Sewing Machine Using Popular Science

◆The handwheel, located on the far right side of the sewing machine, is cylindrical.

◆The Speed Regulator enables the operator to adjust the machine's operating speed, while the actual sewing speed is regulated by the pressure applied to the foot pedal.

◆The Stitch Length Dial enables the adjustment of the distance between the first and second needle penetrations.

◆Reverse Stitch: Operates by pressing and holding the button while depressing the foot pedal, allowing the machine to sew in reverse, effectively locking the stitch.

◆The needle in the sewing area must be replaced based on the thickness and density of the fabric being sewn.

◆Sewing Area - Presser Foot: Available in a variety of styles, each with distinct functionalities.

◆ The Sewing Area - Feed Dogs: The serrated mechanism located beneath the presser foot facilitates fabric transport.

◆ The sole mode of operation is to depress it, with the pressure applied to determine the sewing speed.

A. Threading Diagram

◆ To raise the take-up lever and needle, utilize the handwheel. Please lift the presser foot. Attach the spool of thread to the spool pin.

Please note that lifting the presser foot opens the tension discs, thereby facilitating the threading process.

◆ Guide the thread through the initial guide at the top of the machine head.

◆ Please bring the thread down and guide it along the right side of the tension discs.

◆ To secure the thread, wrap it around the tension discs, ensuring that it is securely held between the two tension discs.

◆ Please bring the thread up and around the thread take-up lever from right to left.

◆ Guide the thread through the hole in the thread take-up lever.

◆ Please bring the thread down through the thread guide.

◆ Kindly pass the thread through the needle's eye, referring to the sewing machine threading instructions.

B. Bobbin Installation

◆ Insert the bobbin into the bobbin case, with the thread running counterclockwise. When viewed from the side of the bobbin, the thread should form a "9" shape.

◆ Please thread the thread through the slot (A).

◆ Pass the thread through the tension spring (B) and into the notch (C) at the end of the tension spring, leaving a length of 7-8 cm of thread outside the bobbin case.

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