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SunStar KM-1957-7, Руководство пользователя

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1) FOR AT MOST USE WITH EASINESS,

PLEASE CERTAINLY READ THIS MANUAL

BEFORE STARTING USE.

2) KEEP THIS MANUAL IN SAFE PLACE 

FOR REFERENCE WHEN THE MACHINE 

BREAKS DOWN.

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KM-1957-7

Post Bed, Wheel Feed with
Driven Roller Foot, 1-Needle
Needle Feed Lock Stitch
Machine with Automatic
Thread Trimmer

KM-1967-7

Post Bed, Wheel Feed with
Driven Roller Foot, 2-Needle
Straight Lock Stitch Machine
with Automatic Thread
Trimmer

Содержание KM-1957-7

Страница 1: ...HINE BREAKS DOWN M MM ME E 1 11 10 04 41 12 2 USER S MANUAL R S Su un nS St ta ar r C CO O L LT TD D KM 1957 7 Post Bed Wheel Feed with Driven Roller Foot 1 Needle Needle Feed Lock Stitch Machine with Automatic Thread Trimmer KM 1967 7 Post Bed Wheel Feed with Driven Roller Foot 2 Needle Straight Lock Stitch Machine with Automatic Thread Trimmer ...

Страница 2: ......

Страница 3: ...h performance powerful operation enhanced durability and more sophisticated design to meet a number of user s needs 2 Please read this user s manual thoroughly before using the machine Make sure to properly use the machine to enjoy its full performance 3 The specifications of the machine are subject to change aimed to enhance product performance without prior notice 4 This product is designed manu...

Страница 4: ...ine Body 13 4 6 Supplying oil 17 4 7 Trial run Pedal operation 18 4 8 Machine Stop Position Check 18 4 9 Back tack button thread trimming type 19 4 10 Functional description of function switches 19 4 11 Adjusting Parameter of Sub Thread Adjusting Device 20 4 12 How to Use Dual Tension 20 5 Preparations for sewing 22 5 1 Installing needle 22 5 2 Bobbin Insertion and Removal 22 5 3 Winding lower thr...

Страница 5: ...n of feed dog 33 8 5 Adjusting the needle and hook timing 34 8 6 Adjusting the space between upper face of hook stopper and upper face of needle plate groove 35 8 7 Adjusting the space between hook and opener 35 8 8 How to adjust the thread trimmer device 36 8 9 How to adjust the gear box KM 1967 7 39 8 10 How to exchange the stitch length gauge set 40 9 Pneumatic wiring 41 10 Causes of troubles a...

Страница 6: ...oden boxes ⓑ Dust and moisture stains and rusts the machine Install an airconditioner and clean the machine regularly ⓒ Keep the machine out of the sun ⓓ 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 incl...

Страница 7: ...sible install the machine away from source of strong electrical noise such as high frequency welding machines 1 4 Operating machine Warning Notice Warning Set the machine in motion after installing necessarily a motor cover and a backside cover and turn off when monitoring or adjusting 1 5 Safety devices ⓐ Safety label It describes cautions during the machine operation ⓑ Thread take up cover It pr...

Страница 8: ...경 고 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 고압 전류에 의해 감전될 수 있으므로 커버 를 열 때는 전원을 내리고 전원 플러그를 뽑 고 나서 360초간 기다린 후 여십시오 Caution 1 2 1 7 Contents of marks Warning Caution mark is attached on the machine for safety When you operate the machine follow the directions on the mark 1 6 Caution mark po...

Страница 9: ...Back Tack Cylinder Roller Lifting Lever Sewing Machine Pulley Roller Finger Guard Control Box Power switch Knee Lifting Pad Program unit Thread stand ass y Safety Devices Thread take up cover Motor Cover Backside Cover Upper Shaft Cover Upper Cover ...

