After-sales repair
To build a century-old brand and the most reliable sewing brand in the world
Knife assembly and thread-cutting bracket adjustment
Optical Eye Alarm Adjustment Plan 2
The light indicator is on, but the wire cannot be cut.
Optical eye adapts and adjusts to various fabrics.
Emergency Plan for Optic Nerve Damage
Unbreakable thread handling
Thread length adjustment
Presser foot height adjustment
Adjustment of the presser foot lift and thread-cutting crank
Fabric and Sewing Mode Selection
Method for Adjusting the Length of Step-Feed Wire Cutting
Essential procedures before powering on the machine for the first time or after a long period of disuse
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