User's Manual
Contents
1. knife knife and the hook do not match No Symptom Checkpoints Root cause Corrective action ven sean Lt Needle is inserted into wrong position Reinsert the needle correctly Needle Needle is bent Change the needle Bad timing of feed dog Adjust the timing of feed dog T Neede Breaks asconcing level of Bad timing of needle and hook Adjust the timing of needle and hook needle bar Height of needle Bad timing of needle and hook Adjust the timing of needle and hook Gap between needle Bad timing of needle and hook Adjust the timing of needle and hook and hook Threading method Wrong threading Thread the needle correctly Needle Bent needle or broken needle tip Change the needle shee andhaigitot Needle inserted in the wrong position Insert the needle correctly 2 Th k road breaks Upper thread tension Too tight upper thread tension Reduce tension of upper thread Lower thread tension Too loose lower thread tension Reduce tension of lower thread Working capacity of X take up lever spring Loose upper thread Adjust take up lever spring Direction and height of Needle is inserted into wrong Reinsert the needle correctly and needle bar direction push in to its highest level Needle Needle is bent Change the needle Threading Wrong direction Insert the thread in the right way Ascending level of The timing between the needle and Adjust the timing between the needle needle bar hook is bad and hook T The timing betwee2. N Caution power is switched off due to inertia gt Turn off the power switch when routing the upper thread If the operator mistakenly steps on the pedal while switched on the machine will start e automatically and can cause physical injuries gt When using the clutch motor be aware that the motor will continue to rotate for a while after the Start to work on the sewing machine only after the motor has come to a complete stop 7 Routing the upper thread Place the thread take up lever to the highest position and insert the upper thread in the order of marked number as can be seen in figure24 8 Adjusting the upper thread A Thread adjustment As can be seen in figure 25 turning the tension adjustment nut of the thread adjusting device clockwise makes the lower thread tension stronger and counterclockwise makes it weaker Adjust the thread tension responding to the situation because adjustment of the thread tension changes according to sewing conditions such as the sewing material used thread and stitch length B Adjusting the tension of the thread take up spring As can be seen in figure 25 insert the driver into the groove of the thread adjusting device 2 Turn clockwise to make the spring tension stronger and counter clockwise to make it weaker C Auxiliary thread adjustment As can be seen in figure 26 turning the thread tension adjustment nut 1 clockwise makes the thread length af
3. Turning the base 5 clockwise makes the upper side of the feed dog up Turning it counterclockwise makes the upper part down See figure 32 b As can be seen in picture B of figure 32 it is general to make the feed dog base covered sign set in parallel to the vertical roller crank But to prevent parka ring adjust the slope to higher direction as in picture 4 of figure32 To reduce the delay of cloth adjust the slope to lower direction as in picture C of figure 32 c Check the height of feed dog 3 because the height of it changes after the adjustment of feed dog 3 Front Back Front is up Feed dog eS Adjusted Pee _f _ Frontis down Figure 32 13 Adjusting the trimming device 22 A Adjusting the trimmer driving part The part of trimmer cam is seen in figure 33 Trimming solenoid Trimming solenoid base Fixed knife Thread cover Movable knife Trimming lever Trimming final Slide arm Clutch Stopper Stopper lever lever 1 in that case run the machine at the fixed trimming space from the lower upper side of needle bar The trimming cam attached to the lower part runs the machine Therefore in adjustment time if the machine is run with trimming solenoid working movable knife and needle conflict So B Adjusting moveable knife and fixed knife a As can be seen in figure 34 it is normal that the position of the fixed blade is at the center of fi
