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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-957 Series
Post bed with driven roller
foot, one-needle, drop-feed
back tack sewing machine
KM-967 Series
Post bed with driven roller
foot, two-needle, drop-feed
back tack sewing machine
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 - - 0 0 9 9 0 0 9 9 2 2 9 9
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Related Manuals for SunStar KM-957 Series
Summary of Contents for SunStar KM-957 Series
- Page 1 USER ’ ’ S MANUAL KM-957 Series Post bed with driven roller foot, one-needle, drop-feed back tack sewing machine KM-967 Series Post bed with driven roller foot, two-needle, drop-feed back tack sewing machine 1) FOR AT MOST USE WITH EASINESS, PLEASE CERTAINLY READ THIS MANUAL BEFORE STARTING USE.
- Page 2 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 3: Table Of Contents
Table of Contents Safety rules for machines ............................. 4 1. Specification ................................8 1) Sewing machine ................................. 8 2) Servo motor .................................8 3) 470 motor ................................... 8 4) 470 motor controller ..............................8 5) Clutch motor ................................9 6) Peripheral automation devices (optional) ........................9 2. -
Page 4: Safety Rules For Machines
Safety Rules for Machines 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] Danger Instructions here shall be observed strictly. - Page 5 1-3) Troubleshooting In need of troubleshooting, call a trained A/S engineer who has been educated by Sunstar. ⓐ Be sure to turn the power off before cleaning and repair. And wait for about 4 minutes until the machine discharges completely.
- Page 6 1-4) Machine The KM-957/967 Series are manufactured for industrial use to sew textiles and other Operation similar materials. When running the machine, users should observe the followings. ⓐ Read thoroughly the manual before operation of the machine to fully understand the details about its operation.
- Page 7 1-6) Position of “Caution Mark” is attached to the machine for safety. Caution Mark When running the machine, read the directions of “Caution Mark” carefully. [Position of Caution Mark] CAUTION 경 고 Do not operate without finger guard and safety devices. Before threading, changing bobbin and needle, cleaning etc.
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Page 8: Specification
Specification 1) Sewing machine ① KM-957 (Post bed with driven roller foot, one-needle, drop-feed back tack sewing machine) Series Model name Usage Max speed Max stitch length Thread trimming Hook Needle Presser foot height KM-957-7 Thin & heavy materials 3,500 SPM 5㎜... -
Page 9: Clutch Motor
5) Clutch motor MODEL VOLT WATT HERTZ HEC-1701 1 Phase 220V 250W 50/60 Hz HEC-1703 3 Phase 220V/380V 250W 50/60 Hz HEC-1705 3 Phase 220V 400W 50/60 Hz HEC-1706 1 Phase 220V 400W 50/60 Hz 6) Peripheral automation devices (optional) OPTIONAL DEVICE MODEL USAGE... -
Page 10: Installation
Installation Warning ▶ Installation of the machine should be performed by a trained engineer. ▶ Any electrical wiring must be performed by a qualified technician or agent. ▶ The machine weighs over 54kg. At least 2 persons should carry out the installing work. ▶... -
Page 11: Installation Of Automatic Knee Lifting Solenoid And Power Switch Box
3) Installation of automatic knee lifting solenoid and power switch box ⑴ When attaching the power switch box ①, refer to Figure 3 to make sure that it is placed at the very center of the solenoid bracket ②. ⑵ Attach the solenoid to the table ④ following the assembly blueprint in the solenoid box. -
Page 12: Adjustment Of Belt Tension
5) Adjustment of belt tension After installing the motor, unfasten the fixing nuts ①,② up and down and tension will be created to the belt ④ due to motor ③ falling by gravity. Fasten the fixing nut ① initially and then fasten the fixing nut ② tightly. ④... -
Page 13: Installation And Adjustment Of Synchronizer (For Automatic Trimming Type)
8) Installation and adjustment of synchronizer (for automatic trimming type) (1) Installation of the synchronizer Installing on the servo motor (in-built synchronizer) A synchronizer sensor is attached to the back side of the arm. The appropriate clearance between the synchronizer and the pulley is 1.2mm. -
Page 14: Description Of Back Tack Button (For Automatic Trimming Type)
For 470 motor (external synchronizer) 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 Figure 10 on page 13 and align the “DOWN” film with the film adjustment baseline and the sensor housing baseline as in Figures 14 and 15. -
Page 15: Machine Adjustment
② when the groove ① of the needle is facing inward. Then, use the fixing screw ③ to fix the position of the needle. [ KM-957 Series ] [ KM-967 Series ] [Figure 17] 2) Removing bobbin and bobbin case Place the needle ①... -
Page 16: Inserting Lower Thread
3) Inserting lower thread 4) Inserting bobbin ⑴ Insert the bobbin ① into the bobbin case ②. Stop the needle ① at the highest position. Following the ⑵ Pass the thread through the “A” part of the bobbin case Figure 20, insert the bobbin (where the thread is rolled and pull out the thread from the lower thread tension onto) or the bobbin case ②... -
Page 17: Adjusting Thread Tension
6) Adjusting thread tension The result of the needlework depends on the sewing conditions such as the sewing material, used thread and stitch length. So please adjust as desired. - good sewing - upper thread tension is strong while the lower thread tension is weak - upper thread tension is weak while the lower thread tension is weak. - Page 18 ⑷ Adjusting the thread release stroke. (for automatic trimming type) If the upper thread falls out from the needle hole after trimming, check whether the plate ① opens while the trimming is in action. For the adjustment of plate opening level, put the solenoid ② in action, and adjust by moving solenoid collar ③...
