Related Manuals for SunStar KM-1070 SERIES
Summary of Contents for SunStar KM-1070 SERIES
- Page 1 USER S MANUAL KM-1070 SERIES 1-Needle, Unison Feed Lock Stitch M/C KM-1072 SERIES 2-Needle, Unison Feed Lock Stitch M/C...
- Page 3 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.
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Page 4: Table Of Contents
Contents 1. Machine safety regulations --------------------------------------------------------------------- 1-1) Transporting machine --------------------------------------------------------------------------- 6 1-2) Installing machine --------------------------------------------------------------------------------- 6 1-3) Repairing machine -------------------------------------------------------------------------------- 6 1-4) Operating machine ------------------------------------------------------------------------------- 7 1-5) Safety devices ------------------------------------------------------------------------------------- 7 1-6) Caution mark position ---------------------------------------------------------------------------- 8 1-7) Contents of marks -------------------------------------------------------------------------------- 8 2. - Page 5 6.6) Adjustment of Presser Foot Pressure ------------------------------------------------------ 29 7. Inspecting and checking ---------------------------------------------------------------------- 7.1) Daily Cleaning ------------------------------------------------------------------------------------ 30 8. Maintenance and repair ------------------------------------------------------------------------- 8.1) Adjustment of Thread Take-up Lever Spring -------------------------------------------- 32 8.2) Adjustment of Thread Guide on Thread Adjusting Device --------------------------- 33 8.3) Adjustment of Feed Dog Position ----------------------------------------------------------- 33 8.4) Height adjustment of feed dog --------------------------------------------------------------- 34 8.5) Adjustment of feed lift shaft cam and lower feed cam -------------------------------- 34...
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Page 6: Machine Safety Regulations
Machine safety regulations Safety instructions on this manual are defined as Danger, Warning and Notice. 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 during the installation, conveyance and maintenance of the machine. -
Page 7: 1-4) Operating Machine
1-4) Operating KM-1070/KM-1072 Series were designed as industrial sewing machines to perform sewing on fabric, leather, and other similar materials. Please observe the following machine instructions during machine operation. Read through this manual carefully and completely before operating the machine. Wear proper clothes for work. -
Page 8: 1-6) Caution Mark Position
1-6) Caution mark Caution mark is attached on the machine for safety. position When you operate the machine, follow the directions on the mark. Caution 1-7) Contents of marks Warning... -
Page 9: Names Of Main Parts
Names of main parts [Fig. 2-1] ① Presser Foot ② Reverse Button ③ Function Switches ④ Oil Window ⑤ Climb Dial ⑥ Thread Winder ⑦ Thread Stand ⑧ Pulley ⑨ Stitch Length Dial ⑩ OP Unit and Panel ⑪ LED Lamp SMPS ⑫... -
Page 10: Specifications
Specifications Machine Type Code Needle Code Sewing materials Code Trimming 1 Needle None Medium and heavy materials None Non-trimming 2 Needle Super heavy materials Trimming Model name KM-1070BLX-7 KM-1070BLX KM-1072BLX KM-1072BLX-7 KM-1070BLXH(-7) KM-1072BLXH Specifications For medium/heavy materials For super heavy materials Usage Automatic lubrication type Lubrication method... -
Page 11: Installation
Installation Only trained technicians should install and wire up the machine. The machine weighs over 50 kg. More than two persons should install the machine. Do not plug in the machine until installation is completed. If the operator mistakenly steps down on the pedal with the plug in, the machine will start automatically and can cause physical injuries. -
Page 13: Installation Of Sewing Machine Body
4.5) Installation of Sewing Machine Body 4.5.1) Hinge and Bed Supporting Rubber Fix the hinge rubber ① (2EA) and the bed supporting rubber ② (4EA) at the grooves on the table using nails ③. [Fig. 4-5] 4.5.2) Presser Foot Lift Cylinder Bracket Fix the presser foot lift cylinder bracket①... - Page 14 4.5.4) Lap Switch Attach the lap switch ① beneath the table ② considering the user’s working position with screws. [Fig. 4-8] 4.5.5) OP Panel Fix the operating panel① to the bracket② using a bolt③ and then fix it to the upper part of the rear arm using a bolt④.
