Singer 3321 Instruction Manual

Pages 62

Year 2010

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Singer 3321 Specification

The Singer 3321 is a versatile mechanical sewing machine designed to cater to both beginners and experienced users. It features a robust selection of 21 built-in stitches, which include essential, decorative, and stretch stitches, offering a wide range of sewing applications. The machine is equipped with an automatic 4-step buttonhole function, simplifying buttonhole creation for garments and home projects.

It incorporates a heavy-duty metal frame that ensures durability and skip-free sewing, providing stability even when tackling thicker fabrics. The top drop-in bobbin system with a clear view cover allows for easy monitoring and quick threading, minimizing disruptions during sewing sessions. The adjustable stitch length and width offer greater control over stitch customization, enabling precise and professional results.

The Singer 3321 comes with an automatic needle threader, a feature that significantly reduces eye strain and threading time. Its free arm capability enhances versatility, making it convenient to sew cuffs, collars, and other cylindrical items. The machine also includes an array of accessories, such as various presser feet, bobbins, needles, a seam ripper, and a soft dust cover, which expand its functionality and ease of use.

Additionally, the machine's dual spool pins facilitate twin needle sewing, providing an opportunity for creative stitching designs and techniques. With a powerful motor and efficient design, the Singer 3321 supports smooth and consistent sewing across a range of fabric types, from lightweight silks to heavier denim. Its user-friendly design, combined with its range of features, makes the Singer 3321 a reliable choice for a diverse array of sewing tasks.

Singer 3321 F.A.Q.

How do I thread the Singer 3321 sewing machine?

To thread the Singer 3321, raise the presser foot and turn the handwheel toward you to raise the needle to its highest position. Place the spool of thread on the spool pin and follow the threading path indicated by the numbered arrows on the machine. Ensure the thread passes through the tension discs and the take-up lever before threading the needle from front to back.

Why does the thread keep bunching under the fabric?

Thread bunching, or 'birdnesting', is often caused by incorrect threading, incorrect bobbin insertion, or tension issues. Ensure both the upper thread and bobbin are threaded correctly. Check the tension settings and adjust if necessary. Also, clean any lint or debris around the bobbin case.

How can I adjust the tension on the Singer 3321?

To adjust the tension, use the tension dial located on the front of the machine. For normal sewing, the setting should be between 3 and 5. Increase the tension if the stitches are too loose and decrease if they are too tight. Always test on a scrap piece of fabric first.

What should I do if the needle breaks while sewing?

If the needle breaks, first turn off the machine. Carefully remove the broken needle and replace it with a new one appropriate for the fabric you are using. Check for any obstructions or issues with the needle plate and make sure the needle is inserted correctly.

How often should I oil my Singer 3321 sewing machine?

The Singer 3321 should be oiled every 8-10 hours of sewing or at least once a month if used frequently. Use sewing machine oil and apply it as directed in the manual, focusing on the hook area and other moving parts. Always clean the machine before oiling.

Why is my Singer 3321 skipping stitches?

Skipping stitches can be caused by a bent or dull needle, incorrect needle size, or incorrect threading. Replace the needle with a new one that matches the fabric type. Check the threading, especially around the take-up lever, and make sure the presser foot is down during sewing.

How do I change the presser foot on the Singer 3321?

To change the presser foot, raise the presser foot lifter and the needle to its highest position. Press the presser foot release lever located at the back of the presser foot holder to remove the foot. Align the new presser foot and lower the presser foot lifter to snap it into place.

What maintenance tasks should I perform regularly on my Singer 3321?

Regular maintenance tasks include cleaning the bobbin area, changing the needle regularly, checking for lint build-up, oiling the machine, and ensuring it is threaded correctly. Refer to the manual for detailed instructions on cleaning and maintaining your machine.

Can I use a twin needle with the Singer 3321?

Yes, the Singer 3321 can use a twin needle. Ensure you have an additional spool pin and follow the instructions in the manual for threading both needles. Adjust the stitch width to avoid hitting the presser foot, and select a straight stitch for best results.

How do I troubleshoot the machine if it won't start?

If the machine won't start, check that it is properly plugged in and the power switch is turned on. Ensure the foot pedal is connected. If it still doesn't start, check the power outlet or try a different one. Consult the manual or contact support if the issue persists.