDER MOVABLE   TO MAKE THE MOVABLE KNIFE CAN KNIFE GUIDE  BE SLIDED EASILY IN THE LOWER  MOVABLE KNIFE GUIDE AND CAN NOT  INTERFERENCE WITH THE KNIFE GUIDE     WHEN MOVABLE KNIFE MOVED TO ITS  LEFTEST DEAD POINT THERE SHOULD  HAVE A INTERVAL OF 1m m  BETWEEN  SET SCREW A AND FIXED KNIFE AND  CAN NOT COLLIDE WITH EACH OTHER   YOU CAN ADJUST THE INTERNAL BY  LOOSEN THE SET SCREW B AND MAKE  SURE THE EDGE OF MOVABLE KNIFE  MATCH EVENLY WITH THE EDGE OF  FIXED KNIFE        WHEN MOVABLE KNIFE MOVED TO ITS  RIGHTEST DEAD POINT  THE HOOK  BALDE OF MOVABLE KNIFE SHOULD  BE RETREAT 1m m  INSIDE FROM   THE 
9. ING KNIFE SET  AND THE LOOPER    LOOSEN THE SET SCREW NUT  A    TURNING THE PISTON CLOCKWISE  TO REDUCE THE INTERVAL OR  COUNTER CLOCKWISE TO INCREASE  THE INTERVAL  TO ADJUST THE  TRIMMING KNIFE SET TO ITS PROPER  POSITION AND THEN TIGHTEN THE  SET SCREW NUT    TURNING THE HANDWHEEL AND MAKE  SURE THE  P  SET MARK MATCH THE  SET MARK FROM THE MACHINE HEAD   USING HAND TO MOVE THE PISTON  OF THE KNIFE DRIVING CVLINDER IN  ORDER TO MOVE THE TRIMMING KNIFE  SET TO THE LOOPER    KEEP PUSHING THE PISTON OF KNIFE  DRIVING CVLINDER  THEN THE MOVABLE  KNIFE START TO MOVE FORWARD     WHEN THE MOVABLE KNIFE MOVE TO  15m m  FROM THE LEFT EDGE OF FEED  DOG S RIGHT COLUMN    THE TIP OF THE MOVABLE KNIFE SHOULD  LOCATED ON THE TOP OF THE CENTER  LINE OF LOOPER S RIDGE     H                      es    VABLN         FEED DOG    WHEN MOVABLE KNIFE KEEP MOVING TO   THE LEFT TILL 1 5mm AWAY FROM THE   RIGHT SIDE OF FEED DOG S LEFT COLUMN   THE TIP OF THE MOVABLE KNIFE SHOULD   STILL STAV WITHIN THE RIDGE OF THE LOOPER     LOOPER    MOVABLE  KNIFE  TIP    WHEN ADJUSTING  LOOSENING THE SET SCREW  A   AND TURNING THE ECCENTRIC STUD AND SETTING  THE POSITION OF THE TIP OF MOVABLE KNIFE   THE SET MARK OF THE ECCENTRIC STUD MUST  FACING TOWARD THE RIGHT SIDE    SET MARK    2 4 DOUBLE CHECKING    AFTER ASSEMBLED THE THREAD TRIMMING SET  PRIOR TO THE  SEWING OPERATION  YOU MUST DOUBLE CHECK THE CORRELATION OF  NEEDLE THREAD  LOOPER THREAD  LOWER MOVABLE KNIFE AND  LOOPER  AND ALSO DOUBLE CHECK  F THE 
10. Instruction Manual    Singer    UT 1 Device  ST 1 Device    for    755U Machine  756U Machine    INSTRUCTION MANUAL     DRAFT     SINGERO    UT I ST I DEVICE  FOR  755U 756U MACHINE     BA registered trademark of The Singer Company Limited  Copyright O1997 The Singer Company Limited  All Rights Reserved Throughout The World    CONTENTS       PAGE  L  Application  A ET          2  1 1 Threading and testing ea S 2  1 2 Installment and adjustment of the synchronizer                                     3  1 3 Electricity and connection of its power control cycle                            4  2  Maintenance and adjustment                                             52    2  2222     5  2 1 Lower moval knife and fixed knife  gt                                                 5  2 2 Setting the height of the lower fixed knife carrier guide     lt      lt               6  2 3 Setting the position of thread trimmer                                             7  2 4 Double checking 595557999  ee ee nme rens 8  3  Tension release equipment            lt  lt  lt  lt  lt         lt  lt 5 lt 5                   2             em    Er 9  4  Adjustment for spreader trimmer              lt         lt              555 55 55 552552252   10  4 1 The explanation for trimming operation             lt  lt  lt        lt     lt  lt          5 5       10  4 2 Maintenance and adjustment      nn anes en 00010000074 10    Tlhmtrated parts list        eee cena ES PS ES irse      12  5 1 UT 1 Underbed trim