4. by loosening the pulley s clamp screw 1 on the side with N U carved signs and moving it sideways Adjust the down stop position of the needle such that the needle is on the point of moving up when the needle bar is at the lowest point This adjustment can be made by loosening the pulley s clamp screw 2 on the side with N D carved signs and moving it sideways See Figure 13 amp 14 Up stop Down stop Figure 13 Figure 14 B For 470 motor external location detectors Turn the pulley manually to position the needle bar at the lowest point about to move back up Then loosen the fixed screws on the film as in Fig 11 and align the DOWN film with the film adjustment baseline and the sensor housing baseline as in Fig 15 amp 16 Tighten the fixed screws just enough so that the film does not rotate In the same way place the thread take up lever at the highest point then loosen the fixed screws again and adjust the film as in shown the figure Be careful that the DOWN film A that was tightened before does not move when adjusting the UP film Film Adjusting Arrow 4 Setting Area 9 qu Sensor Baseline Film Adjusting Base Sensor Base I Setting the film when Setting the film when the the needle is in a up thread take up lever is at stop position the highest point Figure 15 Figure 16 Figure 16 enlarges the film position As can be seen in
5. flow Turning the oil adjusting screw 1 clockwise increases the oil flow and counter clockwise decreases the oil flow Figure 21 3 10mm Oil flow test paper Oil fan Sprayed oil Sprayed oil 0 5mm l 1mm Minimum standard Maximum standard Figure 22 17 N Caution gt Turn off the power when adjusting the lower thread tension If the operator mistakenly steps on the pedal the machine will start automatically and can E cause physical injuries gt When using the clutch motor be aware that the motor will continue to rotate for a while after the power is switched off due to inertia Start to work only after the motor has come to a complete stop 6 Inserting lower thread and adjusting thread tension Figure 23 A Put the bobbin 2 into the bobbin case T And insert the thread into the thread groove 3 and then wind it from the back to the front of the tension adjusting plate spring 4 Turning the tension adjustment nut 5 of the hook clockwise makes the lower thread tension stronger and counterclockwise makes it weaker When hold the end of thread make sure that the bobbin case 1 should drop by gravity in order to adjust the lower thread tension See Figure 23 B Removing bobbin case With hand of the bobbin case 6 insert the bobbin case in to hook Pull the hand 6 to remove the case the bobbin 2 is removed when the hand is off See Figure 23
6. or SHELL s Tellus C10 C If the oil in use is down to the LOW mark fill in to HIGH immediately d Once every two weeks is deemed the appropriate interval for oil refills Figure 4 11 4 Adjustment of belt tension After installing the motor unfasten the fixing units D 2 up and down and tension will be created to the belt 4 due to motor 3 failing by gravity And fasten the fixing nut 1 and then the fixing nut 2 tightly See Figure 5 5 Installation of the program unit A Installation of Installation of automatic knee lifting solenoid a Fix the bracket 2 on to the program unit Q using 4 fixing nuts 3 b Use 2 fixing bolts 4 and 3 fixing nuts to fix the bracket tightly B Installation of manual knee lifter a Fix the bracket 2 on to the program unit using 4 fixing nuts 3 b Then use 3 fixing bolts of the back cover to tightly fix See Figure 7 Figure 5 Figure 6 Figure 7 6 Installation of the belt cover A Attach belt cover AQ onto the machine body using fixing nut 2 and washer If the machine is laid down on its back it will be easy to assemble See Figure 8 B Attach belt cover B 4 onto the table Make sure that the belt properly operates without interference from the belt cover B 7 Location detector assembling and its control method A Installation of
7. uuuu uuu uu uR uuu uuR USERS RRRRRRSERRUR 16 1 Inserting the needle anes peoono oorr pp mem en Opere Pd op D RD ORE 16 2 Adjusting needle DAL eiit pete eret e te Ree dU etate eee rebates areis bre oerte dn 16 3 Adjusting ming of needle atid hook ee e Re ves ues ves en ven es hes Re SER Etre teterere ie teret tere e PR eats 16 4 Adjusting oil flow in thread take up essent nentntntntn tete tete tenete tete eiai 17 5 Adjusting oil flow ot the hook uestrae tiere tirones ipte adeant ebore ette ess toner esie Dep 17 6 Inserting lower thread and adjusting thread tension sse 18 7 Routing the upper thread isis ssi eicere tette serere re teen ede ede endet EL eU EE EAE a EE EAEAN 19 S Adjusting the upper thread csset tee tete tete pete dete epe eter CC PU Eit Cert Pct 19 9 Adjusting the height and pressure of the presser foot seen 20 10 Adjusting automatic knee lifter optional 2 5 2 teret tetra terni terret bertus 2 IT AC justine sitcblenpth socio a ene ete Eee E EE E EE R inii 21 12 Adjusting the height and slope of feed dog seen tenente tenente dsrs 21 13 Adjusting the trimming CEVICE i uso serrer treat eneve petite t errantes epe e eon pes are ER Dg sees ebbe deua 22 HW Adjusting KIS PET SION sey onde race iro ROUEN UEU EEES separa snyeaneaisesenenserniiee 25 15 Exchanging movable ki tfe terere tetrere terre
