User`s Manual
Contents
1. au Figure 1 7 Contents of marks Caution MM CAUTION IN x o Do not operate without finger guard and safety devices Before threading changing and needle cleaning etc switch off main switch ATI BSNL HAS S0 AFEOHAI Ot AM HPS TSHAIL ASME HEA FUL AANE M AMO SunStar Figure 2 D Arm Thread adjusting device Bed 9 Oil gauge 9 Face plate Presser foot Upper cap Main feed regulating button Oil window 2 Air wiper Knee lifting cylinder Power switch Upper shaft pulley Bobbin stand Safety devices Thread guide cover for needle thread 2 Finger guard 6 Thread take up lever cover for needle thread Safety plate Specifications Model SF 7500 Series Description High speed Flat Bed Three Needle Interlock Sewing Machine Stitch Type ISO 406 407 602 605 For use General seaming of knitted materials Sewing speed Max 6000 s p m In the case of on and off operation Stitch length 1 4 3 6mm Stitches per inch 7 18 The number of stitches per 30mm 8 21 Needle UY x 128GAS No 65 No 90 Standard No 70 2 needle 3 2 4 0 4 8 5 6 6 mm Needle clearance 3 needle 5 6 6 4 mm Needle bar stroke 31mm Lifting of presser foot Max 8 0 mm 7 mm if eguipped with a spreader Feed Regulation Push Button type Differential ratio Max Normal Differential Ratio2. n 96 x Required Number of Spacer A SF 7500 Series Figure 4 Thickness of Table Number of A 40mm 3X4 12 45mm 2x4 8 50mm 1x4 4 12 2 Installation of motor and belt Use a 3 Phase 2 Pole 550W 3 4 HP clutch motor and M type V belt for the machine SunStar Start the pedal When the motor pulley begins to move to the left adjust the position of the motor so that the centers of the motor pulley and the M C pulley meet with each other Diameter of Motor s p m of machine Pulley mm 50Hz 60HZ 75 3 200 3 900 80 3 400 4 100 85 3 600 4 400 90 3 900 4 700 100 4 300 5 200 110 4 700 5 700 120 5 100 6 200 130 5 500 6 700 61mm 40 ie 5 5mm 10mm The diameter of pulleys in the market is generally set with a 5 mm clearance 3 Adjustment of belt tension Warning i i Be sure to turn the power switch off before adjusting belt tension Turn the screw of the motor around Adjust the belt to go in approximately 10 20mm when its center portion is pushed with a finger Refer to figure 6 4 Attachment of Belt Cover i Warning Always install the belt cover for safety Fasten the belt cover upper with a screw as shown in figure 7 Figure 5 Figure 6 Figure 7 13
3. 5 Installing cover for needle bar thread guide As illustrated in the figure fix the cover for needle bar thread guide onto the arm with two screws Figure 8 6 Installation of thread guide plate Use screws I 2 each to mount the thread guide plate onto the arm as described below in the figure Figure 9 Sewing speed and rotating direction of pulley The maximum speed of the sewing machine is 6 000 s p m and 4 000 s p m for commercial use To ensure durability run the sewing machine at 4 000 s p m for 200 hours of operation or 1 month when using the machine for the first time As shown in figure 10 the rotating direction of the lower shaft pulley and upper shaft pulley is clockwise Figure 10 14 SunStar Warning Be sure to turn the power switch off before oiling NY SYN FN YY Y YH Saig a D E NR SR HR SRT Y HY YH SH CR YR YE YMI Y RY Y FE DR Y YN YT YN RTH S Yd RY YH YN HY HY 1 Lubricating oil Use industrial purpose lubricating oil supplied by SunStar or SF oil by YANASE for this particular type of sewing machine Caution i Do not put foreign materials into the lubricating oil It will degrade the lubricating oil and cause mechanical breakdowns 2 Supplying oil The sewing machine is not oiled when shipped out from the factory To ensure trouble free use of the sewing machine open the upper rubber lid and supply oil to
4. D The machine is not provided with a local lighting due to the feature of machine Therefore the illumination of the working area must be fulfilled by end user 3 Repairing When the machine needs to be repaired only the assigned troubleshooting engineer educated machine at the company should take charge Before cleaning or repairing the machine turn off the main power and wait 4 minutes till the machine is completely out of power Not any of the machine specifications or parts should be changed without consulting the Caution company Such changes may make the operation dangerous Spare parts produced by the company should only be used for replacements Put all the safety covers back on the machine after the machine has been repaired SunStar 4 Operating machine Warning SF 7500 Series is made to sew patterns on fabrics and other similar materials for industrial use Follow the following indications when operating the machine Read through this manual carefully and completely before operating the machine Wear proper clothes for work When the machine is in operation do not bring your hands or body near the moving parts of the machine such as needle looper spreader thread take up lever and pulley etc Keep the covers and safety plates on the machine during operation Be sure to connect the earthing conductor D Turn off the main power and check if
5. SunStar Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 9 Relation between Moving Mes Needle Thread and Looper Thread After all adjustments are made place the thread properly and check the followings before starting sewing The moving mes should pass by the inner side of the loopers 2 And the tip of the looper hook should pass in front of the looper thread When the moving mes returns the needle thread and the looper thread should be caught by the hooks respectively And the threads should be cut by the fixed mes i Figure 85 If the moving mes doesn t operate properly adjust the distance between the left needle and the tip of the needle thread hook at over 2 5 3 0mm See Fig 76 Adjustment of Moving Mes and Needle Figure 86 45 Pomme casa nea sa non DDOD ORDD DDED DD DOD DD DD DD GG O Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 1 EF Y HI EE A A cat A E HF RE MH FF FE Se sete ARAA A DD sce beets 6 Adjustment of thread tension release mechanism 1 Block for trimming switch guide A Loosen the screw B When the rod of the trimming cylinder is at the far left when the trimming device is not working adjust the block for trimming switch guide O to parallel with the rod en