11. NEEDLE THREADS  FIRST THEN CUT THE SPREADER THREAD NEXT  AND PRESSER FOOT LIFT UP AUTOMATICALLY     4  TAKE OFF THE SEWING FABRICS AND PREPARE FOR THE NEXT  SEWING OPERATION     5 BEFORE YOU PUSH THE PEDAL FORWARD  YOU CAN PUSH THE  PEDAL BACKWARD AND LIFT UP THE PRESSER FOOT IN ORDER  TO ADJUST THE FABRICS POSITION AT ANY TIME     1 2 INSTALLMENT AND ADJUSTMENT OF THE SYNCHRONIZER         HANDWHEEL    1  INSTALL SYNCHRONIZER  INTO BELT PULLEY  3 AND TIGHTEN THE  SET SCREW 2 LIGHTLY     2  INSERT ONE END OF STOPPER   INTO THE HOLE ON THE MACHINE  AND INSERT THE  OTHER END OF STOPPER INTO THE GROOVE OF  SYNCHRONIZER AND THEN TIGHTEN THE SET SCREWG     3  CONNECT THE POWER OF MOTOR   PLEASE DO NOT CONNECT THE  ELECTRIC POWER OF TRIMMING KNIFE YET     4  PUSH THE PEDAL AND START THE SEWING MACHINE AND THEN  PUSH THE PEDAL BACKWARD TO STOP THE MACHINE  BY THIS  TIME  THE SEWING MACHINE WILL STOP AT CERTAIN POSITION  AUTOMATICALLY     5  OBSERVE THE  P  SET MARK FROM HANDWHEEL AND WHEN THE  MACHINE STOPPED  THE  P  SET MARK FROM HANDWHEEL SHOULD  MATCH THE SET MARK ON THE SEWING MACHINE AND AT THIS  MOMENT  THE NEEDLE SHOULD REACH ITS UPPERMOST DEAD POINT      WHILE ADJUSTING  LOOSEN THE SET SCREW 2 TURNING THE BELT  PULLEY  3  THEN TIGHTEN THE SET SCREW LIGHTLY  REPEAT SUCH  PRECEDURE SEVERAL TIMES TO MAKE SURE THE  P  SET MARK  FROM HANDWHEEL CAN MATCH EVEN WITH THE SET MARK OF THE    MACHINE BODY     6  AFTER TIGHTEN THE SET SCREW    PLEASE DOUBLE CHECK THE  RELATED POSITION ON
12. SCREW     WHEN MOVEABLE KNIFE MOVE FORWARD  AND MEET WITH SPREADER  THE        OF    HOOK BLADE SHOULD SQUARE MATCH TO  THE THREAD HOOK OF SPREADER    LOOSEN THE SET SCREW  ADJUST THE  HOOK BLADE OF MOVABLE KNIFE TO ITS  PROPER POSITION  AND LINE UP WITH  THREAD HOOK OF SPREADER THEN  TIGHTEN  THE  SET SCREW        ADJUSTING SCRE  HREAD    WHEN MOVABLE KNIFE MOVE FORWARD  TO ITS LOWEST DEAD POINT  THE TIP OF  THE MOVABLE KNIFE SHOULD LOCATE  AT THE HALF DISTANCE BETWEEN  SPREADER AND PRESSER  FOOT  LOOSEN  THE NUT OF CVLINDER  ADJUST THE  PISTON TO ITS PROPER POSITION THEN  TIGHTEN THE NUT        WHEN RE SHARPENING THE KNIVES  OR SLIDE  CHANGING THE KNIVES OR TAKING OFF LOCK  THE SPREADER TRIMMER SET IF  NECESSARV  PLEASE ASSEMBLE BACK  THE SPREADER TRIMMER ACCORDING  TO FOLLOWING ITEMS    MOVABLE KNIFE SHOULD SLIDE SMOOTHLV MOVABL  IN THE SLIDE BLOCK AND CAN NOT HAVE KNIFE  ANY INTERVAL BETWEEN MOVABLE KNIFE  AND SLIDE BLOCK     FIXED KNIFE HOLDER    MATCH  THE SIDE EDGE OF FIXED KNIFE SHOULD EVENLY    MATCH EVENLY WITH FIXED KNIFE HOLDER     FIXED KNIFE          MOVABLE KNIFE       WHEN MOVABLE KNIFE MOVE BACKWARD   THE HOOK BLADE OF MOVABLE KNIFE  SHOULD RETREAT 0 5m m  INSIDE FROM  THE BLADE OF FIXED KNIFE         FIXED  KNIFE NA        0 5  INTERVAL       WHEN MOVABLE KNIFE MOVE TO ITS UPPERMOST    DEAD POINT  THE FRONT EDGE OF THREAD  CLAMP SPRING AND MOVABLE KNIFE SHOULD    BE EVEN  AND  THE FRONT EDGE OF KNIFE  PRESSURE SPRING AND FIXED KNIFE SHOULD  BE EVEN     CLAMP