8. B1x 20 23 Manual 5 5mm 2 Servo motor MODEL VOLT WATT HERTZ SC55 1A ONE PFAHSE 110V 550W 50 60 Hz SC55 2A ONE PFAHSE 220V 550W 50 60 Hz SC55 3A THREE PHASE 220V 550W 50 60 Hz 3 470 motor PMA70 MODEL PHASE HERZ VOLT 1 14 LI 1 110V 33 6 60s 2 220V PM470 3 3 9 aie 3 380V 1 14 ae 4 110V 220V 3 3 g gt 3 ae 5 220V 380V 4 470 motor control PC470 A 001 MODEL VOLT MODEL SUB CLASS PC470 1 110V A o 2 220V 5 Peripheral automation device optional Optional device Model Usage A solenoid operating structure where the presser foot gets lifted AUTO KNEE LIFTING automatically AM pedal reverse gear stage 1 operation SYSTEM SPF 5 max stroke 10 3mm input voltage DC 24V DC 24 46V induction at 10 3mm stroke 26kg A counting device which indicates the completed quantity on the PRODUCTION COUNTER SCOUN 1 program unit panel including added subtracted corrected or remaining quantity along with other performance rates A device that senses the edge or thickness of the sewing material SEDG 1 to stop the machine without manual pedaling Available in two MATERIAL EDGE SENSOR SEDG 2 types SEDG 1 for edge sensing type and SEDG 2 for thickness sensing type 5 An essential device when one person is operating multiple sewing PDL 1 j i i immi S
9. TANDING PEDAL machines Has different pedals for acceleration thread trimming SPDL 2 presser foot and ascending pedal Types consist of SPDL 1 EDPL 1 for fixed speed and SPDL 2 EDPL 2 for variable speed S Servo Motor E 470 Motor 2 Installation N Caution gt Installation of the machine should be performed by a trained engineer 9 gt Any electrical wiring must be performed by a qualified technician or agent gt The machine weighs over 32kg At least 2 persons should carry out the installing work 2 gt Plug in after the installation is complete If the operator mistakenly steps down on the pedal with the plug in the machine will start automatically and can cause physical injuries AN gt Connect the ground earth wire An unstable connection may result in an electric shock or a malfunction gt Place the belt cover on top of the machine D gt Use both hands when bending the machine backwards or returning it to the normal position Using only one hand can lead to severe hand injuries the weight of the machine 1 Installation of machine head x Insert two machine head hinges 1 into the bed holes After aligning it with the rubber hinge 2 stand the machine on the rubber cushion 3 that is in the direction of the user Figure 1 2 Installation of automatic knee lifting Automatic knee lifting solenoid solenoid and power switch b
10. User s Manual KM 250BL Series High speed one needle sewing machine with automatic thread trimmer 1 unt 1 For proper use of the machine thoroughly read this manual before use 2 Keep this manual in a safe place for future reference in case the machine breaks down SUNSTAR MACHINERY CO LTD n E 050509 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 Table of contents Safety rules for machine ccsccssseesscessesscescuescusuenssessssssoescueseus sens nnmnnn nnmnnn nnan 4 1 Specification ssccssscssscesceesceescenseusssusssuescueseug sung senesuneseesseesuesooscugseugsuusssesssosssessesensseass 8 1 Automatic thread trimming sewing machine ssseseeee
11. amp screw 5 and clog the rubber cover 4 As can be seen in figure 20 make the lower side of needle bar bushing 6 meet the carved sign of hook marked in the needle bar and then loosen three hook fixing screws 2 Turn the loose hook so that the hook edge 3 meets the needle center When this is done adjust the distance between the hook edge 3 and the inner side of the needle groove to 0 05 0 1mm Then tighten three fixing screws 2 again Figure 20 4 Adjusting oil flow in the thread take up As in the figure 21 the more the point 2 of the control plate of oil flowd goes close to the center of hole of thread take up crank shaft the more oil comes On the other hand the more the point goes close to the corner 5 of the link cam washer the less oil comes And when the point goes past the corner of the link cam washer the oil does not come out 5 Adjusting oil flow of the hook A Check oil flow a After 3 minute idle operation of the machine put the paper at the place as in figure 22 And rotate the machine for a 5 second The amount of oil can be checked by the oil sprayed on the paper b Implement the test three times to find out whether it is short or abundant The appropriate flow is one that does not exceed or lack based on the flow in the picture If oil flow is not enough the hook will not operate properly If oil flow is too much the cloth may be contaminated by oil B Adjusting oil