- Page 15 4.5.7) Pedal switch and connecting rod 1) Attach pedal switch to pedal switch bracket with 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.
- Page 16 4.5.10) Belt Cover Installation 1) Fix the belt cover on the upper right side of the and the fixing grooves of the belt cover using screws 2) Accurately assemble the belt covers , and fix the belt cover using screws following the same method.
- Page 17 4.5.13) Pnematic wiring diagram by model KM-1070BLX KM-1070BLX-7 KM-1070BLXH KM-1072BLX KM-1070BLXH-7 KM-1072BLXH KM-1072BLX-7(Option) Button switch cable 4.5.14) Thread spool stand assembly Secure the thread spool stand assembly onto the table using washer and nut on the right side. [Fig. 4-16]...
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Page 18: Supplying Oil
4.6) Supplying oil 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. When handling lubricants, wear protective glasses or gloves to prevent lubricants from contacting with your eyes or skin. -
Page 19: Trial Run (Pedal Operation)
4.7) Trial run (Pedal operation) Make sure not to touch or press down parts that are operating or moving during operation. Failure to follow the safety rules may result in physical injuries or mechanical damages. Caution 1) Press pedal lightly to the position of B to check if the machine is operating low-speed sewing. -
Page 20: Back Tack Button (Thread Trimming Type)
4.9) Back tack button (thread trimming type) 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. -
Page 21: Adjusting Parameter Of Sub Thread Adjusting Device
4.11) Adjusting Parameter of Sub Thread Adjusting Device - The default value of A-95 is “0”. Parameter No. Set Value Function Name A-95 Use the main thread adjusting device①. In order to run the sub thread adjusting device② while using the main device, press the sub thread tension switch. Then with the lamp turned on, the dish for the sub thread adjusting device②... - Page 22 4) Examples of Dual Tension Application 4-1) Basic Specifications - For the sewing process of handling significant height difference of sewing material, the presser foot°Øs cross overlap and the tension of the upper thread should be increased to get best sewing quality. - Turn off the dual tension button C and adjust the tension of the main thread adjusting device according to the conditions of the main sewing material A.
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Page 23: Preparations For Sewing
Preparations for sewing 5.1) Installing needle Always turn off the power when mounting a needle. If the pedal is accidentally stepped, the machine might unexpectedly operate, causing injury. Caution 1) Turn the pulley of machine to raise needle bar to its highest position. -
Page 24: Winding Lower Thread
5.3) Winding lower thread Make sure not to touch or press down parts that are operating or moving during thread winding. Failure to follow the safety rules may result in physical injuries or mechanical damages. Caution 1) Turn on the power switch. 2) Insert bobbin into bobbin winder shaft . -
Page 25: Sewing
Sewing Wear protective gears for safety. Operation without them may lead to physical injuries. Turn off the machine in the following situations. If the operator mistakenly steps on the pedal with the plug in, the machine will start automatically and can cause severe injuries. When inserting upper thread Caution When replacing bobbin or needle... - Page 26 6.2.1) Tension adjustment of the lower thread If you turn screw② on the spring plate① mounted in hook in a clockwise direction, the lower thread tension will become stronger and when turned in a counterclockwise direction, weaker. ① ② [Fig. 6-2] 6.2.2) Upper arm thread guide ①...
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Page 27: Adjusting Upper Thread Length After Trimming
6.2.4) Supplementary thread adjusting device 1) The supplementary thread adjusting devices① play a supplementary role in strengthening thread tension in a prompt manner. 2) The tension of the supplementary thread adjusting devices① should be set lower than that of the main thread adjusting devices②. -
Page 28: Adjustment Of The Stitch Length
6.4) Adjustment of the stitch length Adjusting dial designed to control the stitch length can be set up with two different lengths, and change the stitch length whenever switch is pressed down. After pressing down switch to turn the switch on, the sewing machine will carry out sewing at the stitch length as set on dial . -
Page 29: Adjustment Of Presser Foot Pressure
6.6) Adjustment of Presser Foot Pressure Stitch Type Cause Solution Balanced good stitch Stitch skipped, inconsistent stitch length Increase pressure Puckering Decrease pressure 6.6.1) Presser Foot Pressure 1) Adjust the presser foot pressure to remain weak if possible (to the extent that the sewing fabric is slipped away) 2) Turn the pressure adjusting dial①... -
Page 30: Inspecting And Checking
Inspecting and checking To maintain proper performance of machine and use it for a long time, clean machine regularly according to the following way. Evan when machine is not in use for a long time, clean according to the following way before using the sewing machine. Caution Turn off the power switch before operation. - Page 31 If oil is below the “LOW” line , supply more lubricant following the order below. 2) Oil Supply Use the authentic SunStar lubricant. (Lubricant can be found in the accessory box). Loosen the oil supply entrance screw Supply lubricant until the oil reaches the “HIGH”...