6. User s Manual SF 7400 Series SF 7500 Series High speed Flat Bed Interlock Sewing Machine SUNSTAR MACHINERY CO LTD MME 051110 1 Thank you for purchasing our product Based on the rich expertise and experience accumulated in industrial sewing machine production SUNSTAR will manufacture industrial sewing machines which deliver more diverse functions high performance powerful operation enhanced durability and more sophisticated design to meet a number of user s needs Please read this user s manual thoroughly before using the machine Make sure to properly use the machine to enjoy its full performance The specifications of the machine are subject to change aimed to enhance product performance without prior notice This product is designed manufactured and sold as an industrial sewing machine It should not be used for other than industrial purpose SUNSTAR MACHINERY CO LTD SunStar Classification of Pattern Types Bed Type amp No of Needle 75 Flat Bed 3Needle 74 Flat Bed 2Needle Symbol of Series SIUNSTAR lat Bed Chain Stitch M C EU Main Motor N Fortuna lll M Clutch Motor Top Cover Thread O Without Top Cover Thread Needle Distance 1 With Top Cover Thread 32 3 2mm 40 4 0mm 48 4 8mm 96 5 6mm 64 6 4mm SF 7500
7. and the feed dog on the right side is 0 0 5mm fasten the screw 2 to attach the fixed mes stopper L to a part of the fixed mes body 6 The moving mes returns from the furthest left along with the needle thread and the looper thread Then it is overlapped with the fixed mes The meses cut the needle thread and the looper thread Until the threads are cut off completely the clamp spring should be 0 0 5mm away from the feed dog This position determines the length of the remaining thread after sewing is finished To make the remaining thread shorter locate the clamp spring on the left side To make the remaining thread longer locate the clamp spring on the right side When the plunger of the cylinder is on the left side adjust the distance between the blade 0 of the fixed mes body and the fixed mes stopper small at 1 5 2 0mm If the trimming device doesn t operate Loosen the screw for adjustment 8 Adjustment of Clamp Spring Pressure 44 The clamp spring holds the looper thread after it cuts the looper thread Loosen the screw for pressure adjustment To increase pressure turn the screw clockwise To reduce pressure turn the screw counter clockwise Maintain pressure at the smallest level as long as the clamp spring can hold the looper thread Figure 82 Figure 83 2 Figure 84
8. i Caution i When removing the oil filter cover be sure to prevent the remaining oil in the oil filter from leaking My RF EG A O PE E AT P EENE A fy Yi WY WR Fm N T RA AN EE yd dm Y FR Y PTEE E E A Y A AEA TA ym EF TH 16 SunStar Standard adjustments of the sewing machine 1 Needle used This sewing machine uses UY X 128GAS needles Needles come in various size Select the most appropriate needle depending on the thickness or the type of sewing Metric size 6 70 75 80 85 90 materials Japanese size 9 10 11 12 13 14 2 Installation of needle Warning Turn the power switch off before installing a needle Use a needle driver to loosen the screw I and remove the old needle with tweezers Figure 15 Set the needle groove to completely face back and raise the needle to the groove tip of the needle holder Then fasten the screw O firmly Figure 16 17 x O Xx ii Oe g O x Oo 2 17 3 Threading Insert the thread as shown in figure 18 for 3 needle sewing machine If treading is not done correctly stitches may skip threads may break or tension may be uneven A B and C stand for each needle thread D for top cover thread and E for looper thread Except for the second needle thread in the case of 2 needle sewing machine refer to the above instructions for threading Do not insert
9. 1 2 Max Reverse Differential Ratio 1 0 7 Differential Feed Regulation Adjusting screw and adjusting lever Lubrication Automatic lubrication by oil pump Oil used Oil fan capacity All purpose machine oil 1100CC 10 Installation 1 Installation of table 1 Types of table A Supporting Board Type SunStar chal ait AA cal Bat aad Stand Mounting Position Stand Mount ing Position 275 205 120 ma ie a6 E Zee 75 3 99 Sholo Tu Foes es 1 1 1 14 j 1 1 SS0 Hole mru 1 1 1 1 A T Fr e 255 a NN NE Je 3 Ne H don 1 1 as 1 1 1 1 3 e 1 1 i f a 1 1 1 s 1 3 1 1 1 j 3 yt 1 1 i 1 1 1 1 1 Je 1 225 23 aly 1 1 a VN 4 1 1 i q 1 L J Hels is L 3 1 El 3 T l S ar yd 7 1 WEI a oe gt at H amp mZ NW yd L 1275 8 SHl tru 47926CB Depths nr Section K K l T Scale 1 2 ik 26809 305 1 200 Figure 3 11 2 Installation of Supporting Board Install the sewing machine as shown in Fig 4 Insert screws into the bed supporting board to fix the bed on the table Place rubber cushions on top of screws for safety Then install the sewing machine C0666 NN
10. C DEVICE UT A OOA Attachment Option ST F Top Cover Thread Trimmer Flat Bed CO Covering Guide Device HE Hemming Guide UT A Under Thread Trimmer 2 Solenoid Valve Type WF Walking Foot UT B Under Thread Trimmer 3 Solenoid Valve Type ATF Auto Tape Feeder TL See Through Light for Hemming SL Compact Spot light TC Needle Thread Clamp BN Binder Shape of Stitch Plate G Standard L For long stitch longer than 2 5mm S For short stitch shorter than 1 8mm CONTENTS 1 Machine Safety Regulations ss ssscsssseesenssecsseessesssesseesenessusssussenasaey 6 1 Transporting machine ug GG GG I IG UF GU SUL IU AU FD WG eat 6 2 Installing machine 5 04 csscssecsoedeetecosconscsoncbenitersesrevssovoeussetonsastatvosinsesevevsnetetarsosduseurvetenstetendentens 6 3 Repairing maehin amp aiii Fy y GE YF dd GOR yd GDC 6 A Operatme Machines any Fe Ysw ed TYF Y E OOOO 7 2 safetydeyVices aan ea Y Yw O 7 6 Caution Mark poSItiOlli i uiuiiiu hi uii dad RADYR FN De eE EEE EE KETEK EEEE NEEN EEKE nat 8 7 COMMS OEMAR S chee ei GY YU A YD Y y 8 2 Names of machine parts 00ssccsseesscsseesscssncescuessueseceseusssesssosssossenssenes 9 3 Specifications sssssss11222211 1111102222111122 111200n1nn nnn nnnnnnnnnnnnnnnnnnnn nnmnnn nnn 10 4 Installation sssssssnnnn
