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청  소  시

   

★  청소  작업  시  반드시  전원을  OFF시킨  후

          작업을  진행  하십시오.  그렇지  않으면  폐달

                            오작동으로  인한  상해의  원인이  됩니다.

                      ※  클러치  모터  사용  시  전원을  OFF시켜도

                            모터의  내부는  회전을  하고  있으므로

                            반드시  기다렸다가  정지  확인  후 

                            청소  작업을  하십시오.

 

 

★  급유장치에  기름  또는  구리스  취급  시

        반드시  보호  안경과  보호  장갑을 

                          착용  하십시오.  기름  또는  구리스가  당신의

                          눈과  피부에  접촉되어  감염되는  것을

                          막을  수  있습니다.  또한  기름  또는 

                          구리스를  어떤  상황에서도  절대  먹지 

                          말  것  이며,  만일  상황발생시는  구토를 

                          하거나  응급조치를  받으십시오.   

유  지    및    점  검  시

                   

                    ★  유지  및  점검  작업  시  반드시  숙련된 

                          기술자에  의해  수행  되어야  합니다.

                    ★  전기  장치의  유지  및  점검시에는  자사의

                          A/S센터  또는  숙련된  기술자에  의해  수행

                          하여야  합니다.

                    ★  다음과  같은  상황에서는  반드시  전원을  OFF 

                          시키십시오.  그렇지  않으면  실수로  폐달

                          작동시  상해의  원인이  됩니다.

                      ①  바늘에  실을  끼울  때

                      ②  보빈이나  바늘  교체  시

                      ③  기계를  사용하지  않거나,  장시간  자리를

                            비울시

                   

★  전원장치  조절이  필요할  때  많은  주의를

                              필요로  하며,  안전사고를  예방할  수

                              있습니다.

                        ★  소모품  교체  시  자사의  제품과  가장

                              유사한  Unicorn  부품을  사용  하십시오.

                        ★  만약,  필요에  의해  안전장치를  제거

                              했을  경우  반드시  제거  했던  위치에

                              재결합해야  되며  확인  후  올바르게

                              사용해야  합니다.

                        ★  검증  되지  않은  기계  변경에  의한  문제

                              발생시  자사로부터  보증을  받을  수 

                              없습니다.   

           

                    ★  Attach  all  safety  devices  before  using

                          the  sewing  machine.  If  the  machine  is

                          used  without  these  devices  attached,

                          injury  may  result.   

  ★  Turn  off  the  power  switch  at  the

        f ollowing  times,  otherwise  the  machine

                          may  operate  if  the  treadle  is

                          depressed  by  mistake,  which  could 

                          resul t  in  injury.

                         

․   

when  threading  the  needle

                         

․   

when  replacing  the  bobbin  and  needle

                         

․   

when  not  using  the  machine  and

                              when  leaving  the  machine  una ttended.

                    ★  For  machines  with  automatic  presser

                          lifter,  do  not  touch  the  solenoid

                          section.  because  if  becomes  hot

                          during  operation  and  may  cause

                          severe  burns  when  touched.

                    ★  If  an  error  occurs  in  machine  operation,

                          or  if  abnormal   noises  or  smell s  are

                          noticed,  immediately  turn  off  the  power 

                          switch.  then  contact  your  nearest 

                          Unicorn  dea ler  or  a  qualified  technician.

                    ★  If  the  machine  develops  a  problem,

                          conta ct  your  nearest  Unicorn  dealer  or

                          a  qualified  technicia n. 

Summary of Contents for LS2-H520

Page 1: ...LS2 H520 LS2 H5200 SINGLE NEEDLE NEEDLE FEED LOCK STITCH SEWING MACHINE WITH THREAD TRIMMER 1 OPERATION MANUAL PART BOOK...

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 33 2 40 25 OFF A S A S...

Page 5: ...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 otherwise...

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: ...L DESCRIPTION 7 1 Upper shaft and needle bar mechanism 7 2 Thread wiper 7 ADJUSTMENT 8 16 1 Adjusting the needle bar height 8 2 Adjusting the rotary hook position 8 3 Adjusting the rotary hook holder...

Page 11: ...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 the nut so that there is...

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: ...he machine with the needle tip below the needle plate when the needle position switch is set to the needle down position Back treadle the pedal to position and release it to neutral to trim the thread...

Page 14: ...4 OPERATION 3 Threading the needle...

Page 15: ...bin case tension spring 3 Pull the thread from the bobbin case tension spring 5 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: ...turned on the 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 i...

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: ...heck that the needle tip is as indicated below For thin materials The needle tip is aligned with tips of the feed dog and the upper surface of the needle plate For thick materials There is a 5mm gap b...

Page 20: ...parallel loosen the screw of the needle feed arm then move the needle bar bracket forward or backward 2 Feed dog position Set the feed regulating dial to maximum and turn the machine pulley Check that...

Page 21: ...m 3 0 6 0 8mm 4 0 5mm 40Kg 1 Loosen the screw and turn the machine pulley until the needle bar is raised 5 mm above its lowest position then depress the thread trimming solenoid 2 With the thread trim...

Page 22: ...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 23: ...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 24: ...ard and backward at the inching speed 215 spm 3 Adjust as follows when the forward and backward stitch lengths are different 1 Remove the rear plate 2 Loosen the screw 3 When the forward stitch length...

Page 25: ...osition 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...

Page 26: ...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 27: ...17 4 4 16 15 15 15 4 4 4 6 6 6 2...

Page 28: ...y hook timing 15 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 Nee...

Page 29: ...19 4 4 1 4 4 15 15 15 6 6...

Page 30: ...esser 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 rotary...

Page 31: ...21 6 6 6 6 puff 15 19 23 4 22 19 23 19...

Page 32: ...ok stop gap too small Gap Adjust needle to rotary hook timing 15 Improper thread cutting a Needle bobbin threads not cut b Needle thread not cut c Bobbin thread not cut Movable knife fixed knife do no...

Page 33: ...23 6 1 22 6 24 24 24 24...

Page 34: ...ead cutter signal not transmitted Check circuits refer to motor adjustment manual Thread wiper does not function Needle thread remainder too long Adjust pretension 6 Timing too early wipes thread befo...

Page 35: ...25...

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