13. THREAD TRIMMER CAN  TRIM THE THREADS PROPERLY AND IF CLAMP SPRING CAN HOLD THE    LOOPER THREAD PROPERLY        WHEN MOVABLE KNIFE  A  MOVE FROM  RIGHT TO THE LEFT  IT MUST PASSING  THROUGH THE LOOP OF THE NEEDLE  THREADS  U   U   IN THE SAME TIME   THE POSITION OF HOOK BLAD  a  MUST  BE IN THE FRONT OF LOOPER THREAD     WHEN MOVABLE KNIFE  A  RETREAT FROM  ITS LEFTEST DEAD POINT TO THE RIGHT   HOOK    BLADE  a  AND  a JWILL PULL THE  NEEDLE THREAD AND  LOOPER THREAD TO  THE FIXED KNIFE AND  CUT THE THREADS   IN ORDER AND THE CLAMP SPRING WILL  HOLD THE THREAD END AND MOVE TO THE  BACK OF LOOPER TOGETHER WITH TRIMMING  KNIFE SET  A   YOU CAN ADJUST THE HOLDING  PRESSURE OF CLAMP SPRING TO AVOID THE  THREAD END CAME OFF DURING THE  MOVEMENT BV ADJUST CLAMP SPRING  PRESSURE ADJUSTING PIECE        THE TRIMMING ABILITY OF KNIFE MUST  BE MODERATE OR THE KNIFE WILL BE  WORE OUT VERV SOON  IF THE TENSION  _ OF KNIFE PRESSURE SPRING IS TOO BIG   YOU CAN ADJUST IT BY MOVING KNIFE  PRESSURE SPRING TO THE RIGHT OR  LEFT IN ORDER TO GET PROPER TENSION     DOUBLE CHECK THE POSITION OF SAFETY  SWITCH WHEN THE POWER IS ON  THE  TRIMMING KNIFE SET MUST BE IN ITS SET  POSITION    THE TRIMMING KNIFE SET CAN ONLY  FUNCTION WHEN THE KNIFE DRIVING  CYLINDER  B  PUSH AWAY SAFETY STITCH  A    WHEN ADJUSTING  LOOSENING SET SCREW  C   AND SETTING THE DESIRED POSITION FOR  SAFETY SWITCH THEN TIGHTEN SET SCREW C    AFTER TIGHTEN THE SET SCREW  C  YOU  MUST DOUBLE CHECK IF SAFETY SWITCH IS  SET PROPERLY
14. mer components  lt         lt   lt  lt   5  5  lt  lt       lt    5     55 555   25 2     12  5 2 ST 1 Spreader thread trimmer components          7 000000000000000000000000000007 14  5 3 Compressed air components        lt  lt     lt  lt         lt  lt        lt             5 5 552 2 22240  16  5 4 Thread tension and motor components         lt   55  lt 5 5   lt    lt   55 5555555555 5 555  2  18  I naermere ener 20    5 5 Air piping diagram    1  APPLICATION      1 1 THREADING AND TESTING    THE THREADING OF THIS SEWING MACHINE IS THE SAME AS CT  SERIES  PLEASE REFER TO THE USER GUIDE OF CT SERIES  INTERLOCK MACHINE        PLEASE BE AWARE THAT THE WRONG THREADING 1  THE MAIN _  REASON TO CAUSE THE SKIP STITCH PROBLEM  IF THE UTA 1  DEVICE IS NOT ASSEMBLY ON THE MACHINE BY OUR FACTORY BUT  PURCHASE SEPARATELY PLEASE ADJUST AND TEST THE MACHINE  TO REACH THE BEST SEWING EFFECTS ACCORDING TO THE  FABRICS AND  THREAD YOU ARE USING FIRST AND THEN   ASSEMBLE THE UTA 1 DEVICE AFTERWARDS     DO NOT OPERATE THE UTA   DEVICE IF THERE IS NO FABRICS  UNDER THE PRESSER FOOT        1  START THE SEWING MACHINE BY PUSHING THE PADEL  FORWARD          2  WHEN PEDAL BACK      NEUTRAL POSITION  B  THE SEWING  MACHINE STOP AND AT THIS MOMENT  VOU CAN SET THE  NEEDLE TO ITS UPPER SET STOP POSITION OR LOWER SET STOP  POSITION         3  WHEN PUSHING THE PEDAL BACKWARD     THE NEEDLE REACH  ITS UPPER SET STOP POSITION AND STOP THEN TRIMMING KNIFE  START ITS OPERATION TO CUT THE LOOPER THREAD AND  
