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General| Brand | Jack |
|---|---|
| Model | A4 |
| Category | Sewing Machine |
| Language | English |
Introduces models A3, A4S, and A4.
Highlights voice reminders and USB port functionality.
Guide on performing a factory reset using a single button.
Setting the number of stitches before and after backstitching.
How to activate and deactivate free sewing and thread trimming modes.
Using the W sewing function and adjusting stitch numbers.
Guide for configuring and adjusting multi-segment sewing modes.
Settings for electronic thread tension and presser foot lifter sensor.
Settings for presser foot lifter after trimming and midway operations.
Comprehensive list and description of electronic parameters for machine adjustment.
List of monitoring parameters and their corresponding descriptions.
Solutions for various error codes encountered during machine operation.
Details on armshaft oil supply, including panel internal and needle bar lubrication.
Explanation of the oil return pipe and linoleum's role in collecting excess oil.
How to adjust feed dog height, tilt, and alignment using screws.
Understanding the take-up lever's function and proper installation methods.
Steps for adjusting trimming time, hook catch, and stop position.
Step-by-step instructions for installing and removing the motor encoder.
Important announcements for correctly installing the grating film.
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