12. ding changing bobbin and needle cleaning etc switch off lt main switch F HSH MAA go NES OAS 4 Hel HETH AAMOE HEA FMA AMS PUA A CAUTION T a Hazardous voltage will cause injury Be sure to wait at least 360 seconds before opening this cover after turn off main switch and unplug a power cord TY azo Slot BAS T e2 AWS 8 We Has Weld B8 418 Eu LAY 36027 7 C 2l amp OFAAS V 1 7 Content of pautan CAUTION FN o3 m Do not operate without finger guard and safety devices Before threading changing bobbin and needle cleaning Caution etc switch off main switch eJZ SSHHet OMA 830 mH DAIS amp Bl HigulsAILE STAKE BIEAI SAHOO ASAE 7I EMAL CAUTION a Hazardous voltage will cause injury Be sure to wait at least 360 seconds before opening this cover after turn off main switch and unplug a power cord Df HRA AH AMS yea aug SWE HAUS Hren AH mEHJE 0 LHA 36022 JICH F ASAS 1 Specification 1 Automatic thread trimming sewing machine KM 250BL Item Usage Max speed Max stitch Length Needle Presser Foot Height 5 Max 3500spm Manual 5 5mm KM 250BL Heavy Material Average 3000spm 0 7mm DB 1 x 20 23 Knee T m Max 3500spm Manual 5 5mm KM 250BL 7S Heavy Material Average 3000spm 0 7mm DB 1 x 420 423 Knee 14mm KM 250BL 7N Heavy Material average So00spm 0 7mm D
13. ed to avoid the explosion D Because of the peculiarity of the machine any illuminators are not equipped So users should install the lighting apparatus around the working area Note The details about the installment of the machine are described in No 2 Installation 1 3 Troubleshooting In need of troubleshooting it should be done by the trained A S engineer of our company Ahead of cleaning and repair be sure to shut off the power supply And wait for about 4 minutes till the machine discharges completely Danger b Even a part or all of the machine should not be modified without any consultation with our company In case of repair you should change the damaged part into the standard article of our company After repair please put again the safety cover disjointed while repairing 1 4 Machine Operation Warning KM 250BL series are manufactured for industry use to sew textiles and other similar material In case of running the machine users should observe the following things 8 Ahead of operating the machine please read the manual and understand fully the details on its operation Don t forget to put on the garment suited for the safe work Keep your hands or a part of the body away from the running part of the machine like a needle hook thread take up spring and pulley etc Don t remove any kind of cover for safety while running the machine Be sure to connect the earthed line D Bef
14. eeeeenene trente tette tenente ranit eisie sase 8 2V SCVO 1110 RETE 8 3 AO MOE troppe OO pO en rr E i ar E T Rr ri rec R DOT OC 8 4 470 motor coritrol tee dede aa e RR HP E QU ERE eR CN bee rete Cd ut aS 9 5 Peripheral automation device optional esent tnter nene 9 PMAn 10 1 Installation OF machine head erect rio terror reri tee rr ri e davedosesesvestatvixesssteivisieteivasscivieds 10 2 Installation of automatic knee lifting solenoid and power switch box seen 10 SLUDbFICAEtOID 5a d ade eet tete eee e eei eere re SRT ETE o Adr dae ata 11 A Adjustment Of belt tenslOfl sais esis ooo trt rr tre o eir tpe re re re PO D ORO REO OE 12 5 Installation of the program unt ee ciere rere re rete tere here re ere eU EE ete 12 6 Installation of The belt COVER dre eitis bees EN IEEE UE CR CURIE E EOD EON VE Even et Les vase PEL EPIS 13 7 Location detector assembling and its control method sse 13 8 Adjustment of locati n detectOr irei e rero ret ree I XR b n Poen rea de castes eu 14 9 Check tor the stop position of the machine siese terere ete e reri oen verbere de Saa 15 10 Reyerse button uncos aan E RD SES HERR ERR E HERBERT EE IRE EON THREE 15 3 Adjustment of the Machine 1 ose oe rera n nannnnn sunu uuuuuu uuu
15. en two wiper shaft clamp screws 1 of wiper base and push the link 2 When is done adjust wiper shaft 3 to make 2mm clearance between wiper and needle and then tighten the wiper shaft clamp screw After that loosen the wiper clamp screw 4 to make clearance between the lower wiper and the needle end 2mm Finally fasten the wiper clamp screw 4 tightly See figure 48 49 i ou Figure 48 18 Adjusting feed cam Figure 49 A To adjust the timing of feed dog and needle move the feed cam 1 up and down It is normal that when manual turn of pulley drops feed dog and the upper feed dog adhere to the upper needle plate attach the lower hole of needle to the upper feed dog a To enhance the needle tightening move feed dog slightly slower than needle To that end loosen feed cam clamp screw 2 turn the feed cam to the opposite direction and then fasten the clamp screw 2 b To prevent delay of cloth move feed dog slightly faster than needle To that end loosen feed cam clamp screw 2 turn the feed cam to the direction and then fasten the clamp screw 2 Needle Needle plate Feed dog Normal TRAST Feed dog Fast wa Feed dog Slow KM 250 Series Figure 50 27 1 Sewing machine troubleshooting 4 Causes of Trouble and Troubleshooting