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Page 19: Adjusting Roller Presser Foot Height And Pressure
7) Adjusting roller presser foot height and pressure ⑴ Adjusting the height of the presser foot Loosen the pressure adjustment screw ① and the presser bar bracket fastening screw ②, and lift the presser bar lifter ③. Make the distance between the upper side of the needle plate and the lower side of the presser foot 7mm. -
Page 20: Adjusting Feed Cam
11) Adjusting feed cam ⑴ The adjustment of the feed cam body ① will determine the timing of the feed dog and the needle. Lay the machine back and move the needle to its highest position. The standard position will be made when the baseline ② of the feed cam body ①... -
Page 21: Adjusting Timing Of Needle And Hook
13) Adjusting timing of needle and hook ⑴ Adjusting the height of the needle and the timing of hook Turn the pulley manually so that the needle will be 1.8mm from the lowest position. Then adjust so that the edge of the hook will be directly in the center of the needle. -
Page 22: Adjusting Clearance Between Upper Side Of Hook Stopper And Of Needle Plate Groove
14) Adjusting clearance between upper side of hook stopper and needle plate groove As in Figure 38, the clearance between the upper side of hook stopper and needle plate groove is set to 1~1.2mm by default. This clearance could impact the stitch tension and thread separation when trimming, so it needs to be checked. If there is a problem with the clearance, move the hook tray bushing ①... -
Page 23: Adjusting For Thread Trimmer
16) Adjusting for thread trimmer ⑴ Adjusting the trimmer driving part Fixing the position of trimming cam Turn the pulley using a hand to place the needle bar ① at its lowest position. With the left side of the trimming cam ② softly attached to the right side of the lower shaft medium bushing ③, turn the cam to align the base point ④... - Page 24 (2) Adjustment of linking device for movable knife shaft and the trimmer driving part [Figure 42] When the previously explained adjustment of trimmer driving part is complete, it is in its normal position where the trimmer shake linkage ① has returned to its up position after trimming action. First, loosen the fixing screw ②...
- Page 25 Adjusting movable knife and fixed knife As shown in Figure 44, move the movable knife ① and restore the position slowly. When doing so, fix the position of the fixed knife ③ so that edge ④ of the fixed knife ③ touches the 3mm before the fixed knife trimming point ②.
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Page 26: Exchanging Movable Knife And Fixed Knife
Adjusting lower thread holder ※ When the movable knife ① has finished trimming and returned to its original position (arrow ), loosen the fixing screw ③ so that the clearance between the movable knife edge and the edge of the lower thread holder ②... -
Page 27: Adjusting Ascending Amount Of Roller Shaft Clutch
19) Adjusting ascending amount of roller shaft clutch Open the back cover and loosen the nut ① and adjust the length of the joint linking bar C. Then, loosen the clamp screw ③ and push it so that it touches directly below the roller shaft transfer holder ④. -
Page 28: Adjustments For Km-957Sr
21) Adjustments for KM-957SR ⑴ Adjustment of Feed Dog Height Slightly loosen the fixing screw for the wheel feed dog fixing plate①, the fixing screw for the middle gear②, the fixing screw for the wheel feed dog driving gear③, and the fixing screw for the wheel feed dog height adjusting pin④. And then adjust the wheel feed dog height adjusting pin⑤... -
Page 29: Causes Of Trouble And Troubleshooting
Causes of Troubles and Troubleshooting 1) Sewing machine troubleshooting Symptom Checkpoints Root cause Corrective action Direction and height of Needle is inserted into wrong position Reinsert the needle correctly needle Needle Needle is bent Change the needle Timing of feed dog Bad timing of feed dog Adjust the timing of feed dog Needle breaks... - Page 30 Symptom Checkpoints Root cause Corrective action The gap between the The height and distance between the Readjust the movable knife setting movable knife and the movable knife and the hook do not position hook match Check the tension of Tension and contact of movable and Correct the tension adjustment and fixed knife fixed knives are bad...
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Page 31: Km-967
Table Drawing 1) KM-967... -
Page 32: Km-967-7
2) KM-967-7...