11. auxiliary tension adjusting device of the needle thread I as shown in figure 31 Figure 31 23 Use the needle thread guide when using stretchable threads such as synthetic thread and the loop of needle thread is unstable It is a standard setting to bring the center of the needle hole of the needle bar take up against the upper side of the needle thread guide when the needle bar is at its lowest position The height of the needle bar guide can be adjusted by loosening the screw 4 refer to figure 32 Figure 32 2 Adjustment of Top Cover Thread Tension When the top cover thread eyelet Right D is moved up in the X direction the take up volume decreases When it is moved down in the opposite way the take up volume increases When an elastic thread such as woolly thread is used as the top cover thread loosen the screw to move down the top cover thread eyelet Right in the Y direction This time make sure that the top cover thread passes through the for woolly thread bottom hole as in the right figure Figure 33 3 Adjustment of the Looper Thread Tension The figure shows the looper thread take up The standard setting is to place the thread holes of the looper thread guide at Mark X on the looper thread cast off plate To increase the length of loose thread loosen the fixing screws for the looper thread guides and move them
12. device does not work check the cords R For the pneumatic solenoid valve carries polarity check the connection between the cable P and the connector The device will not work if the cords are plugged in incorrectly to opposite power Standard solenoid connector Knee lifting solenoid connector Green Figure 65 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Knee lifting solenoid connector 3 4 signal 2 Lower trimming Standard solenoid connector 2 signal 6 3 Top cover thread trimming Standard solenoid connector 3 signal 7 B Small Motor Fortuna IV Compact Servo Motor a For UT B device Press solenoid valve buttons to check how each device moves If the device does not work check the cords For the pneumatic solenoid valve carries polarity check the connection between the cable and the connector The device will not work if the cords are plugged in incorrectly to opposite power INIO T A OIN Standard solenoid connector Figure 66 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Standard solenoid connector 2 10 signal 2 Lower trimming Standard solenoid connector 11 signal 3 3 Air wiper operation Sta
13. felt to prevent the needle and the thread from passing the dry felt Figure 28 22 SunStar Adjustment of Sewing Machine 1 Adjustment of Needle Thread Tension When the tip of the needle thread take up is 52mm away from the center of the screw and the needle bar is at the highest position Part a of the needle thread take up D becomes horizontal This is a standard needle thread tension If you desire to raise the needle thread tension move the needle thread take up in the Y direction If you desire to lower the needle thread tension move the take up in the X direction To make this adjustment loosen the screwG Figure 29 If more adjustment is needed loosen the screw and check the thread tension while moving the position of the thread eyelet When the thread eyelet is moved in the Y direction the l tread tension will increase When it is moved in the X 3mm direction the thread tension will decrease Y The standard setting is to set the distance between the middle of the screw and the upper tip of the thread eyelet at 8mm i e Figure 30 For some types of threads looping is not an easy thing to do Wrong loops may make it difficult for the looper to pass needle thread loop and cause skipped stitches In such case pull the needle thread through the
14. few stitches 4 Press the pedal backward to stop the needle 5 Loosen the screw and turn the line on the upper shaft pulley to align with the hole in the arm Be sure to keep the position of the screw unchanged Figure 72 6 To see whether the needle bar is located at 0 5mm below the highest point press the pedal and run the machine Figure 73 i Caution i I 1 At this point the needle bar should be positioned at the highest point i 2 The optimal condition for the synchronizer sensor is when the needle bar is 0 5mm below the highest point by turning the upper shaft pulley a bit more 40 SunStar 5 Adjustment of automatic thread trimmer Warning Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 1 Adjusting thread trimming air cylinder A The desirable stroke is 15mm B Loosen the screw of the collar to adjust the J C stroke o MR NN FF WN GY AE YN FYR A Uy ND q i Caution i oo D os i The operation status of the automatic thread trimmer i L i should be re adjusted when air cylinder stroke changes Check the status of the limit switch o 15mm Figure 74 2 Position of moving mes Warning The trimming device can be moved manually on
15. forward and then fix them To reduce the length of loose thread move the looper thread guides backward and fix them Note If the looper thread s loose thread is too long it might cause for woolly thread stitch skips Make sure that the looper thread s loose thread is not too long Figure 34 When using woolly thread move the looper thread guides forward to the maximum and make sure that the thread doesn t pass through the supplementary tension disc H Figure 35 24 SunStar 4 Position of Looper Cam In the figure the looper cam is viewed from the side of the needle bar When the left needle reaches the middle of the looper lower the needle from the highest position so that the thread stays away from the highest position of the looper cam See the figure below Make adjustments by loosening the screw thread Figure 36 Figure 37 5 Removing Presser Foot and Amount of Presser Foot Lift Loosen the screw for the presser plate collar 8 Press the lap lift lever and separate the presser foot When the lap lift lever is pressed adjust the maximum height of the presser foot to set the distance between the front face of the needle plate and the bottom of the presser foot at 7 0mm when the spreader is equipped When this adjustment is completed set the distance between the bottom of the presse