16. ers must perform troubleshooting or inspection of the machine gt For electrical repair or inspection consult with qualified technicians or agent 9 Adjusting the height and pressure of the presser foot A As can be seen in figure 28 lift the rubber cover 2 drop the presser foot 3 on the needle plate and loosen the presser fastening screw 4 to adjust the height of the presser bar If the presser bar goes up the presser foot 3 will be low If the presser bar goes down the presser foot will be high Make the distance between the upper side of the needle plate and the lower side of the presser foot 5 5mm with the presser foot lifter and then tightly fasten the bracket fastening screw B Adjusting the tension of the presser foot As can be seen in figure 28 turning the pressure adjustment screw 6 clockwise increases the presser foot tension and Upper part of needle plate turning it counterclockwise makes it weaker After adjusting make sure to tighten the fixing nut Figure 28 20 10 Adjusting automatic knee lifter optional A Automatic knee lifter is attached to the machine upon shipment When automatic knee lifter goes the ascending amount of the presser foot is controlled by the crank shaft of automatic knee lifting solenoid 1 First loosen the solenoid cover fixing screw 3 and lift solenoid cover 2 The ascending amount of the presser foot falls when the fastening screw of cra
17. figure 16 set the end of film adjusting arrow to sensor base 9 Check for the stop position of the machine Check for the machine stop position after moving the needle up and down by pushing the reverse button See whether the carved sign on the arm and the white carved sign on the pulley are aligned when the needle is in an up position If not adjustment to the photo film of the location detector or to the location of the magnetic holder will be necessary since there may be problems with the trimming In other words the needle s up stop position should be identical with the stop position of the needle bar after the trimming operation which would signify that there is nothing wrong with the operation timing of the trimmer See Figure 17 Refer to the explanation about the Adjustment of Location Detector on page 13 10 Explanation of reverse button function Pressing the back tack button or reverse button during forward sewing will start reverse sewing immediately When you stop the machine and restart it by stepping down on the pedal with the reverse button already pressed down you can perform reverse sewing from the beginning When the machine is in a stop mode you can change the up down position of the needle bar by pressing the reverse button Lightly pressing the button once when the needle is in a down stop position will stop the needle bar in a high position Pressing the reverse button twice within less than a second when it i
18. his symbol means a must for safety SunStar 1 1 Machine mobilization Danger Only personnel with a full understanding of the safety rules should move the machines The following directions must be observed when delivering the machines At least two persons should work together In case the machine should be transported please wipe the oil covered on the machine to prevent accidents 1 2 Machine Because physical damage such as the functional obstacles and breakdowns are likely to occur according to the environment in which the machine is being installed Installation x i Therefore the following preconditions should be fulfilled 8 Please keep the order from top to bottom when unpacking the package Especially mind that the nail on the boxes Caution D Because machines are apt to be contaminated and corroded by dust and moisture you should install the climate controller and should clean the machines regularly O Keep the machines out of the direct rays of the sun Keep both sides and the backside of the machines off at least 50cm from the wall to secure enough space to repair Don t run the machine near the places with the dangers of explosion Don t run the machine near the places with the dangers of explosion including the places where the spraying product like aerosol are used in large quantities or oxygen are dealt with unless the exact actions conceming the operation are guarante
