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General| Brand | typical |
|---|---|
| Model | GC0303D |
| Category | Sewing Machine |
| Language | English |
Details key specifications including model, speed, stitch length, needle, and motor output.
Instructions on checking oil level, filling oil, and changing oil for proper machine lubrication.
Guide for initial test operation, including lubrication and speed checks.
Step-by-step guide for threading the bobbin thread through the bobbin case and hook.
Detailed instructions on threading the needle with the thread take-up lever in the highest position.
How to adjust the stitch length using the dial, including tips for turning.
Instructions on starting sewing, using the reverse lever for backtacking, and feed reversal.
Guide to adjusting both needle and bobbin thread tension for optimal stitch formation.
Instructions for adjusting the pressure of the presser foot and walking foot.
How to adjust the thread tension spring position and measure tension using a gauge.
Procedure for adjusting the feed dog's maximum height relative to the needle plate.
Guide to timing the needle and feed mechanism for optimal stitch synchronization.
Steps to align the needle bar height and synchronize the hook tip with the needle.
Detailed steps for cleaning the feed dog, needle plate, hook, bobbin case, and oil pump filter.
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