Table of Contents
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S S u u n n S S t t a a r r C C O O . . , , L L T T D D . .
R
USER ' ' S MANUAL
KM-1170 SERIES
1-Needle, Unison Feed
Lock Stitch M/C
KM-1172 SERIES
2-Needle, Unison Feed
Lock Stitch M/C
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.
M M M M E E - - 1 1 2 2 0 0 2 2 0 0 1 1
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Related Manuals for SunStar KM-1172BLX
Summary of Contents for SunStar KM-1172BLX
- Page 1 USER ’ ’ S MANUAL KM-1170 SERIES 1-Needle, Unison Feed Lock Stitch M/C KM-1172 SERIES 2-Needle, Unison Feed Lock Stitch M/C 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.
- 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 ------------------------------------------------------ 33 7. Inspecting and checking ---------------------------------------------------------------------- 7.1) Regular Check Points -------------------------------------------------------------------------- 34 7.2) Cleaning ------------------------------------------------------------------------------------------- 35 7.3) Daily Cleaning ------------------------------------------------------------------------------------ 35 8. Maintenance and repair ------------------------------------------------------------------------- 8.1) Adjustment of Thread Take-up Lever Spring -------------------------------------------- 37 8.2) Adjustment of Thread Guide on Thread Adjusting Device --------------------------- 38 8.3) Adjustment of Feed Dog Position ----------------------------------------------------------- 38 8.4) Height adjustment of feed dog --------------------------------------------------------------- 39...
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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-1170/KM-1172 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. ⓑ... -
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 주 의 Do not operate without finger guard and safety devices. Before threading, changing bobbin and needle, cleaning etc. switch off main switch. -
Page 9: Names Of Main Parts
Names of main parts ⑦ ⑩ ⑥ ⑤ ⑧ ⑮ ⒔ ⑨ ① ④ ③ ② ⒃ ⑬ ⑫ ⑭ ⑪ [Fig. 2-1] ① Presser Foot ② Reverse Button ③ Function Switches ④ Oil Window ⑤ Climb Dial ⑥ Thread Winder ⑦... -
Page 10: Specifications
Medium and heavy materials None Non-trimming None 2 Needle Trimming Super heavy materials Model name KM-1170BLX KM-1170BLX-7 KM-1172BLX KM-1172BLX-7 KM-1170BLXH KM-1172BLXH Specifications Usage For medium/heavy materials For super heavy materials Lubrication method Automatic lubrication type Needle Thread trimming style Non-trimming Thread trimming... - Page 11 ⊙ Speed Max. Sewing speed[RPM] Intersection of presser foot For medium/heavy materials For super heavy materials KM-1170BLX-7 KM-1172BLX-7 KM-1170BLXH KM-1172BLXH 3.5 under 3,500(3,000) 3,000 2,800 2,000 3.5~4.0 3,200(3,000) 2,800 2,600 1,900 4.0~4.5 2,900 2,600 2,400 1,800 4.5~5.0 2,600 2,400 2,200 1,750 5.0~5.5...
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Page 12: 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 15: Installation Of Sewing Machine Body
4.5) Installation of Sewing Machine Body ① ③ 4.5.1) Hinge and Bed Supporting Rubber 1) Fix the hinge rubber ① (2EA) and the bed supporting rubber ② (4EA) at the grooves on the table using nails ③. 2) Adjust the height of the bed and the table with the accessories that are hinge rubber spacer and bed- ②... - Page 16 4.5.4) Lap Switch Attach the lap switch ① beneath the table ② considering the user’s working position with screws. ① ② [Fig. 4-9] 4.5.5) OP Panel ⑥ ① Fix the operating panel① to the bracket② using a ③ ② bolt③ and then fix it to the upper part of the rear arm ①...
- Page 17 4.5.7) Pedal switch and connecting rod 1) Attach pedal switch ① to pedal switch bracket ② with four bolts ③. 2) As in the Figure, attach pedal switch bracket ② ③ to the lower part of table. 3) Connect one end of the connecting rod ④ with pedal switch and the other end with pedal, and ②...
- Page 18 4.5.9) Adjustment of Belt Tension (Non-trimming model) 1) Semi-direct Drive Motor Specifications Tightening the screw in the middle of motor bracket hole① is the standard. However, the tension is increasing when the screw is tightened on the left of the motor bracket hole and the tension is decreasing when the screw is tightened on the right of the hole.
- Page 19 (2) V-Belt Drive Motor Specifications 1) Fix the belt cover on the upper right side of the ② ③ arm ① and the fixing grooves of the belt cover ① ② using screws ③. ⑥ 2) Accurately assemble the belt covers②,④ and fix the belt cover②...