19. ink iG 0 5mm Trimming crant E Adjusting trimming cam a Manually turn pulley 1 to align with red carved sign 2 and arm carved sign 3 b With the trimming solenoid running on turn the trimming cam clockwise And fix the cam when is attached to the roller See figure 39 c When the trimming cam crank turns back after stopping the operation trimming solenoid the normal edge of cam roller is 0 5 1mm See figure 39 24 Figure 37 White point Figure 38 Figure 39 The position of trimming cam crank before its operation is normally like that in figure 40 When the position of roller changes adjust with moving the stopper and follow the above a b F Adjusting knife position a Adjusting movable and fixed knife As can be seen in figure 41 adjust the distance of movable and fixed knifes from the center of needle to be 7 5 mm and 5mm respectively b Adjusting the stroke of movable knife D With the solenoid running on operate the machine And then movable knife rotate by the trimming cam When stroke of the knife reaches the highest it is normal the blade of movable knife moves 1 5 2mm from the edge of fixed knife Adjust with moving the trimming lever 14 Adjusting knife tension A As can be seen in figure 43 it is normal movable and fixed knifes touch B When the trimming capacity is low due to use of thick th
20. location detector a Installing on the servo motor in built location detector A sensor of location detector is attached to the back side of the arm The appropriate clearance between the location detector and the pulley is 0 5mm See Figure 10 Figure 8 Figure 9 Figure 10 13 8 B Installation of 470 MOTOR Assemble parts in the order of marked number as can be seen in figurell Then following the figure 12 make adjustments to place the photo film at the center of the photo interrupter by moving the shaft to the right and left Then tighten the 2 fixing nuts using the hexagonal wrench Note a As can be seen on figure 12 make sure that the marks DOWN and UP face 4 the front when looking from the pulley side b Film adjustment is completed upon shipment Pulley L wrench 2 of synchro shaft Fixing nuts Synchro shaft Photo flim Photo interrupt Speed sensor flim Fixing washer Fixing bushing Fixing nuts Location Clearance adjusting bushing detector Fixing shaft washer COVER PCB holder Figure 11 Figure 12 Adjustment of location detector A For in built location detector Adjust the up stop position of the needle such that the white carved sign on the pulley 3 is in a straight line with the carved sign on the arm 4 when the needle has stopped in the air That adjustment can be made
21. n the needle and Adjust the timing between the needle Height of needle bar hook is bad and hook Sewing is m 3 skipped Gap between the Needle and hook head are too far Adjust the timing between the needle needle and the hook apart and hook The length of the remaining upper thread is too short Bobbin case Idle When trimming bobbin runs idly So f l l Change Idle operation prevention operation prevention the upper thread is too short to go sorin spring up pring f It is not strong to raise the lower Control the stroke of Thread take up Thread take up spring thread spring 2 Upper thread Too tight upper thread tension Reduce the tension of upper thread does not wind Too weak lower thread tension Enhance the tension of lower thread 5 Lower thread Too weak upper thread tension Enhance the tension of upper thread does not wind Too tight lower thread tension Reduce the tension of lower thread t oA Check tension of fixed The tension between the movable Match the tension between the 6 Trimming miss movable knife and the hook 28 No Symptom Checkpoints Root cause Corrective action Blade side of movable Scratch and abrasion of movable i Replace movable knife or fixed knife and fixed knives and fixed knives 6 Trimming miss Direction of needle Needle is Insorlod into wrang Insert needle in to right place direction Check trimming cam Lack of the meeting movable and Respond to the stroke
22. nk shaft of automatic knee lifting solenoid 4 is loosened the solenoid shaft 5 is moved to the left and the fixing screw is fastened And it grows when the shaft is moved to the right and then the fastening screw is fastened After the adjustment assemble the cover again Upon the shipment of machine the ascending amount of the presser foot is fixed at 13mm when automatic knee lifter works Figure 29 11 Adjusting stitch length As can be seen in figure 30 the number marked in the stitch length adjusting dial 1 indicates the stitch width by mm By moving left or right set to the desired number Turning it to the right decreases the number of stitch width and turning to the left increases the number Figure 30 12 Adjusting the height and slope of feed dog A Adjusting feed dog height Loosen the crank clamp screw 2 and move the crank 1 to adjust the height of feed dog To adjust feed dog height set the dial at the highest number And when feed dog goes to the highest point be aware that the height from the top of needle plate to the top of feed dog should be 1 1 2mm in the case of material sewing See Figure 31 1 1 2mm Heavy materials Feed dog zs EHI Figure 31 21 B Adjusting slope a First loosen the feed dog base clamp screw 6 of the vertical roller crank 4 and move the feed dog base 5 up and down with a driver to adjust the slope