Страница 10: ...ion Production Counter Material Edge Sensor Standing Pedal SCOUND 1 SEDG 1B SEDG 2B SPDL 1 SPDL 2 Solenoid structure lifting the pressure foot automatically by pulling the pedal in single stage back Max stroke 31mm Input voltage DC 24V DC 24 46V Inhaling force of 10mm of stroke 24kg As a production counting device the completed quantity is marked on the program unit panel and the functions such as...

Страница 11: ... to press the lower part of the board leg of the machine or the whole body of machine falls backwards leading to physical injuries Figure 3 Figure 1 Figure 2 Notice Only trained technicians should install and wire up the machine The machine weighs over 55kg More than two persons should install the machine Do not plug in the machine until installation is completed If the operator mistakenly steps d...

Страница 12: ... machine to its original position while grabbing sideboard with the left hand Figure 4 Figure 5 4 4 Table drawing Please use the table provided by Sunstar When using self made table the thick of table should be more than 40mm Please use table strong enough to sustain the weight of the machine 1 Table Drawing ...

Страница 13: ...f the sewing machine bed 2 Assemble the head hinge into the fixed holder to the head hinge rubber of table and put down the body of sewing machine on the bed support rubber Please insert completely the support rod of the body into the table if not there is concern about the safety accident due to shaking of the rod when bending the body of sewing machine backwards 3 Oil Pan 1 Fix the twice incline...

Страница 14: ...ith four bolts 2 As in the Figure attach pedal switch bracket to the lower part of table 3 Connect one end of the connecting rod with pedal switch and the other end with pedal and then adjust length of the rod 6 Program Unit 1 As in the Figure combine program unit to bracket with three screws 2 Attach the combined bracket to the table with four screw Figure 10 Figure 9 Figure 11 ...

Страница 15: ...0 5Mpa by using a regulator 4 Pneumatic hose label explanation 9 Knee lifting pad 1 Assemble a knee lifting support shaft with a knee lifting bar support as shown in figure 2 Assemble a sensor presser plate and a knee support connecting crank as shown in figure 3 Fix the knee support connecting crank and the sensor presser plate to the knee lifting support shaft with fixation screws 4 Assemble a k...

Страница 16: ...or plate Assembly locations and the pneumatic hose connection if the disk is not opened 11 Installation of auto knee lifting solenoid Option and power switch box 1 A control box should be attached at the center of a solenoid bracket by checking the figure 16 2 Attach the solenoid to the table according to the figure in the solenoid box adjust the location of link bowl by loosening the fixation scr...

Страница 17: ...When handling lubricants wear protective glasses or gloves to prevent lubricants from contacting with your eyes or skin Wash your hands in running water with soap when they are smeared with lubricant If lubricant is in the eye instantly wash it with running water and see a doctor Never drink lubricants since they can cause vomiting or diarrhoea Go to see a doctor if you mistakenly drink lubricant ...

Страница 18: ...top Button of Needle Bar when the machine stops If you press the button the needle at the bottom would move up If you press the button two times consecutively the needle bar at the above would move down 2 Check the stop position of sewing machine Check the stop position of the machine after operating a needle up down by pressing the button There can be something wrong with the thread trimming func...

Страница 19: ...er stop when touching one time lightly If you touch the reverse button two times consecutively within a second the needle bar moves to the lower stop position Therefore it shares the reverse stitching function and the up down position of needle change function 4 10 Functional Description of Function Switch 1 Speed conversion switch The speed decreases to the predetermined speed if you press the sw...

Страница 20: ...ice in line with the main sewing material conditions Adjust the main thread adjusting device and the tension of the lower thread in order to create loops at the center of the sewing material at even stitch length 2 Sub Thread Adjusting Device Sub thread tension control assembly is a device that users increase easily the upper thread tension depending on the materials or the change of stepped pulle...

Страница 21: ... button and adjust the tension of sub thread control device in the B part condition of thick material with stepped pulley Conduct a general sewing work while turning off the duel tension button and progress the work according to the condition that increases the upper thread tension pressing duel tension button when reaching the position of material B with stepped pulley When the stepped pulley sti...

