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올바른  사용방법  /  OPERATION

7.  사조자  /  Adjusting  the  thread  tension

★  밑실의  상태는  실  끝을  잡았을  때,  보빈케이스가  저절로  흘러내리지  않을  정도로  약하게  나사①를  돌려서  조절해주십

시오.

★  윗실상태는  노루발을  내린  후,  나사②를  돌려서  위  그림과  같이  조절해주십시오.

★  사절  후  바늘  끝에  남은  실의  길이는  35~40  mm가  되도록  조절나사③을  돌려  조절해주십시오.

★  Adjust  the  bobbin  thread  tension  by  turning  the  adjusting  screw  ①  so  that  the  bobbin  case  will   not

      slip  down  of  its  own  weight  when  suspended  from  the  bobbin  threa d.

★  Lower  the  presser  foot  and  adjust  the  needle  thread  tension  by  turning  the  adjusting  screw  ②  as

      shown  in  figure  above.

★  Adjust  the  adjusting  screw  ③  so  that  the  length  of   the  needle  thread  af ter  thread  trimming  is  about 

      35  ~  40  mm.

   

ꁴ 

실잡이  스프링  (Thread  take-up  spri

ng)

    ★  실  잡이  스프링의  동작범위는  7~10mm가  표준입니다.  또  실잡이

          스프링의  강함은  25~30g가  표준입니다.

    ★  실  잡이  스프링의  작용범위를  조절하는  것은  고정나사④을  풀고,       

            윗실조절기를  돌려주십시오.

    ★  실  잡이  스프링의  강함을  바꾸는  것은  사조자봉⑤의  홈에  드라이버   

          끝을  넣고  돌려서  조절해주십시오.

    ★  The  standard  operation  range  of  the  thread  take-up  spring  is     

            about  7~10mm.  The  standard  tension  at  this  time  is  25~30g.

★  To  adjust  the  operation  range  of  the  thread  take-up  spring,      loosen  the  set  screw

④  and  turn  the  thread 

      tension

  bracket  assembly.

★  To  adjust  the  tension  of  the  thread  take-up  spring,  fit  a  screwdriver  into  the  slot,  and  turn  the  tension  stud

     

⑤  as  appropriate.

8.  땀  길이의  조절  /  Adjusting  the  stitch  length

  ★  역전핸들①을  중앙의  위치까지  누르고,  다이얼②의  숫자를  상부의  핀③에    맞추고 

        나서  역전핸들①을  놓아주십시오.

      ※  숫자가  클수록  이송량은  많게  됩니다.  최대  땀은  5mm입니다.  단  역전재봉은 

            약  3mm입니다

   

 

ꁴ 

역전장치   

역전핸들①을  누르면  천이  역  이송됩니다.  놓으면  복원해서  정  이송으로

                                      되는  자동복원식입니다.

  ★  Push  the  reverse  lever  ①  halfway  down,  turn  the  dia l  ②  until  the  desired

        number  is  aligned  with  the  pin  ③  at  the  top,  and  rel ease  the  reverse  lever  ①.

      ※   The  larger  the  number,  the  longer  the  stitch  w ill  be.  Maximum   stitch  leng th  is  5  m m.

              Fo r  rev erse  stitching ,  it  is  3  m m

ꁴ 

Reverse  sewing  device 

  The  reverse  sewing  device  is  of  the  automatic-resetting  type.  T he  material   wil

                                be    fed  backward  when  the  reverse  lever  ①  is  pressed,  and  forwa rd  a gain  when  it  is    released.

Summary of Contents for LS2-H530

Page 1: ...PART BOOK LS2 H530 LS2 H5300 SINGLE NEEDLE SIDE CUTTER LOCK STITCH SEWING MACHINE WITH THREAD TRIMMER 1 OPERATION MANUAL...

Page 2: ......

Page 3: ...symbol at left means beware of injury This symbol indicates something that you must not do This symbol indicates something that you must do The picture inside the circle indicates the nature of the t...

Page 4: ...5 off A S 34 2 40 25 OFF A S A S...

Page 5: ...all the belt covers to the machine head and motor Be sure to wear protective goggles and gloves when handling the lubricating oil and grease so that they do not get into your eyes or onto your skin ot...

Page 6: ...placing the bobbin and needle when not using the machine and when leaving the machine unattended For machines with automatic presser lifter do not touch the solenoid section because if becomes hot dur...

Page 7: ...rician to carry out any maintenance and inspection of the electrical system Turn off the power switch and disconnect the power cord from the wall outlet at the following times otherwise the machine ma...

Page 8: ...act your nearest UNICORN dealer The positions of the labels may vary slightly depending on the model of sewing machine or motor 1 2 Be sure to connect the ground If the ground connection is not secure...