16. guide for thread pull off bar 6 G Fasten the screw 47 5 Thread pull off hook unit Figure 91 The thread pull off hook unit A is designed to control the needle thread in the sewing material to the minimum when sewing starts A Loosen the screw 6 B To reduce the amount of remaining thread lift the thread pull off hook unit A To increase bring the unit down i Caution i A Use the thread pull off hook B unit only when you are using wool thread for the looper thread When the thread pull off hook B unit is not in use bring it up so that thread does not get caught i B Do not force the thread pull off hook A unit up Stitches may not be formed when the sewing starts 48 SunStar Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode ake GN LOL E LL e DL LOL e E La A A AR GL E EA a tee GU aa LU nL oat oe In Gn oe Und 7 Adjustment of air wiper 1 Loosen the screw 2 Move the air wiper front and back so that the air wiper Pa operates behind the needle 3 Fasten the screw 3 4 Loosen the screw 4 So 1mm EN 5 When the needle is at the highest point adjust the air 2mm wiper I so that the center of the air b
17. of the looper A meets the left needle the needle distance should be 0 2 0 3mm When the tip of the looper A meets the central needle 2 the needle distance should be 0 05 0 15mm When the tip of the looper A meets the right needle needles should be slightly contacted some 0 2mm In this case press the needle guide Rear for the right needle 8 and adjust the distance between the tip of the looper A and the right needle at 0 0 05mm Make the adjustment by loosening the screw for the looper holder 0 2 0 3mm Figure 46 27 X lt In case where two needles are used When the tip of the looper A meets the left needle the needle distance should be 0 2 0 3mm A When the tip of the looper A meets the right needle the needles should be slightly contacted some 0 2mm 0 2 In this case press the needle guide Rear for the right 0 3mm needle and adjust the distance between the tip of the O O looper A and the right needle at 0 0 05mm Make the adjustment by loosening the screw for the Figure 47 looper holder UU 12 Needle and Needle Guard Rear yx Height of Needle Guard Rear When needle guard R is at the lowest point of the needle bar align the center of the needles along the line a of the needle guard R Figure 48 yx Longitudinal position of needle guard R When the end tip of the looper
18. sits at the far left the distance from the left needle center to the hook tip of the spreader a is 4 5mm 5 5mm The spreader can be adjusted by untightening the spreader fixing screw and the spreader handle fixing screw Figure 55 29 2 Fixing of top cover thread guide The clearance between the lower side of the top cover thread guide to the upper side of the spreader is 0 5mm Fix the screwG when the spreader is at its far right in order to hook the thread well onto the thread hooking part 3 Fixing of the top cover thread eyelet 30 When the needle bar is located at the lowest position adjust the front face of the top cover thread guide and the thread hole of the top cover thread eyelet to be at the central line of the top cover thread guide slot and fasten the screw x Adjust 1 2 and 3 depending on the type of thread used zo i 1 0mm R Figure 56 Figure 57 SunStar Automatic Thread Trimmer 1 Operation Caution i Be sure to lay sewing materials under the presser foot before operation 1 Operation procedures for UT B and UT A device Motor is selected either from or Operation procedures for 1 or are as follows A Put sewing materials under the presser foot and step on the pedal towards position
19. the switch is turned off before opening electric boxes such as the control box Stop the machine before threading the needle or checking after work Do not step on the pedal when turning the power on Do not operate the machine with any cooling fan blocked The air filter on control box must be cleaned once a week D If possible install the machine away from source of strong electrical noise such as high frequency welding machines Keep cover in place before operating turn off power before inspecting or adjusting in order i to prevent physical injury from belt i PE 5 Safety devices Caution Safety label Cautions during machine operation Thread take up lever cover A device designed to prevent any physical contact with thread take up lever Belt cover A device designed to prevent the body and clothes from getting jammed by the moto Finger guard A device to prevent contact between fingers and needles D Safety plate Eye protecting device 6 Caution mark position CAUTION z O Do not operate without finger guard and safety devices Before threading changing Caution mark is attached on the machine for safety When you operate the machine follow the directions on the mark and needle cleaning etc switch oi main switch EF Bost HAZA QO FEA DHAS AL EnA SAMO BEA MRO ANAE H FAAS a f CAUTION
20. thread when using wool thread Figure 18 4 Adjustment of thread tension Thread tension must be adjusted according to the type of threads and fabrics stitch length and other sewing conditions Thread tension can be adjusted by rotating the thread adjusting device cap Turn clockwise to strengthen and counterclockwise to weaken the tension Figure 19 18 SunStar 5 Adjustment of presser foot tension If the sewing material is in good condition it is better to have as little tension as possible on the presser foot Loosen the presser bar nut and turn the presser bar screw with a coin to adjust the tension of the presser bar Re tighten it afterwards Tension will become stronger if the screw is turned clockwise and weaker if turned counterclockwise 6 Adjustment of presser foot Waning i Be sure to turn the power switch off before adjusting the position of the presser foot 1 i i i 1 1 1 1 1 L After unfastening the screw I move the front part of the presser foot left and right to bring the needle to pass the center of the needle passage of the presser foot Figure 21 7 Adjustment of main feed Warning i Be sure to turn the power switch off before adjusting stitch length 1 Stitch length Stitch length can be adjusted straight from 1 4mm to 3 6 mm The table below shows stitch length number of stitches per inch
