After-sales repair
To build a century-old brand and the most reliable sewing brand in the world
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
Adjustment Method for Machine Needle Skipping and Thread Breakage
Adjustment methods for when the cutter does not move or cannot cut the line
Method for Adjusting the Presser Foot Height
Method for Adjusting the Maximum Rotational Speed
Installation and Operation of the 9811 Button-Attaching Machine – Adjusting the Protective Cylinder
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