Page 9: ...ing machine is first turned on verify the rotational direction of the pulley with the power on The pulley should rotate counterclockwise when viewed from the pulley Power must be turned off when the m...

Page 10: ...6 8 Adjusting the stitch length 6 MECHANICAL DESCRIPTION 7 1 Thread trimmer 7 2 Thread wiper 7 ADJUSTMENT 8 15 1 Adjusting the needle bar height 8 2 Adjusting the rotary hook position 8 3 Adjusting th...

Page 11: ...4 8mm 3 16 6 4mm 1 4 1 How to install the belt V V 13mm 16mm Tilt back the machine head and place the belt onto the motor pulley and machine pulley Press belt with a finger force of 5 N and adjust th...

Page 12: ...he oil cover Screw Wipe off any contamination from the magnet and the oil pan Use the oil specified by Spindle15 2 Adjusting lubrication for upper shaft and rotary hook 1 1 Upper shaft lubrication Rem...

Page 13: ...needle raised above the needle plate 2 Upper knife operation To operate the upper knife lower the upper knife set lever The upper knife will now operate in sync with the operation of the machine To s...

Page 14: ...RATION 3 Attaching the needle DB 1 Insert the needle completely making sure that the lengthwise groove of the needle is on the left and secure it using the set screw Use a DBx1 needle 4 Threading the...

Page 15: ...bin case tension spring 3 Pull the thread from the bobbin case tension spring 6 Winding the bobbin thread 1 2 3 4 1 Fit the bobbin in the bobbin winder shaft 2 Depress the joint as far as it will go 3...

Page 16: ...tension at this time is 25 30g To adjust the operation range of the thread take up spring loosen the set screw and turn the thread tension bracket assembly To adjust the tension of the thread take up...

Page 17: ...he thread trimming solenoid activates pressing the thread trimming cam lever stud The roller shaft of the thread trimming cam lever assembly secured by the thread trimming cam lever stud id pushed abo...

Page 18: ...rejector needle bar bush Then firmly tighten the screw A 0 0 5mm 0 0 05mm Align the bottom reference line of the needle bar with surface A of the needle bar oil rejector needle bar bush by turning the...

Page 19: ...een the rotary hook and the rotary hook holder is approx 0 7 0 9mm Set the feed regulating dial to maximum and turn the machine pulley Check that the needle enters the center of the feed dog hole at t...

Page 20: ...epressed fit the indentation of the thread trimming clutch over the roller shaft 3 When the space between the side faces of the thread trimming clutch and the roller shaft is 0 6 0 8mm tighten the scr...

Page 21: ...the indentation of the thread trimming clutch 3 With the thread trimming solenoid depressed turn the machine pulley Adjust the movable knife and the fixed knife so that they overlap when the rotation...

Page 22: ...ve the feed bracket up or down 1 2 2 90 1 When the feed dog is fully raised its angle is properly adjusted if the circle on the feed bracket shaft aligns with the index on the feed rock shaft arm 2 To...

Page 23: ...sition there should be a 9 5 11 5 mm gap between the upper surface of the needle plate and the needle tip with thin or medium materials or a 10 12 mm gap with thick materials If adjustment of needle s...

Page 24: ...Raise the presser foot using the presser bar lifter 2 Remove the screw and the needle plate 3 Remove the screws and the feed dog 4 Remove the screws and the auxiliary needle plate 5 Turn the machine p...

Page 25: ...per feed scale to 0 2 The back edge pf the upper knife should be aligned with the needle center The upper knife can be adjusted by loosening the screw and moving the knife within a range of 2 mm forwa...

Page 26: ...16 4 4 8 8 8 8 4 4 4 6 6 6 2...

Page 27: ...hook timing 8 Thread wiper too high Thread wiper position Adjust thread wiper position with screw Thread breakage Improper threading Threading Rethread 4 Bent needle Blunt needle tip jammed eye Needl...

Page 28: ...18 4 4 1 4 4 8 8 8 6 6...

Page 29: ...resser foot contact Presser bar pressure Tighten presser foot adjustment screw Presser bar height Adjust presser bar height Improper needle to rotary hook timing Needle bar rise Adjust needle to rotar...

Page 30: ...20 6 6 6 6 puff 8 11 14 4 13 11 14 11...

Page 31: ...ok stop gap too small Gap Adjust needle to rotary hook timing 8 Improper thread cutting a Needle bobbin threads not cut b Needle thread not cut c Bobbin thread not cut Movable knife fixed knife do not...

Page 32: ...22 6 1 13 6 11 11 11 11...

Page 33: ...read cutter signal not transmitted Check circuits refe to motor adjustment manual Thread wiper does not function Needle thread remainder too long Adjust pretension 6 Timing too early wipes thread befo...

Page 34: ...24...

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