23. of movable and exchange knifes fixed knifes and fixed knifes Tension of the upper thread is strong Adjust Tension of the upper thread Upper thread 7 falls out when Needle is too thick for thread Correct the thickness of the needle starting to sew Check for Needle top stop position The position of Needle top and lower Find out needle top stop position 29
24. ore opening the electric box such as a control box be sure to shut off the power supply and make sure that the power switch should be put on off When threading the needle or before checking after sewing be sure to stop the machine D Don t switch on the power supply with the foot on the pedal Don t run the machine when the cooling fan are not running Be sure to clean the air filter in the control box once a week If possible keep off from the strong electronic wave like a high frequency welding machine Always start the machine with safety covers in place since fingers or hands could be injured or cut off by the belt Turn off the power switch during check ups or adjustments Warning 1 5 Safety Device Warning 8 Safety Label Suggestions while running the machine are stated Thread take up spring cover the device to prevent the human body from touching the thread take up spring Belt cover the device to prevent hands feet and clothing from getting jammed by the belt Finger guard the device to prevent fingers from contacting the needle SunStar 1 6 Position of Caution mark is attached to the machine for safety In case of starting to run the Caution Mark machine read the directions of Caution mark carefully CAUTION Position of Caution Mark au Do not operate without finger guard and safety devices Before threa
25. ox OS A KM 250BL 7N m 292 Power switch box A Installation c i r 7 o a Attach the power switch box to the area of motor under i SS M the table Su S ii b As can be seen in Figure2 attach connecter from the solenoid to controller box through the power switch box See connecter part of controller box in pagell B Controller box Figure 2 N Caution gt Plug in only after oil supply is finished If the operator mistakenly steps on the pedal with the plug in the machine will start automatically and can cause severe injuries VY gt When handling lubricants wear protective glasses or gloves to avoid contact with your eyes or skin Inflammation may be caused otherwise Never drink lubricants since they can cause vomiting or diarrhea Keep out of the reach of children gt Operate the machine only after adding oil when the machine is being used for the first time or aD has been left unused for a long time 3 Lubrication A Attach the magnetic chip remover Attach the magnetic chip remover in the accessory box to the oil pump in the bed See Figure 3 XX Do not use the magnet for other purposes If the machine runs without the magnet it will cause trouble or do damage durability Figure 3 B Lubricating the oil fan a Hill the lubricant up to the HIGH mark See Figure 4 b The lubricant must be SUNSTAR s oil provided exclusively for industrial sewing machines
26. re terere terere terere terre Ede 26 16 Exchanging fixed knife ette ttt treten tetuer t rU eer ON drei doro re rie E Eee FREE TRES 26 TF Adgusting WIDE o oon emm onn Dr er rri er ho cinis rrt e er p EO DEDE HET AREE RE aD 27 18 Adjusting f ed Caf aeter shesensnsousvedsosoueruedevenstyrunsssouscdsuavessuernspeoueededeveveusnerubitanenoeerstacnnsenseesbenseoesbsedaubs 27 4 Causes of trouble and troubleshooting csssesssesssesssecssecssucssecssecesussscessuossussuassecsaes 28 1 Sewing machine troubleshooting esisiini n snarere ENEE ten tete te entente tentent tenente eene 28 Safety Rules for Machine Safety labels in the manual are categorized into danger warning and caution Failure to follow the safety rules may result in physical injuries or mechanical damages The safety labels and symbols are defined as follows The meaning of the safety labels N Danger Instructions here shall be observed strictly Otherwise the user will be killed or suffer severe physical injuries N Waring Instructions here must be observed or the user could suffer fatal or severe physical injuries N Caution Instructions here should be observed or the user could face physical injuries or mechanical damages The meaning of symbols This symbol means a must not This symbol means that an electric shock may be caused if the instruction is not followed properly T