Страница 22: ...e optimum position as shown in figure 25 drop out the bobbin case and bobbin by opening the left right hook cover and standing the bobbin catcher Notice Always turn off the power when mounting a needle If the pedal is accidentally stepped the machine might unexpectedly operate causing injury Notice Make sure to turn off the power switch when removing the bobbin case If the pedal is accidentally st...

Страница 23: ... 2 Insert bobbin into bobbin winder shaft 3 Wind thread on bobbin several times in the arrow direction 4 Push a bobbin winder lever toward the bobbin 5 Lift the presser foot by using a presser foot lifting lever 6 When pressing pedal the machine starts to operate and thread winds on bobbin 7 The bobbin winder lever returns automatically after finishing winding thread 8 Remove bobbin and cut thread...

Страница 24: ...adequate length of upper thread extending from the needle hole is 50mm 5 6 Using knee lifer pad 1 A roller can be lifted when pressing the knee lifting pad to the right Notice Always turn off the power when inserting upper thread If the pedal is accidentally stepped the machine might unexpectedly operate causing injury Figure 30 Figure 29 50mm ...

Страница 25: ...g upper thread When replacing bobbin or needle When the machine not in use or the operator leaving the work place 6 2 Adjusting thread tension Sewing Type Cause Troubleshooting Good sewing in balance Upper thread tension is too weak Lower thread tension is too strong Upper thread tension is too strong Lower thread tension is too weak Make upper thread tension strong or make lower thread tension we...

Страница 26: ...ng devices to create stitches at regular length When the nut is turned clockwise the tension increases When the nut is turned counter clockwise the tension weakens 3 Supplementary thread adjusting device 1 The supplementary thread adjusting devices play a supplementary role in strengthening thread tension in a prompt manner 2 The tension of the supplementary thread adjusting devices should be set ...

Страница 27: ...ure 37 if you loosen the shaft screw of thread tension control and turn it clockwise with the drive on the thread tension control shaft groove the tension of thread take up spring would strengthen If you turn it counterclockwise the tension would weaken The standard tension of the thread take up spring is 50 80g 5 Operation of thread adjusting device The main and supplementary thread adjusting dev...

Страница 28: ...tension will make it long Note The adjustment of the thread tension control device KM 1976 7 is identical to the KM 1957 7 6 4 Adjusting the Stitch Length 1 As shown in figure 40 press a stitch length control button and turn the pulley until you feel the button is inserted into the groove of feed cam 2 After the button is inserted into the groove of feed cam match your desirable stitch length whic...

Страница 29: ...ccording to the following way before using the sewing machine Notice Turn off the power switch before operation Pressing pedal by mistake may operate machine and result in injuries When handling lubricants wear protective glasses or gloves to prevent lubricant from contacting with your eyes or skin Wash your hands in running water with soap when they are smeared with lubricant If lubricant is in t...

Страница 30: ...ighten the fixation screw 2 Roller lifting cylinder starts to operate during the back tack stitching so the roller shaft clutch upper and the roller shaft clutch lower is separated and the roller stops rotating 3 The space between the roller lifting cylinder and the edge of roller shaft holder nut is 17 5mm during normal stitching Notice For machine maintenance and repair consult with qualified te...

Страница 31: ... guage 3 To restart hold the roller presser foot bracket guide and turn it to the right direction 4 Adjusting automatic knee lifter optional First loosen the solenoid cover fixing screw If the joint connecting rod is moved clockwise the ascending amount of the presser foot grows It falls when turned counterclockwise After the adjustment tighten the fixing screw tightly Figure 45 Figure 46 ...

Страница 32: ...w and turn the feed cam body in the arrow direction and then tighten the feed cam body fixing screw Turn it in the opposite direction to make the feed dog faster then the needle 8 3 Adjusting feed dog height Loosen the wheel feed dog clamp screw and the wheel feed dog driving gear clamp screw and move the wheel feed dog fixing plate the wheel feed dog and the wheel feed dog driving gear so that th...