- Page 20 4.5.13) Pnematic wiring diagram by model KM-1170BLX-7 KM-1170BLXH KM-1172BLX-7 KM-1172BLXH Ⓑ Ⓑ Ⓐ Ⓐ Terminal S5 Terminal S5 S7up S7up S7down S7down KM-1172BLX-7(Option) Ⓑ Ⓐ Terminal S5 S7up S7down [Fig. 4-20] 4.5.14) Thread spool stand assembly ① Secure the thread spool stand assembly① onto the table using washer②...
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Page 21: 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 22: 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 23: Back Tack Button (Thread Trimming Type)
[Fig. 4-28] 4.10) Functional description of function switches KM-1170BLX : Stitch length conversion switch KM-1172BLX When the switch is turned on, the lower positioned dial among the two stitch length setting dials attached to the machine is applied. When the switch... -
Page 24: 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 Press the sub thread tension operation switch to operate second thread tension adjusting device② when stitching and using main thread tension adjusting device① then the plate of the device②... - Page 25 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 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 26: Method For Adjustment Of A Potentiometer
4.13) Method for Adjustment of a Potentiometer ■ ■ How to set How to operate Screen display Details Turn on the power •Sewing initial screen Press button, then press button while holding down •Initial screen for parameter group A button to change screen Press button to move to parameter number 27 •P1 setting screen for group A item 27... -
Page 27: 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 28: 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 bobbin①... -
Page 29: 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 30 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) Thread Trimming Sub Thread Tension Adjusting Device ①...
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Page 31: 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. ① 2) The tension of the supplementary thread adjusting devices① should be set lower than that of the main thread adjusting devices②. -
Page 32: Adjustment Of The Stitch Length
6.4) Adjustment of the stitch length ① Adjusting dial① and ② designed to control the stitch length can be set up with two different lengths, and change the stitch length whenever switch③ is pressed down. After pressing down switch ③ to turn the switch on, the sewing machine will carry out sewing at the ④... -
Page 33: 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 34: 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 35: Cleaning
7.2) Cleaning 7.2.1) Cleaning Frequency and Method 1) Make sure to turn off the power of the machine before cleaning. 2) The parts disassembled for cleaning should be assembled in the reverse order of disassembly. Caution Required Parts for Cleaning Cleaning Frequency Around Hook Daily... - Page 36 • If oil is below the “LOW” line ④, supply more lubricant following the order below. Low ④ 2) Oil Supply • Use the authentic SunStar lubricant. (Lubricant can be found in the accessory box). • Loosen the oil supply entrance screw ①. ⑤...
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Page 37: 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 38: Adjustment Of Thread Guide On Thread Adjusting Device
8.2) Adjustment of Thread Guide on Thread Adjusting Device When the two tightening screws ② are at the center of the thread guide ① on the thread adjusting device, this is a ① standard position. 1) Loosen the tightening screw ② and move the thread guide ①... -
Page 39: Height Adjustment Of Feed Dog
8.4) Height adjustment of feed dog Set the stitch count at the minimum and place the feed dog① at the maximum height. The normal condition is that the feed dog① is located 1mm above the needle ① plate②. If it is not in the normal condition, take actions ④... -
Page 40: Needle And Hook Timing
8.6) Needle and Hook Timing Set up the stitches at the minimum and put the needle① ② 2mm above the lowest position, then the blade of hook 0.1mm ② is in the middle of the needle(or 2/3 position ① downward). The appropriate distance between the needle groove and the hook edge②... -
Page 41: Clearance Adjustment Of Hook And Opener
8.7) Clearance adjustment of hook and 1.2~1.3 3.5 0.2~0.3 opener Bring the opener① to the hook② as close as possible ④ ⑤ and loosen the fixing screw③ of the opener. Adjust the ② open space between hook stopper④ and the groove⑤ of the needle plate to 1.2~1.3mm then tighten the opener screw③... -
Page 42: Timing Adjustment Of The Main·auxiliary Presser Foot And Needle
8.10) Timing adjustment of the main· auxiliary presser foot and needle ③ 8.10.1) Adjustment of maximum ascending amount of the main·auxiliary presser foot The maximum overlapping portion of main and sub ② ③ presser foot is 8mm. First of all, set the upper cap ④... -
Page 43: 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 ① is located at the lowest part of the curved line of the trimmer cam. - Page 44 8.11.2) Adjustment of Moving Blade The moving blade① moves the upper and lower ⑤ threads to the point of the fixed blade⑥. At this time, the moving blade① rotates while it does not ⑧ ⑥ touch the bobbin case, and trimming occurs through ④...
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Page 45: Safety Clutch
8.11.4) Adjustment of Trimmer Cam and Lever The location of the trimmer cam① is determined by ③ ⑨ ⑤ the movement of the moving blade②. Upon ⑥ trimming, the trimming lever roller③ contacts the lowest curved line of the trimmer cam. However, ④... -
Page 46: 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 47 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.