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General| Brand | JUKI |
|---|---|
| Model | LK-1920 |
| Category | Sewing Machine |
| Language | English |
Identifies and explains the main components of the sewing machine unit.
Details the switches and their functions on the sewing machine's operation panel.
Instructions for securely installing the sewing machine table and its associated parts.
Step-by-step guide for installing the electrical box onto the machine table.
Details on how to correctly connect the power source cord for single and three-phase power.
Procedures for attaching the sewing machine head to the table and connecting pedal chains.
Procedures for lubricating key parts of the sewing machine head and mechanisms.
Instructions on threading the sewing machine head, including presser adjustments for LK-1920.
Procedures for inserting the bobbin with thread into the bobbin case.
Guidance on adjusting needle and bobbin thread tension for optimal stitch quality.
How to select the correct sewing machine model upon initial power-on after PCB replacement.
Instructions on how to select and set the desired pattern number for sewing.
How to input and adjust various item data like X/Y scale, sewing speed, and comments.
Detailed steps for performing sewing for both solenoid and pneumatic type machines.
How to register and use pattern keys (P1-P50) for quick access to specific sewing patterns.
Procedure for creating and performing sewing sequences using multiple patterns in a cycle.
How to set and use the machine's built-in counters for tracking sewing operations.
Methods for copying, deleting, or creating pattern data, including direct and cycle patterns.
Procedure for adjusting the needle bar height to prevent stitch skipping or needle breakage.
Steps to ensure proper alignment between the needle and the shuttle for accurate stitching.
Safety precautions and steps for replacing fuses in the main and SDC boards.
Guide to accessing and modifying settings via the memory switch function.
A comprehensive list of memory switch functions, their ranges, and initial settings.
Instructions for connecting various optional pedals (2-step, PK-57) to the sewing machine.
A detailed list of error codes, their indications, descriptions, and corrective measures.
A troubleshooting guide correlating common problems with their causes and solutions.
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