21. 25 4mm and per 30 mm Stitch length mm 3 6 2 4 1 4 No of stitches per inch 7 10 5 18 No of stitches per 30mm 8 12 5 21 19 2 Change of stitch length o Fo 20 Figure 22 Figure 23 Press lightly stitch length adjusting button I with your left hand so that the end comes in contact with inner parts With the button pushed in turn the upper shaft pulley 2 with your right hand so that the button goes in deeper While the button I is pressed hard turn the upper shaft pulley to change the stitch length Turn the upper shaft pulley 2 clockwise The closer graduation L becomes to Mark the larger the stitch length becomes When the mark points at TL y the stitch length becomes 3 6mm When the upper shaft pulley is turned counter clockwise and graduation S gets closer to Mark the stitch length gets smaller When the mark points at S y the stitch length becomes 1 4mm Although graduations are same the corresponding stitch lengths could be different depending on types of fabrics fabric thickness and size of differential Therefore the upper shaft pulley needs to be readjusted depending on situations ng O HD HI TL O NN FRYD ED A Y ID RH a A I I I Y SN EN DY Y EN HE as FR DN DN A T Caution When using sewing machines mounted with pneumatic trimming devices designed to automatically find the needle i location e g UT A
22. B Leave pedal at 2 neutral The needle will stop at the highest point C Step the pedal backward towards 3 position The trimming device will begin to move under the needle plate to cut the needle thread and looper thread The looper thread will be caught by clamp JO spring and air wiper will run for two seconds and OF then presser foot will go up For UT A device lifting of the presser foot and wiper operation will begin at the same time D Leave the pedal at neutral NN PaE The presser foot will go down DS Neutral __ O Trimming Presser foot lifting Figure 58 Caution If the pedal is not in position move the pedal towards or to bring the presser foot up down Led A nn 31 Caution Be sure to place sewing materials under the presser foot before operation i 2 Operation procedures for ST C device Motor is selected either from or Operation procedures for 1 or are as follows A Put sewing materials under the presser foot and step on the pedal towards I position Sewing will begin B Leave pedal at neutral The needle will stop at the highest point C Step the pedal backward towards position The trimming device will begin to move under the i needle plate to cut the needle thread and looper thread The clamp spring will catch the looper thread after trimming top
23. F Fd dn dod 19 7 ACPUStMENt OF main feed ionisiertes ine KEE YG Yy YF Gyn E 19 8 Adjustment of differential feedin irinenn ea ii 21 9 Needle Cooling Device and Oil Supply Device for Needle Thread 22 8 Adjustment of Sewing Machine 2 2 29 1 Adjustment of Needle Thread Tension oo eee esesseeseseseescsseeseeseasessnssesesseseesensseseaees 23 2 Adjustment of Top Cover Thread Tension cesses sseseesesseeseesessesseseesnseseasenseeneaees 24 3 Adjustment of the Looper Thread Tension eseseesesessesesesnseseasenseesssesseseessnsseseaes 24 4 Position OF Looper Caisse eine udd UIF DIFF RD LD0 25 5 Removing Presser Foot and Amount of Presser Foot Lift e u e ennunueunenenun 25 6 Relation between Needle and Needle Plate ccccccccccsscsscsscsscsscsscsscsscsssscsseseesseseeseeees 26 7 Fixing Angle and Height of Looper uo eseesesseseseseseesesesnsescsseesescaeensnsseseeseseessnsseseases 26 8 Movement of Looper to the Right eee eenseeseseeeseesesesssnsseseasensnssesssneasesensseseaees 26 9 How to Use Timing Gauges inn cnu DYD RD Y CR rid 21 10 Height of Needle Br nnig OFO iosuishenvntns sehsedbvounsetaessnesebicesvonasceesnstansransebivendbens 27 11 Longitudinal Position of Needle and Looper eesessesessesesesessesessesesesesseseasenseesenees 27 12 Needle and Needle Guard Rear ccccsesessesessesessescssescesese
24. UT B or ST C be sure to turn off the power before stitch width conversion x Main Feed Adjusting Button Stopper Use this function to keep the set stitch length same Loosen the screw to use the stopper Turn the main feed adjusting button stopper upward to set it up below the main feed adjusting button and fasten the screw Figure 24 SunStar 8 Adjustment of differential feed Warning i Be sure to turn the power switch off before adjusting differential feed 1 Normal Differential Feed Shrink Sewing Loosen the differential lever adjusting nut Move the differential feed lever up or down to place it at the desired position and fasten the nut When the lever is set at Graduation Long C the ratio of main feed to differential feed becomes 1 1 When the lever 2 is set at the position higher than Graduation C the lever is in the normal differential feed mode The graduations located above Graduation C refer to 1 1 25 1 1 15 1 1 75 and 1 2 from the bottom Figure 25 2 Reverse Differential Feed Stretch Sewing When the differential feed lever is set at the place below Graduation Long it is in the reverse differential feed mode When the lever is set at Graduation S the ratio of main feed to differential feed becomes 1 0 7 Figure 26 3 Adjustment of Differential Feed During Operatio
25. comes to the center of the right needle press the needle guard R to adjust the clearance between the needle and the looper at 0 0 05 mm At this point be sure to set the distance between the left needle and the needle guard R at 0 0 05 mm Adjustments can be done by loosening the screws D 28 Figure 49 Figure 50 13 Needle and Needle Guard Front When the tip of the looper is located at the center of the left and right needles adjust the distance between each needle and the needle guard Front at 0 0 3mm respectively Make the adjustment by loosening the screw 14 Height of Feed Dogs When the feed dog is located at the highest position the front face of the feed dog and the front face of the needle plate are in parallel In this case make the differential feed dog A and the main feed dog B have the same height and set the height between the front face of the needle plate and the front face of the feed dog at 1 0 1 2mm 15 Adjustment of needle and spreader 1 Fixing of spreader SunStar 7 Figure 51 B A 1 0 1 2mm L nnana GW Figure 52 0 5 0 8mm a Figure 53 Figure 54 Figure 55 When the spreader moves to the left the clearance between the left needle and the hook tip of the spreader a is 0 5mm 0 8mm Figure 53 When the spreader
