To Next PageTo Next PageWhy does the needle keep breaking on my SunStar KM-2300?
If the needle breaks in your SunStar Sewing Machine, several factors could be responsible. First, ensure the needle is correctly inserted. If it's bent, replace it. Additionally, check the timing of the feed dog, needle, and hook; adjustments may be needed to resolve the issue.
General| Brand | SunStar |
|---|---|
| Model | KM-2300 |
| Category | Sewing Machine |
| Language | English |
Guidelines for safely moving the sewing machine, emphasizing proper handling and personnel.
Guidelines for selecting an appropriate installation location and ensuring proper setup for safe operation.
Procedures and precautions for machine repair, stressing the use of qualified personnel and genuine parts.
Essential guidelines for operating the KM-2300 series sewing machine safely and effectively.
Identification and explanation of various safety features incorporated into the sewing machine.
Details the placement of safety caution marks on the machine for user awareness.
Explains the meaning and significance of various caution and warning symbols found on the machine.
Guidance on selecting a suitable environment for machine installation to prevent interference and ensure proper function.
Safety instructions for transporting and delivering the sewing machine, requiring multiple people.
Procedures for safely tilting the machine, emphasizing the use of both hands to prevent injury.
Technical diagram detailing the dimensions and specifications for constructing or using a suitable sewing machine table.
Step-by-step instructions for mounting the sewing machine head onto the table and connecting components.
Instructions for installing the oil pan assembly, including hinge rubbers and cushion rubbers.
Procedure for assembling and fixing hinge rubbers onto the table for machine mounting.
Instructions for removing the deflation bushing cap to prevent oil spillage from the gearbox.
Steps for correctly mounting the machine body onto the table, ensuring stability and safety.
Procedure for attaching the program unit and its bracket to the upper part of the machine body.
Instructions for fixing the thread stand assembly to the table.
Procedure for attaching and adjusting the knee lifter pad to the oil pan.
Steps to adjust the presser foot height using a pulley and adjusting screw for proper sewing.
Detailed instructions and safety precautions for supplying oil to the machine, ensuring correct levels.
Procedure for performing a trial run using the pedal to check machine operation at different speeds.
Specific installation steps for the KM-2310 Series, including magnet and lubricant supply.
Step-by-step guide for correctly installing the needle, ensuring proper orientation and fixing.
Procedure for safely removing the bobbin case, including precautions for power.
Instructions for winding the lower thread onto the bobbin, including adjustments for capacity.
Detailed steps for correctly installing the bobbin case and passing the thread through its tension spring.
Guide on correctly inserting the upper thread, ensuring proper length and thread take-up position.
Explanation of how to operate the knee lifter pad to raise and lower the presser foot.
Basic procedure for starting and operating the sewing machine, including power and pedal use.
Instructions on how to perform back tack (reverse) sewing using the reverse switch or lever.
Guidance on adjusting both upper and lower thread tension for balanced and proper sewing.
Procedure for adjusting the length of the upper thread remaining after the trimming process.
Steps to adjust the presser foot pressure for different sewing materials to ensure proper feed.
Routine cleaning procedures for maintaining the sewing machine's performance and longevity.
Instructions for checking and supplying oil to the machine's gearbox, ensuring correct oil levels.
Procedure for checking oil flow in the oil tank for specific KM-2300 models.
Basic checks to perform on the needle and thread insertion before trial sewing.
Guidance on supplying and the greasing cycle for KM-2300S and F models.
Procedure for adjusting the thread take-up spring to ensure correct thread tension and feeding.
Steps to adjust the right arm thread guide based on material type for optimal thread flow.
Detailed steps for adjusting the presser foot height to the standard 5.5mm and setting pressure.
Procedure for adjusting the wiper's position relative to the needle for effective thread wiping.
Steps to adjust the needle bar height, aligning it with the needle bar bushing.
Instructions to adjust the height and slope of the feed dog for proper fabric feeding.
Procedure for setting the correct timing between the needle and the feed dog's conveying mechanism.
Detailed steps for aligning the needle and hook for optimal stitch formation and timing.
Procedure to adjust the timing of the thread trimming mechanism for precise cutting.
Instructions for adjusting and replacing the fixed and movable knives in the thread trimming system.
Guide on adjusting the bobbin stopper to ensure correct thread length for subsequent sewing.
Procedure for adjusting the oil flow to the hook mechanism for KM-2300M & S types.
Instructions for adjusting oil supply to the thread take-up lever and hook for KM-2310 Series.
Procedure for adjusting the lifting amount of the automatic knee lifter mechanism.
A guide to identifying common sewing machine problems, their root causes, and corrective actions.