27. read it is effective to strengthen fixed knife tension Figure 40 Figure 41 Figure 42 Movable knife Fixed knife Figure 43 25 C As can be seen in figure 44 loosen tension adjusting nut of fixes knife with wrench box and then adjust with tension adjusting screw After adjusting tighten the nut using wrench box 15 Exchanging movable knife Manually turn pulley to place the thread at the highest and remove the needle plate Then as in the figure 45 loosen two fixing screws of the knife To assemble follow the reverse order of disassembling 16 Exchanging fixed knife 26 A As can be seen in figure 46 loosen hook holder clamp screw and then pull out washer and hook holder When is done disassemble fixed knife clamp screw To assemble follow the reverse order of disassembling B When the thread does not get trimmed or if the trimmed section of the thread is sloppy please check the edge condition of the fixed knife If the edge of the knife is too dull sharpen the edge using oil stone or sand paper as in figure 47 Wrench box Movable knife A Fixed knife igure Ad 44 Figure 45 Figure 46 Fixed knife Oil stone Figure 47 17 Adjusting wiper Manually turn pulley to make white arm carved sign align with white pulley carved sign The best position of thread take up Loos
28. s in an up stop position will stop the needle bar in a low position In short the button delivers two functions one for reverse sewing and the other for converting vertical position of the needle See Figure 18 White carved sign Reverse button Figure 17 i Up stop Down stop Figure 18 15 3 Adjustment of the Machine 1 Inserting the needle 2 Adjusting needle bar 3 Adjusting timing of needle and hook N Caution gt Always turn off the power when mounting a needle a automatically and can result in physical injuries the power is switched off due to inertia If the operator mistakenly steps on the pedal while the power is on the machine will start gt When using clutch motor be aware that the motor will continue to rotate for a while even after Start to work on the sewing machine only after the motor has come to a complete stop Place the upper end of the needle closely adhered to the upper side of the stopper hole 2 with the needle groove T facing inward Fix the needle with a fixing screw 3 See Figure 19 Figure 19 As can be seen in figure 20 pull out the rubber cover of needle bar adjusting hole and turn the pulley to place the bar at the lowest part Then loosen the needle bar clamp screw 5 and make the carved sign of the lowest bar 6 meet the lower part of needle bar down bushing 2 by moving the bar When is done fix the cl
29. ter trimming shorter and counterclockwise makes it longer The adequate length of upper thread after trimming is 30 40mm Figure 24 Upper thread tension is weak e II UI OLL Cla TL A E AY RE SS S SS SES de alee ISSS SS tr Ht UL Ve bbls rm ISSIS AN Figure 25 Figure 26 19 D Adjusting the thread release stroke a When the trimming solenoid is in action adjust to make the opening of the thread tension adjusting plate 1mm b For the adjustment loose cable fixing nut of the thread release and wire See figure 27 If the plates are closely plates are closely adhered to each other the upper thread length will be short and then the thread will release next In addition if the plates are widely adhered to each other the plates will be open and be a cause forbad tension capability Dante ee ep EE 0 5 1mm wide open Cable fixing nut of the thread release Wire Figure 27 N Caution gt After disassembling and adjusting a safety device always place it back to the original position and check whether it functions as intended D gt Use both hands when pushing the machine backward or returning it to the original position Due to the weight of the machine your hand can get stuck in the machine if you should slip gt When adjusting the machine with the switch on be sure to pay extreme caution VY gt Only trained engine
30. xed knife b Notice if a part is widened a thread is spitted into three pieces and then the thread falls out of needle after trimming And a widened b part causes trimming miss C Adjusting the trimmer driving part a It is normal to assemble as in figure 35 b Fix the trimming cam final crank to the trimming shaft as in the picture c Attach the stopper lever closely to bed in order to run trimming shaft smoothly enough not to let friction happen D Adjusting trimming solenoid a Trimming solenoid stroke The normal solenoid stroke is 4 6mm as in figure36 2 Adjust the stroke with using trimming solenoid link Movable knife Fixed knife Figure 34 91mm Stopper lever Trimming cam final crank Figure 35 4 6mm Clamp screw Trimming solenoid link Figure 36 23 b Adjusting trimming solenoid p First loosen the clamp screw of trimming solenoid link Fix solenoid base clamp screw at a point where clutch lever moves right or left smoothly When it is done attach slide arm closely to the left And then fix the clamp screw of trimming solenoid link with trimming solenoid stopper closely on the solenoid 2 Then run the solenoid The clearance between and the trimming cam crank and slide arm is 0 5mm as in figure 37 which is normal Solenoid base solenoid arm Clamp screw of solenoid base Clamp screw Trimming solenoid l
Download Pdf Manuals
Related Search