26. cover thread and the presser foot will go up For UT A device lifting of the presser foot and wiper operation will begin at the same time D Leave the pedal at neutral The presser foot will go down D Start Neutral Trimming Presser foot lifting Figure 59 Caution If the pedal is not in position move the pedal towards or to bring the presser foot up down i 32 SunStar 2 Wiring 1 Limit switch A Adjusting limit switch q a Loosen screws I and b When trimming blade returns to its original o position adjust so that the switch is turned on c Fix screws and Figure 60 B Connecting limit switch a General Servo motor A Fortuna II Link the limit switch cord to the 12P connector as follows Uu Black White Switch and lamp connector Figure 61 b Small motor A Fortuna IV Link the limit switch cord to 8P connector as follows White Black Switch and lamp connector Black White Figure 62 33 2 Connecting solenoid valve A General Servo Motor Fortuna I servo motor a For UT B device Press solenoid valve buttons to check how each device moves If the device does not work check the cords For the pneumatic so
27. d of the trimming cylinder C Tighten the screw Figure 87 2 Thread tension release connecting plate A Loosen the nut 2 of the thread trimming air cylinder B Adjust the holder for limit switch bracket 8 to bring the thread tension release connecting plate to come between the screw head and the tension release lever C Tighten the nut Figure 88 3 Thread pull off lever A Loosen the screw of the tension release lever located on the backside of the machine B Lift the thread pull off lever to the top C Tighten the screw afterwards Figure 89 46 SunStar asta aac at adalat ab aaa ate ta aaa ac reba toa tba ttt ttt attain ate Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode Figure 90 A Loosen the screw 3 of the thread pull off eccentric cam 2 B Turn 2 to position the tension disc separator so that the tension disc separator opens as fast as possible C Loosen the screw to set a clearance of 35mm between the top of the thread pull off bar and the top of the guide for thread pull off bar 6 D With the screw 8 fix the thread pull off bar onto the thread pull off bar holder E Loosen the screw 0 F Set a clearance of 4 0mm between the collar for thread pull off bar 9 and the
28. d trimming Standard solenoid connector 12 signal 4 SunStar 3 Air pressure wiring map 1 ULB device eo 2 5x4x an A 2 5x4x 150mm 2 5 x 4 x 300mm 2 5 x 4 x 400mm LL SS air pressure 0 4MPa 0 5MPa 4Kgf cm 5Kgf cm 4 x 6 x 1 500mm Figure 69 37 2 UT A device 2 9x4x150mm oy 2 5 x 4 x 200mm L 2 5 x 4 x 200mm 2 5 x 4 x 300mm 4Kgf cm2 5Kgf cm2 solenoid valve 4x 6x 1 500mm 38 Figure 70 a SiunStat 3 ST C device 2 5 x 4 x 350mm solenoid valve 2 5 x 4 x 300mm 2 5 x 4 x 300mm wz air pressure 0 4MPa 0 5MPa Z 2 5 x 4 x 580mm 4Kgf cm2 5Kgf cm2 4x6x1 500mm 2 5 x 4 x 600mm Figure 69 39 4 Installation of synchronizer sensor an in NS ea A RF RT AU ane AR nA AR FN SS TN A Y BD AY NF I cue come AF ene bee SR SR FN earn wae O r Eu YY od Warning Leave the trimming cylinder plug pulled off from the control box in the motor Otherwise parts can be damaged 1 Install the synchronizer I on the machine and fasten screw 2 lightly 2 Turn on the motor switch 3 Press the pedal and form a
29. dle distance Gauge between Needles Gauge mark Right Feed Volume of Looper 3 2mm A 4 4 mm 4 0mm B 4 0 mm 4 8mm C 3 6 mm D E 5 6mm 3 2 mm 6 4mm 2 8 mm X To make the adjustment of the looper s right side feed volume easy use the looper timing gauge The timing gauge should be purchased as an extra item When it is needed contact the shop where you purchased the product or SunStar directly 26 9 How to Use Timing Gauge The timing gauge is marked with A B C D and E depending on needle distance When the looper is located on the furthest right side and the right needle is nested at corresponding needle distance V groove align the looper with the timing gauge and fasten the looper holder screw 10 Height of Needle Bar SunStar Figure 43 0 5 1 0m Figure 44 Figure 45 When the end tip of the looper passes the left needle center it must pass the needle groove at 0 5 1 0 mm off from the upper part In other words the height of the needle is set by the looper Using a driver unfasten the screw of the needle bar holder through a hole in the face plate and adjust the needle bar up and down to get the right needle height 11 Longitudinal Position of Needle and Looper yc In case where three needles are used When the tip
30. during the installation conveyance and maintenance of the machine Warning When you follow this indication injuries from the machine can be prevented Caution When you follow this indication error on the machine can be prevented 1 Transporting Those in charge of transporting the machine should have a full understanding of the machine machine The following indications should be followed when the machine is being transported More than 2 people must transport the machine To prevent accidents from occurring during transportation wipe off the oil on the machine compeletely Danger 2 Installing The machine may not work properly or breakdown if installed in certain places Install the machine machine where the following qualifications agree Remove the package and wrappings from the top Take special notice on the nails on the wooden boxes Dust and moisture stains and rusts the machine Install an airconditioner and clean the machine regularly Warnin Keep the machine out of the sun g p Leave sufficient space of more than 50cm behind and on the right and left side of the machine for repairing EXPLOSION HAZARDS Do not operate in explosive atmospheres To avoid explosion do not operate this machine in an explosive atomsphere including a place where large quantities of aerosol spray product are being used or where oxygen is being administered unless it has been specifically certified for such operation
