Threading a single-needle sewing machine may vary slightly depending on the specific machine model, but here is a general step-by-step guide to threading:
Wind the Bobbin: Start by winding a bobbin with thread. Follow the machine's manual to wind the bobbin correctly and insert it into the bobbin case.
Raise the Needle: Raise the needle to its highest position using the handwheel or the machine's control buttons.
Thread the Upper Thread: Take the spool of thread and place it on the spool pin at the top of the machine. Pass the thread through any thread guides or tension discs as specified by your machine's threading diagram. Typically, you'll guide the thread through a series of thread guides leading down to the needle.
Thread the Needle: Thread the upper thread through the needle from front to back. Some machines have an automatic needle threader, while others require manual threading. Refer to your machine's manual for instructions on needle threading.
Lower the Presser Foot: Lower the presser foot to secure the thread tension.
Thread the Bobbin Thread: Pull the bobbin thread through the bobbin case and position it alongside the upper thread under the presser foot. Leave a thread tail of a few inches for both the upper and bobbin threads.
Bringing Up the Bobbin Thread: Hold the upper thread with your left hand and turn the handwheel towards you (or press the machine's control button) to lower the needle and then raise it again. This will bring up the bobbin thread through the needle plate.
Pull Out Both Thread Tails: With the bobbin thread now visible above the needle plate, use your fingers or a pair of tweezers to pull out both the upper and bobbin thread tails from under the presser foot.
Check the Thread Tension: Once both thread tails are pulled out, gently hold the upper thread and bobbin thread tails and move them to the back of the machine. This helps ensure proper tension before you start sewing.
Test the Machine: Perform a few test stitches on scrap fabric to verify that both the upper and bobbin threads are correctly threaded and the tension is adjusted appropriately.
Remember to refer to your specific sewing machine's manual for any specific threading instructions or features unique to your machine model.
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