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Page 32: Maintenance And Repair
Maintenance and repair •For machine maintenance and repair, consult with qualified technicians. •For electrical maintenance and repair, consult with qualified technicians or agencies. •When safety devices are disassembled, make sure to return them to original positions. •Use both hands when bending the machine backwards or returning it to the original position. Using only one hand can lead to severe hand injuries due to the weight of the machine. -
Page 33: Adjustment Of Thread Guide On Thread Adjusting Device
8.2) Adjustment of Thread Guide on Thread Adjusting Device When the two tightening screws are at the center of the thread guide on the thread adjusting device, this is a standard position. 1) Loosen the tightening screw and move the thread guide on the thread adjusting device left or right. -
Page 34: Height Adjustment Of Feed Dog
8.4) Height adjustment of feed dog Set the stitch count at the minimum and place the feed at the maximum height. The normal condition is that the feed dog is located 0.5mm above the needle plate . If it is not in the normal condition, take actions as below to adjust the feed dog height. -
Page 35: Needle And Hook Timing
8.6) Needle and Hook Timing Set the stitch length at minimum and place the needle at 2mm above the lowest position. Then the hook edge is positioned at the needle center. The appropriate distance between the needle groove and the hook edge is 0.1mm. -
Page 36: Clearance Adjustment Of Hook And Opener
8.7) Clearance adjustment of hook and opener Bring the opener to the hook as close as possible and loosen the fixing screw of the opener. Adjust the opener manually to allow 0.5~0.7 mm of clearance between the hook stopper and the groove of the needle plate , and tighten the fixing screw of the opener. -
Page 37: Timing Adjustment Of The Main Auxiliary Presser Foot And Needle
8.10) Timing adjustment of the main auxiliary presser foot and needle 8.10.1) Adjustment of maximum ascending amount of the main auxiliary presser foot The maximum lifting quantity of the main and auxiliary presser foot is 7 mm. First, set the upper lid dial at 1 and take out the upper lid. -
Page 38: Trimmer
8.11) Trimmer 8.11.1) Trimming Order When the pedal is stepped backward during sewing, trimming is conducted. The following is the trimming order. 1) When a trimming signal is entered, as in Figure (A), the trimming roller lever is located at the lowest part of the curved line of the trimmer cam. - Page 39 8.11.3) Fixing Screw and Lower Thread Holder When the fixed blade is half entered into the moving blade, trimming is conducted safely at the lowest possible pressure. At the time of trimming, the lower thread holder contacts the moving blade stably holding the lower thread.
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Page 40: Safety Clutch
8.12) Safety Clutch The safety device for the lower shaft timing pulley to prevent hook damage caused by thread winding around the hook or the setting disruption. 1) Slightly loosen two piston stopper screw nuts . 2) When the two piston stopper screws are turned clockwise, it increases torque, and vice versa. -
Page 41: Causes Of Troubles And Troubleshooting
Causes of troubles and troubleshooting Symptom Checkpoints Root cause Corrective action Direction and height of Needle is inserted into wrong Reinsert the needle correctly. needle direction. Needle Needle is bent. Replace the needle. Bad timing of feed dog. Adjust the timing of feed dog. Ascending level of needle Bad timing of needle and hook. - Page 42 Symptom Checkpoints Root cause Corrective action Too tight upper thread tension. Reduce tension of upper thread. Upper thread does not sink. Too loose lower thread tension. Increase tension of lower thread. Too weak upper thread tension. Increase upper thread tension. Lower thread does not sink.
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