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8.  위치검출기의  조정  /  Adjusting  the  synchronizer

조    정  /  ADJUSTMENT

1.  위치검출기는  2개의  소자로  침위치를  검출합니다.  또  침하신호와  사절신호를  하나의  소자로  제어합니다.

2.  전원스위치를  넣고,  침하정지위치에서  미싱을  정지했을  때  침판상면에서  침고정나사  하단까지  18~22m에

      정지합니다.

★조정이  필요한  경우는  전원스위치를  끊어주십시오.

ꁴ 

침상정지위치의  조정

★2개의  죔나사①를  풀어주십시오.

★죔나사①를  미싱풀리의  회전방향에  이동시키면  침봉②가  높은  위치에서  정지합니다.

ꁴ 

침하정지위치의  조정

1.  발판을  밟은  후  중립(발판을  놓는다)으로  해주십시오.

2.  침판상면에서  침고정나사  하단까지  18~22mm로  정지하는  것을  확인해주십시오.

3.  죔나사③를  풀고,  위치검출기④을  이동시켜서  조정해주십시오.                        ※  다시  침상정지위치를  확인해주십시오.

★풀리를  설치할  때  풀리단면과  위치검출기의  간격을  0.5mm로  해주십시오   

    주)  침하정지위치는  조정하지  말아주십시오.

★  The  synchronizer  includes  the  two  elements  which  are  used  to  detect  the  needle  position.  One  of

      these  elements  is  used  to  control   the  down  needle  stop  position  signal  and  the  thread  trimming  signal. 

      When  the  power  is  turned  on  and  the  machine  is  sto pped  i n  the  dow n  needle  stop   position,  there 

      sho uld   be  a  18~22  mm  gap  between  the  upp er  surface  o f  the  needle  p late  and   the  bo ttom   edg e  of 

      the  needle  set  screw .  When  the  m achi ne  is  stop ped  in  the  up  need le  sto p  po sition ,  there  should   be  a   

      9.5~11.5  m m  g ap  betw een   the  upper  surface  of  the  need le  plate  and  the  needle  tip  with  thin  o r 

      m ed ium  materials,  o r  a  10~ 12  m m  g ap  w ith  thick  m aterials. 

      If  a djustment  of  needle  stop  position  is  necessary,  refer  to  the  procedure  below.

ꁴ 

Adjustment  of  the  up  needle  stop  position

1.  Turn  off  the  power.

2.  Loosen  the  two  screws  ①.

3.  To  raise  the  needle  bar  ②,  rotate  the  screws  ①  in  the  direction  of  normal  pulley  rotation.

    To  lower  the  needle  bar  ②,  rotate  the  screws  ①  in  the  opposite  direction.

※  The  synchronizer  is  adjusted  at  the  factory.    Do  not  remove  the  synchronizer  after  removing  the

      machine  pulley.

      When  a ttaching  the  pulley,  set  a  0.5  mm  gap  between  the  pulley  edge  and  the  synchronizer.

      Do  not  adjust  the  down  needle  stop  position.

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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