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General| Built-in Light | No |
|---|---|
| Needle | Single needle |
| Application | Lightweight fabrics, finishing, decorative stitching |
| Bobbin Type | Looper(s), no bobbin |
| Tension Control | Manual |
| Presser Foot | Standard |
| Power Source | Electric |
| Material | Metal |
Details on machine lubrication, oil type, and filter screen maintenance.
Procedure for cleaning lint and debris from the sewing machine.
Instructions for removing and inserting sewing machine needles.
Guidance on thread installation and rethreading procedures.
Steps to adjust thread tension for optimal stitch quality.
Visual guides illustrating the correct thread path for various setups.
Procedure for adjusting the stitch width using the upper and lower knives.
Detailed instructions for setting the upper and lower cutting knives.
Steps to change the stitch length using the feed eccentric mechanism.
Instructions for setting differential feed ratios for fabric stretching or gathering.
Guidance on adjusting presser foot pressure for proper material feeding.
Procedure for setting the correct vertical position of the needle bar.
Instructions for aligning needle guards to prevent damage and ensure smooth operation.
Procedure for setting the correct clearance and position of the left looper.
Procedure for setting the correct clearance and position of the right looper.
Instructions for adjusting the right looper lever for proper timing.
Procedure for setting the correct clearance and position of the chainstitch looper.
Steps to adjust the vertical position of the chainstitch looper.
Adjusting chainstitch looper movement to avoid interference with other parts.
Procedure for adjusting the tilt and height of the feed dogs for material feeding.
Ensuring the presser foot arm is properly aligned with the machine arm.
Setting the correct maximum lift height for the presser foot.
Adjusting the thread take-up eyelets and bracket for the chainstitch looper.
Description and use of specialized timing gauges for machine adjustments.
Reference chart for converting measurements between metric, inch, and fractional units.
Diagram and parts list for the main machine bed frame component.
Parts and diagrams for the main frame and various external covers.
Parts and diagram for the crankshaft and related drive components.
Parts and diagram for the needle bar and its driving components.
Parts and diagram for the right looper drive assembly.
Parts and diagram for the left looper drive assembly.
Parts and diagram for the chainstitch looper drive components.
Parts and diagram for the main and differential feed drive systems.
Parts and diagram for the upper and lower knife cutting assembly.
Parts and diagram for the presser foot, lift, and related mechanisms.
Parts and diagram for the machine's oil pump and lubrication system.
Parts and diagrams for various optional attachments for the sewing machine.
Parts list and diagram for the shirring attachment.
Parts list and diagram for the KSU-320 chain cutter attachment.
Parts list and diagram for the KSU-520 chain cutter attachment.
Parts list and diagram for the VSA-200 suction device.
List and diagrams of general sewing machine accessories.
Parts for specific semi-submerged machine installation setups.
Parts list and diagram for the thread stand accessory.
Configuration and parts details for the 503/IV-44 model for serging trousers.
Configuration and parts details for the 504/IV-7 model for plain seaming.
Configuration and parts details for the 514/IV-11 model for 2-needle seaming woven fabrics.
Configuration and parts details for the 515/IV-26 model for general seaming on fabrics.
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