Why does the needle break on my SunStar Sewing Machine?
The needle may break due to several reasons: it might be inserted incorrectly, in which case you should reinsert the needle correctly. Alternatively, the needle could be bent, requiring a needle replacement. Also, the timing of the feed dog could be off, so adjust the timing of the feed dog. Finally, the timing between the needle and the looper might be bad and require adjustment.
General| Free Arm | Yes |
|---|---|
| Stitch Length | Adjustable |
| Stitch Width | Adjustable |
| Included Accessories | needle set, bobbins, seam ripper, screwdriver |
| Weight | 5.5 kg |
Explains the meanings of various safety symbols and marks used in the manual.
Safe procedures for moving, installing, and preparing the sewing machine.
Safety precautions to follow during machine troubleshooting and repair.
Guidelines for safe operation and description of built-in safety features.
Identifies locations of caution marks and summarizes their associated warnings.
Detailed specifications for the automatic trimmer feature.
Technical details for the servo motor and the 470 motor.
Specifications for the 470 motor controller.
Information on optional accessories for automated sewing.
Step-by-step guide for installing the sewing machine head unit.
How to set up and maintain the machine's lubrication system.
Proper method for adjusting the tension of the drive belt.
Instructions for securely attaching the safety belt cover.
Steps for assembling and calibrating the location detector system.
Checking the correct needle stop position for optimal performance.
Procedures for inserting needles and adjusting the needle bar.
Setting the precise timing between the needle and looper.
How to adjust the oil flow for the thread take-up lever.
Procedures for checking and adjusting oil supply to the lower shaft.
Correctly routing the upper thread and setting initial tension.
Advanced adjustments for upper thread tension and release.
Adjusting the height and tension of the presser foot.
Adjusting the optional automatic knee-lifting system.
Adjusting the feed dog's height and angle for material feed.
Synchronizing feed cam and trimmer timing for smooth operation.
A guide to identifying common sewing problems, their causes, and solutions.
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