Страница 33: ... The operation direction of the back tack cylinder and the gear driving shaft is identical to the arrows in the figure 4 Interlock the wheel feed driving gear A with the feed gear without a gap under the state of pneumatic connection 5 Under this state fix the wheel feed driving gear A to the end of the gear driving shaft 6 Interlock the wheel feed driving gear A with the wheel feed driving gear w...

Страница 34: ... the lower shaft collar so that it will not move After this adjustment has been made the hook edge will be placed 1mm above the needle s thread hole top as in Figure 50 2 Adjusting the clearance between the needle and the hook edge When the needle goes up from the lowest point and the hook edge fits the needle center loosen in Figure 51 so that the clearance between the hook edge and the needle gr...

Страница 35: ...of surrounding parts The hook tray bushing is fixed with a fixing screw and when moving it vertically adjust with the hook tray bushing fixing screw hook shaft gear fixing screw the bushing adjusting pin fixing screw and the bushing adjusting pin After completion the hook shaft should turn smoothly without moving vertically Fix the lower shaft gear while the hook edge and the needle timing do not ...

Страница 36: ... shake linkage to make the roller come inside the trimming cam Adhere the stopper adjusting body with the left equal point of trimmer shake linkage to make the left equal point of the roller adhere smoothly to the left inside of the cam s complementary straight line and the right equal point of the trimmer shake linkage adhere smoothly to the inside of the stopper Once this is done tightly fasten ...

Страница 37: ...the nuts left and right Then turn the linking bar 3 Then loosen fixing screw of the movable knife shaft crank left and in the same angle as the crank right s lower assembling angle place the crank left Loosen the fixing bolt and the hinge screw to adjust the length of the linking rod Then tighten the fixing bolt and the hinge screw 3 Adjusting movable and fixed knives 1 Adjusting the position of m...

Страница 38: ...or the left crank linking rod to the left so that there is no excess room in each linking device When this is done the roller gets to adhere to the right side of the cam s complementary straight line as can be seen in the picture While maintaining this position adjust to make the movable knives on the right and the left protrude about 0 5 1mm from the fixed knife edge Now tightly fasten the crank ...

Страница 39: ...e If the edge of the knife is too dull sharpen the edge using oil stone or sand paper 5 Exchanging movable knife and fixed knife 1 Open the hook cover 2 Loosen the screw and remove the fixed knife holder cover 3 Loosen the fixing screw to disassemble the washer and fixed knife 4 Loosen the bolt and dissemble the movable knife To assemble follow the reverse order of disassembling 8 9 Adjusting gear...

Страница 40: ...he screws as can be seen in the picture and replace the feed dog or adjust the distance between the hook edge and the needle Fasten after making the adjustments 8 10 Exchanging needle width gauge set 1 Disassembling order Caution Turn off the power switch 1 Open the hook cover 3 Remove the needle 7 Disassemble the post needle plate bracket 6 Disassemble the auxiliary needle plate and the main need...

Страница 41: ...neumatic wiring when using auto knee lifter 1 KM 1957 7 Pneumatic wiring A B connection is same as the existing method Refer to 1957 7 1967 7 pneumatic wiring A B Thread open sensor Assembled to the bed support Thread open sensor Assembled to the bed support ...

Страница 42: ... needle tip Thread passing at wrong position Wrong timing of needle and hook Wrong timing of needle and hook Wrong timing of needle and hook Remaining length of upper thread is short Due to bobbin racing during trimming lower thread dropping from bobbin case becomes too short to go up Racing proof spring of bobbin case Unable to lift lower thread due to weak take up lever spring Take up lever spri...

Страница 43: ...f upper thread Check thickness of needle Adjust the up stop position of needle 7 Upper thread is pulled out when sewing commences Too tight upper thread tension Too loose lower thread tension Too weak upper thread tension Too strong lower thread tension Reduce tension of upper thread Increase tension of lower thread Increase upper thread tension Decrease tension of lower thread Upper thread does n...

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