31. esesseseseeseseesceeseesseseseesseresee 28 13 Needle and Needle Guard Front 0 c cccscsscsessescssescsscscssescesessesesseseseesesseseseseseeeesserenee 29 14 Height OF Feed Dogs ii ic RY ine ceed SY YRR E FYN YY E E ddd nes 29 15 Adjustment of needle and spreader 0 0 eeseseseseeeseeeeeseseceseceeeeeececeeeeecececeescaeeeeeeeaeaeeee 29 9 Automatic Thread TrimmMme f csccccssscscsenenscscnenenencnensenenenenenensnsnsenssenese 1 Operation inen EEE AFAL AY AGA DAU AG WYF Y 31 Py WALTON NGR LEN AGE AL EA AELE A ROI LE IR ON 33 3 Alf pressure Winne MAD ues ied T YW FRY SFFERAU 37 4 Installation of synchronizer sensor 0 eeseeseseseseseseeesessesesssnsseseasenssscseassneassnsneseasenees 40 5 Adjustment of automatic thread trimmer eee eseeeseeeseescseeeseeseseessessesesseseesesneseasey 41 6 Adjustment of thread tension release mechanism sesssseseseseseeseseseesrtssssessrtesrteserereesseess 46 7 Adpustment Of AIT WAPET nuu eck Gand WT WW eU FWG WA nio sie ade duds 49 8 Presser foot lifter mechanism cceceessesessescssescssesceccscsesesseseseesesscscseeseeseseeeeseesesseseneees 50 Machine Safety Regulations Safety instructions on this manual are defined as Danger Warning and Caution If you do not follow the instructoins physical injuries and machine damages might be occurred Danger This indication should be observed definitely If not there will be a danger
32. lenoid valve carries polarity check the connection between the cable and the connector The device will not work if the cords are plugged in incorrectly to opposite power Standard solenoid connector Knee lifting solenoid connector Green Figure 63 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Knee lifting solenoid connector 3 4 signal 2 Lower trimming Standard solenoid connector 2 signal 6 3 Air wiper operation Standard solenoid connector 3 signal 7 b For UT A device Press solenoid valve buttons to check how each device moves If the device does not work check the cords For the pneumatic solenoid valve carries polarity check the connection between the cable and the connector The device will not work if the cords are plugged in incorrectly to opposite power Standard solenoid connector Knee lifting solenoid connector Green Figure 64 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Knee lifting solenoid connector 3 4 signal 2 Lower trimming Standard solenoid connector 2 signal 6 34 SunStar c For ST C device Press solenoid valve buttons to check how each device moves If the
33. lowing hole 2 is 1 0 2 0 mm lower than the needle groove of the left io needle Figure 92 6 Fasten the screw 4 7 Control the amount of air with the speed controller To reduce the air turn the screw clockwise and to increase turn it counter clockwise Figure 93 i Caution i 1 Keep the air level to the minimum as long as the machine functions well i 2 If air gets out from the needle front the needle thread may slip off of the needle hole Make sure that the wiper operates to the backside of the needle 49 Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode E iia AE AAR NF FD FY Y FFO FF Y A A aR o R FD E O FD A 8 Presser foot lifter mechanism 1 Unfasten the nut 2 When the knee lifting air cylinder rod is at the lowest point turn the knuckle for knee lifting air cylinder to bring up the presser foot by 5mm 7mm Figure 94 50
34. ly when the needle is at the highest point Otherwise i i parts can be damaged When the looper is located on the furthest left side move the moving mes to the left Adjust the tip of the moving mes to make it pass 14mm away 5 from the looper on the right side above the looper s ridge Loosen the screw to make the adjustment Figure 75 41 Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 3 Adjustment of Moving Mes and Needle a Loosen the nuts b Move the moving mes to the left in full c Use the trimming connecting rod to adjust the distance between the hook for the needle thread and the left needle at 2 5 3 0mm a To widen the distance turn the trimming connecting rod in the W direction To narrow down the distance turn the trimming connecting rod in the N direction d Tightly fasten the nuts Figure 76 Tightly fasten the nuts and confirm whether the trimming device connecting rod and the moving mes bodyG are operating smoothly Figure 78 SunStar Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 4 Adjustment of Moving Mes and Looper When the moving mes is in motion the front face of the looper should be 0 1 0 3mm distant fr
35. n When differential ratio needs to be adjusted during sewing connect the lever to the chain To adjust the maximum or minimum limits of the differential feed lever use the differential feed lever stoppers 2ZEA x Depending on the stitch length the scope of differential ratios is different Please see the table below Stitch Length mm Max Normal Differential Ratio Max Reverse Differential Ratio 3 6 1 11 1 0 7 2 5 1 1 6 1 0 7 2 0 1 1 8 1 0 7 1 4 1 2 1 0 7 21 9 Needle Cooling Device and Oil Supply Device for Needle Thread YI SH Yn Ui Ga i a i Su a I ATTENTION GO HR SN eee CAN h Warning Be sure to turn the power switch off before work High speed sewing generates heat as a result of frictions between the needle and sewing materials Heat may result in thread breaks skipped stitches or enlarged stitch holes when used with polyester threads or fabrics To prevent such troubles this sewing machine comes attached with the needle cooling device and needle thread lubricating device as a standard option The silicon type oil is the most efficient Note Open the silicon oil supply tank cap of the needle cooling device and the needle thread oil supply tank cover of the needle thread oil supply device to check the oil volume When oil is insufficient supply more oil If there is no need for silicon due to specific sewing Figure 27 conditions remove the