15. nk 1  Serep    2  SOLUM s  rasere m rei a        aa a m             e          1  Lower Movable Knife Guide                lt                     1  Clamp  Spring           SS sa ON 1  Knife Pressure Spring                                       1  Clamp Spring Pressure Holder             lt  lt 5 5 5  lt          1  Clamp Spring Pressure Adjusting Piece                i da 1  i Age      al a a S 2  Crank Chamber Cover               lt                            1  Lower Fixed Knife Carrier Guide                            1  Supplementary Spring                                       1             SEERE      n iex ea enb n SS ENES              2  Spring              mA 1  Pi PO ON 1  Driving Leven  gt  1  Driving Roller    otre rose tip nia te aaa           1  Adjusting Ring    Risk se     pwen AA Re e neon        1  SCREW kk ch i a in SKE SER          1  JOU  Block free           1  Stud    1 1 i A I    974 DITI OornrAULAR innbLAD IRIMMLA VUMFURENIO  FYN  9049 MAUMLNCOJ       Spreader Thread Trimmer Components  FOR 756U MACHINES     Ref  No           3          mm                     Part             VUTA0301  VMB04280508A  VUTA0303  VUTA0304  VUTA0305  VUTA0306  VUTA0307  VUTA0308  V5B24560204A  VUTA0310  VUTA0311  VUTA0312  VUTA0313  VMD04280808D  VUTA0315  VUTA0316  VUTAQ317  VMA08400311A  VMA04280307A  VUTA0320  VUTA0321  VSB24560405A  VUTA0323  VUTA0324  VUTA0325  VMN02160300A       Description Q ty  Knife Holder Plate                                         1  Screws ca
16. se rer S AW                   B dal pe depone 6  Connecting Bracket                                         1  Knife Holder Bracket              lt        lt    lt                1  Stud                                                        2  Upper Movable Knife Base            lt         lt                1  Screw          lt   lt      lt                           lt                 1  Movable Knife      e up ei ponta ien ake SO eee 1  Screw  2772 2  Left Slide Block    neset 1  i Fixed Knife Holder                                         1  Knife Guide Bracket                lt     lt                      1  Cylinder Holder           lt  lt       lt       lt   lt    lt                   1             E                      DE DEG LC OCDE 4  Spring Washer           ana no suat Se            4  Cylinder oss se SA e 1  Speed Controller       ass 2  Nut TTT 1  Nyt     erer renn ro eter ra nor onon or oo annan nan nor    on nana nn 2  Joint                     lt  lt    lt       lt  lt  lt  lt             lt  lt   lt                1  Fixed Knife rer see                    INE 1  Screw              lt                                              4  Thread Clamp Spring                                         1  Knife Pressure Spring            lt   lt       lt  lt  lt     lt   lt  lt   lt           1  Knife Pressure Adjusting Piece                            1  Screw         lt  lt   lt            lt  lt  lt           lt          5              i           lt     KA        S   
    
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