Table of Contents
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S S U U N N S S T T A A R R M M A A C C H H I I N N E E R R Y Y C C O O . . , , L L T T D D . .
User's
Manual
KM-815 Series
KM-825 Series
High post, High speed,
one-two needle, sewing
machine
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.
M M M M E E - - 0 0 5 5 0 0 5 5 0 0 9 9
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Summary of Contents for SunStar KM-815 KM-825
- Page 1 User’s Manual KM-815 Series KM-825 Series High post, High speed, one-two needle, sewing machine 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 S S U U N N S S T T A A R R M M A A C C H H I I N N E E R R Y Y C C O O .
- 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 machine ...................... 4 1. Specification........................8 1) Sewing machine ................................8 2) Clutch motor................................8 2. Installation ........................9 1) Installation of oil pan ..............................9 2) Installation of machine head............................. 10 3) Lubrication ................................11 4) Adjustment of belt tension............................ -
Page 4: Safety Rules For Machine
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] Danger Instructions here shall be observed strictly. - Page 5 1-1) Machine Only personnel with a full understanding of the safety rules should move the mobilization 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.
- Page 6 KM-815/825 series are manufactured for industry use to sew textiles and other similar 1-4) Machine material. In case of running the machine, users should observe the following things. Operation ⓐ Ahead of operating the machine, please read the manual and understand fully the details on its operation.
- Page 7 1-6) Position of “Caution” is attached to the machine for safety. In case of starting to run the machine, Caution Mark read the directions of “Cautions” carefully. [Position of Caution Mark] CAUTION 경 고 Do not operate without finger guard and safety devices.
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Page 8: Specification
Specification 1) Sewing machine MODEL KM-815 KM-825 USAGE HEAVY MATERIALS HEAVY MATERIALS STITCH LENGTH NEEDLE DP 5 # 19 DP 5 # 19 SPEED MAX 3,000 S.P.M MAX 3,000 S.P.M STITCH WIDTH MAX 5mm MAX 5mm NEEDLE BAR STROKE 33.4mm 33.4mm THREAD TAKE UP 61.5mm... -
Page 9: Installation
Installation Caution ▶ 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 41kg. At least 2 persons should carry out the installing work. ▶Plug in after the installation is complete. -
Page 10: Installation Of Machine Head
2) Installation of machine head After fixing the machine head hinge ① into the bed holes with fixing screw② and ③, rubber hinge④, stand the machine on the rubber hinge and the rubber cushion⑤. ② ① ③ ② ① ⑤ ⑤... -
Page 11: Lubrication
Caution ▶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 avoid contact with your eyes or skin. -
Page 12: Adjustment Of Belt Tension
4) Adjustment of belt tension After installing the motor, loosen 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... -
Page 13: Adjusting The Machine
Adjusting the machine Caution ▶Always turn off the power when mounting a needle. If the operator mistakenly steps on the pedal while the power is on, the machine will start automatically and can result in physical injuries. ▶When using clutch motor, be aware that the motor will continue to rotate for a while even after the power is switched off due to inertia. -
Page 14: Inserting Bobbin
Caution ▶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 cause physical injuries. ▶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. -
Page 15: Adjusting Thread Tension
5) 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 16: Adjusting Roller Presser Foot Height And Pressure
Caution ▶After disassembling and adjusting a safety device, always place it back to the original position and check whether it functions as intended. ▶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. ▶When adjusting the machine with the switch on, be sure to pay extreme caution. -
Page 17: Rotating Roller Shaft
7) Rotating roller shaft A. Raise the presser bar lifter. B. Hold the roller presser foot bracket guide ① as in Figure 17 ① and move it down and left. Then, there will be some space to exchange the gauge. C. -
Page 18: Adjusting Timing Of Needle And Feed Dog
9) Adjusting timing of needle and feed dog As in the figure, it is normal that the upper part of feed dog goes down and the needle hole meets the upper part of needle plate. If not, loosen the feed cam screws ① and move the cam position right and left to the proper match. -
Page 19: Adjusting Timing Of Needle And Hook
11) Adjusting timing of needle and hook A. Adjusting clearance between needle and edge of hook Loosen the hook base clamp screw ① and the lower shaft gear clamp screw ②. And then, move hook base right or left to make the clearance 0.05mm wide . -
Page 20: Adjusting Clearance Between Hook And Opener
12) Adjusting clearance between hook and opener The normal clearance is as follows. Loosen the opener clamp screw①. And when the opener ② is pulled to the maximum level, adjust the clearance between the arrows to 0.2mm. [Figure 24] 13) Exchanging needle width gauge set A. -
Page 21: Causes Of Trouble And Troubleshooting
Causes of Trouble and Troubleshooting 1) Sewing machine troubleshooting Symptom Checkpoints Root cause Corrective action Direction and Needle is inserted into wrong position Reinsert the needle correctly height of needle Needle Needle is bent Change the needle Bad timing of feed dog Adjust the timing of feed dog Needle breaks...
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