36. ndard solenoid connector 12 signal 4 35 b For UT A device Press solenoid valve buttons to check how each device moves If the device does not work check the cords For the pneumatic solenoid valve carries polarity check the connection between the cable and the connector The device will not work if the cords are plugged in incorrectly to opposite power oo o AJON Standard solenoid connector Figure 67 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Standard solenoid connector 2 10 signal 2 Lower trimming Standard solenoid connector 11 signal 3 c For ST C device Press solenoid valve buttons to check how each device moves If the device does not work check the cords For the pneumatic solenoid valve carries polarity check the connection between the cable and the connector The device will not work if the cords are plugged in incorrectly to opposite power CN OO Ol AJON Standard solenoid connector Figure 68 Solenoid valve number Solenoid valve application Connector type Pin number 1 Presser foot lifting Standard solenoid connector 2 10 signal 2 Lower trimming Standard solenoid connector 11 signal 3 3 Top cover threa
37. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnnm nnna 11 TyInstallation oF able YL eu GU UG nE iaai 11 2 Installation of motor and belt sessisisisisinisissriiseotisiieniseseiesrinenineritonieur deei siie III 13 3 Adjustment Of belt tension ee Wd GAF FFF Fo EF 13 4 Attacliment of Belt COVEI iii set isie aaaea YDY FY DDYF A ieies 13 5 Installing cover for needle bar thread guide eee eee eeeeeeeseeeseesesestesseeneneseeeensneneaees 14 6 Installation of thread guide plateserien ienesis 14 5 Sewing speed and rotating direction of pulley 14 6 Lubrication MH 15 1 Eubricaung cilia an Y NN Y Y eE O GYN eE ET FO EENE EENES TENUE C SEEPS 15 2 SUP PMY MS oll ee ed Y die YY Y GU I GG GAF OA 15 3 Oil Gaugeand Oil Window eio GYG YG WY YY 15 4 Oil chanpe au aw GAU GRUG GG GG OG 16 5 Cleaning th amp oil filter seserian e aaie NF lA dydh SF 16 7 Standard adjustments of the sewing machine 9 eeu 17 TING OCIS USC anner Gu eld 17 2 Installation of needle cece cc ccccscsscsscsscsscsecsecsecsecsecsecsscsecsscsecsesscsessecsessesssssesssssassasensensenees 17 2 Enread mo aa O ie dorset YR E Y YG GU OU 18 SunStar 4 Adjustment of thread tensiOn cesses essesessseseesesesesnssesesssnsneseasensusseseassnssestsseseasenees 18 5 Adjustment of presser foot teMSiON 0 eee ees estesesesessesesssnsseseasenseescaeessssesesseseassnsneseaees 19 6 Adjustment of presser TOOL uu sissies WU FF FA R
38. om the rear face of the clamp spring If the distance is inappropriate the fixed mes might be bent If it happens please straighten it out Caution When adjusting the distance don t make any i i changes in the height of the looper Any change in the height of the looper might cause i stitch skips i Figure 79 5 Adjustment of Moving Mes Fixed Mes and Clamp Spring To make the tip of the hook for needle thread pass by the rim amp I of the fixed mes adjust the tip of the hook for looper thread 6 to pass by the rim of the clamp spring And adjust the inner side of the moving mes to pass by the rim of the clamp spring Loosen the screw for adjustment Figure 80 6 Overlapping of Moving Mes and Fixed Mes The fixed mes D and the moving mes overlap around 0 2 0 5mm When the moving mes moves to the right in full loosen the screw 3 and move the hexagonal stopper plate 2 for overlap adjustment Figure 81 43 Warning i Before adjustments always turn off the motor switch and check to make sure that the motor is in stop mode 7 Adjustment of Remaining Thread After Sewing Is Finished When the trimming device is in motion the moving mes O moves to the left and the fixed mes body moves to the furthest left of the moving mes return spring When the distance between the tip of the clamp spring 2
39. r bar bushing 6 and the front face of the presser bar collar at 0 2mm and fasten the screw If there is no the spreader set the distance at 8 0mm In this case the presser bar collar is not used stitch plate Figure 38 Figure 39 25 6 Relation between Needle and Needle Plate When the adjustment of the needle bar height is completed needles should be accurately positioned in line following the solid line as in the right figure Make sure that the needles are not placed following the dotted line Figure 40 7 Fixing Angle and Height of Looper Insert the looper into the end of the looper holder and fasten the looper fixing screw 2 Then the height and the fixing angle 3 are determined See Fig 41 Figure 41 8 Movement of Looper to the Right When the needle bar is located at the lowest position the looper is on the furthest right side The right side position of the looper distance between the tip of the looper and the middle part of the needle D depends on the needle distance Adjust the right feed volume of the looper based on the table below Adjustment can be made by loosening the fixing screw for the looper holder x Without exception the distance between the center of the needle bar and the tip of the looper is 6mm regardless of Figure 42 nee
40. the upper line of the oil gauge Figure 11 Figure 12 Caution i I Too little oil may cause mechanical breakdowns and too much may degrade the quality of sewing materials Be sure to i adjust the amount of oil appropriately i ra aaa a a m a OL R a a eee a aA A A LEL AIL UU AA neato A E eet A A OD A AAAA 3 Oil Gauge and Oil Window Always check the oil gauge before starting the machine Supply oil if the remaining oil comes short of the lower line of the gauge When operating the machine check the flow of the oil through oil window 15 4 Oil change To ensure durability of the sewing machine be sure to change oil after 250 hours of initial operation D Separate the V belt from the motor pulley and then separate the sewing machine from the table Loosen the oil release screw to release the lubricant inside Make sure that the V belt is not smeared by oil 9 Release the lubricant and tightly fasten the oil release screw See 2 Supplying oil to supply new oil Figure 13 5 Cleaning the oil filter Oil will not supply smoothly if dust gets built up in oil filter Check the oil filter once every six months Check the oil filter through the oil window if there is no or only little amount of oil being supplied Before checking the oil filter remove the oil filter cover Clean dust build ups inside the oil filter
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