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General| Brand | Singer |
|---|---|
| Model | 321C 131M-04 |
| Category | Sewing Machine |
| Language | English |
Basic safety procedures to be followed when operating the machine.
Precautions for safe operation to avoid electric shock and injuries.
Description of the high-speed overlock machine.
Detailed specifications including model, needle, thread, gauge, etc.
Information about the motor, its pulley, and belt type.
Diagram showing dimensions for table cut-out.
Instructions and diagrams for installing the machine on a table.
Procedures for lubricating the machine and draining oil.
Instructions for attaching or replacing the needle.
Guidance on threading the machine for different configurations.
How to adjust thread tension for optimal stitching.
Adjusting guides for looper thread tension.
Adjusting the chain looper thread cam.
How to adjust the differential feed rate for fabric handling.
Adjusting the stitch length using the wheel and scale.
Information on the relationship and timing of machine parts.
Setting the distance and alignment between needle and needle plate.
Adjusting the distance between the upper looper and needle.
Adjusting the distance between the lower looper and needle.
Setting the distance between upper and lower loopers.
Setting the space between the needle and needle guard.
Setting the distance between the chain looper and needle.
Instructions for cleaning the machine head.
Procedures for changing oil and cleaning the oil filter.
Checklist for regular safety checks of the machine.
Causes and solutions for broken needles.
Causes and solutions for broken threads.
Common stitching failures and their remedies.
Causes and solutions for skipped stitches.
Exploded view and list of frame components.
Exploded view and list of cloth plate components.
Exploded view and list of cover components.
Exploded view and list of main shaft components.
Exploded view and list of needle bar components.
Exploded view and list of thread guide components.
Exploded view and list of upper looper components.
Exploded view and list of lower looper components.
Exploded view and list of front looper components.
Exploded view and list of cam components.
Exploded view and list of differential feed components.
Exploded view and list of feed dog components.
Exploded view and list of trimming components.
Exploded view and list of presser foot components.
Exploded view and list of lubrication components.
Exploded view and list of feed snap components.
Exploded view and list of thread spool components.
Exploded view and list of plate row material components.
List of accessories included with the machine.
List of gauge parts for different machine models.
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